# protobuf stuff:
src/*.pb-c.[ch]
+src/*.grpc.pb.cc
+src/*.pb.cc
+src/*.pb.h
# make dist stuff:
/collectd-*.tar.gz
SUBDIRS += libltdl
endif
-SUBDIRS += src bindings .
+SUBDIRS += proto src bindings .
AM_CPPFLAGS = $(LTDLINCL)
# Checks for programs.
#
AC_PROG_CC
+AC_PROG_CXX
AC_PROG_CPP
AC_PROG_EGREP
AC_PROG_INSTALL
AC_MSG_ERROR([bison is missing and you do not have ${srcdir}/src/liboconfig/parser.c. Please install bison])
fi
+AC_PATH_PROG([PROTOC], [protoc])
+have_protoc3="no"
+if test "x$PROTOC" != "x"; then
+ AC_MSG_CHECKING([for protoc 3.0.0+])
+ if $PROTOC --version | grep -q libprotoc.3; then
+ protoc3="yes (`$PROTOC --version`)"
+ have_protoc3="yes"
+ else
+ protoc3="no (`$PROTOC --version`)"
+ fi
+ AC_MSG_RESULT([$protoc3])
+fi
+AC_SUBST([PROTOC])
+AM_CONDITIONAL(HAVE_PROTOC3, test "x$have_protoc3" = "xyes")
+
+AC_PATH_PROG([GRPC_CPP_PLUGIN], [grpc_cpp_plugin])
+AC_SUBST([GRPC_CPP_PLUGIN])
+AM_CONDITIONAL(HAVE_GRPC_CPP, test "x$GRPC_CPP_PLUGIN" != "x")
+
AC_CHECK_PROG([have_protoc_c], [protoc-c], [yes], [no])
if test "x$have_protoc_c" = "xno"
then
AC_FUNC_STRERROR_R
+test_cxx_flags() {
+ AC_LANG_PUSH(C++)
+ AC_LANG_CONFTEST([int main(void){}])
+ $CXX -c conftest.cpp $CXXFLAGS $@ > /dev/null 2> /dev/null
+ ret=$?
+ rm -f conftest.o
+ AC_LANG_POP(C++)
+ return $ret
+}
+
SAVE_CFLAGS="$CFLAGS"
# Emulate behavior of src/Makefile.am
if test "x$GCC" = "xyes"
AM_CONDITIONAL(BUILD_WITH_LIBGCRYPT, test "x$with_libgcrypt" = "xyes")
# }}}
+# --with-grpc {{{
+AC_ARG_WITH(grpc, [AS_HELP_STRING([--without-grpc], [Disable gRPC (default: autodetect).])],
+[
+ with_grpc="$withval"
+],
+[
+ with_grpc="yes"
+])
+
+if test "x$with_grpc" = "xyes"
+then
+ if test "x$have_protoc3" != "xyes"
+ then
+ with_grpc="no (requires protoc 3.0.0+)"
+ else if test "x$GRPC_CPP_PLUGIN" = "x"
+ then
+ with_grpc"no (requires grpc_cpp_plugin)"
+ fi; fi
+fi
+
+if test "x$with_grpc" = "xyes"
+then
+ AC_MSG_CHECKING([whether $CXX accepts -std=c++11])
+ if test_cxx_flags -std=c++11; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ with_grpc="no (requires C++11 support)"
+ fi
+fi
+
+if test "x$with_grpc" = "xyes"
+then
+ AC_LANG_PUSH(C++)
+ SAVE_CPPFLAGS="$CPPFLAGS"
+ SAVE_CXXFLAGS="$CXXFLAGS"
+ CPPFLAGS="$CPPFLAGS -std=c++11"
+ CXXFLAGS="$CXXFLAGS -std=c++11"
+ AC_CHECK_HEADERS([grpc++/grpc++.h], [],
+ [with_grpc="no (grpc++/grpc++.h not found)"])
+ CPPFLAGS="$SAVE_CPPFLAGS"
+ CXXFLAGS="$SAVE_CXXFLAGS"
+ AC_LANG_POP(C++)
+fi
+with_libgrpc="no"
+if test "x$with_grpc" = "xyes"
+then
+ AC_LANG_PUSH(C++)
+ AC_CHECK_LIB([grpc], [grpc_register_plugin],
+ [with_libgrpc="yes"],
+ [with_grpc="no (libgrpc not found)"],
+ [-lgpr -lprotobuf])
+ AC_LANG_POP(C++)
+fi
+# }}}
+
# --with-libiptc {{{
AC_ARG_WITH(libiptc, [AS_HELP_STRING([--with-libiptc@<:@=PREFIX@:>@], [Path to libiptc.])],
[
then
enable_plugin="yes"
else
- enable_plugin="no"
+ enable_plugin="$2"
fi
else
enable_plugin="$enable_all_plugins"
fi
else # User passed "yes" but dependency checking yielded "no" => Dependency problem.
