dnl Process this file with autoconf to produce a configure script.
AC_INIT([collectd],[m4_esyscmd(./version-gen.sh)])
-AC_CONFIG_SRCDIR(src/collectd.c)
+AC_CONFIG_SRCDIR(src/)
AC_CONFIG_HEADERS(src/config.h)
AC_CONFIG_AUX_DIR([libltdl/config])
ac_system="Solaris"
;;
*darwin*)
+ AC_DEFINE([KERNEL_DARWIN], 1, [True if program is to be compiled for a Darwin kernel])
ac_system="Darwin"
;;
*openbsd*)
+ AC_DEFINE([KERNEL_OPENBSD], 1, [True if program is to be compiled for an OpenBSD kernel])
ac_system="OpenBSD"
;;
*aix*)
esac
AC_MSG_RESULT([$ac_system])
+AM_CONDITIONAL([BUILD_LINUX],[test "x$x$ac_system" = "xLinux"])
+AM_CONDITIONAL([BUILD_SOLARIS],[test "x$x$ac_system" = "xSolaris"])
+AM_CONDITIONAL([BUILD_DARWIN],[test "x$x$ac_system" = "xDarwin"])
+AM_CONDITIONAL([BUILD_OPENBSD],[test "x$x$ac_system" = "xOpenBSD"])
+AM_CONDITIONAL([BUILD_AIX],[test "x$x$ac_system" = "xAIX"])
+AM_CONDITIONAL([BUILD_FREEBSD],[test "x$x$ac_system" = "xFreeBSD"])
+
if test "x$ac_system" = "xLinux"
then
AC_ARG_VAR([KERNEL_DIR], [path to Linux kernel sources])
#endif
])
-AC_CHECK_HEADERS(pwd.h grp.h sys/un.h ctype.h limits.h xfs/xqm.h fs_info.h fshelp.h paths.h mntent.h mnttab.h sys/fstyp.h sys/fs_types.h sys/mntent.h sys/mnttab.h sys/statfs.h sys/statvfs.h sys/vfs.h sys/vfstab.h kvm.h wordexp.h)
+AC_CHECK_HEADERS(pwd.h grp.h sys/un.h ctype.h limits.h xfs/xqm.h fs_info.h fshelp.h paths.h mntent.h mnttab.h sys/fstyp.h sys/fs_types.h sys/mntent.h sys/mnttab.h sys/statfs.h sys/statvfs.h sys/vfs.h sys/vfstab.h sys/vmmeter.h kvm.h wordexp.h locale.h)
# For the dns plugin
AC_CHECK_HEADERS(arpa/nameser.h)
# Checks for library functions.
#
AC_PROG_GCC_TRADITIONAL
-AC_CHECK_FUNCS(gettimeofday select strdup strtol getaddrinfo getnameinfo strchr memcpy strstr strcmp strncmp strncpy strlen strncasecmp strcasecmp openlog closelog sysconf setenv if_indextoname)
+AC_CHECK_FUNCS(gettimeofday select strdup strtol getaddrinfo getnameinfo strchr memcpy strstr strcmp strncmp strncpy strlen strncasecmp strcasecmp openlog closelog sysconf setenv if_indextoname setlocale)
AC_FUNC_STRERROR_R
# undef _LARGEFILE64_SOURCE
#endif
#include <sys/stat.h>
+#include <sys/param.h>
#include <sys/swap.h>
+#include <unistd.h>
]]],
[[[
int num = swapctl(0, NULL);
# undef _LARGEFILE64_SOURCE
#endif
#include <sys/stat.h>
+#include <sys/param.h>
#include <sys/swap.h>
+#include <unistd.h>
]]],
[[[
int num = swapctl(0, NULL, 0);
uint8_t c[8];
double d;
- d = 8.642135e130;
+ d = 8.642135e130;
memcpy ((void *) &i0, (void *) &d, 8);
i1 = i0;
uint8_t c[8];
double d;
- d = 8.642135e130;
+ d = 8.642135e130;
memcpy ((void *) &i0, (void *) &d, 8);
i1 = endianflip (i0);
uint8_t c[8];
double d;
- d = 8.642135e130;
+ d = 8.642135e130;
memcpy ((void *) &i0, (void *) &d, 8);
i1 = intswap (i0);
AC_MSG_ERROR([Didn't find out how doubles are stored in memory. Sorry.])
fi; fi; fi
+# --with-useragent {{{
+AC_ARG_WITH(useragent, [AS_HELP_STRING([--with-useragent@<:@=AGENT@:>@], [User agent to use on http requests])],
+[
+ if test "x$withval" != "xno" && test "x$withval" != "xyes"
+ then
+ AC_DEFINE_UNQUOTED(COLLECTD_USERAGENT, ["$withval"], [User agent for http requests])
+ fi
+])
+
+# }}}
+
have_getfsstat="no"
AC_CHECK_FUNCS(getfsstat, [have_getfsstat="yes"])
have_getvfsstat="no"
)],
[c_cv_have_htonll="yes"],
[c_cv_have_htonll="no"]
- )
+ )
)
if test "x$c_cv_have_htonll" = "xyes"
then
#include <sys/user.h>
])
-AC_CHECK_MEMBERS([struct kinfo_proc.kp_proc, struct kinfo_proc.kp_eproc],
+AC_CHECK_MEMBERS([struct kinfo_proc.p_pid, struct kinfo_proc.p_vm_rssize],
[
AC_DEFINE(HAVE_STRUCT_KINFO_PROC_OPENBSD, 1,
[Define if struct kinfo_proc exists in the OpenBSD variant.])
AC_CHECK_MEMBERS([struct udphdr.uh_dport, struct udphdr.uh_sport], [], [],
[#define _BSD_SOURCE
+#define _DEFAULT_SOURCE
#if HAVE_STDINT_H
# include <stdint.h>
#endif
])
AC_CHECK_MEMBERS([struct udphdr.dest, struct udphdr.source], [], [],
[#define _BSD_SOURCE
+#define _DEFAULT_SOURCE
#if HAVE_STDINT_H
# include <stdint.h>
#endif
m4_divert_once([HELP_WITH], [
collectd additional packages:])
-AM_CONDITIONAL([BUILD_FREEBSD],[test "x$x$ac_system" = "xFreeBSD"])
-
-AM_CONDITIONAL([BUILD_AIX],[test "x$x$ac_system" = "xAIX"])
-
if test "x$ac_system" = "xAIX"
then
with_perfstat="yes"
AM_CONDITIONAL(BUILD_WITH_LIBAQUAERO5, test "x$with_libaquaero5" = "xyes")
# }}}
-# --with-libcredis {{{
-AC_ARG_WITH(libcredis, [AS_HELP_STRING([--with-libcredis@<:@=PREFIX@:>@], [Path to libcredis.])],
+# --with-libhiredis {{{
+AC_ARG_WITH(libhiredis, [AS_HELP_STRING([--with-libhiredis@<:@=PREFIX@:>@],
+ [Path to libhiredis.])],
[
if test "x$withval" = "xyes"
then
- with_libcredis="yes"
+ with_libhiredis="yes"
else if test "x$withval" = "xno"
then
- with_libcredis="no"
+ with_libhiredis="no"
else
- with_libcredis="yes"
- LIBCREDIS_CPPFLAGS="$LIBCREDIS_CPPFLAGS -I$withval/include"
- LIBCREDIS_LDFLAGS="$LIBCREDIS_LDFLAGS -L$withval/lib"
+ with_libhiredis="yes"
+ LIBHIREDIS_CPPFLAGS="$LIBHIREDIS_CPPFLAGS -I$withval/include"
+ LIBHIREDIS_LDFLAGS="$LIBHIREDIS_LDFLAGS -L$withval/lib"
fi; fi
],
-[with_libcredis="yes"])
+[with_libhiredis="yes"])
SAVE_CPPFLAGS="$CPPFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
-CPPFLAGS="$CPPFLAGS $LIBCREDIS_CPPFLAGS"
-LDFLAGS="$LDFLAGS $LIBCREDIS_LDFLAGS"
+CPPFLAGS="$CPPFLAGS $LIBHIREDIS_CPPFLAGS"
+LDFLAGS="$LDFLAGS $LIBHIREDIS_LDFLAGS"
-if test "x$with_libcredis" = "xyes"
+if test "x$with_libhiredis" = "xyes"
then
- if test "x$LIBCREDIS_CPPFLAGS" != "x"
+ if test "x$LIBHIREDIS_CPPFLAGS" != "x"
then
- AC_MSG_NOTICE([libcredis CPPFLAGS: $LIBCREDIS_CPPFLAGS])
+ AC_MSG_NOTICE([libhiredis CPPFLAGS: $LIBHIREDIS_CPPFLAGS])
fi
- AC_CHECK_HEADERS(credis.h,
- [with_libcredis="yes"],
- [with_libcredis="no (credis.h not found)"])
+ AC_CHECK_HEADERS(hiredis/hiredis.h,
+ [with_libhiredis="yes"],
+ [with_libhiredis="no (hiredis.h not found)"])
fi
-if test "x$with_libcredis" = "xyes"
+if test "x$with_libhiredis" = "xyes"
then
- if test "x$LIBCREDIS_LDFLAGS" != "x"
+ if test "x$LIBHIREDIS_LDFLAGS" != "x"
then
- AC_MSG_NOTICE([libcredis LDFLAGS: $LIBCREDIS_LDFLAGS])
+ AC_MSG_NOTICE([libhiredis LDFLAGS: $LIBHIREDIS_LDFLAGS])
fi
- AC_CHECK_LIB(credis, credis_info,
- [with_libcredis="yes"],
- [with_libcredis="no (symbol 'credis_info' not found)"])
+ AC_CHECK_LIB(hiredis, redisCommand,
+ [with_libhiredis="yes"],
+ [with_libhiredis="no (symbol 'redisCommand' not found)"])
fi
CPPFLAGS="$SAVE_CPPFLAGS"
LDFLAGS="$SAVE_LDFLAGS"
-if test "x$with_libcredis" = "xyes"
+if test "x$with_libhiredis" = "xyes"
then
- BUILD_WITH_LIBCREDIS_CPPFLAGS="$LIBCREDIS_CPPFLAGS"
- BUILD_WITH_LIBCREDIS_LDFLAGS="$LIBCREDIS_LDFLAGS"
- AC_SUBST(BUILD_WITH_LIBCREDIS_CPPFLAGS)
- AC_SUBST(BUILD_WITH_LIBCREDIS_LDFLAGS)
+ BUILD_WITH_LIBHIREDIS_CPPFLAGS="$LIBHIREDIS_CPPFLAGS"
+ BUILD_WITH_LIBHIREDIS_LDFLAGS="$LIBHIREDIS_LDFLAGS"
+ AC_SUBST(BUILD_WITH_LIBHIREDIS_CPPFLAGS)
+ AC_SUBST(BUILD_WITH_LIBHIREDIS_LDFLAGS)
fi
-AM_CONDITIONAL(BUILD_WITH_LIBCREDIS, test "x$with_libcredis" = "xyes")
+AM_CONDITIONAL(BUILD_WITH_LIBHIREDIS, test "x$with_libhiredis" = "xyes")
# }}}
# --with-libcurl {{{
[with_libcurl="yes"],
[with_libcurl="no (symbol 'curl_easy_init' not found)"],
[$with_curl_libs])
+ AC_CHECK_DECL(CURLOPT_USERNAME,
+ [have_curlopt_username="yes"],
+ [have_curlopt_username="no"],
+ [[#include <curl/curl.h>]])
fi
fi
if test "x$with_libcurl" = "xyes"
BUILD_WITH_LIBCURL_LIBS="$with_curl_libs"
AC_SUBST(BUILD_WITH_LIBCURL_CFLAGS)
AC_SUBST(BUILD_WITH_LIBCURL_LIBS)
+
+ if test "x$have_curlopt_username" = "xyes"
+ then
+ AC_DEFINE(HAVE_CURLOPT_USERNAME, 1, [Define if libcurl supports CURLOPT_USERNAME option.])
+ fi
fi
AM_CONDITIONAL(BUILD_WITH_LIBCURL, test "x$with_libcurl" = "xyes")
# }}}
# --with-libiptc {{{
AC_ARG_WITH(libiptc, [AS_HELP_STRING([--with-libiptc@<:@=PREFIX@:>@], [Path to libiptc.])],
[
- if test "x$withval" = "xshipped"
- then
- with_libiptc="own"
- else if test "x$withval" = "xyes"
+ if test "x$withval" = "xyes"
then
with_libiptc="pkgconfig"
else if test "x$withval" = "xno"
with_libiptc="yes"
with_libiptc_cflags="-I$withval/include"
with_libiptc_libs="-L$withval/lib"
- fi; fi; fi
+ fi; fi
],
[
if test "x$ac_system" = "xLinux"
CPPFLAGS="$SAVE_CPPFLAGS"
-if test "x$with_libiptc" = "xown"
-then
- with_libiptc_cflags=""
- with_libiptc_libs=""
-fi
-if test "x$with_libiptc" = "xown"
-then
- AC_CHECK_HEADERS(linux/netfilter_ipv4/ip_tables.h linux/netfilter_ipv6/ip6_tables.h linux/netfilter/x_tables.h, [],
- [
- with_libiptc="no (Linux iptables headers not found)"
- ],
- [
-#include "$srcdir/src/owniptc/ipt_kernel_headers.h"
- ])
-fi
-AM_CONDITIONAL(BUILD_WITH_OWN_LIBIPTC, test "x$with_libiptc" = "xown")
-if test "x$with_libiptc" = "xown"
-then
- AC_DEFINE(OWN_LIBIPTC, 1, [Define to 1 if we use the shipped iptc library.])
