// Creation method
VXItrdResult SBtrdEvent::Create( )
{
VXItrdResult rc;
Diag (0, L"SBtrdEvent::Create", L"enter: this 0x%p", this);
if ( _timer != NULL ) {
rc = VXItrd_RESULT_FATAL_ERROR;
} else {
rc = VXItrdTimerCreate (&_timer);
if ( rc == VXItrd_RESULT_SUCCESS )
rc = VXItrdMutexCreate (&_sleepMutex);
}
return rc;
}
/**
* Global platform initialization of OSBlog
*
* @param logFileName Name of the file where diagnostic, error, and
* event information will be written. Pass NULL
* to disable logging to a file.
* @param logToStdout TRUE to log diagnostic and error messages to
* standard out, FALSE to disable. Event reports
* are never logged to standard out.
*
* @result VXIlogResult 0 on success
*/
OSBLOG_API VXIlogResult OSBlogInit(const char *logFileName,
VXIbool logToStdout)
{
if (gblInitialized == true)
return VXIlog_RESULT_FATAL_ERROR;
// Create the log mutex
if (VXItrdMutexCreate(&gblLogMutex) != VXItrd_RESULT_SUCCESS)
return VXIlog_RESULT_SYSTEM_ERROR;
// Open the log file
if ((logFileName) && (logFileName[0])) {
gblLogFile = fopen(logFileName, "a");
if (! gblLogFile)
return VXIlog_RESULT_IO_ERROR;
}
gblInitialized = true;
gblLogToStdout = (logToStdout ? true : false);
return VXIlog_RESULT_SUCCESS;
}
/**
* Create a thread. Note: thread values are not supported on OS/2.
* execution starts on the thread immediately. To pause execution
* use a Mutex between the thread and the thread creator.
*
* @param thread the thread object to be created
* @param thread_function the function for the thread to start execution on
* @param thread_arg the arguments to the thread function
* @return VXItrdResult of operation. Return SUCCESS if thread has been
* created and started.
*
*/
VXITRD_API
VXItrdResult VXItrdThreadCreate(VXItrdThread **thread,
VXItrdThreadStartFunc thread_function,
VXItrdThreadArg thread_arg)
{
if ((thread == NULL) || (thread_function == NULL))
return VXItrd_RESULT_INVALID_ARGUMENT;
*thread = NULL;
// Create the wrapper object
VXItrdThread *result = new VXItrdThread;
if (result == NULL)
return VXItrd_RESULT_OUT_OF_MEMORY;
memset(result, 0, sizeof (VXItrdThread));
result->state = STATE_STARTING;
result->refCount = 1; // 1 for parent
result->thread_function = thread_function;
result->thread_arg = thread_arg;
if (VXItrdMutexCreate(&result->refCountMutex) != VXItrd_RESULT_SUCCESS) {
VXItrdThreadDestroyHandle(&result);
return VXItrd_RESULT_SYSTEM_ERROR;
}
// construct thread attribute
pthread_attr_t thread_attr;
int prc = pthread_attr_init(&thread_attr);
if (prc != 0) {
VXItrdThreadDestroyHandle(&result);
return VXItrd_RESULT_NON_FATAL_ERROR;
}
// configure thread attribute
#ifdef USE_DETACHED_THREADS
prc = pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_DETACHED);
if (prc != 0) {
pthread_attr_destroy(&thread_attr);
VXItrdThreadDestroyHandle(&result);
return VXItrd_RESULT_NON_FATAL_ERROR;
}
#else
// use joinable threads
// this is default - no work required
#endif
// Instead of using the default 2M as stack size, reduce it to 1M
size_t stacksize = 0;
prc = pthread_attr_getstacksize(&thread_attr, &stacksize);
if (prc == 0) {
prc = pthread_attr_setstacksize(&thread_attr, SIPXCHANGE_STACK_SIZE_128K);
}
// Start the thread using our wrapper function
result->refCount++; // for child
prc = pthread_create(&result->thread, &thread_attr, VXItrdThreadStart,
(VXItrdThreadArg) result);
pthread_attr_destroy(&thread_attr);
if (prc != 0) {
result->refCount--;
VXItrdThreadDestroyHandle(&result);
return VXItrd_RESULT_NON_FATAL_ERROR;
}
*thread = result;
return VXItrd_RESULT_SUCCESS;
}
OSBlog::OSBlog(VXIint chNum) : channelNum(chNum)
{
// reset TAG ID range
memset(TagIDs,0,LOG_MAX_TAG);
VXItrdMutexCreate(&callbackLock);
}
InternalMutex() : mutex(NULL)
{ error = (VXItrdMutexCreate(&mutex) != VXItrd_RESULT_SUCCESS); }