dependency_error="yes"
- enable_plugin="no (dependency error)"
+ enable_plugin="$2 (dependency error)"
fi
fi
AM_CONDITIONAL([BUILD_PLUGIN_]my_toupper([$1]), test "x$enable_plugin" = "xyes")
AC_PLUGIN([filecount], [yes], [Count files in directories])
AC_PLUGIN([fscache], [$plugin_fscache], [fscache statistics])
AC_PLUGIN([gmond], [$with_libganglia], [Ganglia plugin])
+AC_PLUGIN([grpc], [$with_grpc], [gRPC plugin])
AC_PLUGIN([hddtemp], [yes], [Query hddtempd])
AC_PLUGIN([interface], [$plugin_interface], [Interface traffic statistics])
AC_PLUGIN([ipc], [$plugin_ipc], [IPC statistics])
AC_CONFIG_FILES(src/libcollectdclient/collectd/lcc_features.h)
AM_CFLAGS="-Wall"
+AM_CXXFLAGS="-Wall"
if test "x$enable_werror" != "xno"
then
AM_CFLAGS="$AM_CFLAGS -Werror"
+ AM_CXXFLAGS="$AM_CFLAGS -Werror"
fi
AC_SUBST([AM_CFLAGS])
+AC_SUBST([AM_CXXFLAGS])
-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_CONFIG_FILES([Makefile proto/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" \
Platform . . . . . . $ac_system
CC . . . . . . . . . $CC
CFLAGS . . . . . . . $AM_CFLAGS $CFLAGS
+ CXXFLAGS . . . . . . $AM_CXXFLAGS $CXXFLAGS
CPP . . . . . . . . . $CPP
CPPFLAGS . . . . . . $CPPFLAGS
LD . . . . . . . . . $LD
libesmtp . . . . . . $with_libesmtp
libganglia . . . . . $with_libganglia
libgcrypt . . . . . . $with_libgcrypt
+ libgrpc . . . . . . . $with_libgrpc
libhal . . . . . . . $with_libhal
libhiredis . . . . . $with_libhiredis
libi2c-dev . . . . . $with_libi2c
libyajl . . . . . . . $with_libyajl
oracle . . . . . . . $with_oracle
protobuf-c . . . . . $have_protoc_c
+ protoc 3 . . . . . . $have_protoc3
python . . . . . . . $with_python
Features:
filecount . . . . . . $enable_filecount
fscache . . . . . . . $enable_fscache
gmond . . . . . . . . $enable_gmond
+ grpc . . . . . . . . $enable_grpc
hddtemp . . . . . . . $enable_hddtemp
interface . . . . . . $enable_interface
ipc . . . . . . . . . $enable_ipc
--- /dev/null
+EXTRA_DIST = collectd.proto types.proto
--- /dev/null
+// collectd - proto/collectd.proto
+// Copyright (C) 2015 Sebastian Harl
+//
+// 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:
+// Sebastian Harl <sh at tokkee.org>
+
+syntax = "proto3";
+
+package collectd;
+
+import "types.proto";
+
+service Collectd {
+ // Dispatch collected values to collectd.
+ rpc DispatchValues(DispatchValuesRequest) returns (DispatchValuesReply);
+}
+
+// The arguments to DispatchValues.
+message DispatchValuesRequest {
+ collectd.types.ValueList values = 1;
+}
+
+// The response from DispatchValues.