- with_libiptc="yes"
-fi
-
AM_CONDITIONAL(BUILD_WITH_LIBIPTC, test "x$with_libiptc" = "xyes")
if test "x$with_libiptc" = "xyes"
then
AM_CONDITIONAL(BUILD_WITH_JAVA, test "x$with_java" = "xyes")
# }}}
+# --with-libldap {{{
+AC_ARG_WITH(libldap, [AS_HELP_STRING([--with-libldap@<:@=PREFIX@:>@], [Path to libldap.])],
+[
+ if test "x$withval" = "xyes"
+ then
+ with_libldap="yes"
+ else if test "x$withval" = "xno"
+ then
+ with_libldap="no"
+ else
+ with_libldap="yes"
+ LIBLDAP_CPPFLAGS="$LIBLDAP_CPPFLAGS -I$withval/include"
+ LIBLDAP_LDFLAGS="$LIBLDAP_LDFLAGS -L$withval/lib"
+ fi; fi
+],
+[with_libldap="yes"])
+
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+CPPFLAGS="$CPPFLAGS $LIBLDAP_CPPFLAGS"
+LDFLAGS="$LDFLAGS $LIBLDAP_LDFLAGS"
+
+if test "x$with_libldap" = "xyes"
+then
+ if test "x$LIBLDAP_CPPFLAGS" != "x"
+ then
+ AC_MSG_NOTICE([libldap CPPFLAGS: $LIBLDAP_CPPFLAGS])
+ fi
+ AC_CHECK_HEADERS(ldap.h,
+ [with_libldap="yes"],
+ [with_libldap="no ('ldap.h' not found)"])
+fi
+if test "x$with_libldap" = "xyes"
+then
+ if test "x$LIBLDAP_LDFLAGS" != "x"
+ then
+ AC_MSG_NOTICE([libldap LDFLAGS: $LIBLDAP_LDFLAGS])
+ fi
+ AC_CHECK_LIB(ldap, ldap_initialize,
+ [with_libldap="yes"],
+ [with_libldap="no (symbol 'ldap_initialize' not found)"])
+
+fi
+
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+
+if test "x$with_libldap" = "xyes"
+then
+ BUILD_WITH_LIBLDAP_CPPFLAGS="$LIBLDAP_CPPFLAGS"
+ BUILD_WITH_LIBLDAP_LDFLAGS="$LIBLDAP_LDFLAGS"
+ AC_SUBST(BUILD_WITH_LIBLDAP_CPPFLAGS)
+ AC_SUBST(BUILD_WITH_LIBLDAP_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBLDAP, test "x$with_libldap" = "xyes")
+# }}}
+
# --with-liblvm2app {{{
with_liblvm2app_cppflags=""
with_liblvm2app_ldflags=""
CPPFLAGS="$CPPFLAGS $with_liblvm2app_cppflags"
LDFLAGS="$LDFLAGS $with_liblvm2app_ldflags"
- AC_CHECK_LIB(lvm2app, lvm_init, [with_liblvm2app="yes"], [with_liblvm2app="no (Symbol 'lvm_init' not found)"])
+ AC_CHECK_LIB(lvm2app, lvm_lv_get_property, [with_liblvm2app="yes"], [with_liblvm2app="no (Symbol 'lvm_lv_get_property' not found)"])
CPPFLAGS="$SAVE_CPPFLAGS"
LDFLAGS="$SAVE_LDFLAGS"
fi
if test "x$with_libmnl" = "xyes"
then
+ AC_CHECK_MEMBERS([struct rtnl_link_stats64.tx_window_errors],
+ [AC_DEFINE(HAVE_RTNL_LINK_STATS64, 1, [Define if struct rtnl_link_stats64 exists and is usable.])],
+ [],
+ [
+ #include <linux/if_link.h>
+ ])
+fi
+if test "x$with_libmnl" = "xyes"
+then
AC_CHECK_LIB(mnl, mnl_nlmsg_get_payload,
[with_libmnl="yes"],
[with_libmnl="no (symbol 'mnl_nlmsg_get_payload' not found)"],
else
SAVE_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $with_snmp_cflags"
-
+
AC_CHECK_HEADERS(net-snmp/net-snmp-config.h, [], [with_libnetsnmp="no (net-snmp/net-snmp-config.h not found)"])
CPPFLAGS="$SAVE_CPPFLAGS"
then
SAVE_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$with_libowcapi_cppflags"
-
+
AC_CHECK_HEADERS(owcapi.h, [with_libowcapi="yes"], [with_libowcapi="no (owcapi.h not found)"])
CPPFLAGS="$SAVE_CPPFLAGS"
SAVE_CPPFLAGS="$CPPFLAGS"
LDFLAGS="$with_libowcapi_libs"
CPPFLAGS="$with_libowcapi_cppflags"
-
+
AC_CHECK_LIB(owcapi, OW_get, [with_libowcapi="yes"], [with_libowcapi="no (libowcapi not found)"])
LDFLAGS="$SAVE_LDFLAGS"
fi
# }}}
+# --with-librdkafka {{{
+AC_ARG_WITH(librdkafka, [AS_HELP_STRING([--with-librdkafka@<:@=PREFIX@:>@], [Path to librdkafka.])],
+[
+ if test "x$withval" = "xno" && test "x$withval" != "xyes"
+ then
+ with_librdkafka_cppflags="-I$withval/include"
+ with_librdkafka_ldflags="-L$withval/lib"
+ with_librdkafka="yes"
+ else
+ with_librdkafka="$withval"
+ fi
+],
+[
+ with_librdkafka="yes"
+])
+SAVE_CPPFLAGS="$CPPFLAGS"
+SAVE_LDFLAGS="$LDFLAGS"
+
+if test "x$with_librdkafka" = "xyes"
+then
+ AC_CHECK_HEADERS(librdkafka/rdkafka.h, [with_librdkafka="yes"], [with_librdkafka="no (librdkafka/rdkafka.h not found)"])
+fi
+
+if test "x$with_librdkafka" = "xyes"
+then
+ AC_CHECK_LIB(rdkafka, rd_kafka_new, [with_librdkafka="yes"], [with_librdkafka="no (Symbol 'rd_kafka_new' not found)"])
+ AC_CHECK_LIB(rdkafka, rd_kafka_conf_set_log_cb, [with_librdkafka_log_cb="yes"], [with_librdkafka_log_cb="no"])
+ AC_CHECK_LIB(rdkafka, rd_kafka_conf_set_logger, [with_librdkafka_logger="yes"], [with_librdkafka_logger="no"])
+fi
+if test "x$with_librdkafka" = "xyes"
+then
+ BUILD_WITH_LIBRDKAFKA_CPPFLAGS="$with_librdkafka_cppflags"
+ BUILD_WITH_LIBRDKAFKA_LDFLAGS="$with_librdkafka_ldflags"
+ BUILD_WITH_LIBRDKAFKA_LIBS="-lrdkafka"
+ AC_SUBST(BUILD_WITH_LIBRDKAFKA_CPPFLAGS)
+ AC_SUBST(BUILD_WITH_LIBRDKAFKA_LDFLAGS)
+ AC_SUBST(BUILD_WITH_LIBRDKAFKA_LIBS)
+ AC_DEFINE(HAVE_LIBRDKAFKA, 1, [Define if librdkafka is present and usable.])
+ if test "x$with_librdkafka_log_cb" = "xyes"
+ then
+ AC_DEFINE(HAVE_LIBRDKAFKA_LOG_CB, 1, [Define if librdkafka log facility is present and usable.])
+ fi
+ if test "x$with_librdkafka_logger" = "xyes"
+ then
+ AC_DEFINE(HAVE_LIBRDKAFKA_LOGGER, 1, [Define if librdkafka log facility is present and usable.])
+ fi
+fi
+CPPFLAGS="$SAVE_CPPFLAGS"
+LDFLAGS="$SAVE_LDFLAGS"
+AM_CONDITIONAL(BUILD_WITH_LIBRDKAFKA, test "x$with_librdkafka" = "xyes")
+
+# }}}
+
# --with-librouteros {{{
AC_ARG_WITH(librouteros, [AS_HELP_STRING([--with-librouteros@<:@=PREFIX@:>@], [Path to librouteros.])],
[
LDFLAGS="$SAVE_LDFLAGS"
fi
+if test "x$with_libstatgrab" = "xyes"
+then
+ SAVE_CFLAGS="$CFLAGS"
+ SAVE_LIBS="$LIBS"
+
+ CFLAGS="$CFLAGS $with_libstatgrab_cflags"
+ LDFLAGS="$LDFLAGS $with_libstatgrab_ldflags"
+ LIBS="-lstatgrab $LIBS"
+
+ AC_CACHE_CHECK([if libstatgrab >= 0.90],
+ [c_cv_have_libstatgrab_0_90],
+ AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[[
+#include <stdio.h>
+#include <statgrab.h>
+]]],
+[[[
+ if (sg_init()) return 0;
+]]]
+ )],
+ [c_cv_have_libstatgrab_0_90="no"],
+ [c_cv_have_libstatgrab_0_90="yes"]
+ )
+ )
+
+ CFLAGS="$SAVE_CFLAGS"
+ LDFLAGS="$SAVE_LDFLAGS"
+ LIBS="$SAVE_LIBS"
+fi
+
AM_CONDITIONAL(BUILD_WITH_LIBSTATGRAB, test "x$with_libstatgrab" = "xyes")
if test "x$with_libstatgrab" = "xyes"
then
BUILD_WITH_LIBSTATGRAB_LDFLAGS="$with_libstatgrab_ldflags"
AC_SUBST(BUILD_WITH_LIBSTATGRAB_CFLAGS)
AC_SUBST(BUILD_WITH_LIBSTATGRAB_LDFLAGS)
+ if test "x$c_cv_have_libstatgrab_0_90" = "xyes"
+ then
+ AC_DEFINE(HAVE_LIBSTATGRAB_0_90, 1, [Define to 1 if libstatgrab version >= 0.90])
+ fi
fi
# }}}
LDFLAGS="$SAVE_LDFLAGS"
if test "x$with_libtokyotyrant" = "xyes"
-then
+then
BUILD_WITH_LIBTOKYOTYRANT_CPPFLAGS="$with_libtokyotyrant_cppflags"
BUILD_WITH_LIBTOKYOTYRANT_LDFLAGS="$with_libtokyotyrant_ldflags"
BUILD_WITH_LIBTOKYOTYRANT_LIBS="$with_libtokyotyrant_libs"
AM_CONDITIONAL(BUILD_WITH_LIBTOKYOTYRANT, test "x$with_libtokyotyrant" = "xyes")
# }}}
+# --with-libudev {{{
+with_libudev_cflags=""
+with_libudev_ldflags=""
+AC_ARG_WITH(libudev, [AS_HELP_STRING([--with-libudev@<:@=PREFIX@:>@], [Path to libudev.])],
+[
+ if test "x$withval" = "xno"
+ then
+ with_libudev="no"
+ else
+ with_libudev="yes"
+ if test "x$withval" != "xyes"
+ then
+ with_libudev_cflags="-I$withval/include"
+ with_libudev_ldflags="-L$withval/lib"
+ with_libudev="yes"
+ fi
+ fi
+],
+[
+ if test "x$ac_system" = "xLinux"
+ then
+ with_libudev="yes"
+ else
+ with_libudev="no (Linux only library)"
+ fi
+])
+if test "x$with_libudev" = "xyes"
+then
+ SAVE_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $with_libudev_cflags"
+
+ AC_CHECK_HEADERS(libudev.h, [], [with_libudev="no (libudev.h not found)"])
+
+ CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libudev" = "xyes"
+then
+ SAVE_CPPFLAGS="$CPPFLAGS"
+ SAVE_LDFLAGS="$LDFLAGS"
+ CPPFLAGS="$CPPFLAGS $with_libudev_cflags"
+ LDFLAGS="$LDFLAGS $with_libudev_ldflags"
+
+ AC_CHECK_LIB(udev, udev_new,
+ [
+ AC_DEFINE(HAVE_LIBUDEV, 1, [Define to 1 if you have the udev library (-ludev).])
+ ],
+ [with_libudev="no (libudev not found)"])
+
+ CPPFLAGS="$SAVE_CPPFLAGS"
+ LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libudev" = "xyes"
+then
+ BUILD_WITH_LIBUDEV_CFLAGS="$with_libudev_cflags"
+ BUILD_WITH_LIBUDEV_LDFLAGS="$with_libudev_ldflags"
+ AC_SUBST(BUILD_WITH_LIBUDEV_CFLAGS)
+ AC_SUBST(BUILD_WITH_LIBUDEV_LDFLAGS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBUDEV, test "x$with_libudev" = "xyes")
+# }}}
+
# --with-libupsclient {{{
with_libupsclient_config=""
with_libupsclient_cflags=""
if test "x$with_libvarnish" = "xyes"
then
SAVE_CPPFLAGS="$CPPFLAGS"
- CPPFLAGS="$CPPFLAGS $with_libvarnish_cflags"
- AC_CHECK_HEADERS(varnish/varnishapi.h, [], [with_libvarnish="no (varnish/varnishapi.h not found)"])
-
- CPPFLAGS="$SAVE_CPPFLAGS"
-fi
-if test "x$with_libvarnish" = "xyes"
-then
- SAVE_CPPFLAGS="$CPPFLAGS"
- #SAVE_LDFLAGS="$LDFLAGS"
CPPFLAGS="$CPPFLAGS $with_libvarnish_cflags"
- #LDFLAGS="$LDFLAGS $with_libvarnish_libs"
- AC_CHECK_HEADERS(varnish/vsc.h,
- [AC_DEFINE([HAVE_VARNISH_V3], [1], [Varnish 3 API support])],
- [AC_DEFINE([HAVE_VARNISH_V2], [1], [Varnish 2 API support])])
+ AC_CHECK_HEADERS(varnish/vapi/vsc.h,
+ [AC_DEFINE([HAVE_VARNISH_V4], [1], [Varnish 4 API support])],
+ [AC_CHECK_HEADERS(varnish/vsc.h,
+ [AC_DEFINE([HAVE_VARNISH_V3], [1], [Varnish 3 API support])],
+ [AC_CHECK_HEADERS(varnish/varnishapi.h,
+ [AC_DEFINE([HAVE_VARNISH_V2], [1], [Varnish 2 API support])],
+ [with_libvarnish="no (found none of the varnish header files)"])])])
CPPFLAGS="$SAVE_CPPFLAGS"
- #LDFLAGS="$SAVE_LDFLAGS"
fi
if test "x$with_libvarnish" = "xyes"
then
fi
# }}}
+# --with-libatasmart {{{
+with_libatasmart_cppflags=""
+with_libatasmart_ldflags=""
+AC_ARG_WITH(libatasmart, [AS_HELP_STRING([--with-libatasmart@<:@=PREFIX@:>@], [Path to libatasmart.])],
+[
+ if test "x$withval" != "xno" && test "x$withval" != "xyes"
+ then
+ with_libatasmart_cppflags="-I$withval/include"
+ with_libatasmart_ldflags="-L$withval/lib"
+ with_libatasmart="yes"
+ else
+ with_libatasmart="$withval"
+ fi
+],
+[
+ if test "x$ac_system" = "xLinux"
+ then
+ with_libatasmart="yes"
+ else
+ with_libatasmart="no (Linux only library)"
+ fi
+])
+if test "x$with_libatasmart" = "xyes"
+then
+ SAVE_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $with_libatasmart_cppflags"
+
+ AC_CHECK_HEADERS(atasmart.h, [with_libatasmart="yes"], [with_libatasmart="no (atasmart.h not found)"])
+
+ CPPFLAGS="$SAVE_CPPFLAGS"
+fi
+if test "x$with_libatasmart" = "xyes"
+then
+ SAVE_CPPFLAGS="$CPPFLAGS"
+ SAVE_LDFLAGS="$LDFLAGS"
+ CPPFLAGS="$CPPFLAGS $with_libatasmart_cppflags"
+ LDFLAGS="$LDFLAGS $with_libatasmart_ldflags"
+
+ AC_CHECK_LIB(atasmart, sk_disk_open, [with_libatasmart="yes"], [with_libatasmart="no (Symbol 'sk_disk_open' not found)"])
+
+ CPPFLAGS="$SAVE_CPPFLAGS"
+ LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libatasmart" = "xyes"
+then
+ BUILD_WITH_LIBATASMART_CPPFLAGS="$with_libatasmart_cppflags"
+ BUILD_WITH_LIBATASMART_LDFLAGS="$with_libatasmart_ldflags"
+ BUILD_WITH_LIBATASMART_LIBS="-latasmart"
+ AC_SUBST(BUILD_WITH_LIBATASMART_CPPFLAGS)
+ AC_SUBST(BUILD_WITH_LIBATASMART_LDFLAGS)
+ AC_SUBST(BUILD_WITH_LIBATASMART_LIBS)
+ AC_DEFINE(HAVE_LIBATASMART, 1, [Define if libatasmart is present and usable.])
