added a method to set the filter given a priority string (instead

of a number).  fixed a comment related to what those priority
strings are.  added a CLOG_PRINT priority which is never filtered
and suppresses the trace info and the priority level message.
it's intended as a way to output a message through the logger
without getting extra output.

base/CLog.cpp

@@ -96,6 +96,11 @@ void					CLog::printt(const char* file, int line,
 	sprintf(buffer + g_priorityPad, "%s,%d:", file, line);
 	buffer[pad - 1] = ' ';
 
+	// discard file and line if priority < 0
+	if (priority < 0) {
+		buffer += pad - g_priorityPad;
+	}
+
 	// output buffer
 	output(priority, buffer);
 
@@ -128,6 +133,20 @@ CLog::Lock				CLog::getLock()
 	return (s_lock == dummyLock) ? NULL : s_lock;
 }
 
+bool					CLog::setFilter(const char* maxPriority)
+{
+	if (maxPriority != NULL) {
+		for (int i = 0; i < g_numPriority; ++i) {
+			if (strcmp(maxPriority, g_priority[i]) == 0) {
+				setFilter(i);
+				return true;
+			}
+		}
+		return false;
+	}
+	return true;
+}
+
 void					CLog::setFilter(int maxPriority)
 {
 	CHoldLock lock(s_lock);
@@ -151,15 +170,7 @@ int						CLog::getMaxPriority()
 
 	if (s_maxPriority == -1) {
 		s_maxPriority = g_defaultMaxPriority;
-		const char* priEnv = getenv("SYN_LOG_PRI");
+		setFilter(getenv("SYN_LOG_PRI"));
-		if (priEnv != NULL) {
-			for (int i = 0; i < g_numPriority; ++i) {
-				if (strcmp(priEnv, g_priority[i]) == 0) {
-					s_maxPriority = i;
-					break;
-				}
-			}
-		}
 	}
 
 	return s_maxPriority;
@@ -167,14 +178,18 @@ int						CLog::getMaxPriority()
 
 void					CLog::output(int priority, char* msg)
 {
-	assert(priority >= 0 && priority < g_numPriority);
+	assert(priority >= -1 && priority < g_numPriority);
 	assert(msg != 0);
 
 	if (priority <= getMaxPriority()) {
 		// insert priority label
-		int n = strlen(g_priority[priority]);
+		int n = -g_prioritySuffixLength;
-		sprintf(msg + g_maxPriorityLength - n, "%s:", g_priority[priority]);
+		if (priority >= 0) {
+			n = strlen(g_priority[priority]);
+			sprintf(msg + g_maxPriorityLength - n,
+								"%s:", g_priority[priority]);
 			msg[g_maxPriorityLength + 1] = ' ';
+		}
 
 		// put a newline at the end
 #if defined(CONFIG_PLATFORM_WIN32)

base/CLog.h

@@ -30,7 +30,10 @@ public:
 	// priority is discarded.  the default priority is 4 (INFO)
 	// (unless built without NDEBUG in which case it's 5 (DEBUG)).
 	// the default can be overridden by setting the SYN_LOG_PRI env
-	// var to "CRIT", "ERR", etc.
+	// var to "FATAL", "ERROR", etc.  setFilter(const char*) returns
+	// true if the priority name was recognized;  if name == NULL
+	// then it simply returns true.
+	static bool			setFilter(const char* name);
 	static void			setFilter(int);
 	static int			getFilter();
 
@@ -73,6 +76,7 @@ private:
 #define CLOG_TRACE		__FILE__, __LINE__,
 #endif
 
+#define CLOG_PRINT		CLOG_TRACE "%z\057"
 #define CLOG_CRIT		CLOG_TRACE "%z\060"
 #define CLOG_ERR		CLOG_TRACE "%z\061"
 #define CLOG_WARN		CLOG_TRACE "%z\062"