I'm running boost 1.43 on linux and seeing an issue where the scoped_lock timed lock is returning immediately when another thread holds the lock. The lock is being stored in shared memory
Am I doing something wrong? The code in question is the azLog function below, (I included some other relevant snips as well).
thanks!
Dan
#define LOCK_WAIT_TIME 5; //seconds
static named_recursive_mutex *globalLock = create_logger_lock();
static named_recursive_mutex *create_logger_lock () {
named_recursive_mutex *ptr = NULL;
if (globalLock) {
return(globalLock);
}
deadlock_count = 0;
lock_timeout = LOCK_WAIT_TIME;
try {
ptr = new named_recursive_mutex(open_or_create,
(getShareName() + GLOBAL_LOCK).c_str());
} catch (const interprocess_exception &ie) {
cerr << "FATAL: Couldn't initialize the logging subsytem, IE err:" <<
ie.what() << endl;
throw;
} catch (const std::exception &se) {
cerr << "FATAL: Couldn't initialize the logging subsytem, std err:" <<
se.what() << endl;
throw;
}
return(ptr);
}
void azLog(AZ_LOG_SEVERITY sev, AZ_LOG_COMPONENT comp, const string& log_str) {
ptime to = second_clock::local_time() + seconds(lock_timeout);
scoped_lock lock(*globalLock, to);
while(!lock.owns() && (second_clock::local_time() < to)) {
cerr << pthread_self() << ": SPURIOUS WAKE!!" << to_simple_string(second_clock::local_time()) << " <=:=> " << to_simple_string(to) << endl;
lock.timed_lock(to);
}
.....