+message DispatchValuesReply {
+}
--- /dev/null
+// collectd - proto/types.proto
+// Copyright (C) 2015 Sebastian Harl
+//
+// 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:
+// Sebastian Harl <sh at tokkee.org>
+
+syntax = "proto3";
+
+package collectd.types;
+
+import "google/protobuf/duration.proto";
+import "google/protobuf/timestamp.proto";
+
+message Value {
+ oneof value {
+ uint64 counter = 1;
+ double gauge = 2;
+ int64 derive = 3;
+ uint64 absolute = 4;
+ };
+}
+
+message ValueList {
+ repeated Value value = 1;
+
+ google.protobuf.Timestamp time = 2;
+ google.protobuf.Duration interval = 3;
+
+ string host = 4;
+ string plugin = 5;
+ string plugin_instance = 6;
+ string type = 7;
+ string type_instance = 8;
+}
AM_CPPFLAGS += -DPLUGINDIR='"${pkglibdir}"'
AM_CPPFLAGS += -DPKGDATADIR='"${pkgdatadir}"'
+AUTOMAKE_OPTIONS = subdir-objects
+
+V_PROTOC = $(v_protoc_@AM_V@)
+v_protoc_ = $(v_protoc_@AM_DEFAULT_V@)
+v_protoc_0 = @echo " PROTOC " $@;
+
noinst_LTLIBRARIES =
check_PROGRAMS =
TESTS =
BUILT_SOURCES =
CLEANFILES =
+if HAVE_PROTOC3
+if HAVE_GRPC_CPP
+BUILT_SOURCES += collectd.grpc.pb.cc collectd.pb.cc types.pb.cc
+CLEANFILES += collectd.grpc.pb.cc collectd.pb.cc types.pb.cc \
+ collectd.grpc.pb.h collectd.pb.h types.pb.h
+
+collectd.grpc.pb.cc: $(top_srcdir)/proto/collectd.proto $(top_srcdir)/proto/types.proto
+ $(V_PROTOC)@PROTOC@ -I$(top_srcdir)/proto \
+ --grpc_out=$(builddir) --plugin=protoc-gen-grpc=$(GRPC_CPP_PLUGIN) $<
+
+collectd.pb.cc: $(top_srcdir)/proto/collectd.proto $(top_srcdir)/proto/types.proto
+ $(V_PROTOC)@PROTOC@ -I$(top_srcdir)/proto --cpp_out=$(builddir) $<
+
+types.pb.cc: $(top_srcdir)/proto/types.proto
+ $(V_PROTOC)@PROTOC@ -I$(top_srcdir)/proto --cpp_out=$(builddir) $<
+endif
+endif
+
if BUILD_PLUGIN_AGGREGATION
pkglib_LTLIBRARIES += aggregation.la
aggregation_la_SOURCES = aggregation.c \
gmond_la_LIBADD = $(GANGLIA_LIBS)
endif
+if BUILD_PLUGIN_GRPC
+pkglib_LTLIBRARIES += grpc.la
+grpc_la_SOURCES = grpc.cc \
+ collectd.grpc.pb.cc collectd.pb.cc types.pb.cc
+grpc_la_CPPFLAGS = $(AM_CPPFLAGS) -std=c++11
+grpc_la_CFLAGS = $(AM_CFLAGS)
+grpc_la_CXXFLAGS = $(AM_CXXFLAGS) -std=c++11
+grpc_la_LDFLAGS = $(PLUGIN_LDFLAGS)
+grpc_la_LIBADD = -lgrpc++_unsecure -lgrpc -lgpr -lprotobuf -lpthread -ldl
+endif
+
if BUILD_PLUGIN_HDDTEMP
pkglib_LTLIBRARIES += hddtemp.la
hddtemp_la_SOURCES = hddtemp.c
#endif
#ifndef COLLECTD_USERAGENT
- # define COLLECTD_USERAGENT PACKAGE_NAME"/"PACKAGE_VERSION
+ # define COLLECTD_USERAGENT PACKAGE_NAME "/" PACKAGE_VERSION
#endif
/* Only enable __attribute__() for compilers known to support it. */
--- /dev/null
+/**
+ * collectd - src/grpc.cc
+ * Copyright (C) 2015 Sebastian Harl
+ *
+ * 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:
+ * Sebastian Harl <sh at tokkee.org>
+ **/
+
+#include <grpc++/grpc++.h>
+#include <google/protobuf/util/time_util.h>
+
+#include "collectd.grpc.pb.h"
+
+extern "C" {
+#include <stdbool.h>
+#include <pthread.h>
+
+#include "collectd.h"
+#include "common.h"
+#include "configfile.h"
+#include "plugin.h"
+}
+
+using google::protobuf::util::TimeUtil;
+
+/*
+ * proto conversion
+ */
+
+static grpc::Status unmarshal_value_list(const collectd::types::ValueList &msg, value_list_t *vl)
+{
+ vl->time = NS_TO_CDTIME_T(TimeUtil::TimestampToNanoseconds(msg.time()));
