From 27ee1b988a465e5f89e8a9234f4a01c34cab4387 Mon Sep 17 00:00:00 2001 From: wangshouping Date: Mon, 27 Apr 2020 08:53:18 -0400 Subject: [PATCH] print main queue info to journal when receive USR1 signal Signed-off-by: wangshouping V-2: add macro control for systemd/sd-journal.h Signed-off-by: pengyi37 --- tools/rsyslogd.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/tools/rsyslogd.c b/tools/rsyslogd.c index f1eea07..657f4de 100644 --- a/tools/rsyslogd.c +++ b/tools/rsyslogd.c @@ -36,6 +36,7 @@ #endif #ifdef HAVE_LIBSYSTEMD # include +# include #endif #include "rsyslog.h" @@ -180,6 +181,7 @@ void rsyslogdDoDie(int sig); /* global data items */ static int bChildDied; static int bHadHUP; +static int g_bRecordQueue; static int doFork = 1; /* fork - run in daemon mode - read-only after startup */ int bFinished = 0; /* used by termination signal handler, read-only except there * is either 0 or the number of the signal that requested the @@ -1269,8 +1271,13 @@ rsyslogdDebugSwitch(void) dbgprintf("\n"); debugging_on = 0; } + } +static void RsyslogdDebugQueue(void) +{ + g_bRecordQueue = 1; +} /* This is the main entry point into rsyslogd. Over time, we should try to * modularize it a bit more... @@ -1618,7 +1625,7 @@ initAll(int argc, char **argv) hdlr_enable(SIGINT, rsyslogdDoDie); hdlr_enable(SIGQUIT, rsyslogdDoDie); } else { - hdlr_enable(SIGUSR1, SIG_IGN); + hdlr_enable(SIGUSR1, RsyslogdDebugQueue); hdlr_enable(SIGINT, SIG_IGN); hdlr_enable(SIGQUIT, SIG_IGN); } @@ -1956,6 +1963,7 @@ mainloop(void) sigaddset(&sigblockset, SIGTERM); sigaddset(&sigblockset, SIGCHLD); sigaddset(&sigblockset, SIGHUP); + sigaddset(&sigblockset, SIGUSR1); do { processImInternal(); @@ -1970,6 +1978,15 @@ mainloop(void) doHUP(); bHadHUP = 0; } + if (g_bRecordQueue) { + if (pMsgQueue != NULL) { + sd_journal_print(LOG_NOTICE, "main queue size information: current QueueSize=%d MaxQueueSize=%d\n", + pMsgQueue->iQueueSize, pMsgQueue->iMaxQueueSize); + } else { + sd_journal_print(LOG_NOTICE, "main queue size information: pMsgQueue is NULL!\n"); + } + g_bRecordQueue = 0; + } if(bFinished) break; /* exit as quickly as possible */ -- 2.23.0