AM_CONDITIONAL(BUILD_WITH_LIBGCRYPT, test "x$with_libgcrypt" = "xyes")
# }}}
+# --with-libgps {{{
+with_libgps_cflags=""
+with_libgps_ldflags=""
+AC_ARG_WITH(libgps, [AS_HELP_STRING([--with-libgps@<:@=PREFIX@:>@], [Path to libgps.])],
+[
+ if test "x$withval" != "xno" && test "x$withval" != "xyes"
+ then
+ with_libgps_cflags="-I$withval/include"
+ with_libgps_ldflags="-L$withval/lib"
+ with_libgps="yes"
+ else
+ with_libgps="$withval"
+ fi
+],
+[
+ with_libgps="yes"
+])
+if test "x$with_libgps" = "xyes"
+then
+ SAVE_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $with_libgps_cflags"
+
+ AC_CHECK_HEADERS(gps.h, [with_libgps="yes"], [with_libgps="no (gps.h not found)"])
+
+ CFLAGS="$SAVE_CFLAGS"
+fi
+if test "x$with_libgps" = "xyes"
+then
+ SAVE_CFLAGS="$CFLAGS"
+ SAVE_LDFLAGS="$LDFLAGS"
+ CFLAGS="$CFLAGS $with_libgps_cflags"
+ LDFLAGS="$LDFLAGS $with_libgps_ldflags"
+
+ AC_CHECK_LIB(gps, gps_open, [with_libgps="yes"], [with_libgps="no (symbol gps_open not found)"])
+
+ CFLAGS="$SAVE_CFLAGS"
+ LDFLAGS="$SAVE_LDFLAGS"
+fi
+if test "x$with_libgps" = "xyes"
+then
+ BUILD_WITH_LIBGPS_CFLAGS="$with_libgps_cflags"
+ BUILD_WITH_LIBGPS_LDFLAGS="$with_libgps_ldflags"
+ BUILD_WITH_LIBGPS_LIBS="-lgps"
+ AC_SUBST(BUILD_WITH_LIBGPS_CFLAGS)
+ AC_SUBST(BUILD_WITH_LIBGPS_LDFLAGS)
+ AC_SUBST(BUILD_WITH_LIBGPS_LIBS)
+fi
+AM_CONDITIONAL(BUILD_WITH_LIBGPS, test "x$with_libgps" = "xyes")
+# }}}
+
# --with-libgrpc++ {{{
with_libgrpcpp_cppflags=""
with_libgrpcpp_ldflags=""
plugin_ethstat="no"
plugin_fhcount="no"
plugin_fscache="no"
+plugin_gps="no"
plugin_grpc="no"
plugin_interface="no"
plugin_ipmi="no"
plugin_interface="yes"
fi
+if test "x$with_libgps" = "xyes"
+then
+ plugin_gps="yes"
+fi
+
if test "x$have_getloadavg" = "xyes"
then
plugin_load="yes"
AC_PLUGIN([filecount], [yes], [Count files in directories])
AC_PLUGIN([fscache], [$plugin_fscache], [fscache statistics])
AC_PLUGIN([gmond], [$with_libganglia], [Ganglia plugin])
+AC_PLUGIN([gps], [$plugin_gps], [GPS plugin])
AC_PLUGIN([grpc], [$plugin_grpc], [gRPC plugin])
AC_PLUGIN([hddtemp], [yes], [Query hddtempd])
AC_PLUGIN([interface], [$plugin_interface], [Interface traffic statistics])
AC_MSG_RESULT([ libesmtp . . . . . . $with_libesmtp])
AC_MSG_RESULT([ libganglia . . . . . $with_libganglia])
AC_MSG_RESULT([ libgcrypt . . . . . . $with_libgcrypt])
+AC_MSG_RESULT([ libgps . . . . . . . $with_libgps])
AC_MSG_RESULT([ libgrpc++ . . . . . . $with_libgrpcpp])
AC_MSG_RESULT([ libhal . . . . . . . $with_libhal])
AC_MSG_RESULT([ libhiredis . . . . . $with_libhiredis])
AC_MSG_RESULT([ filecount . . . . . . $enable_filecount])
AC_MSG_RESULT([ fscache . . . . . . . $enable_fscache])
AC_MSG_RESULT([ gmond . . . . . . . . $enable_gmond])
+AC_MSG_RESULT([ gps . . . . . . . . . $enable_gps])
AC_MSG_RESULT([ grpc . . . . . . . . $enable_grpc])
AC_MSG_RESULT([ hddtemp . . . . . . . $enable_hddtemp])