+ vl->interval = NS_TO_CDTIME_T(TimeUtil::DurationToNanoseconds(msg.interval()));
+
+ std::string s;
+
+ s = msg.host();
+ if (!s.length())
+ return grpc::Status(grpc::StatusCode::INVALID_ARGUMENT,
+ grpc::string("missing host name"));
+ sstrncpy(vl->host, s.c_str(), sizeof(vl->host));
+
+ s = msg.plugin();
+ if (!s.length())
+ return grpc::Status(grpc::StatusCode::INVALID_ARGUMENT,
+ grpc::string("missing plugin name"));
+ sstrncpy(vl->plugin, s.c_str(), sizeof(vl->plugin));
+
+ s = msg.type();
+ if (!s.length())
+ return grpc::Status(grpc::StatusCode::INVALID_ARGUMENT,
+ grpc::string("missing type name"));
+ sstrncpy(vl->type, s.c_str(), sizeof(vl->type));
+
+ s = msg.plugin_instance();
+ if (s.length())
+ sstrncpy(vl->plugin_instance, s.c_str(), sizeof(vl->plugin_instance));
+
+ s = msg.type_instance();
+ if (s.length())
+ sstrncpy(vl->type_instance, s.c_str(), sizeof(vl->type_instance));
+
+ value_t *values = NULL;
+ size_t values_len = 0;
+ auto status = grpc::Status::OK;
+
+ for (auto v : msg.value()) {
+ value_t *val = (value_t *)realloc(values, (values_len + 1) * sizeof(*values));
+ if (!val) {
+ status = grpc::Status(grpc::StatusCode::RESOURCE_EXHAUSTED,
+ grpc::string("failed to allocate values array"));
+ break;
+ }
+
+ values = val;
+ val = values + values_len;
+ values_len++;
+
+ switch (v.value_case()) {
+ case collectd::types::Value::ValueCase::kCounter:
+ val->counter = counter_t(v.counter());
+ break;
+ case collectd::types::Value::ValueCase::kGauge:
+ val->gauge = gauge_t(v.gauge());
+ break;
+ case collectd::types::Value::ValueCase::kDerive:
+ val->derive = derive_t(v.derive());
+ break;
+ case collectd::types::Value::ValueCase::kAbsolute:
+ val->absolute = absolute_t(v.absolute());
+ break;
+ default:
+ status = grpc::Status(grpc::StatusCode::INVALID_ARGUMENT,
+ grpc::string("unkown value type"));
+ break;
+ }
+
+ if (!status.ok())
+ break;
+ }
+ if (status.ok()) {
+ vl->values = values;
+ vl->values_len = values_len;
+ }
+ else if (values) {
+ free(values);
+ }
+
+ return status;
+} /* unmarshal_value_list() */
+
+/*
+ * request call objects
+ */
+
+class Call
+{
+public:
+ Call(collectd::Collectd::AsyncService *service, grpc::ServerCompletionQueue *cq)
+ : service_(service), cq_(cq), status_(CREATE)
+ { }
+
+ virtual ~Call()
+ { }
+
+ void Handle()
+ {
+ if (status_ == CREATE) {
+ Create();
+ status_ = PROCESS;
+ }
+ else if (status_ == PROCESS) {
+ Process();
+ status_ = FINISH;
+ }
+ else {
+ GPR_ASSERT(status_ == FINISH);
+ Finish();
+ }
+ } /* Handle() */
+
+protected:
+ virtual void Create() = 0;
+ virtual void Process() = 0;
+ virtual void Finish() = 0;
+
+ collectd::Collectd::AsyncService *service_;
+ grpc::ServerCompletionQueue *cq_;
+ grpc::ServerContext ctx_;
+
+private:
+ enum CallStatus { CREATE, PROCESS, FINISH };
+ CallStatus status_;
+}; /* class Call */
+
+class DispatchValuesCall : public Call
+{
+public:
+ DispatchValuesCall(collectd::Collectd::AsyncService *service, grpc::ServerCompletionQueue *cq)
+ : Call(service, cq), responder_(&ctx_)
+ {
+ Handle();
+ } /* DispatchValuesCall() */
+
+ virtual ~DispatchValuesCall()
+ { }
+
+private:
+ void Create()
+ {
+ service_->RequestDispatchValues(&ctx_, &request_, &responder_, cq_, cq_, this);
+ } /* Create() */
+
+ void Process()
+ {
+ // Add a new request object to the queue.