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBATASMART, test "x$with_libatasmart" = "xyes")
+# }}}
+
PKG_CHECK_MODULES([LIBNOTIFY], [libnotify],
[with_libnotify="yes"],
[if test "x$LIBNOTIFY_PKG_ERRORS" = "x"; then
dependency_error="no"
plugin_ascent="no"
+plugin_barometer="no"
plugin_battery="no"
plugin_bind="no"
+plugin_ceph="no"
plugin_cgroups="no"
plugin_conntrack="no"
plugin_contextswitch="no"
plugin_curl_xml="no"
plugin_df="no"
plugin_disk="no"
+plugin_drbd="no"
plugin_entropy="no"
plugin_ethstat="no"
plugin_fscache="no"
plugin_ipmi="no"
plugin_ipvs="no"
plugin_irq="no"
-plugin_libvirt="no"
plugin_load="no"
+plugin_log_logstash="no"
plugin_memory="no"
plugin_multimeter="no"
plugin_nfs="no"
plugin_tcpconns="no"
plugin_ted="no"
plugin_thermal="no"
-plugin_users="no"
plugin_uptime="no"
+plugin_users="no"
+plugin_virt="no"
plugin_vmem="no"
plugin_vserver="no"
plugin_wireless="no"
plugin_zfs_arc="no"
+plugin_zookeeper="no"
# Linux
if test "x$ac_system" = "xLinux"
plugin_cpu="yes"
plugin_cpufreq="yes"
plugin_disk="yes"
+ plugin_drbd="yes"
plugin_entropy="yes"
plugin_fscache="yes"
plugin_interface="yes"
plugin_vmem="yes"
plugin_vserver="yes"
plugin_wireless="yes"
+ plugin_zfs_arc="yes"
if test "x$have_linux_ip_vs_h" = "xyes" || test "x$have_net_ip_vs_h" = "xyes" || test "x$have_ip_vs_h" = "xyes"
then
plugin_tape="yes"
fi
+# libi2c-dev
+with_libi2c="no"
+if test "x$ac_system" = "xLinux"
+then
+AC_CHECK_DECL(i2c_smbus_read_i2c_block_data,
+ [with_libi2c="yes"],
+ [with_libi2c="no (symbol i2c_smbus_read_i2c_block_data not found - have you installed libi2c-dev ?)"],
+ [[#include <stdlib.h>
+ #include <linux/i2c-dev.h>]])
+fi
+
+if test "x$with_libi2c" = "xyes"
+then
+ plugin_barometer="yes"
+fi
+
+
# libstatgrab
if test "x$with_libstatgrab" = "xyes"
then
plugin_curl_xml="yes"
fi
+if test "x$with_libyajl" = "xyes"
+then
+ plugin_ceph="yes"
+fi
+
if test "x$have_processor_info" = "xyes"
then
plugin_cpu="yes"
plugin_interface="yes"
fi
-if test "x$with_libxml2" = "xyes" && test "x$with_libvirt" = "xyes"
+if test "x$have_getloadavg" = "xyes"
then
- plugin_libvirt="yes"
+ plugin_load="yes"
fi
-if test "x$have_getloadavg" = "xyes"
+if test "x$with_libyajl" = "xyes"
then
- plugin_load="yes"
+ plugin_log_logstash="yes"
fi
if test "x$c_cv_have_libperl$c_cv_have_perl_ithreads" = "xyesyes"
if test "x$have_termios_h" = "xyes"
then
- plugin_multimeter="yes"
+ if test "x$ac_system" != "xAIX"
+ then
+ plugin_multimeter="yes"
+ fi
plugin_ted="yes"
fi
plugin_processes="yes"
fi
+if test "x$with_kvm_getprocs" = "xyes" && test "x$have_struct_kinfo_proc_openbsd" = "xyes"
+then
+ plugin_processes="yes"
+fi
+
if test "x$with_kvm_getswapinfo" = "xyes"
then
plugin_swap="yes"
plugin_users="yes"
fi
+if test "x$with_libxml2" = "xyes" && test "x$with_libvirt" = "xyes"
+then
+ plugin_virt="yes"
+fi
+
+
m4_divert_once([HELP_ENABLE], [
collectd plugins:])
AC_PLUGIN([apple_sensors], [$with_libiokit], [Apple's hardware sensors])
AC_PLUGIN([aquaero], [$with_libaquaero5], [Aquaero's hardware sensors])
AC_PLUGIN([ascent], [$plugin_ascent], [AscentEmu player statistics])
+AC_PLUGIN([barometer], [$plugin_barometer], [Barometer sensor on I2C])
AC_PLUGIN([battery], [$plugin_battery], [Battery statistics])
AC_PLUGIN([bind], [$plugin_bind], [ISC Bind nameserver statistics])
+AC_PLUGIN([ceph], [$plugin_ceph], [Ceph daemon statistics])
AC_PLUGIN([conntrack], [$plugin_conntrack], [nf_conntrack statistics])
AC_PLUGIN([contextswitch], [$plugin_contextswitch], [context switch statistics])
AC_PLUGIN([cpufreq], [$plugin_cpufreq], [CPU frequency statistics])
AC_PLUGIN([dbi], [$with_libdbi], [General database statistics])
AC_PLUGIN([df], [$plugin_df], [Filesystem usage statistics])
AC_PLUGIN([disk], [$plugin_disk], [Disk usage statistics])
+AC_PLUGIN([drbd], [$plugin_drbd], [DRBD statistics])
AC_PLUGIN([dns], [$with_libpcap], [DNS traffic analysis])
AC_PLUGIN([email], [yes], [EMail statistics])
AC_PLUGIN([entropy], [$plugin_entropy], [Entropy statistics])
AC_PLUGIN([ipvs], [$plugin_ipvs], [IPVS connection statistics])
AC_PLUGIN([irq], [$plugin_irq], [IRQ statistics])
AC_PLUGIN([java], [$with_java], [Embed the Java Virtual Machine])
-AC_PLUGIN([libvirt], [$plugin_libvirt], [Virtual machine statistics])
AC_PLUGIN([load], [$plugin_load], [System load])
AC_PLUGIN([logfile], [yes], [File logging plugin])
+AC_PLUGIN([log_logstash], [$plugin_log_logstash], [Logstash json_event compatible logging])
AC_PLUGIN([lpar], [$with_perfstat], [AIX logical partitions statistics])
AC_PLUGIN([lvm], [$with_liblvm2app], [LVM statistics])
AC_PLUGIN([madwifi], [$have_linux_wireless_h], [Madwifi wireless statistics])
AC_PLUGIN([nut], [$with_libupsclient], [Network UPS tools statistics])
AC_PLUGIN([olsrd], [yes], [olsrd statistics])
AC_PLUGIN([onewire], [$with_libowcapi], [OneWire sensor statistics])
+AC_PLUGIN([openldap], [$with_libldap], [OpenLDAP statistics])
AC_PLUGIN([openvpn], [yes], [OpenVPN client statistics])
AC_PLUGIN([oracle], [$with_oracle], [Oracle plugin])
AC_PLUGIN([perl], [$plugin_perl], [Embed a Perl interpreter])
AC_PLUGIN([processes], [$plugin_processes], [Process statistics])
AC_PLUGIN([protocols], [$plugin_protocols], [Protocol (IP, TCP, ...) statistics])
AC_PLUGIN([python], [$with_python], [Embed a Python interpreter])
-AC_PLUGIN([redis], [$with_libcredis], [Redis plugin])
+AC_PLUGIN([redis], [$with_libhiredis], [Redis plugin])
AC_PLUGIN([routeros], [$with_librouteros], [RouterOS plugin])
AC_PLUGIN([rrdcached], [$librrd_rrdc_update], [RRDTool output plugin])
AC_PLUGIN([rrdtool], [$with_librrd], [RRDTool output plugin])
AC_PLUGIN([sensors], [$with_libsensors], [lm_sensors statistics])
AC_PLUGIN([serial], [$plugin_serial], [serial port traffic])
AC_PLUGIN([sigrok], [$with_libsigrok], [sigrok acquisition sources])
+AC_PLUGIN([smart], [$with_libatasmart], [SMART statistics])
AC_PLUGIN([snmp], [$with_libnetsnmp], [SNMP querying plugin])
AC_PLUGIN([statsd], [yes], [StatsD plugin])
AC_PLUGIN([swap], [$plugin_swap], [Swap usage statistics])
AC_PLUGIN([users], [$plugin_users], [User statistics])
AC_PLUGIN([uuid], [yes], [UUID as hostname plugin])
AC_PLUGIN([varnish], [$with_libvarnish], [Varnish cache statistics])
+AC_PLUGIN([virt], [$plugin_virt], [Virtual machine statistics])
AC_PLUGIN([vmem], [$plugin_vmem], [Virtual memory statistics])
AC_PLUGIN([vserver], [$plugin_vserver], [Linux VServer statistics])
AC_PLUGIN([wireless], [$plugin_wireless], [Wireless statistics])
AC_PLUGIN([write_graphite], [yes], [Graphite / Carbon output plugin])
AC_PLUGIN([write_http], [$with_libcurl], [HTTP output plugin])
+AC_PLUGIN([write_kafka], [$with_librdkafka], [Kafka output plugin])
+AC_PLUGIN([write_log], [yes], [Log output plugin])
AC_PLUGIN([write_mongodb], [$with_libmongoc], [MongoDB output plugin])
-AC_PLUGIN([write_redis], [$with_libcredis], [Redis output plugin])
+AC_PLUGIN([write_redis], [$with_libhiredis], [Redis output plugin])
AC_PLUGIN([write_riemann], [$have_protoc_c], [Riemann output plugin])
+AC_PLUGIN([write_tsdb], [yes], [TSDB output plugin])
AC_PLUGIN([xmms], [$with_libxmms], [XMMS statistics])
AC_PLUGIN([zfs_arc], [$plugin_zfs_arc], [ZFS ARC statistics])
+AC_PLUGIN([zookeeper], [yes], [Zookeeper statistics])
dnl Default configuration file
# Load either syslog or logfile
LOAD_PLUGIN_SYSLOG=""
LOAD_PLUGIN_LOGFILE=""
+LOAD_PLUGIN_LOG_LOGSTASH=""
AC_MSG_CHECKING([which default log plugin to load])
default_log_plugin="none"
else
LOAD_PLUGIN_LOGFILE="##"
fi
+
+if test "x$enable_log_logstash" = "xyes"
+then
+ LOAD_PLUGIN_LOG_LOGSTASH="#"
+else
+ LOAD_PLUGIN_LOG_LOGSTASH="##"
+fi
+
+
AC_MSG_RESULT([$default_log_plugin])
AC_SUBST(LOAD_PLUGIN_SYSLOG)
AC_SUBST(LOAD_PLUGIN_LOGFILE)
+AC_SUBST(LOAD_PLUGIN_LOG_LOGSTASH)
DEFAULT_LOG_LEVEL="info"
if test "x$enable_debug" = "xyes"
AC_CONFIG_FILES(src/libcollectdclient/collectd/lcc_features.h)
-AC_CONFIG_FILES([Makefile src/Makefile src/collectd.conf src/libcollectdclient/Makefile src/libcollectdclient/libcollectdclient.pc src/liboconfig/Makefile bindings/Makefile bindings/java/Makefile])
+AC_CONFIG_FILES([Makefile src/Makefile src/daemon/Makefile src/collectd.conf src/libcollectdclient/Makefile src/libcollectdclient/libcollectdclient.pc src/liboconfig/Makefile bindings/Makefile bindings/java/Makefile])
AC_OUTPUT
if test "x$with_librrd" = "xyes" \
Libraries:
intel mic . . . . . . $with_mic
libaquaero5 . . . . . $with_libaquaero5
- libcredis . . . . . . $with_libcredis
+ libatasmart . . . . . $with_libatasmart
libcurl . . . . . . . $with_libcurl
libdbi . . . . . . . $with_libdbi
- libhiredis . . . . . $with_libhiredis
libesmtp . . . . . . $with_libesmtp
libganglia . . . . . $with_libganglia
libgcrypt . . . . . . $with_libgcrypt
+ libhal . . . . . . . $with_libhal
++ libhiredis . . . . . $with_libhiredis
+ libi2c-dev . . . . . $with_libi2c
libiokit . . . . . . $with_libiokit
libiptc . . . . . . . $with_libiptc
libjvm . . . . . . . $with_java
libkstat . . . . . . $with_kstat
libkvm . . . . . . . $with_libkvm
+ libldap . . . . . . . $with_libldap
liblvm2app . . . . . $with_liblvm2app
libmemcached . . . . $with_libmemcached
libmnl . . . . . . . $with_libmnl
libmodbus . . . . . . $with_libmodbus
+ libmongoc . . . . . . $with_libmongoc
libmysql . . . . . . $with_libmysql
libnetapp . . . . . . $with_libnetapp
libnetsnmp . . . . . $with_libnetsnmp
liboconfig . . . . . $with_liboconfig
libopenipmi . . . . . $with_libopenipmipthread
liboping . . . . . . $with_liboping
+ libowcapi . . . . . . $with_libowcapi
libpcap . . . . . . . $with_libpcap
libperfstat . . . . . $with_perfstat
libperl . . . . . . . $with_libperl
libpq . . . . . . . . $with_libpq
libpthread . . . . . $with_libpthread
librabbitmq . . . . . $with_librabbitmq
+ librdkafka . . . . . $with_librdkafka
librouteros . . . . . $with_librouteros
librrd . . . . . . . $with_librrd
libsensors . . . . . $with_libsensors
libsigrok . . . . . $with_libsigrok
libstatgrab . . . . . $with_libstatgrab
libtokyotyrant . . . $with_libtokyotyrant
+ libudev . . . . . . . $with_libudev
libupsclient . . . . $with_libupsclient
libvarnish . . . . . $with_libvarnish
libvirt . . . . . . . $with_libvirt
libxml2 . . . . . . . $with_libxml2
libxmms . . . . . . . $with_libxmms
libyajl . . . . . . . $with_libyajl
- libevent . . . . . . $with_libevent
- protobuf-c . . . . . $have_protoc_c
oracle . . . . . . . $with_oracle
+ protobuf-c . . . . . $have_protoc_c
python . . . . . . . $with_python
Features:
amqp . . . . . . . $enable_amqp
apache . . . . . . . $enable_apache
apcups . . . . . . . $enable_apcups
-- aquaero . . . . . . . $enable_aquaero
apple_sensors . . . . $enable_apple_sensors
++ aquaero . . . . . . . $enable_aquaero
ascent . . . . . . . $enable_ascent
+ barometer . . . . . . $enable_barometer
battery . . . . . . . $enable_battery
bind . . . . . . . . $enable_bind
+ ceph . . . . . . . . $enable_ceph
++ cgroups . . . . . . . $enable_cgroups
conntrack . . . . . . $enable_conntrack
contextswitch . . . . $enable_contextswitch
-- cgroups . . . . . . . $enable_cgroups
cpu . . . . . . . . . $enable_cpu
cpufreq . . . . . . . $enable_cpufreq
csv . . . . . . . . . $enable_csv
df . . . . . . . . . $enable_df
disk . . . . . . . . $enable_disk
dns . . . . . . . . . $enable_dns
+ drbd . . . . . . . . $enable_drbd
email . . . . . . . . $enable_email
entropy . . . . . . . $enable_entropy
ethstat . . . . . . . $enable_ethstat
ipvs . . . . . . . . $enable_ipvs
irq . . . . . . . . . $enable_irq
java . . . . . . . . $enable_java
- libvirt . . . . . . . $enable_libvirt
load . . . . . . . . $enable_load
logfile . . . . . . . $enable_logfile
- lpar . . . . . . . . $enable_lpar
+ log_logstash . . . . $enable_log_logstash
+ lpar . . . . . . . . $enable_lpar
lvm . . . . . . . . . $enable_lvm
madwifi . . . . . . . $enable_madwifi
match_empty_counter . $enable_match_empty_counter
nut . . . . . . . . . $enable_nut
olsrd . . . . . . . . $enable_olsrd
onewire . . . . . . . $enable_onewire
+ openldap . . . . . . $enable_openldap
openvpn . . . . . . . $enable_openvpn
oracle . . . . . . . $enable_oracle
perl . . . . . . . . $enable_perl
sensors . . . . . . . $enable_sensors
serial . . . . . . . $enable_serial
sigrok . . . . . . . $enable_sigrok
+ smart . . . . . . . . $enable_smart
snmp . . . . . . . . $enable_snmp
statsd . . . . . . . $enable_statsd
swap . . . . . . . . $enable_swap
syslog . . . . . . . $enable_syslog
table . . . . . . . . $enable_table
-- tail . . . . . . . . $enable_tail
tail_csv . . . . . . $enable_tail_csv
++ tail . . . . . . . . $enable_tail
tape . . . . . . . . $enable_tape
target_notification . $enable_target_notification
target_replace . . . $enable_target_replace
users . . . . . . . . $enable_users
uuid . . . . . . . . $enable_uuid
varnish . . . . . . . $enable_varnish
+ virt . . . . . . . . $enable_virt
vmem . . . . . . . . $enable_vmem
vserver . . . . . . . $enable_vserver
wireless . . . . . . $enable_wireless
write_graphite . . . $enable_write_graphite
write_http . . . . . $enable_write_http
+ write_kafka . . . . . $enable_write_kafka
+ write_log . . . . . . $enable_write_log
write_mongodb . . . . $enable_write_mongodb
write_redis . . . . . $enable_write_redis
write_riemann . . . . $enable_write_riemann
+ write_tsdb . . . . . $enable_write_tsdb
xmms . . . . . . . . $enable_xmms
zfs_arc . . . . . . . $enable_zfs_arc
+ zookeeper . . . . . . $enable_zookeeper
EOF
--- /dev/null
- int typename_len;
+/**
+ * collectd - src/plugin.c
+ * Copyright (C) 2005-2014 Florian octo Forster
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Florian octo Forster <octo at collectd.org>
+ * Sebastian Harl <sh at tokkee.org>
+ **/
+
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+#include "configfile.h"
+#include "filter_chain.h"
+#include "utils_avltree.h"
+#include "utils_cache.h"
+#include "utils_complain.h"
+#include "utils_llist.h"
+#include "utils_heap.h"
+#include "utils_time.h"
+#include "utils_random.h"
+
+#include <ltdl.h>
+
+/*
+ * Private structures
+ */
+struct callback_func_s
+{
+ void *cf_callback;
+ user_data_t cf_udata;
+ plugin_ctx_t cf_ctx;
+};
+typedef struct callback_func_s callback_func_t;
+
+#define RF_SIMPLE 0
+#define RF_COMPLEX 1
+#define RF_REMOVE 65535
+struct read_func_s
+{
+ /* `read_func_t' "inherits" from `callback_func_t'.