AC_MSG_RESULT([ interface . . . . . . $enable_interface])
--- /dev/null
+/**
+ * collectd - src/gps.c
+ * Copyright (C) 2015 Nicolas JOURDEN
+ *
+ * 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:
+ * Nicolas JOURDEN <nicolas.jourden at laposte.net>
+ * Florian octo Forster <octo at collectd.org>
+ * Marc Fournier <marc.fournier at camptocamp.com>
+ **/
+
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+#include "utils_time.h"
+#include "configfile.h"
+
+#define CGPS_TRUE 1
+#define CGPS_FALSE 0
+#define CGPS_DEFAULT_HOST "localhost"
+#define CGPS_DEFAULT_PORT "2947" /* DEFAULT_GPSD_PORT */
+#define CGPS_DEFAULT_TIMEOUT MS_TO_CDTIME_T (15)
+#define CGPS_DEFAULT_PAUSE_CONNECT TIME_T_TO_CDTIME_T (5)
+#define CGPS_MAX_ERROR 100
+#define CGPS_CONFIG "?WATCH={\"enable\":true,\"json\":true,\"nmea\":false}\r\n"
+
+#include <gps.h>
+#include <pthread.h>
+
+typedef struct {
+ char *host;
+ char *port;
+ cdtime_t timeout;
+ cdtime_t pause_connect;
+} cgps_config_t;
+
+typedef struct {
+ gauge_t sats_used;
+ gauge_t sats_visible;
+ gauge_t hdop;
+ gauge_t vdop;
+} cgps_data_t;
+
+static cgps_config_t cgps_config_data;
+
+static cgps_data_t cgps_data = {NAN, NAN, NAN, NAN};
+
+static pthread_t cgps_thread_id;
+static pthread_mutex_t cgps_data_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t cgps_thread_lock = PTHREAD_MUTEX_INITIALIZER;
+static int cgps_thread_shutdown = CGPS_FALSE;
+static int cgps_thread_running = CGPS_FALSE;
+
+/**
+ * Non blocking pause for the thread.
+ */
+static int cgps_thread_pause(cdtime_t pTime)
+{
+ cdtime_t now;
+ now = cdtime ();
+ struct timespec pause_th;
+ CDTIME_T_TO_TIMESPEC (MS_TO_CDTIME_T(10), &pause_th);
+ while (CGPS_TRUE)
+ {
+ if ( (cdtime () - now) > pTime )
+ {
+ break;
+ }
+
+ pthread_mutex_lock (&cgps_thread_lock);
+ if (cgps_thread_shutdown == CGPS_TRUE)
+ {
+ return CGPS_FALSE;
+ }
+ pthread_mutex_unlock (&cgps_thread_lock);
+ nanosleep (&pause_th, NULL);
+ }
+
+ return CGPS_TRUE;
+}
+
+/**
+ * Thread reading from gpsd.
+ */
+static void * cgps_thread (void * pData)
+{
+ struct gps_data_t gpsd_conn;
+ unsigned int err_count;
+ cgps_thread_running = CGPS_TRUE;
+
+ while (CGPS_TRUE)
+ {
+ pthread_mutex_lock (&cgps_thread_lock);
+ if (cgps_thread_shutdown == CGPS_TRUE)
+ {
+ goto quit;
+ }
+ pthread_mutex_unlock (&cgps_thread_lock);
+
+ err_count = 0;
+
+#if GPSD_API_MAJOR_VERSION > 4
+ int status = gps_open (cgps_config_data.host, cgps_config_data.port, &gpsd_conn);
+#else
+ int status = gps_open_r (cgps_config_data.host, cgps_config_data.port, &gpsd_conn);
+#endif
+ if (status < 0)
+ {
+ WARNING ("gps plugin: connecting to %s:%s failed: %s",
+ cgps_config_data.host, cgps_config_data.port, gps_errstr (status));
+
+ // Here we make a pause until a new tentative to connect, we check also if
+ // the thread does not need to stop.
