From 0bdeb5e58d8fdf8b0f30461a388768112b0e080c Mon Sep 17 00:00:00 2001 From: David Lamparter Date: Sat, 6 May 2017 06:40:17 +0200 Subject: lib: rewrite zlog lock-free & TLS-buffered This is a full rewrite of the "back end" logging code. It now uses a lock-free list to iterate over logging targets, and the targets themselves are as lock-free as possible. (syslog() may have a hidden internal mutex in the C library; the file/fd targets use a single write() call which should ensure atomicity kernel-side.) Note that some functionality is lost in this patch: - Solaris printstack() backtraces are ditched (unlikely to come back) - the `log-filter` machinery is gone (re-added in followup commit) - `terminal monitor` is temporarily stubbed out. The old code had a race condition with VTYs going away. It'll likely come back rewritten and with vtysh support. - The `zebra_ext_log` hook is gone. Instead, it's now much easier to add a "proper" logging target. v2: TLS buffer to get some actual performance Signed-off-by: David Lamparter --- lib/grammar_sandbox_main.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'lib/grammar_sandbox_main.c') diff --git a/lib/grammar_sandbox_main.c b/lib/grammar_sandbox_main.c index 5d3f6675a3..6a28580925 100644 --- a/lib/grammar_sandbox_main.c +++ b/lib/grammar_sandbox_main.c @@ -45,11 +45,7 @@ int main(int argc, char **argv) master = thread_master_create(NULL); - openzlog("grammar_sandbox", "NONE", 0, LOG_CONS | LOG_NDELAY | LOG_PID, - LOG_DAEMON); - zlog_set_level(ZLOG_DEST_SYSLOG, ZLOG_DISABLED); - zlog_set_level(ZLOG_DEST_STDOUT, LOG_DEBUG); - zlog_set_level(ZLOG_DEST_MONITOR, ZLOG_DISABLED); + zlog_aux_init("NONE: ", LOG_DEBUG); /* Library inits. */ cmd_init(1); -- cgit v1.2.3