+ * The `rf_super' member MUST be the first one in this structure! */
+#define rf_callback rf_super.cf_callback
+#define rf_udata rf_super.cf_udata
+#define rf_ctx rf_super.cf_ctx
+ callback_func_t rf_super;
+ char rf_group[DATA_MAX_NAME_LEN];
+ char *rf_name;
+ int rf_type;
+ cdtime_t rf_interval;
+ cdtime_t rf_effective_interval;
+ cdtime_t rf_next_read;
+};
+typedef struct read_func_s read_func_t;
+
+struct write_queue_s;
+typedef struct write_queue_s write_queue_t;
+struct write_queue_s
+{
+ value_list_t *vl;
+ plugin_ctx_t ctx;
+ write_queue_t *next;
+};
+
+/*
+ * Private variables
+ */
+static c_avl_tree_t *plugins_loaded = NULL;
+
+static llist_t *list_init;
+static llist_t *list_write;
+static llist_t *list_flush;
+static llist_t *list_missing;
+static llist_t *list_shutdown;
+static llist_t *list_log;
+static llist_t *list_notification;
+
+static fc_chain_t *pre_cache_chain = NULL;
+static fc_chain_t *post_cache_chain = NULL;
+
+static c_avl_tree_t *data_sets;
+
+static char *plugindir = NULL;
+
+#ifndef DEFAULT_MAX_READ_INTERVAL
+# define DEFAULT_MAX_READ_INTERVAL TIME_T_TO_CDTIME_T (86400)
+#endif
+static c_heap_t *read_heap = NULL;
+static llist_t *read_list;
+static int read_loop = 1;
+static pthread_mutex_t read_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t read_cond = PTHREAD_COND_INITIALIZER;
+static pthread_t *read_threads = NULL;
+static int read_threads_num = 0;
+static cdtime_t max_read_interval = DEFAULT_MAX_READ_INTERVAL;
+
+static write_queue_t *write_queue_head;
+static write_queue_t *write_queue_tail;
+static long write_queue_length = 0;
+static _Bool write_loop = 1;
+static pthread_mutex_t write_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t write_cond = PTHREAD_COND_INITIALIZER;
+static pthread_t *write_threads = NULL;
+static size_t write_threads_num = 0;
+
+static pthread_key_t plugin_ctx_key;
+static _Bool plugin_ctx_key_initialized = 0;
+
+static long write_limit_high = 0;
+static long write_limit_low = 0;
+
+static derive_t stats_values_dropped = 0;
+static _Bool record_statistics = 0;
+
+/*
+ * Static functions
+ */
+static int plugin_dispatch_values_internal (value_list_t *vl);
+
+static const char *plugin_get_dir (void)
+{
+ if (plugindir == NULL)
+ return (PLUGINDIR);
+ else
+ return (plugindir);
+}
+
+static void plugin_update_internal_statistics (void) { /* {{{ */
+ derive_t copy_write_queue_length;
+ value_list_t vl = VALUE_LIST_INIT;
+ value_t values[2];
+
+ copy_write_queue_length = write_queue_length;
+
+ /* Initialize `vl' */
+ vl.values = values;
+ vl.values_len = 2;
+ vl.time = 0;
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "collectd", sizeof (vl.plugin));
+
+ vl.type_instance[0] = 0;
+ vl.values_len = 1;
+
+ /* Write queue */
+ sstrncpy (vl.plugin_instance, "write_queue",
+ sizeof (vl.plugin_instance));
+
+ /* Write queue : queue length */
+ vl.values[0].gauge = (gauge_t) copy_write_queue_length;
+ sstrncpy (vl.type, "queue_length", sizeof (vl.type));
+ vl.type_instance[0] = 0;
+ plugin_dispatch_values (&vl);
+
+ /* Write queue : Values dropped (queue length > low limit) */
+ vl.values[0].derive = (derive_t) stats_values_dropped;
+ sstrncpy (vl.type, "derive", sizeof (vl.type));
+ sstrncpy (vl.type_instance, "dropped", sizeof (vl.type_instance));
+ plugin_dispatch_values (&vl);
+
+ /* Cache */
+ sstrncpy (vl.plugin_instance, "cache",
+ sizeof (vl.plugin_instance));
+
+ /* Cache : Nb entry in cache tree */
+ vl.values[0].gauge = (gauge_t) uc_get_size();
+ sstrncpy (vl.type, "cache_size", sizeof (vl.type));
+ vl.type_instance[0] = 0;
+ plugin_dispatch_values (&vl);
+
+ return;
+} /* }}} void plugin_update_internal_statistics */
+
+static void destroy_callback (callback_func_t *cf) /* {{{ */
+{
+ if (cf == NULL)
+ return;
+
+ if ((cf->cf_udata.data != NULL) && (cf->cf_udata.free_func != NULL))
+ {
+ cf->cf_udata.free_func (cf->cf_udata.data);
+ cf->cf_udata.data = NULL;
+ cf->cf_udata.free_func = NULL;
+ }
+ sfree (cf);
+} /* }}} void destroy_callback */
+
+static void destroy_all_callbacks (llist_t **list) /* {{{ */
+{
+ llentry_t *le;
+
+ if (*list == NULL)
+ return;
+
+ le = llist_head (*list);
+ while (le != NULL)
+ {
+ llentry_t *le_next;
+
+ le_next = le->next;
+
+ sfree (le->key);
+ destroy_callback (le->value);
+ le->value = NULL;
+
+ le = le_next;
+ }
+
+ llist_destroy (*list);
+ *list = NULL;
+} /* }}} void destroy_all_callbacks */
+
+static void destroy_read_heap (void) /* {{{ */
+{
+ if (read_heap == NULL)
+ return;
+
+ while (42)
+ {
+ callback_func_t *cf;
+
+ cf = c_heap_get_root (read_heap);
+ if (cf == NULL)
+ break;
+
+ destroy_callback (cf);
+ }
+
+ c_heap_destroy (read_heap);
+ read_heap = NULL;
+} /* }}} void destroy_read_heap */
+
+static int register_callback (llist_t **list, /* {{{ */
+ const char *name, callback_func_t *cf)
+{
+ llentry_t *le;
+ char *key;
+
+ if (*list == NULL)
+ {
+ *list = llist_create ();
+ if (*list == NULL)
+ {
+ ERROR ("plugin: register_callback: "
+ "llist_create failed.");
+ destroy_callback (cf);
+ return (-1);
+ }
+ }
+
+ key = strdup (name);
+ if (key == NULL)
+ {
+ ERROR ("plugin: register_callback: strdup failed.");
+ destroy_callback (cf);
+ return (-1);
+ }
+
+ le = llist_search (*list, name);
+ if (le == NULL)
+ {
+ le = llentry_create (key, cf);
+ if (le == NULL)
+ {
+ ERROR ("plugin: register_callback: "
+ "llentry_create failed.");
+ free (key);
+ destroy_callback (cf);
+ return (-1);
+ }
+
+ llist_append (*list, le);
+ }
+ else
+ {
+ callback_func_t *old_cf;
+
+ old_cf = le->value;
+ le->value = cf;
+
+ WARNING ("plugin: register_callback: "
+ "a callback named `%s' already exists - "
+ "overwriting the old entry!", name);
+
+ destroy_callback (old_cf);
+ sfree (key);
+ }
+
+ return (0);
+} /* }}} int register_callback */
+
+static int create_register_callback (llist_t **list, /* {{{ */
+ const char *name, void *callback, user_data_t *ud)
+{
+ callback_func_t *cf;
+
+ cf = (callback_func_t *) malloc (sizeof (*cf));
+ if (cf == NULL)
+ {
+ ERROR ("plugin: create_register_callback: malloc failed.");
+ return (-1);
+ }
+ memset (cf, 0, sizeof (*cf));
+
+ cf->cf_callback = callback;
+ if (ud == NULL)
+ {
+ cf->cf_udata.data = NULL;
+ cf->cf_udata.free_func = NULL;
+ }
+ else
+ {
+ cf->cf_udata = *ud;
+ }
+
+ cf->cf_ctx = plugin_get_ctx ();
+
+ return (register_callback (list, name, cf));
+} /* }}} int create_register_callback */
+
+static int plugin_unregister (llist_t *list, const char *name) /* {{{ */
+{
+ llentry_t *e;
+
+ if (list == NULL)
+ return (-1);
+
+ e = llist_search (list, name);
+ if (e == NULL)
+ return (-1);
+
+ llist_remove (list, e);
+
+ sfree (e->key);
+ destroy_callback (e->value);
+
+ llentry_destroy (e);
+
+ return (0);
+} /* }}} int plugin_unregister */
+
+/*
+ * (Try to) load the shared object `file'. Won't complain if it isn't a shared
+ * object, but it will bitch about a shared object not having a
+ * ``module_register'' symbol..
+ */
+static int plugin_load_file (char *file, uint32_t flags)
+{
+ lt_dlhandle dlh;
+ void (*reg_handle) (void);
+
+ lt_dlinit ();
+ lt_dlerror (); /* clear errors */
+
+#if LIBTOOL_VERSION == 2
+ if (flags & PLUGIN_FLAGS_GLOBAL) {
+ lt_dladvise advise;
+ lt_dladvise_init(&advise);
+ lt_dladvise_global(&advise);
+ dlh = lt_dlopenadvise(file, advise);
+ lt_dladvise_destroy(&advise);
+ } else {
+ dlh = lt_dlopen (file);
+ }
+#else /* if LIBTOOL_VERSION == 1 */
+ if (flags & PLUGIN_FLAGS_GLOBAL)
+ WARNING ("plugin_load_file: The global flag is not supported, "
+ "libtool 2 is required for this.");
+ dlh = lt_dlopen (file);
+#endif
+
+ if (dlh == NULL)
+ {
+ char errbuf[1024] = "";
+
+ ssnprintf (errbuf, sizeof (errbuf),
+ "lt_dlopen (\"%s\") failed: %s. "
+ "The most common cause for this problem is "
+ "missing dependencies. Use ldd(1) to check "
+ "the dependencies of the plugin "
+ "/ shared object.",
+ file, lt_dlerror ());
+
+ ERROR ("%s", errbuf);
+ /* Make sure this is printed to STDERR in any case, but also
+ * make sure it's printed only once. */
+ if (list_log != NULL)
+ fprintf (stderr, "ERROR: %s\n", errbuf);
+
+ return (1);
+ }
+
+ if ((reg_handle = (void (*) (void)) lt_dlsym (dlh, "module_register")) == NULL)
+ {
+ WARNING ("Couldn't find symbol \"module_register\" in \"%s\": %s\n",
+ file, lt_dlerror ());
+ lt_dlclose (dlh);
+ return (-1);
+ }
+
+ (*reg_handle) ();
+
+ return (0);
+}
+
+static void *plugin_read_thread (void __attribute__((unused)) *args)
+{
+ while (read_loop != 0)
+ {
+ read_func_t *rf;
+ plugin_ctx_t old_ctx;
+ cdtime_t now;
+ int status;
+ int rf_type;
+ int rc;
+
+ /* Get the read function that needs to be read next.
+ * We don't need to hold "read_lock" for the heap, but we need
+ * to call c_heap_get_root() and pthread_cond_wait() in the
+ * same protected block. */
+ pthread_mutex_lock (&read_lock);
+ rf = c_heap_get_root (read_heap);
+ if (rf == NULL)
+ {
+ pthread_cond_wait (&read_cond, &read_lock);
+ pthread_mutex_unlock (&read_lock);
+ continue;
+ }
+ pthread_mutex_unlock (&read_lock);
+
+ if (rf->rf_interval == 0)
+ {
+ /* this should not happen, because the interval is set
+ * for each plugin when loading it
+ * XXX: issue a warning? */
+ rf->rf_interval = plugin_get_interval ();
+ rf->rf_effective_interval = rf->rf_interval;
+
+ rf->rf_next_read = cdtime ();
+ }
+
+ /* sleep until this entry is due,
+ * using pthread_cond_timedwait */
+ pthread_mutex_lock (&read_lock);
+ /* In pthread_cond_timedwait, spurious wakeups are possible
+ * (and really happen, at least on NetBSD with > 1 CPU), thus
+ * we need to re-evaluate the condition every time
+ * pthread_cond_timedwait returns. */
+ rc = 0;
+ while ((read_loop != 0)
+ && (cdtime () < rf->rf_next_read)
+ && rc == 0)
+ {
+ struct timespec ts = { 0 };
+
+ CDTIME_T_TO_TIMESPEC (rf->rf_next_read, &ts);
+
+ rc = pthread_cond_timedwait (&read_cond, &read_lock,
+ &ts);
+ }
+
+ /* Must hold `read_lock' when accessing `rf->rf_type'. */
+ rf_type = rf->rf_type;
+ pthread_mutex_unlock (&read_lock);
+
+ /* Check if we're supposed to stop.. This may have interrupted
+ * the sleep, too. */
+ if (read_loop == 0)
+ {
+ /* Insert `rf' again, so it can be free'd correctly */
+ c_heap_insert (read_heap, rf);
+ break;
+ }
+
+ /* The entry has been marked for deletion. The linked list
+ * entry has already been removed by `plugin_unregister_read'.