+ if (cgps_thread_pause(cgps_config_data.pause_connect) == CGPS_FALSE)
+ {
+ goto quit;
+ }
+
+ continue;
+ }
+
+ gps_stream (&gpsd_conn, WATCH_ENABLE | WATCH_JSON | WATCH_NEWSTYLE, NULL);
+ gps_send (&gpsd_conn, CGPS_CONFIG);
+
+ while (CGPS_TRUE)
+ {
+ pthread_mutex_lock (&cgps_thread_lock);
+ if (cgps_thread_shutdown == CGPS_TRUE)
+ {
+ goto stop;
+ }
+ pthread_mutex_unlock (&cgps_thread_lock);
+
+#if GPSD_API_MAJOR_VERSION > 4
+ long timeout_us = CDTIME_T_TO_US (cgps_config_data.timeout);
+ if (!gps_waiting (&gpsd_conn, (int) timeout_us ))
+#else
+ if (!gps_waiting (&gpsd_conn))
+#endif
+ {
+ continue;
+ }
+
+ if (gps_read (&gpsd_conn) == -1)
+ {
+ WARNING ("gps plugin: incorrect data! (err_count: %d)", err_count);
+ err_count++;
+
+ if (err_count > CGPS_MAX_ERROR)
+ {
+ // Server is not responding ...
+ if (gps_send (&gpsd_conn, CGPS_CONFIG) == -1)
+ {
+ WARNING ("gps plugin: gpsd seems to be down, reconnecting");
+ gps_close (&gpsd_conn);
+ break;
+ }
+ // Server is responding ...
+ else
+ {
+ err_count = 0;
+ }
+ }
+
+ continue;
+ }
+
+ pthread_mutex_lock (&cgps_data_lock);
+
+ // Number of sats in view:
+ cgps_data.sats_used = (gauge_t) gpsd_conn.satellites_used;
+ cgps_data.sats_visible = (gauge_t) gpsd_conn.satellites_visible;
+
+ // dilution of precision:
+ cgps_data.vdop = NAN;
+ cgps_data.hdop = NAN;
+ if (cgps_data.sats_used > 0)
+ {
+ cgps_data.hdop = gpsd_conn.dop.hdop;
+ cgps_data.vdop = gpsd_conn.dop.vdop;
+ }
+
+ DEBUG ("gps plugin: %.0f sats used (of %.0f visible), hdop = %.3f, vdop = %.3f",
+ cgps_data.sats_used, cgps_data.sats_visible, cgps_data.hdop, cgps_data.vdop);
+
+ pthread_mutex_unlock (&cgps_data_lock);
+ }
+ }
+
+stop:
+ DEBUG ("gps plugin: thread closing gpsd connection ... ");
+ gps_stream (&gpsd_conn, WATCH_DISABLE, NULL);
+ gps_close (&gpsd_conn);
+quit:
+ DEBUG ("gps plugin: thread shutting down ... ");
+ cgps_thread_running = CGPS_FALSE;
+ pthread_mutex_unlock (&cgps_thread_lock);
+ pthread_exit (NULL);
+}
+
+
+/**
+ * Submit a piece of the data.
+ */
+static void cgps_submit (const char *type, gauge_t value, const char *type_instance)
+{
+ value_t values[1];
+ value_list_t vl = VALUE_LIST_INIT;
+
+ values[0].gauge = value;
+
+ vl.values = values;
+ vl.values_len = 1;
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "gps", sizeof (vl.plugin));
+ sstrncpy (vl.type, type, sizeof (vl.type));
+ sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+
+ plugin_dispatch_values (&vl);
+}
+
+/**
+ * Read the data and submit by piece.
+ */
+static int cgps_read ()
+{
+ cgps_data_t data_copy;
+
+ pthread_mutex_lock (&cgps_data_lock);
+ data_copy = cgps_data;
+ pthread_mutex_unlock (&cgps_data_lock);
+
+ cgps_submit ("dilution_of_precision", data_copy.hdop, "horizontal");
+ cgps_submit ("dilution_of_precision", data_copy.vdop, "vertical");
+ cgps_submit ("satellites", data_copy.sats_used, "used");
+ cgps_submit ("satellites", data_copy.sats_visible, "visible");
+
+ return (0);
+}
+
+/**
+ * Read configuration.