+ new DispatchValuesCall(service_, cq_);
+
+ value_list_t vl = VALUE_LIST_INIT;
+ auto status = unmarshal_value_list(request_.values(), &vl);
+ if (!status.ok()) {
+ responder_.Finish(reply_, status, this);
+ return;
+ }
+
+ if (plugin_dispatch_values(&vl))
+ status = grpc::Status(grpc::StatusCode::INTERNAL,
+ grpc::string("failed to enqueue values for writing"));
+
+ responder_.Finish(reply_, status, this);
+ } /* Process() */
+
+ void Finish()
+ {
+ delete this;
+ } /* Finish() */
+
+ collectd::DispatchValuesRequest request_;
+ collectd::DispatchValuesReply reply_;
+
+ grpc::ServerAsyncResponseWriter<collectd::DispatchValuesReply> responder_;
+};
+
+/*
+ * gRPC server implementation
+ */
+
+class CollectdServer final
+{
+public:
+ void Start()
+ {
+ // TODO: make configurable
+ std::string addr("0.0.0.0:50051");
+
+ // TODO: make configurable
+ auto auth = grpc::InsecureServerCredentials();
+
+ grpc::ServerBuilder builder;
+ builder.AddListeningPort(addr, auth);
+ builder.RegisterAsyncService(&service_);
+ cq_ = builder.AddCompletionQueue();
+ server_ = builder.BuildAndStart();
+
+ INFO("grpc: Listening on %s", addr.c_str());
+ } /* Start() */
+
+ void Shutdown()
+ {
+ server_->Shutdown();
+ cq_->Shutdown();
+ } /* Shutdown() */
+
+ void Mainloop()
+ {
+ // Register request types.
+ new DispatchValuesCall(&service_, cq_.get());
+
+ while (true) {
+ void *req = NULL;
+ bool ok = false;
+
+ if (!cq_->Next(&req, &ok))
+ break; // Queue shut down.
+ if (!ok) {
+ ERROR("grpc: Failed to read from queue");
+ break;
+ }
+
+ static_cast<Call *>(req)->Handle();
+ }
+ } /* Mainloop() */
+
+private:
+ collectd::Collectd::AsyncService service_;
+
+ std::unique_ptr<grpc::Server> server_;
+ std::unique_ptr<grpc::ServerCompletionQueue> cq_;
+}; /* class CollectdServer */
+
+static CollectdServer *server = nullptr;
+
+/*
+ * collectd plugin interface
+ */
+
+extern "C" {
+ static pthread_t *workers;
+ static size_t workers_num;
+
+ static void *worker_thread(void *arg)
+ {
+ CollectdServer *s = (CollectdServer *)arg;
+ s->Mainloop();
+ return NULL;
+ } /* worker_thread() */
+
+ static int c_grpc_init(void)
+ {
+ server = new CollectdServer();
+ size_t i;
+
+ if (! server) {
+ ERROR("grpc: Failed to create server");
+ return -1;
+ }
+
+ workers = (pthread_t *)calloc(5, sizeof(*workers));
+ if (! workers) {
+ delete server;
+ server = nullptr;
+
+ ERROR("grpc: Failed to allocate worker threads");
+ return -1;
+ }
+ workers_num = 5;
+
+ server->Start();
+ for (i = 0; i < workers_num; i++) {
+ pthread_create(&workers[i], /* attr = */ NULL,
+ worker_thread, server);
+ }
+ INFO("grpc: Started %zu workers", workers_num);
+ return 0;
+ } /* c_grpc_init() */
+
+ static int c_grpc_shutdown(void)
+ {
+ size_t i;
+
+ if (!server)
+ return -1;
+
+ server->Shutdown();
+
+ INFO("grpc: Waiting for %zu workers to terminate", workers_num);
+ for (i = 0; i < workers_num; i++)
+ pthread_join(workers[i], NULL);
+ free(workers);
+ workers = NULL;
+ workers_num = 0;
+
+ delete server;
+ server = nullptr;
+
+ return 0;
+ } /* c_grpc_shutdown() */
+
+ void module_register(void)
+ {
+ plugin_register_init("grpc", c_grpc_init);
+ plugin_register_shutdown("grpc", c_grpc_shutdown);
+ } /* module_register() */
+} /* extern "C" */
+
+/* vim: set sw=4 ts=4 tw=78 noexpandtab : */
projects / collectd.git / commitdiff