+ * All we have to do here is free the `read_func_t' and
+ * continue. */
+ if (rf_type == RF_REMOVE)
+ {
+ DEBUG ("plugin_read_thread: Destroying the `%s' "
+ "callback.", rf->rf_name);
+ sfree (rf->rf_name);
+ destroy_callback ((callback_func_t *) rf);
+ rf = NULL;
+ continue;
+ }
+
+ DEBUG ("plugin_read_thread: Handling `%s'.", rf->rf_name);
+
+ old_ctx = plugin_set_ctx (rf->rf_ctx);
+
+ if (rf_type == RF_SIMPLE)
+ {
+ int (*callback) (void);
+
+ callback = rf->rf_callback;
+ status = (*callback) ();
+ }
+ else
+ {
+ plugin_read_cb callback;
+
+ assert (rf_type == RF_COMPLEX);
+
+ callback = rf->rf_callback;
+ status = (*callback) (&rf->rf_udata);
+ }
+
+ plugin_set_ctx (old_ctx);
+
+ /* If the function signals failure, we will increase the
+ * intervals in which it will be called. */
+ if (status != 0)
+ {
+ rf->rf_effective_interval *= 2;
+ if (rf->rf_effective_interval > max_read_interval)
+ rf->rf_effective_interval = max_read_interval;
+
+ NOTICE ("read-function of plugin `%s' failed. "
+ "Will suspend it for %.3f seconds.",
+ rf->rf_name,
+ CDTIME_T_TO_DOUBLE (rf->rf_effective_interval));
+ }
+ else
+ {
+ /* Success: Restore the interval, if it was changed. */
+ rf->rf_effective_interval = rf->rf_interval;
+ }
+
+ /* update the ``next read due'' field */
+ now = cdtime ();
+
+ DEBUG ("plugin_read_thread: Effective interval of the "
+ "%s plugin is %.3f seconds.",
+ rf->rf_name,
+ CDTIME_T_TO_DOUBLE (rf->rf_effective_interval));
+
+ /* Calculate the next (absolute) time at which this function
+ * should be called. */
+ rf->rf_next_read += rf->rf_effective_interval;
+
+ /* Check, if `rf_next_read' is in the past. */
+ if (rf->rf_next_read < now)
+ {
+ /* `rf_next_read' is in the past. Insert `now'
+ * so this value doesn't trail off into the
+ * past too much. */
+ rf->rf_next_read = now;
+ }
+
+ DEBUG ("plugin_read_thread: Next read of the %s plugin at %.3f.",
+ rf->rf_name,
+ CDTIME_T_TO_DOUBLE (rf->rf_next_read));
+
+ /* Re-insert this read function into the heap again. */
+ c_heap_insert (read_heap, rf);
+ } /* while (read_loop) */
+
+ pthread_exit (NULL);
+ return ((void *) 0);
+} /* void *plugin_read_thread */
+
+static void start_read_threads (int num)
+{
+ int i;
+
+ if (read_threads != NULL)
+ return;
+
+ read_threads = (pthread_t *) calloc (num, sizeof (pthread_t));
+ if (read_threads == NULL)
+ {
+ ERROR ("plugin: start_read_threads: calloc failed.");
+ return;
+ }
+
+ read_threads_num = 0;
+ for (i = 0; i < num; i++)
+ {
+ if (pthread_create (read_threads + read_threads_num, NULL,
+ plugin_read_thread, NULL) == 0)
+ {
+ read_threads_num++;
+ }
+ else
+ {
+ ERROR ("plugin: start_read_threads: pthread_create failed.");
+ return;
+ }
+ } /* for (i) */
+} /* void start_read_threads */
+
+static void stop_read_threads (void)
+{
+ int i;
+
+ if (read_threads == NULL)
+ return;
+
+ INFO ("collectd: Stopping %i read threads.", read_threads_num);
+
+ pthread_mutex_lock (&read_lock);
+ read_loop = 0;
+ DEBUG ("plugin: stop_read_threads: Signalling `read_cond'");
+ pthread_cond_broadcast (&read_cond);
+ pthread_mutex_unlock (&read_lock);
+
+ for (i = 0; i < read_threads_num; i++)
+ {
+ if (pthread_join (read_threads[i], NULL) != 0)
+ {
+ ERROR ("plugin: stop_read_threads: pthread_join failed.");
+ }
+ read_threads[i] = (pthread_t) 0;
+ }
+ sfree (read_threads);
+ read_threads_num = 0;
+} /* void stop_read_threads */
+
+static void plugin_value_list_free (value_list_t *vl) /* {{{ */
+{
+ if (vl == NULL)
+ return;
+
+ meta_data_destroy (vl->meta);
+ sfree (vl->values);
+ sfree (vl);
+} /* }}} void plugin_value_list_free */
+
+static value_list_t *plugin_value_list_clone (value_list_t const *vl_orig) /* {{{ */
+{
+ value_list_t *vl;
+
+ if (vl_orig == NULL)
+ return (NULL);
+
+ vl = malloc (sizeof (*vl));
+ if (vl == NULL)
+ return (NULL);
+ memcpy (vl, vl_orig, sizeof (*vl));
+
+ vl->values = calloc (vl_orig->values_len, sizeof (*vl->values));
+ if (vl->values == NULL)
+ {
+ plugin_value_list_free (vl);
+ return (NULL);
+ }
+ memcpy (vl->values, vl_orig->values,
+ vl_orig->values_len * sizeof (*vl->values));
+
+ vl->meta = meta_data_clone (vl->meta);
+ if ((vl_orig->meta != NULL) && (vl->meta == NULL))
+ {
+ plugin_value_list_free (vl);
+ return (NULL);
+ }
+
+ if (vl->time == 0)
+ vl->time = cdtime ();
+
+ /* Fill in the interval from the thread context, if it is zero. */
+ if (vl->interval == 0)
+ {
+ plugin_ctx_t ctx = plugin_get_ctx ();
+
+ if (ctx.interval != 0)
+ vl->interval = ctx.interval;
+ else
+ {
+ char name[6 * DATA_MAX_NAME_LEN];
+ FORMAT_VL (name, sizeof (name), vl);
+ ERROR ("plugin_value_list_clone: Unable to determine "
+ "interval from context for "
+ "value list \"%s\". "
+ "This indicates a broken plugin. "
+ "Please report this problem to the "
+ "collectd mailing list or at "
+ "<http://collectd.org/bugs/>.", name);
+ vl->interval = cf_get_default_interval ();
+ }
+ }
+
+ return (vl);
+} /* }}} value_list_t *plugin_value_list_clone */
+
+static int plugin_write_enqueue (value_list_t const *vl) /* {{{ */
+{
+ write_queue_t *q;
+
+ q = malloc (sizeof (*q));
+ if (q == NULL)
+ return (ENOMEM);
+ q->next = NULL;
+
+ q->vl = plugin_value_list_clone (vl);
+ if (q->vl == NULL)
+ {
+ sfree (q);
+ return (ENOMEM);
+ }
+
+ /* Store context of caller (read plugin); otherwise, it would not be
+ * available to the write plugins when actually dispatching the
+ * value-list later on. */
+ q->ctx = plugin_get_ctx ();
+
+ pthread_mutex_lock (&write_lock);
+
+ if (write_queue_tail == NULL)
+ {
+ write_queue_head = q;
+ write_queue_tail = q;
+ write_queue_length = 1;
+ }
+ else
+ {
+ write_queue_tail->next = q;
+ write_queue_tail = q;
+ write_queue_length += 1;
+ }
+
+ pthread_cond_signal (&write_cond);
+ pthread_mutex_unlock (&write_lock);
+
+ return (0);
+} /* }}} int plugin_write_enqueue */
+
+static value_list_t *plugin_write_dequeue (void) /* {{{ */
+{
+ write_queue_t *q;
+ value_list_t *vl;
+
+ pthread_mutex_lock (&write_lock);
+
+ while (write_loop && (write_queue_head == NULL))
+ pthread_cond_wait (&write_cond, &write_lock);
+
+ if (write_queue_head == NULL)
+ {
+ pthread_mutex_unlock (&write_lock);
+ return (NULL);
+ }
+
+ q = write_queue_head;
+ write_queue_head = q->next;
+ write_queue_length -= 1;
+ if (write_queue_head == NULL) {
+ write_queue_tail = NULL;
+ assert(0 == write_queue_length);
+ }
+
+ pthread_mutex_unlock (&write_lock);
+
+ (void) plugin_set_ctx (q->ctx);
+
+ vl = q->vl;
+ sfree (q);
+ return (vl);
+} /* }}} value_list_t *plugin_write_dequeue */
+
+static void *plugin_write_thread (void __attribute__((unused)) *args) /* {{{ */
+{
+ while (write_loop)
+ {
+ value_list_t *vl = plugin_write_dequeue ();
+ if (vl == NULL)
+ continue;
+
+ plugin_dispatch_values_internal (vl);
+
+ plugin_value_list_free (vl);
+ }
+
+ pthread_exit (NULL);
+ return ((void *) 0);
+} /* }}} void *plugin_write_thread */
+
+static void start_write_threads (size_t num) /* {{{ */
+{
+ size_t i;
+
+ if (write_threads != NULL)
+ return;
+
+ write_threads = (pthread_t *) calloc (num, sizeof (pthread_t));
+ if (write_threads == NULL)
+ {
+ ERROR ("plugin: start_write_threads: calloc failed.");
+ return;
+ }
+
+ write_threads_num = 0;
+ for (i = 0; i < num; i++)
+ {
+ int status;
+
+ status = pthread_create (write_threads + write_threads_num,
+ /* attr = */ NULL,
+ plugin_write_thread,
+ /* arg = */ NULL);
+ if (status != 0)
+ {
+ char errbuf[1024];
+ ERROR ("plugin: start_write_threads: pthread_create failed "
+ "with status %i (%s).", status,
+ sstrerror (status, errbuf, sizeof (errbuf)));
+ return;
+ }
+
+ write_threads_num++;
+ } /* for (i) */
+} /* }}} void start_write_threads */
+
+static void stop_write_threads (void) /* {{{ */
+{
+ write_queue_t *q;
+ int i;
+
+ if (write_threads == NULL)
+ return;
+
+ INFO ("collectd: Stopping %zu write threads.", write_threads_num);
+
+ pthread_mutex_lock (&write_lock);
+ write_loop = 0;
+ DEBUG ("plugin: stop_write_threads: Signalling `write_cond'");
+ pthread_cond_broadcast (&write_cond);
+ pthread_mutex_unlock (&write_lock);
+
+ for (i = 0; i < write_threads_num; i++)
+ {
+ if (pthread_join (write_threads[i], NULL) != 0)
+ {
+ ERROR ("plugin: stop_write_threads: pthread_join failed.");
+ }
+ write_threads[i] = (pthread_t) 0;
+ }
+ sfree (write_threads);
+ write_threads_num = 0;
+
+ pthread_mutex_lock (&write_lock);
+ i = 0;
+ for (q = write_queue_head; q != NULL; )
+ {
+ write_queue_t *q1 = q;
+ plugin_value_list_free (q->vl);
+ q = q->next;
+ sfree (q1);
+ i++;
+ }
+ write_queue_head = NULL;
+ write_queue_tail = NULL;
+ write_queue_length = 0;
+ pthread_mutex_unlock (&write_lock);
+
+ if (i > 0)
+ {
+ WARNING ("plugin: %i value list%s left after shutting down "
+ "the write threads.",
+ i, (i == 1) ? " was" : "s were");
+ }
+} /* }}} void stop_write_threads */
+
+/*
+ * Public functions
+ */
+void plugin_set_dir (const char *dir)
+{
+ if (plugindir != NULL)
+ free (plugindir);
+
+ if (dir == NULL)
+ plugindir = NULL;
+ else if ((plugindir = strdup (dir)) == NULL)
+ {
+ char errbuf[1024];
+ ERROR ("strdup failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
+}
+
+static _Bool plugin_is_loaded (char const *name)
+{
+ int status;
+
+ if (plugins_loaded == NULL)
+ plugins_loaded = c_avl_create ((void *) strcasecmp);
+ assert (plugins_loaded != NULL);
+
+ status = c_avl_get (plugins_loaded, name, /* ret_value = */ NULL);
+ return (status == 0);
+}
+
+static int plugin_mark_loaded (char const *name)
+{
+ char *name_copy;
+ int status;
+
+ name_copy = strdup (name);
+ if (name_copy == NULL)
+ return (ENOMEM);
+
+ status = c_avl_insert (plugins_loaded,
+ /* key = */ name_copy, /* value = */ NULL);
+ return (status);
+}
+
+static void plugin_free_loaded ()
+{
+ void *key;
+ void *value;
+
+ if (plugins_loaded == NULL)
+ return;
+
+ while (c_avl_pick (plugins_loaded, &key, &value) == 0)
+ {
+ sfree (key);
+ assert (value == NULL);
+ }
+
+ c_avl_destroy (plugins_loaded);
+ plugins_loaded = NULL;
+}
+
+#define BUFSIZE 512
+int plugin_load (char const *plugin_name, uint32_t flags)
+{
+ DIR *dh;
+ const char *dir;
+ char filename[BUFSIZE] = "";
+ char typename[BUFSIZE];
- typename_len = strlen (typename);
+ int ret;
+ struct stat statbuf;
+ struct dirent *de;
+ int status;
+
+ if (plugin_name == NULL)
+ return (EINVAL);
+
+ /* Check if plugin is already loaded and don't do anything in this
+ * case. */
+ if (plugin_is_loaded (plugin_name))
+ return (0);
+
+ dir = plugin_get_dir ();
+ ret = 1;
+
+ /*
+ * XXX: Magic at work:
+ *
+ * Some of the language bindings, for example the Python and Perl
+ * plugins, need to be able to export symbols to the scripts they run.
+ * For this to happen, the "Globals" flag needs to be set.
+ * Unfortunately, this technical detail is hard to explain to the
+ * average user and she shouldn't have to worry about this, ideally.