+ */
+static int cgps_config (oconfig_item_t *ci)
+{
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("Host", child->key) == 0)
+ cf_util_get_string (child, &cgps_config_data.host);
+ else if (strcasecmp ("Port", child->key) == 0)
+ cf_util_get_service (child, &cgps_config_data.port);
+ else if (strcasecmp ("Timeout", child->key) == 0)
+ cf_util_get_cdtime (child, &cgps_config_data.timeout);
+ else if (strcasecmp ("PauseConnect", child->key) == 0)
+ cf_util_get_cdtime (child, &cgps_config_data.pause_connect);
+ else
+ WARNING ("gps plugin: Ignoring unknown config option \"%s\".", child->key);
+ }
+
+ // Controlling the value for timeout:
+ // If set too high it blocks the reading (> 5 s), too low it gets not reading (< 500 us).
+ // To avoid any issues we replace "out of range" value by the default value.
+ if (
+ cgps_config_data.timeout > TIME_T_TO_CDTIME_T(5)
+ ||
+ cgps_config_data.timeout < US_TO_CDTIME_T(500)
+ )
+ {
+ WARNING ("gps plugin: timeout set to %.6f sec. setting to default (%.6f).",
+ CDTIME_T_TO_DOUBLE(cgps_config_data.timeout),
+ CDTIME_T_TO_DOUBLE(CGPS_DEFAULT_TIMEOUT)
+ );
+ cgps_config_data.timeout = CGPS_DEFAULT_TIMEOUT;
+ }
+
+ return (0);
+}
+
+/**
+ * Init.
+ */
+static int cgps_init (void)
+{
+ int status;
+
+ if (cgps_thread_running == CGPS_TRUE)
+ {
+ DEBUG ("gps plugin: error gps thread already running ... ");
+ return 0;
+ }
+
+ DEBUG ("gps plugin: config{host: \"%s\", port: \"%s\", timeout: %.6f sec., pause connect: %.3f sec.}",
+ cgps_config_data.host, cgps_config_data.port,
+ CDTIME_T_TO_DOUBLE (cgps_config_data.timeout),
+ CDTIME_T_TO_DOUBLE (cgps_config_data.pause_connect));
+
+ status = plugin_thread_create (&cgps_thread_id, NULL, cgps_thread, NULL);
+ if (status != 0)
+ {
+ ERROR ("gps plugin: pthread_create() failed.");
+ return (-1);
+ }
+
+ return (0);
+}
+
+/**
+ * Shutdown.
+ */
+static int cgps_shutdown (void)
+{
+ void * res;
+
+ pthread_mutex_lock (&cgps_thread_lock);
+ cgps_thread_shutdown = CGPS_TRUE;
+ pthread_mutex_unlock (&cgps_thread_lock);
+
+ pthread_join(cgps_thread_id, &res);
+ free(res);
+
+ // Clean mutex:
+ pthread_mutex_unlock(&cgps_thread_lock);
+ pthread_mutex_destroy(&cgps_thread_lock);
+ pthread_mutex_unlock(&cgps_data_lock);
+ pthread_mutex_destroy(&cgps_data_lock);
+
+ sfree (cgps_config_data.port);
+ sfree (cgps_config_data.host);
+
+ return (0);
+}
+
+/**
+ * Register the module.
+ */
+void module_register (void)
+{
+ cgps_config_data.host = sstrdup (CGPS_DEFAULT_HOST);
+ cgps_config_data.port = sstrdup (CGPS_DEFAULT_PORT);
+ cgps_config_data.timeout = CGPS_DEFAULT_TIMEOUT;
+ cgps_config_data.pause_connect = CGPS_DEFAULT_PAUSE_CONNECT;
+
+ plugin_register_complex_config ("gps", cgps_config);
+ plugin_register_init ("gps", cgps_init);
+ plugin_register_read ("gps", cgps_read);
+ plugin_register_shutdown ("gps", cgps_shutdown);
+}
projects / collectd.git / commitdiff