From 72b478fbc7b5ec664d06ab18181f96c1486b2e5a Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Thu, 19 Feb 2009 17:22:44 +0100
Subject: [PATCH] Logging: Let the log level mask be configurable.

---
 cf/libucw      |  1 +
 ucw/lib.h      |  2 ++
 ucw/log-conf.c | 20 ++++++++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/cf/libucw b/cf/libucw
index 00dba877..a6f19919 100644
--- a/cf/libucw
+++ b/cf/libucw
@@ -186,6 +186,7 @@ Stream {
 	Name		logfile2
 	FileName	log/test2
 	Microseconds	1
+	Levels:reset	warn error
 }
 
 Stream {
diff --git a/ucw/lib.h b/ucw/lib.h
index 0ec02192..5167e24e 100644
--- a/ucw/lib.h
+++ b/ucw/lib.h
@@ -102,6 +102,8 @@ enum log_levels {			/** The available log levels to pass to msg() and friends. *
   L_FATAL,				// '!' - Fatal error
 };
 
+#define LOG_LEVEL_NAMES P(DEBUG) P(INFO) P(WARN) P(ERROR) P(INFO_R) P(WARN_R) P(ERROR_R) P(FATAL)
+
 #define L_SIGHANDLER 0x80000000		/** Avoid operations that are unsafe in signal handlers **/
 
 /**
diff --git a/ucw/log-conf.c b/ucw/log-conf.c
index 47feceae..6a92c20e 100644
--- a/ucw/log-conf.c
+++ b/ucw/log-conf.c
@@ -20,6 +20,7 @@ struct stream_config {
   char *name;
   char *file_name;
   char *syslog_facility;
+  u32 levels;
   clist substreams;			// simple_list of names
   int microseconds;			// Enable logging of precise timestamps
   int syslog_pids;
@@ -27,6 +28,15 @@ struct stream_config {
   int mark;				// Used temporarily in log_config_commit()
 };
 
+static char *
+stream_init(void *ptr)
+{
+  struct stream_config *c = ptr;
+
+  c->levels = ~0U;
+  return NULL;
+}
+
 static char *
 stream_commit(void *ptr)
 {
@@ -41,14 +51,23 @@ stream_commit(void *ptr)
   return NULL;
 }
 
+static const char * const level_names[] = {
+#define P(x) #x,
+  LOG_LEVEL_NAMES
+#undef P
+  NULL
+};
+
 static struct cf_section stream_config = {
   CF_TYPE(struct stream_config),
+  CF_INIT(stream_init),
   CF_COMMIT(stream_commit),
   CF_ITEMS {
 #define P(x) PTR_TO(struct stream_config, x)
     CF_STRING("Name", P(name)),
     CF_STRING("FileName", P(file_name)),
     CF_STRING("SyslogFacility", P(syslog_facility)),
+    CF_BITMAP_LOOKUP("Levels", P(levels), level_names),
     CF_LIST("Substream", P(substreams), &cf_string_list_config),
     CF_INT("Microseconds", P(microseconds)),
     CF_INT("SyslogPID", P(syslog_pids)),
@@ -149,6 +168,7 @@ do_new_configured(struct stream_config *c)
   CLIST_FOR_EACH(simp_node *, s, c->substreams)
     log_add_substream(ls, do_new_configured(stream_find(s->s)));
 
+  ls->levels = c->levels;
   if (c->microseconds)
     ls->msgfmt |= LSFMT_USEC;
 
-- 
2.39.2