+ * So in order to save everyone's sanity use a different default for a
+ * handful of special plugins. --octo
+ */
+ if ((strcasecmp ("perl", plugin_name) == 0)
+ || (strcasecmp ("python", plugin_name) == 0))
+ flags |= PLUGIN_FLAGS_GLOBAL;
+
+ /* `cpu' should not match `cpufreq'. To solve this we add `.so' to the
+ * type when matching the filename */
+ status = ssnprintf (typename, sizeof (typename), "%s.so", plugin_name);
+ if ((status < 0) || ((size_t) status >= sizeof (typename)))
+ {
+ WARNING ("plugin_load: Filename too long: \"%s.so\"", plugin_name);
+ return (-1);
+ }
- if (strncasecmp (de->d_name, typename, typename_len))
+
+ if ((dh = opendir (dir)) == NULL)
+ {
+ char errbuf[1024];
+ ERROR ("plugin_load: opendir (%s) failed: %s", dir,
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+
+ while ((de = readdir (dh)) != NULL)
+ {
++ if (strcasecmp (de->d_name, typename))
+ continue;
+
+ status = ssnprintf (filename, sizeof (filename),
+ "%s/%s", dir, de->d_name);
+ if ((status < 0) || ((size_t) status >= sizeof (filename)))
+ {
+ WARNING ("plugin_load: Filename too long: \"%s/%s\"",
+ dir, de->d_name);
+ continue;
+ }
+
+ if (lstat (filename, &statbuf) == -1)
+ {
+ char errbuf[1024];
+ WARNING ("plugin_load: stat (\"%s\") failed: %s",
+ filename,
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ continue;
+ }
+ else if (!S_ISREG (statbuf.st_mode))
+ {
+ /* don't follow symlinks */
+ WARNING ("plugin_load: %s is not a regular file.",
+ filename);
+ continue;
+ }
+
+ status = plugin_load_file (filename, flags);
+ if (status == 0)
+ {
+ /* success */
+ plugin_mark_loaded (plugin_name);
+ ret = 0;
+ break;
+ }
+ else
+ {
+ ERROR ("plugin_load: Load plugin \"%s\" failed with "
+ "status %i.", plugin_name, status);
+ }
+ }
+
+ closedir (dh);
+
+ if (filename[0] == 0)
+ ERROR ("plugin_load: Could not find plugin \"%s\" in %s",
+ plugin_name, dir);
+
+ return (ret);
+}
+
+/*
+ * The `register_*' functions follow
+ */
+int plugin_register_config (const char *name,
+ int (*callback) (const char *key, const char *val),
+ const char **keys, int keys_num)
+{
+ cf_register (name, callback, keys, keys_num);
+ return (0);
+} /* int plugin_register_config */
+
+int plugin_register_complex_config (const char *type,
+ int (*callback) (oconfig_item_t *))
+{
+ return (cf_register_complex (type, callback));
+} /* int plugin_register_complex_config */
+
+int plugin_register_init (const char *name,
+ int (*callback) (void))
+{
+ return (create_register_callback (&list_init, name, (void *) callback,
+ /* user_data = */ NULL));
+} /* plugin_register_init */
+
+static int plugin_compare_read_func (const void *arg0, const void *arg1)
+{
+ const read_func_t *rf0;
+ const read_func_t *rf1;
+
+ rf0 = arg0;
+ rf1 = arg1;
+
+ if (rf0->rf_next_read < rf1->rf_next_read)
+ return (-1);
+ else if (rf0->rf_next_read > rf1->rf_next_read)
+ return (1);
+ else
+ return (0);
+} /* int plugin_compare_read_func */
+
+/* Add a read function to both, the heap and a linked list. The linked list if
+ * used to look-up read functions, especially for the remove function. The heap
+ * is used to determine which plugin to read next. */
+static int plugin_insert_read (read_func_t *rf)
+{
+ int status;
+ llentry_t *le;
+
+ rf->rf_next_read = cdtime ();
+ rf->rf_effective_interval = rf->rf_interval;
+
+ pthread_mutex_lock (&read_lock);
+
+ if (read_list == NULL)
+ {
+ read_list = llist_create ();
+ if (read_list == NULL)
+ {
+ pthread_mutex_unlock (&read_lock);
+ ERROR ("plugin_insert_read: read_list failed.");
+ return (-1);
+ }
+ }
+
+ if (read_heap == NULL)
+ {
+ read_heap = c_heap_create (plugin_compare_read_func);
+ if (read_heap == NULL)
+ {
+ pthread_mutex_unlock (&read_lock);
+ ERROR ("plugin_insert_read: c_heap_create failed.");
+ return (-1);
+ }
+ }
+
+ le = llist_search (read_list, rf->rf_name);
+ if (le != NULL)
+ {
+ pthread_mutex_unlock (&read_lock);
+ WARNING ("The read function \"%s\" is already registered. "
+ "Check for duplicate \"LoadPlugin\" lines "
+ "in your configuration!",
+ rf->rf_name);
+ return (EINVAL);
+ }
+
+ le = llentry_create (rf->rf_name, rf);
+ if (le == NULL)
+ {
+ pthread_mutex_unlock (&read_lock);
+ ERROR ("plugin_insert_read: llentry_create failed.");
+ return (-1);
+ }
+
+ status = c_heap_insert (read_heap, rf);
+ if (status != 0)
+ {
+ pthread_mutex_unlock (&read_lock);
+ ERROR ("plugin_insert_read: c_heap_insert failed.");
+ llentry_destroy (le);
+ return (-1);
+ }
+
+ /* This does not fail. */
+ llist_append (read_list, le);
+
+ /* Wake up all the read threads. */
+ pthread_cond_broadcast (&read_cond);
+ pthread_mutex_unlock (&read_lock);
+ return (0);
+} /* int plugin_insert_read */
+
+int plugin_register_read (const char *name,
+ int (*callback) (void))
+{
+ read_func_t *rf;
+ int status;
+
+ rf = malloc (sizeof (*rf));
+ if (rf == NULL)
+ {
+ ERROR ("plugin_register_read: malloc failed.");
+ return (ENOMEM);
+ }
+
+ memset (rf, 0, sizeof (read_func_t));
+ rf->rf_callback = (void *) callback;
+ rf->rf_udata.data = NULL;
+ rf->rf_udata.free_func = NULL;
+ rf->rf_ctx = plugin_get_ctx ();
+ rf->rf_group[0] = '\0';
+ rf->rf_name = strdup (name);
+ rf->rf_type = RF_SIMPLE;
+ rf->rf_interval = plugin_get_interval ();
+
+ status = plugin_insert_read (rf);
+ if (status != 0)
+ sfree (rf);
+
+ return (status);
+} /* int plugin_register_read */
+
+int plugin_register_complex_read (const char *group, const char *name,
+ plugin_read_cb callback,
+ const struct timespec *interval,
+ user_data_t *user_data)
+{
+ read_func_t *rf;
+ int status;
+
+ rf = malloc (sizeof (*rf));
+ if (rf == NULL)
+ {
+ ERROR ("plugin_register_complex_read: malloc failed.");
+ return (ENOMEM);
+ }
+
+ memset (rf, 0, sizeof (read_func_t));
+ rf->rf_callback = (void *) callback;
+ if (group != NULL)
+ sstrncpy (rf->rf_group, group, sizeof (rf->rf_group));
+ else
+ rf->rf_group[0] = '\0';
+ rf->rf_name = strdup (name);
+ rf->rf_type = RF_COMPLEX;
+ if (interval != NULL)
+ rf->rf_interval = TIMESPEC_TO_CDTIME_T (interval);
+ else
+ rf->rf_interval = plugin_get_interval ();
+
+ /* Set user data */
+ if (user_data == NULL)
+ {
+ rf->rf_udata.data = NULL;
+ rf->rf_udata.free_func = NULL;
+ }
+ else
+ {
+ rf->rf_udata = *user_data;
+ }
+
+ rf->rf_ctx = plugin_get_ctx ();
+
+ status = plugin_insert_read (rf);
+ if (status != 0)
+ sfree (rf);
+
+ return (status);
+} /* int plugin_register_complex_read */
+
+int plugin_register_write (const char *name,
+ plugin_write_cb callback, user_data_t *ud)
+{
+ return (create_register_callback (&list_write, name,
+ (void *) callback, ud));
+} /* int plugin_register_write */
+
+int plugin_register_flush (const char *name,
+ plugin_flush_cb callback, user_data_t *ud)
+{
+ return (create_register_callback (&list_flush, name,
+ (void *) callback, ud));
+} /* int plugin_register_flush */
+
+int plugin_register_missing (const char *name,
+ plugin_missing_cb callback, user_data_t *ud)
+{
+ return (create_register_callback (&list_missing, name,
+ (void *) callback, ud));
+} /* int plugin_register_missing */
+
+int plugin_register_shutdown (const char *name,
+ int (*callback) (void))
+{
+ return (create_register_callback (&list_shutdown, name,
+ (void *) callback, /* user_data = */ NULL));
+} /* int plugin_register_shutdown */
+
+static void plugin_free_data_sets (void)
+{
+ void *key;
+ void *value;
+
+ if (data_sets == NULL)
+ return;
+
+ while (c_avl_pick (data_sets, &key, &value) == 0)
+ {
+ data_set_t *ds = value;
+ /* key is a pointer to ds->type */
+
+ sfree (ds->ds);
+ sfree (ds);
+ }
+
+ c_avl_destroy (data_sets);
+ data_sets = NULL;
+} /* void plugin_free_data_sets */
+
+int plugin_register_data_set (const data_set_t *ds)
+{
+ data_set_t *ds_copy;
+ int i;
+
+ if ((data_sets != NULL)
+ && (c_avl_get (data_sets, ds->type, NULL) == 0))
+ {
+ NOTICE ("Replacing DS `%s' with another version.", ds->type);
+ plugin_unregister_data_set (ds->type);
+ }
+ else if (data_sets == NULL)
+ {
+ data_sets = c_avl_create ((int (*) (const void *, const void *)) strcmp);
+ if (data_sets == NULL)
+ return (-1);
+ }
+
+ ds_copy = (data_set_t *) malloc (sizeof (data_set_t));
+ if (ds_copy == NULL)
+ return (-1);
+ memcpy(ds_copy, ds, sizeof (data_set_t));
+
+ ds_copy->ds = (data_source_t *) malloc (sizeof (data_source_t)
+ * ds->ds_num);
+ if (ds_copy->ds == NULL)
+ {
+ free (ds_copy);
+ return (-1);
+ }
+
+ for (i = 0; i < ds->ds_num; i++)
+ memcpy (ds_copy->ds + i, ds->ds + i, sizeof (data_source_t));
+
+ return (c_avl_insert (data_sets, (void *) ds_copy->type, (void *) ds_copy));
+} /* int plugin_register_data_set */
+
+int plugin_register_log (const char *name,
+ plugin_log_cb callback, user_data_t *ud)
+{
+ return (create_register_callback (&list_log, name,
+ (void *) callback, ud));
+} /* int plugin_register_log */
+
+int plugin_register_notification (const char *name,
+ plugin_notification_cb callback, user_data_t *ud)
+{
+ return (create_register_callback (&list_notification, name,
+ (void *) callback, ud));
+} /* int plugin_register_log */
+
+int plugin_unregister_config (const char *name)
+{
+ cf_unregister (name);
+ return (0);
+} /* int plugin_unregister_config */
+
+int plugin_unregister_complex_config (const char *name)
+{
+ cf_unregister_complex (name);
+ return (0);
+} /* int plugin_unregister_complex_config */
+
+int plugin_unregister_init (const char *name)
+{
+ return (plugin_unregister (list_init, name));
+}
+
+int plugin_unregister_read (const char *name) /* {{{ */
+{
+ llentry_t *le;
+ read_func_t *rf;
+
+ if (name == NULL)
+ return (-ENOENT);
+
+ pthread_mutex_lock (&read_lock);
+
+ if (read_list == NULL)
+ {
+ pthread_mutex_unlock (&read_lock);
+ return (-ENOENT);
+ }
+
+ le = llist_search (read_list, name);
+ if (le == NULL)
+ {
+ pthread_mutex_unlock (&read_lock);
+ WARNING ("plugin_unregister_read: No such read function: %s",
+ name);
+ return (-ENOENT);
+ }
+
+ llist_remove (read_list, le);
+
+ rf = le->value;
+ assert (rf != NULL);
+ rf->rf_type = RF_REMOVE;
+
+ pthread_mutex_unlock (&read_lock);
+
+ llentry_destroy (le);
+
+ DEBUG ("plugin_unregister_read: Marked `%s' for removal.", name);
+
+ return (0);
+} /* }}} int plugin_unregister_read */
+
+static int compare_read_func_group (llentry_t *e, void *ud) /* {{{ */
+{
+ read_func_t *rf = e->value;
+ char *group = ud;
+
+ return strcmp (rf->rf_group, (const char *)group);
+} /* }}} int compare_read_func_group */
+
+int plugin_unregister_read_group (const char *group) /* {{{ */
+{
+ llentry_t *le;
+ read_func_t *rf;
+
+ int found = 0;
+
+ if (group == NULL)
+ return (-ENOENT);
+
+ pthread_mutex_lock (&read_lock);
+
+ if (read_list == NULL)
+ {
+ pthread_mutex_unlock (&read_lock);
+ return (-ENOENT);
+ }
+
+ while (42)
+ {
+ le = llist_search_custom (read_list,
+ compare_read_func_group, (void *)group);
+
+ if (le == NULL)
+ break;
+
+ ++found;
+
+ llist_remove (read_list, le);
+
+ rf = le->value;
+ assert (rf != NULL);
+ rf->rf_type = RF_REMOVE;
+
+ llentry_destroy (le);
+
+ DEBUG ("plugin_unregister_read_group: "
+ "Marked `%s' (group `%s') for removal.",
+ rf->rf_name, group);
+ }
+
+ pthread_mutex_unlock (&read_lock);
+
+ if (found == 0)
+ {
+ WARNING ("plugin_unregister_read_group: No such "
+ "group of read function: %s", group);
+ return (-ENOENT);
+ }
+
+ return (0);
+} /* }}} int plugin_unregister_read_group */
+
+int plugin_unregister_write (const char *name)
+{
+ return (plugin_unregister (list_write, name));
+}
+
+int plugin_unregister_flush (const char *name)
+{
+ return (plugin_unregister (list_flush, name));
+}
+
+int plugin_unregister_missing (const char *name)
+{
+ return (plugin_unregister (list_missing, name));
+}
+
+int plugin_unregister_shutdown (const char *name)
+{
+ return (plugin_unregister (list_shutdown, name));
+}
+
+int plugin_unregister_data_set (const char *name)
+{
+ data_set_t *ds;
+
+ if (data_sets == NULL)
+ return (-1);
+
+ if (c_avl_remove (data_sets, name, NULL, (void *) &ds) != 0)
+ return (-1);
+
+ sfree (ds->ds);
+ sfree (ds);
+
+ return (0);
+} /* int plugin_unregister_data_set */
+
+int plugin_unregister_log (const char *name)
+{
+ return (plugin_unregister (list_log, name));
+}
+
+int plugin_unregister_notification (const char *name)
+{
+ return (plugin_unregister (list_notification, name));
+}
+
+void plugin_init_all (void)
+{
+ char const *chain_name;
+ long write_threads_num;
+ llentry_t *le;
+ int status;
+
+ /* Init the value cache */
+ uc_init ();
+
+ if (IS_TRUE (global_option_get ("CollectInternalStats")))
+ record_statistics = 1;
+
+ chain_name = global_option_get ("PreCacheChain");
+ pre_cache_chain = fc_chain_get_by_name (chain_name);
+
+ chain_name = global_option_get ("PostCacheChain");
+ post_cache_chain = fc_chain_get_by_name (chain_name);
+
+ write_limit_high = global_option_get_long ("WriteQueueLimitHigh",
+ /* default = */ 0);
+ if (write_limit_high < 0)
+ {
+ ERROR ("WriteQueueLimitHigh must be positive or zero.");
+ write_limit_high = 0;
+ }
+
+ write_limit_low = global_option_get_long ("WriteQueueLimitLow",
+ /* default = */ write_limit_high / 2);
+ if (write_limit_low < 0)
+ {
+ ERROR ("WriteQueueLimitLow must be positive or zero.");
+ write_limit_low = write_limit_high / 2;
+ }
+ else if (write_limit_low > write_limit_high)
+ {
+ ERROR ("WriteQueueLimitLow must not be larger than "
+ "WriteQueueLimitHigh.");
+ write_limit_low = write_limit_high;
+ }
+
+ write_threads_num = global_option_get_long ("WriteThreads",
+ /* default = */ 5);
+ if (write_threads_num < 1)
+ {
+ ERROR ("WriteThreads must be positive.");
+ write_threads_num = 5;
+ }
+
