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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-03-09 13:19:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-03-09 13:20:02 +0000 |
commit | 58daab21cd043e1dc37024a7f99b396788372918 (patch) | |
tree | 96771e43bb69f7c1c2b0b4f7374cb74d7866d0cb /collectors/systemd-journal.plugin/systemd-main.c | |
parent | Releasing debian version 1.43.2-1. (diff) | |
download | netdata-58daab21cd043e1dc37024a7f99b396788372918.tar.xz netdata-58daab21cd043e1dc37024a7f99b396788372918.zip |
Merging upstream version 1.44.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'collectors/systemd-journal.plugin/systemd-main.c')
-rw-r--r-- | collectors/systemd-journal.plugin/systemd-main.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/collectors/systemd-journal.plugin/systemd-main.c b/collectors/systemd-journal.plugin/systemd-main.c new file mode 100644 index 000000000..a3510b0ed --- /dev/null +++ b/collectors/systemd-journal.plugin/systemd-main.c @@ -0,0 +1,112 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "systemd-internals.h" +#include "libnetdata/required_dummies.h" + +#define SYSTEMD_JOURNAL_WORKER_THREADS 5 + +netdata_mutex_t stdout_mutex = NETDATA_MUTEX_INITIALIZER; +static bool plugin_should_exit = false; + +int main(int argc __maybe_unused, char **argv __maybe_unused) { + clocks_init(); + netdata_thread_set_tag("SDMAIN"); + nd_log_initialize_for_external_plugins("systemd-journal.plugin"); + + netdata_configured_host_prefix = getenv("NETDATA_HOST_PREFIX"); + if(verify_netdata_host_prefix(true) == -1) exit(1); + + // ------------------------------------------------------------------------ + // initialization + + netdata_systemd_journal_message_ids_init(); + journal_init_query_status(); + journal_init_files_and_directories(); + + // ------------------------------------------------------------------------ + // debug + + if(argc == 2 && strcmp(argv[1], "debug") == 0) { + journal_files_registry_update(); + + bool cancelled = false; + char buf[] = "systemd-journal after:-8640000 before:0 direction:backward last:200 data_only:false slice:true source:all"; + // char buf[] = "systemd-journal after:1695332964 before:1695937764 direction:backward last:100 slice:true source:all DHKucpqUoe1:PtVoyIuX.MU"; + // char buf[] = "systemd-journal after:1694511062 before:1694514662 anchor:1694514122024403"; + function_systemd_journal("123", buf, 600, &cancelled); +// function_systemd_units("123", "systemd-units", 600, &cancelled); + exit(1); + } +#ifdef ENABLE_SYSTEMD_DBUS + if(argc == 2 && strcmp(argv[1], "debug-units") == 0) { + bool cancelled = false; + function_systemd_units("123", "systemd-units", 600, &cancelled); + exit(1); + } +#endif + + // ------------------------------------------------------------------------ + // watcher thread + + netdata_thread_t watcher_thread; + netdata_thread_create(&watcher_thread, "SDWATCH", + NETDATA_THREAD_OPTION_DONT_LOG, journal_watcher_main, NULL); + + // ------------------------------------------------------------------------ + // the event loop for functions + + struct functions_evloop_globals *wg = + functions_evloop_init(SYSTEMD_JOURNAL_WORKER_THREADS, "SDJ", &stdout_mutex, &plugin_should_exit); + + functions_evloop_add_function(wg, SYSTEMD_JOURNAL_FUNCTION_NAME, function_systemd_journal, + SYSTEMD_JOURNAL_DEFAULT_TIMEOUT); + +#ifdef ENABLE_SYSTEMD_DBUS + functions_evloop_add_function(wg, SYSTEMD_UNITS_FUNCTION_NAME, function_systemd_units, + SYSTEMD_UNITS_DEFAULT_TIMEOUT); +#endif + + // ------------------------------------------------------------------------ + // register functions to netdata + + netdata_mutex_lock(&stdout_mutex); + + fprintf(stdout, PLUGINSD_KEYWORD_FUNCTION " GLOBAL \"%s\" %d \"%s\"\n", + SYSTEMD_JOURNAL_FUNCTION_NAME, SYSTEMD_JOURNAL_DEFAULT_TIMEOUT, SYSTEMD_JOURNAL_FUNCTION_DESCRIPTION); + +#ifdef ENABLE_SYSTEMD_DBUS + fprintf(stdout, PLUGINSD_KEYWORD_FUNCTION " GLOBAL \"%s\" %d \"%s\"\n", + SYSTEMD_UNITS_FUNCTION_NAME, SYSTEMD_UNITS_DEFAULT_TIMEOUT, SYSTEMD_UNITS_FUNCTION_DESCRIPTION); +#endif + + fflush(stdout); + netdata_mutex_unlock(&stdout_mutex); + + // ------------------------------------------------------------------------ + + usec_t step_ut = 100 * USEC_PER_MS; + usec_t send_newline_ut = 0; + usec_t since_last_scan_ut = SYSTEMD_JOURNAL_ALL_FILES_SCAN_EVERY_USEC * 2; // something big to trigger scanning at start + bool tty = isatty(fileno(stderr)) == 1; + + heartbeat_t hb; + heartbeat_init(&hb); + while(!plugin_should_exit) { + + if(since_last_scan_ut > SYSTEMD_JOURNAL_ALL_FILES_SCAN_EVERY_USEC) { + journal_files_registry_update(); + since_last_scan_ut = 0; + } + + usec_t dt_ut = heartbeat_next(&hb, step_ut); + since_last_scan_ut += dt_ut; + send_newline_ut += dt_ut; + + if(!tty && send_newline_ut > USEC_PER_SEC) { + send_newline_and_flush(); + send_newline_ut = 0; + } + } + + exit(0); +} |