Added abort-on-bug flag and command line option.

git-svn-id: http://yate.null.ro/svn/yate/trunk@80 acf43c95-373e-0410-b603-e72c3f656dc1

engine/Engine.cpp

@@ -393,6 +393,7 @@ static void usage(FILE *f)
 "   -m pathname    Path to modules directory (" MOD_PATH ")\n"
 #ifndef NDEBUG
 "   -D[options]    Special debugging options\n"
+"     a            Abort if bugs are encountered\n"
 "     c            Call dlclose() until it gets an error\n"
 "     i            Reinitialize after 1st initialization\n"
 "     x            Exit immediately after initialization\n"
@@ -490,6 +491,9 @@ int Engine::main(int argc, const char **argv, const char **environ)
 		    case 'D':
 			while (*++pc) {
 			    switch (*pc) {
+				case 'a':
+				    abortOnBug(true);
+				    break;
 				case 'c':
 				    s_keepclosing = true;
 				    break;

engine/Mutex.cpp

@@ -20,8 +20,8 @@ public:
 	{ if (!--m_refcount) delete this; }
     bool lock(long long int maxwait);
     void unlock();
-    static int s_count;
-    static int s_locks;
+    static volatile int s_count;
+    static volatile int s_locks;
 private:
     pthread_mutex_t m_mutex;
     int m_refcount;
@@ -32,8 +32,8 @@ private:
 
 using namespace TelEngine;
 
-int MutexPrivate::s_count = 0;
-int MutexPrivate::s_locks = 0;
+volatile int MutexPrivate::s_count = 0;
+volatile int MutexPrivate::s_locks = 0;
 
 // WARNING!!!
 // No debug messages are allowed in mutexes since the debug output itself
@@ -93,7 +93,7 @@ void MutexPrivate::unlock()
     }
     else
 	// Hope we don't hit a bug related to the debug mutex!
-	Debug(DebugGoOn,"MutexPrivate::unlock called on unlocked mutex");
+	Debug(DebugFail,"MutexPrivate::unlock called on unlocked mutex");
 }
 
 Mutex::Mutex()

engine/TelEngine.cpp

@@ -19,6 +19,7 @@ namespace TelEngine {
 static int s_debug = DebugWarn;
 static int s_indent = 0;
 static bool s_debugging = true;
+static bool s_abort = false;
 
 static void dbg_stderr_func(const char *buf)
 {
@@ -93,6 +94,8 @@ bool Debug(int level, const char *format, ...)
 	va_start(va,format);
 	dbg_output(buf,format,va);
 	va_end(va);
+	if (s_abort && (level == DebugFail))
+	    abort();
 	return true;
     }
     return false;
@@ -111,11 +114,26 @@ bool Debug(const char *facility, int level, const char *format, ...)
 	va_start(va,format);
 	dbg_output(buf,format,va);
 	va_end(va);
+	if (s_abort && (level == DebugFail))
+	    abort();
 	return true;
     }
     return false;
 }
 
+void abortOnBug()
+{
+    if (s_abort)
+	abort();
+}
+
+bool abortOnBug(bool doAbort)
+{
+    bool tmp = s_abort;
+    s_abort = doAbort;
+    return tmp;
+}  
+
 int debugLevel()
 {
     return s_debug;

yatengine.h

@@ -22,6 +22,18 @@ namespace TelEngine {
 #define FORMAT_CHECK(f)
 #endif
 
+/**
+ * Abort execution (and coredump if allowed) if the abort flag is set.
+ * This function may not return.
+ */
+void abortOnBug();
+
+/**
+ * Set the abort on bug flag. The default flag state is false.
+ * @return The old state of the flag.
+ */
+bool abortOnBug(bool doAbort);
+
 /**
  * Standard debugging levels.
  */