+ start_write_threads ((size_t) write_threads_num);
+
+ if ((list_init == NULL) && (read_heap == NULL))
+ return;
+
+ /* Calling all init callbacks before checking if read callbacks
+ * are available allows the init callbacks to register the read
+ * callback. */
+ le = llist_head (list_init);
+ while (le != NULL)
+ {
+ callback_func_t *cf;
+ plugin_init_cb callback;
+ plugin_ctx_t old_ctx;
+
+ cf = le->value;
+ old_ctx = plugin_set_ctx (cf->cf_ctx);
+ callback = cf->cf_callback;
+ status = (*callback) ();
+ plugin_set_ctx (old_ctx);
+
+ if (status != 0)
+ {
+ ERROR ("Initialization of plugin `%s' "
+ "failed with status %i. "
+ "Plugin will be unloaded.",
+ le->key, status);
+ /* Plugins that register read callbacks from the init
+ * callback should take care of appropriate error
+ * handling themselves. */
+ /* FIXME: Unload _all_ functions */
+ plugin_unregister_read (le->key);
+ }
+
+ le = le->next;
+ }
+
+ max_read_interval = global_option_get_time ("MaxReadInterval",
+ DEFAULT_MAX_READ_INTERVAL);
+
+ /* Start read-threads */
+ if (read_heap != NULL)
+ {
+ const char *rt;
+ int num;
+
+ rt = global_option_get ("ReadThreads");
+ num = atoi (rt);
+ if (num != -1)
+ start_read_threads ((num > 0) ? num : 5);
+ }
+} /* void plugin_init_all */
+
+/* TODO: Rename this function. */
+void plugin_read_all (void)
+{
+ if(record_statistics) {
+ plugin_update_internal_statistics ();
+ }
+ uc_check_timeout ();
+
+ return;
+} /* void plugin_read_all */
+
+/* Read function called when the `-T' command line argument is given. */
+int plugin_read_all_once (void)
+{
+ int status;
+ int return_status = 0;
+
+ if (read_heap == NULL)
+ {
+ NOTICE ("No read-functions are registered.");
+ return (0);
+ }
+
+ while (42)
+ {
+ read_func_t *rf;
+ plugin_ctx_t old_ctx;
+
+ rf = c_heap_get_root (read_heap);
+ if (rf == NULL)
+ break;
+
+ old_ctx = plugin_set_ctx (rf->rf_ctx);
+
+ if (rf->rf_type == RF_SIMPLE)
+ {
+ int (*callback) (void);
+
+ callback = rf->rf_callback;
+ status = (*callback) ();
+ }
+ else
+ {
+ plugin_read_cb callback;
+
+ callback = rf->rf_callback;
+ status = (*callback) (&rf->rf_udata);
+ }
+
+ plugin_set_ctx (old_ctx);
+
+ if (status != 0)
+ {
+ NOTICE ("read-function of plugin `%s' failed.",
+ rf->rf_name);
+ return_status = -1;
+ }
+
+ destroy_callback ((void *) rf);
+ }
+
+ return (return_status);
+} /* int plugin_read_all_once */
+
+int plugin_write (const char *plugin, /* {{{ */
+ const data_set_t *ds, const value_list_t *vl)
+{
+ llentry_t *le;
+ int status;
+
+ if (vl == NULL)
+ return (EINVAL);
+
+ if (list_write == NULL)
+ return (ENOENT);
+
+ if (ds == NULL)
+ {
+ ds = plugin_get_ds (vl->type);
+ if (ds == NULL)
+ {
+ ERROR ("plugin_write: Unable to lookup type `%s'.", vl->type);
+ return (ENOENT);
+ }
+ }
+
+ if (plugin == NULL)
+ {
+ int success = 0;
+ int failure = 0;
+
+ le = llist_head (list_write);
+ while (le != NULL)
+ {
+ callback_func_t *cf = le->value;
+ plugin_write_cb callback;
+
+ /* do not switch plugin context; rather keep the context (interval)
+ * information of the calling read plugin */
+
+ DEBUG ("plugin: plugin_write: Writing values via %s.", le->key);
+ callback = cf->cf_callback;
+ status = (*callback) (ds, vl, &cf->cf_udata);
+ if (status != 0)
+ failure++;
+ else
+ success++;
+
+ le = le->next;
+ }
+
+ if ((success == 0) && (failure != 0))
+ status = -1;
+ else
+ status = 0;
+ }
+ else /* plugin != NULL */
+ {
+ callback_func_t *cf;
+ plugin_write_cb callback;
+
+ le = llist_head (list_write);
+ while (le != NULL)
+ {
+ if (strcasecmp (plugin, le->key) == 0)
+ break;
+
+ le = le->next;
+ }
+
+ if (le == NULL)
+ return (ENOENT);
+
+ cf = le->value;
+
+ /* do not switch plugin context; rather keep the context (interval)
+ * information of the calling read plugin */
+
+ DEBUG ("plugin: plugin_write: Writing values via %s.", le->key);
+ callback = cf->cf_callback;
+ status = (*callback) (ds, vl, &cf->cf_udata);
+ }
+
+ return (status);
+} /* }}} int plugin_write */
+
+int plugin_flush (const char *plugin, cdtime_t timeout, const char *identifier)
+{
+ llentry_t *le;
+
+ if (list_flush == NULL)
+ return (0);
+
+ le = llist_head (list_flush);
+ while (le != NULL)
+ {
+ callback_func_t *cf;
+ plugin_flush_cb callback;
+ plugin_ctx_t old_ctx;
+
+ if ((plugin != NULL)
+ && (strcmp (plugin, le->key) != 0))
+ {
+ le = le->next;
+ continue;
+ }
+
+ cf = le->value;
+ old_ctx = plugin_set_ctx (cf->cf_ctx);
+ callback = cf->cf_callback;
+
+ (*callback) (timeout, identifier, &cf->cf_udata);
+
+ plugin_set_ctx (old_ctx);
+
+ le = le->next;
+ }
+ return (0);
+} /* int plugin_flush */
+
+void plugin_shutdown_all (void)
+{
+ llentry_t *le;
+
+ stop_read_threads ();
+
+ destroy_all_callbacks (&list_init);
+
+ pthread_mutex_lock (&read_lock);
+ llist_destroy (read_list);
+ read_list = NULL;
+ pthread_mutex_unlock (&read_lock);
+
+ destroy_read_heap ();
+
+ plugin_flush (/* plugin = */ NULL,
+ /* timeout = */ 0,
+ /* identifier = */ NULL);
+
+ le = NULL;
+ if (list_shutdown != NULL)
+ le = llist_head (list_shutdown);
+
+ while (le != NULL)
+ {
+ callback_func_t *cf;
+ plugin_shutdown_cb callback;
+ plugin_ctx_t old_ctx;
+
+ cf = le->value;
+ old_ctx = plugin_set_ctx (cf->cf_ctx);
+ callback = cf->cf_callback;
+
+ /* Advance the pointer before calling the callback allows
+ * shutdown functions to unregister themselves. If done the
+ * other way around the memory `le' points to will be freed
+ * after callback returns. */
+ le = le->next;
+
+ (*callback) ();
+
+ plugin_set_ctx (old_ctx);
+ }
+
+ stop_write_threads ();
+
+ /* Write plugins which use the `user_data' pointer usually need the
+ * same data available to the flush callback. If this is the case, set
+ * the free_function to NULL when registering the flush callback and to
+ * the real free function when registering the write callback. This way
+ * the data isn't freed twice. */
+ destroy_all_callbacks (&list_flush);
+ destroy_all_callbacks (&list_missing);
+ destroy_all_callbacks (&list_write);
+
+ destroy_all_callbacks (&list_notification);
+ destroy_all_callbacks (&list_shutdown);
+ destroy_all_callbacks (&list_log);
+
+ plugin_free_loaded ();
+ plugin_free_data_sets ();
+} /* void plugin_shutdown_all */
+
+int plugin_dispatch_missing (const value_list_t *vl) /* {{{ */
+{
+ llentry_t *le;
+
+ if (list_missing == NULL)
+ return (0);
+
+ le = llist_head (list_missing);
+ while (le != NULL)
+ {
+ callback_func_t *cf;
+ plugin_missing_cb callback;
+ plugin_ctx_t old_ctx;
+ int status;
+
+ cf = le->value;
+ old_ctx = plugin_set_ctx (cf->cf_ctx);
+ callback = cf->cf_callback;
+
+ status = (*callback) (vl, &cf->cf_udata);
+ plugin_set_ctx (old_ctx);
+ if (status != 0)
+ {
+ if (status < 0)
+ {
+ ERROR ("plugin_dispatch_missing: Callback function \"%s\" "
+ "failed with status %i.",
+ le->key, status);
+ return (status);
+ }
+ else
+ {
+ return (0);
+ }
+ }
+
+ le = le->next;
+ }
+ return (0);
+} /* int }}} plugin_dispatch_missing */
+
+static int plugin_dispatch_values_internal (value_list_t *vl)
+{
+ int status;
+ static c_complain_t no_write_complaint = C_COMPLAIN_INIT_STATIC;
+
+ value_t *saved_values;
+ int saved_values_len;
+
+ data_set_t *ds;
+
+ int free_meta_data = 0;
+
+ if ((vl == NULL) || (vl->type[0] == 0)
+ || (vl->values == NULL) || (vl->values_len < 1))
+ {
+ ERROR ("plugin_dispatch_values: Invalid value list "
+ "from plugin %s.", vl->plugin);
+ return (-1);
+ }
+
+ /* Free meta data only if the calling function didn't specify any. In
+ * this case matches and targets may add some and the calling function
+ * may not expect (and therefore free) that data. */
+ if (vl->meta == NULL)
+ free_meta_data = 1;
+
+ if (list_write == NULL)
+ c_complain_once (LOG_WARNING, &no_write_complaint,
+ "plugin_dispatch_values: No write callback has been "
+ "registered. Please load at least one output plugin, "
+ "if you want the collected data to be stored.");
+
+ if (data_sets == NULL)
+ {
+ ERROR ("plugin_dispatch_values: No data sets registered. "
+ "Could the types database be read? Check "
+ "your `TypesDB' setting!");
+ return (-1);
+ }
+
+ if (c_avl_get (data_sets, vl->type, (void *) &ds) != 0)
+ {
+ char ident[6 * DATA_MAX_NAME_LEN];
+
+ FORMAT_VL (ident, sizeof (ident), vl);
+ INFO ("plugin_dispatch_values: Dataset not found: %s "
+ "(from \"%s\"), check your types.db!",
+ vl->type, ident);
+ return (-1);
+ }
+
+ /* Assured by plugin_value_list_clone(). The time is determined at
+ * _enqueue_ time. */
+ assert (vl->time != 0);
+ assert (vl->interval != 0);
+
+ DEBUG ("plugin_dispatch_values: time = %.3f; interval = %.3f; "
+ "host = %s; "
+ "plugin = %s; plugin_instance = %s; "
+ "type = %s; type_instance = %s;",
+ CDTIME_T_TO_DOUBLE (vl->time),
+ CDTIME_T_TO_DOUBLE (vl->interval),
+ vl->host,
+ vl->plugin, vl->plugin_instance,
+ vl->type, vl->type_instance);
+
+#if COLLECT_DEBUG
+ assert (0 == strcmp (ds->type, vl->type));
+#else
+ if (0 != strcmp (ds->type, vl->type))
+ WARNING ("plugin_dispatch_values: (ds->type = %s) != (vl->type = %s)",
+ ds->type, vl->type);
+#endif
+
+#if COLLECT_DEBUG
+ assert (ds->ds_num == vl->values_len);
+#else
+ if (ds->ds_num != vl->values_len)
+ {
+ ERROR ("plugin_dispatch_values: ds->type = %s: "
+ "(ds->ds_num = %i) != "
+ "(vl->values_len = %i)",
+ ds->type, ds->ds_num, vl->values_len);
+ return (-1);
+ }
+#endif
+
+ escape_slashes (vl->host, sizeof (vl->host));
+ escape_slashes (vl->plugin, sizeof (vl->plugin));
+ escape_slashes (vl->plugin_instance, sizeof (vl->plugin_instance));
+ escape_slashes (vl->type, sizeof (vl->type));
+ escape_slashes (vl->type_instance, sizeof (vl->type_instance));
+
+ /* Copy the values. This way, we can assure `targets' that they get
+ * dynamically allocated values, which they can free and replace if
+ * they like. */
+ if ((pre_cache_chain != NULL) || (post_cache_chain != NULL))
+ {
+ saved_values = vl->values;
+ saved_values_len = vl->values_len;
+
+ vl->values = (value_t *) calloc (vl->values_len,
+ sizeof (*vl->values));
+ if (vl->values == NULL)
+ {
+ ERROR ("plugin_dispatch_values: calloc failed.");
+ vl->values = saved_values;
+ return (-1);
+ }
+ memcpy (vl->values, saved_values,
+ vl->values_len * sizeof (*vl->values));
+ }
+ else /* if ((pre == NULL) && (post == NULL)) */
+ {
+ saved_values = NULL;
+ saved_values_len = 0;
+ }
+
+ if (pre_cache_chain != NULL)
+ {
+ status = fc_process_chain (ds, vl, pre_cache_chain);
+ if (status < 0)
+ {
+ WARNING ("plugin_dispatch_values: Running the "
+ "pre-cache chain failed with "
+ "status %i (%#x).",
+ status, status);
+ }
+ else if (status == FC_TARGET_STOP)
+ {
+ /* Restore the state of the value_list so that plugins
+ * don't get confused.. */
+ if (saved_values != NULL)
+ {
+ free (vl->values);
+ vl->values = saved_values;
+ vl->values_len = saved_values_len;
+ }
+ return (0);
+ }
+ }
+
+ /* Update the value cache */
+ uc_update (ds, vl);
+
+ if (post_cache_chain != NULL)
+ {
+ status = fc_process_chain (ds, vl, post_cache_chain);
+ if (status < 0)
+ {
+ WARNING ("plugin_dispatch_values: Running the "
+ "post-cache chain failed with "
+ "status %i (%#x).",
+ status, status);
+ }
+ }
+ else
+ fc_default_action (ds, vl);
+
+ /* Restore the state of the value_list so that plugins don't get
+ * confused.. */
+ if (saved_values != NULL)
+ {
+ free (vl->values);
+ vl->values = saved_values;
+ vl->values_len = saved_values_len;
+ }
+
+ if ((free_meta_data != 0) && (vl->meta != NULL))
+ {
+ meta_data_destroy (vl->meta);
+ vl->meta = NULL;
+ }
+
+ return (0);
+} /* int plugin_dispatch_values_internal */
+
+static double get_drop_probability (void) /* {{{ */
+{
+ long pos;
+ long size;
+ long wql;
+
+ pthread_mutex_lock (&write_lock);
+ wql = write_queue_length;
+ pthread_mutex_unlock (&write_lock);
+
+ if (wql < write_limit_low)
+ return (0.0);
+ if (wql >= write_limit_high)
+ return (1.0);
+
+ pos = 1 + wql - write_limit_low;
+ size = 1 + write_limit_high - write_limit_low;
+
+ return (((double) pos) / ((double) size));
+} /* }}} double get_drop_probability */
+
+static _Bool check_drop_value (void) /* {{{ */
+{
+ static cdtime_t last_message_time = 0;
+ static pthread_mutex_t last_message_lock = PTHREAD_MUTEX_INITIALIZER;
+
+ double p;
+ double q;
+ int status;
+
+ if (write_limit_high == 0)
+ return (0);
+
+ p = get_drop_probability ();
+ if (p == 0.0)
+ return (0);
+
+ status = pthread_mutex_trylock (&last_message_lock);
+ if (status == 0)
+ {
+ cdtime_t now;
+
+ now = cdtime ();
+ if ((now - last_message_time) > TIME_T_TO_CDTIME_T (1))
+ {
+ last_message_time = now;
+ ERROR ("plugin_dispatch_values: Low water mark "
+ "reached. Dropping %.0f%% of metrics.",
+ 100.0 * p);
+ }
+ pthread_mutex_unlock (&last_message_lock);
+ }
+
+ if (p == 1.0)
+ return (1);
+
+ q = cdrand_d ();
+ if (q > p)
+ return (1);
+ else
+ return (0);
+} /* }}} _Bool check_drop_value */
+
+int plugin_dispatch_values (value_list_t const *vl)
+{
+ int status;
+ static pthread_mutex_t statistics_lock = PTHREAD_MUTEX_INITIALIZER;
+
+ if (check_drop_value ()) {
+ if(record_statistics) {
+ pthread_mutex_lock(&statistics_lock);
+ stats_values_dropped++;
+ pthread_mutex_unlock(&statistics_lock);
+ }
+ return (0);
+ }
+
+ status = plugin_write_enqueue (vl);
+ if (status != 0)
+ {
+ char errbuf[1024];
+ ERROR ("plugin_dispatch_values: plugin_write_enqueue failed "
+ "with status %i (%s).", status,
+ sstrerror (status, errbuf, sizeof (errbuf)));
+ return (status);
+ }
+
+ return (0);
+}
+
+__attribute__((sentinel))
+int plugin_dispatch_multivalue (value_list_t const *template, /* {{{ */
+ _Bool store_percentage, int store_type, ...)
+{
+ value_list_t *vl;
+ int failed = 0;
+ gauge_t sum = 0.0;
+ va_list ap;
+
+ assert (template->values_len == 1);
+
+ /* Calculate sum for Gauge to calculate percent if needed */
+ if (DS_TYPE_GAUGE == store_type) {
+ va_start (ap, store_type);
+ while (42)
+ {
+ char const *name;
+ gauge_t value;
+
+ name = va_arg (ap, char const *);
+ if (name == NULL)
+ break;
+
+ value = va_arg (ap, gauge_t);
+ if (!isnan (value))
+ sum += value;
+ }
+ va_end (ap);
+ }
+
+
+ vl = plugin_value_list_clone (template);
+ /* plugin_value_list_clone makes sure vl->time is set to non-zero. */
+ if (store_percentage)
+ sstrncpy (vl->type, "percent", sizeof (vl->type));
+
+ va_start (ap, store_type);
+ while (42)
+ {
+ char const *name;
+ int status;
+
+ /* Set the type instance. */
+ name = va_arg (ap, char const *);
+ if (name == NULL)
+ break;
+ sstrncpy (vl->type_instance, name, sizeof (vl->type_instance));
+
+ /* Set the value. */
+ switch (store_type)
+ {
+ case DS_TYPE_GAUGE:
+ vl->values[0].gauge = va_arg (ap, gauge_t);
+ if (store_percentage)
+ vl->values[0].gauge *= 100.0 / sum;
+ break;
+ case DS_TYPE_ABSOLUTE:
+ vl->values[0].absolute = va_arg (ap, absolute_t);
+ break;
+ case DS_TYPE_COUNTER:
+ vl->values[0].counter = va_arg (ap, counter_t);
+ break;
+ case DS_TYPE_DERIVE:
+ vl->values[0].derive = va_arg (ap, derive_t);
+ break;
+ default:
+ ERROR ("plugin_dispatch_multivalue: given store_type is incorrect.");
+ failed++;
+ }
+
+
+ status = plugin_write_enqueue (vl);
+ if (status != 0)
+ failed++;
+ }
+ va_end (ap);
+
+ plugin_value_list_free (vl);
+ return (failed);
+} /* }}} int plugin_dispatch_multivalue */
+
+int plugin_dispatch_notification (const notification_t *notif)
+{
+ llentry_t *le;
+ /* Possible TODO: Add flap detection here */
+
+ DEBUG ("plugin_dispatch_notification: severity = %i; message = %s; "
+ "time = %.3f; host = %s;",
+ notif->severity, notif->message,
+ CDTIME_T_TO_DOUBLE (notif->time), notif->host);
+
+ /* Nobody cares for notifications */
+ if (list_notification == NULL)
+ return (-1);
+
+ le = llist_head (list_notification);
+ while (le != NULL)
+ {
+ callback_func_t *cf;
+ plugin_notification_cb callback;
+ int status;
+
+ /* do not switch plugin context; rather keep the context
+ * (interval) information of the calling plugin */
+
+ cf = le->value;
+ callback = cf->cf_callback;
+ status = (*callback) (notif, &cf->cf_udata);
+ if (status != 0)
+ {
+ WARNING ("plugin_dispatch_notification: Notification "
+ "callback %s returned %i.",
+ le->key, status);
+ }
+
+ le = le->next;
+ }
+
+ return (0);
+} /* int plugin_dispatch_notification */
+
+void plugin_log (int level, const char *format, ...)
+{
+ char msg[1024];
+ va_list ap;
+ llentry_t *le;
+
+#if !COLLECT_DEBUG
+ if (level >= LOG_DEBUG)
+ return;
+#endif
+
+ va_start (ap, format);
+ vsnprintf (msg, sizeof (msg), format, ap);
+ msg[sizeof (msg) - 1] = '\0';
+ va_end (ap);
+
+ if (list_log == NULL)
+ {
+ fprintf (stderr, "%s\n", msg);
+ return;
+ }
+
+ le = llist_head (list_log);
+ while (le != NULL)
+ {
+ callback_func_t *cf;
+ plugin_log_cb callback;
+
+ cf = le->value;
+ callback = cf->cf_callback;
+
+ /* do not switch plugin context; rather keep the context
+ * (interval) information of the calling plugin */
+
+ (*callback) (level, msg, &cf->cf_udata);
+
+ le = le->next;
+ }
+} /* void plugin_log */
+
+int parse_log_severity (const char *severity)
+{
+ int log_level = -1;
+
+ if ((0 == strcasecmp (severity, "emerg"))
+ || (0 == strcasecmp (severity, "alert"))
+ || (0 == strcasecmp (severity, "crit"))
+ || (0 == strcasecmp (severity, "err")))
+ log_level = LOG_ERR;
+ else if (0 == strcasecmp (severity, "warning"))
+ log_level = LOG_WARNING;
+ else if (0 == strcasecmp (severity, "notice"))
+ log_level = LOG_NOTICE;
+ else if (0 == strcasecmp (severity, "info"))
+ log_level = LOG_INFO;
+#if COLLECT_DEBUG
+ else if (0 == strcasecmp (severity, "debug"))
+ log_level = LOG_DEBUG;
+#endif /* COLLECT_DEBUG */
+
+ return (log_level);
+} /* int parse_log_severity */
+
+int parse_notif_severity (const char *severity)
+{
+ int notif_severity = -1;
+
+ if (strcasecmp (severity, "FAILURE") == 0)
+ notif_severity = NOTIF_FAILURE;
+ else if (strcmp (severity, "OKAY") == 0)
+ notif_severity = NOTIF_OKAY;
+ else if ((strcmp (severity, "WARNING") == 0)
+ || (strcmp (severity, "WARN") == 0))
+ notif_severity = NOTIF_WARNING;
+
+ return (notif_severity);
+} /* int parse_notif_severity */
+
+const data_set_t *plugin_get_ds (const char *name)
+{
+ data_set_t *ds;
+
+ if (data_sets == NULL)
+ {
+ ERROR ("plugin_get_ds: No data sets are defined yet.");
+ return (NULL);
+ }
+
+ if (c_avl_get (data_sets, name, (void *) &ds) != 0)
+ {
+ DEBUG ("No such dataset registered: %s", name);
+ return (NULL);
+ }
+
+ return (ds);
+} /* data_set_t *plugin_get_ds */
+
+static int plugin_notification_meta_add (notification_t *n,
+ const char *name,
+ enum notification_meta_type_e type,
+ const void *value)
+{
+ notification_meta_t *meta;
+ notification_meta_t *tail;
+
+ if ((n == NULL) || (name == NULL) || (value == NULL))
+ {
+ ERROR ("plugin_notification_meta_add: A pointer is NULL!");
+ return (-1);
+ }
+
+ meta = (notification_meta_t *) malloc (sizeof (notification_meta_t));
+ if (meta == NULL)
+ {
+ ERROR ("plugin_notification_meta_add: malloc failed.");
+ return (-1);
+ }
+ memset (meta, 0, sizeof (notification_meta_t));
+
+ sstrncpy (meta->name, name, sizeof (meta->name));
+ meta->type = type;
+
+ switch (type)
+ {
+ case NM_TYPE_STRING:
+ {
+ meta->nm_value.nm_string = strdup ((const char *) value);
+ if (meta->nm_value.nm_string == NULL)
+ {
+ ERROR ("plugin_notification_meta_add: strdup failed.");
+ sfree (meta);
+ return (-1);
+ }
+ break;
+ }
+ case NM_TYPE_SIGNED_INT:
+ {
+ meta->nm_value.nm_signed_int = *((int64_t *) value);
+ break;
+ }
+ case NM_TYPE_UNSIGNED_INT:
+ {
+ meta->nm_value.nm_unsigned_int = *((uint64_t *) value);
+ break;
+ }
+ case NM_TYPE_DOUBLE:
+ {
+ meta->nm_value.nm_double = *((double *) value);
+ break;
+ }
+ case NM_TYPE_BOOLEAN:
+ {
+ meta->nm_value.nm_boolean = *((_Bool *) value);
+ break;
+ }
+ default:
+ {
+ ERROR ("plugin_notification_meta_add: Unknown type: %i", type);
+ sfree (meta);
+ return (-1);
+ }
+ } /* switch (type) */
+
+ meta->next = NULL;
+ tail = n->meta;
+ while ((tail != NULL) && (tail->next != NULL))
+ tail = tail->next;
+
+ if (tail == NULL)
+ n->meta = meta;
+ else
+ tail->next = meta;
+
+ return (0);
+} /* int plugin_notification_meta_add */
+
+int plugin_notification_meta_add_string (notification_t *n,
+ const char *name,
+ const char *value)
+{
+ return (plugin_notification_meta_add (n, name, NM_TYPE_STRING, value));
+}
+
+int plugin_notification_meta_add_signed_int (notification_t *n,
+ const char *name,
+ int64_t value)
+{
+ return (plugin_notification_meta_add (n, name, NM_TYPE_SIGNED_INT, &value));
+}
+
+int plugin_notification_meta_add_unsigned_int (notification_t *n,
+ const char *name,
+ uint64_t value)
+{
+ return (plugin_notification_meta_add (n, name, NM_TYPE_UNSIGNED_INT, &value));
+}
+
+int plugin_notification_meta_add_double (notification_t *n,
+ const char *name,
+ double value)
+{
+ return (plugin_notification_meta_add (n, name, NM_TYPE_DOUBLE, &value));
+}
+
+int plugin_notification_meta_add_boolean (notification_t *n,
+ const char *name,
+ _Bool value)
+{
+ return (plugin_notification_meta_add (n, name, NM_TYPE_BOOLEAN, &value));
+}
+
+int plugin_notification_meta_copy (notification_t *dst,
+ const notification_t *src)
+{
+ notification_meta_t *meta;
+
+ assert (dst != NULL);
+ assert (src != NULL);
+ assert (dst != src);
+ assert ((src->meta == NULL) || (src->meta != dst->meta));
+
+ for (meta = src->meta; meta != NULL; meta = meta->next)
+ {
+ if (meta->type == NM_TYPE_STRING)
+ plugin_notification_meta_add_string (dst, meta->name,
+ meta->nm_value.nm_string);
+ else if (meta->type == NM_TYPE_SIGNED_INT)
+ plugin_notification_meta_add_signed_int (dst, meta->name,
+ meta->nm_value.nm_signed_int);
+ else if (meta->type == NM_TYPE_UNSIGNED_INT)
+ plugin_notification_meta_add_unsigned_int (dst, meta->name,
+ meta->nm_value.nm_unsigned_int);
+ else if (meta->type == NM_TYPE_DOUBLE)
+ plugin_notification_meta_add_double (dst, meta->name,
+ meta->nm_value.nm_double);
+ else if (meta->type == NM_TYPE_BOOLEAN)
+ plugin_notification_meta_add_boolean (dst, meta->name,
+ meta->nm_value.nm_boolean);
+ }
+
+ return (0);
+} /* int plugin_notification_meta_copy */
+
+int plugin_notification_meta_free (notification_meta_t *n)
+{
+ notification_meta_t *this;
+ notification_meta_t *next;
+
+ if (n == NULL)
+ {
+ ERROR ("plugin_notification_meta_free: n == NULL!");
+ return (-1);
+ }
+
+ this = n;
+ while (this != NULL)
+ {
+ next = this->next;
+
+ if (this->type == NM_TYPE_STRING)
+ {
+ free ((char *)this->nm_value.nm_string);
+ this->nm_value.nm_string = NULL;
+ }
+ sfree (this);
+
+ this = next;
+ }
+
+ return (0);
+} /* int plugin_notification_meta_free */
+
+static void plugin_ctx_destructor (void *ctx)
+{
+ sfree (ctx);
+} /* void plugin_ctx_destructor */
+
+static plugin_ctx_t ctx_init = { /* interval = */ 0 };
+
+static plugin_ctx_t *plugin_ctx_create (void)
+{
+ plugin_ctx_t *ctx;
+
+ ctx = malloc (sizeof (*ctx));
+ if (ctx == NULL) {
+ char errbuf[1024];
+ ERROR ("Failed to allocate plugin context: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return NULL;
+ }
+
+ *ctx = ctx_init;
+ assert (plugin_ctx_key_initialized);
+ pthread_setspecific (plugin_ctx_key, ctx);
+ DEBUG("Created new plugin context.");
+ return (ctx);
+} /* int plugin_ctx_create */
+
+void plugin_init_ctx (void)
+{
+ pthread_key_create (&plugin_ctx_key, plugin_ctx_destructor);
+ plugin_ctx_key_initialized = 1;
+} /* void plugin_init_ctx */
+
+plugin_ctx_t plugin_get_ctx (void)
+{
+ plugin_ctx_t *ctx;
+
+ assert (plugin_ctx_key_initialized);
+ ctx = pthread_getspecific (plugin_ctx_key);
+
+ if (ctx == NULL) {
+ ctx = plugin_ctx_create ();
+ /* this must no happen -- exit() instead? */
+ if (ctx == NULL)
+ return ctx_init;
+ }
+
+ return (*ctx);
+} /* plugin_ctx_t plugin_get_ctx */
+
+plugin_ctx_t plugin_set_ctx (plugin_ctx_t ctx)
+{
+ plugin_ctx_t *c;
+ plugin_ctx_t old;
+
+ assert (plugin_ctx_key_initialized);
+ c = pthread_getspecific (plugin_ctx_key);
+
+ if (c == NULL) {
+ c = plugin_ctx_create ();
+ /* this must no happen -- exit() instead? */
+ if (c == NULL)
+ return ctx_init;
+ }
+
+ old = *c;
+ *c = ctx;
+
+ return (old);
+} /* void plugin_set_ctx */
+
+cdtime_t plugin_get_interval (void)
+{
+ cdtime_t interval;
+
+ interval = plugin_get_ctx().interval;
+ if (interval > 0)
+ return interval;
+
+ return cf_get_default_interval ();
+} /* cdtime_t plugin_get_interval */
+
+typedef struct {
+ plugin_ctx_t ctx;
+ void *(*start_routine) (void *);
+ void *arg;
+} plugin_thread_t;
+
+static void *plugin_thread_start (void *arg)
+{
+ plugin_thread_t *plugin_thread = arg;
+
+ void *(*start_routine) (void *) = plugin_thread->start_routine;
+ void *plugin_arg = plugin_thread->arg;
+
+ plugin_set_ctx (plugin_thread->ctx);
+
+ free (plugin_thread);
+
+ return start_routine (plugin_arg);
+} /* void *plugin_thread_start */
+
+int plugin_thread_create (pthread_t *thread, const pthread_attr_t *attr,
+ void *(*start_routine) (void *), void *arg)
+{
+ plugin_thread_t *plugin_thread;
+
+ plugin_thread = malloc (sizeof (*plugin_thread));
+ if (plugin_thread == NULL)
+ return -1;
+
+ plugin_thread->ctx = plugin_get_ctx ();
+ plugin_thread->start_routine = start_routine;
+ plugin_thread->arg = arg;
+
+ return pthread_create (thread, attr,
+ plugin_thread_start, plugin_thread);
+} /* int plugin_thread_create */
+
+/* vim: set sw=8 ts=8 noet fdm=marker : */