static VALUE
rb_monitor_run_bang(VALUE self)
{
BOOL already_running,
waiting_succeeded;
WDM_PMonitor monitor;
WDM_DEBUG("Running the monitor!");
Data_Get_Struct(self, WDM_Monitor, monitor);
already_running = FALSE;
EnterCriticalSection(&monitor->lock);
if ( monitor->running ) {
already_running = TRUE;
}
else {
monitor->running = TRUE;
}
LeaveCriticalSection(&monitor->lock);
if (already_running) {
WDM_DEBUG("Not doing anything because the monitor is already running!");
return Qnil;
}
// Reset events
ResetEvent(monitor->process_event);
ResetEvent(monitor->stop_event);
monitor->monitoring_thread = CreateThread(
NULL, // default security attributes
0, // use default stack size
start_monitoring, // thread function name
monitor, // argument to thread function
0, // use default creation flags
NULL // Ignore thread identifier
);
if ( monitor->monitoring_thread == NULL ) {
rb_raise(eWDM_Error, "Can't create a thread for the monitor!");
}
while ( monitor->running ) {
waiting_succeeded = rb_thread_blocking_region(wait_for_changes, monitor->process_event, stop_monitoring, monitor);
if ( waiting_succeeded == Qfalse ) {
rb_raise(eWDM_Error, "Failed while waiting for a change in the watched directories!");
}
if ( ! monitor->running ) {
wdm_queue_empty(monitor->changes);
return Qnil;
}
process_changes(monitor->changes);
if ( ! ResetEvent(monitor->process_event) ) {
rb_raise(eWDM_Error, "Couldn't reset system events to watch for changes!");
}
}
return Qnil;
}
static VALUE
rb_monitor_run_bang(VALUE self)
{
BOOL already_running,
waiting_succeeded;
WDM_PMonitor monitor;
WDM_DEBUG("Running the monitor!");
Data_Get_Struct(self, WDM_Monitor, monitor);
already_running = FALSE;
EnterCriticalSection(&monitor->lock);
if ( monitor->running ) {
already_running = TRUE;
}
else {
monitor->running = TRUE;
}
LeaveCriticalSection(&monitor->lock);
if (already_running) {
WDM_DEBUG("Not doing anything because the monitor is already running!");
return Qnil;
}
// Reset events
ResetEvent(monitor->process_event);
ResetEvent(monitor->stop_event);
monitor->monitoring_thread = CreateThread(
NULL, // default security attributes
0, // use default stack size
start_monitoring, // thread function name
monitor, // argument to thread function
0, // use default creation flags
NULL // Ignore thread identifier
);
if ( monitor->monitoring_thread == NULL ) {
rb_raise(eWDM_Error, "Can't create a thread for the monitor!");
}
while ( monitor->running ) {
// Ruby 2.2 removed the 'rb_thread_blocking_region' function. Hence, we now need
// to check if the replacement function is defined and use it if it's available.
#ifdef HAVE_RB_THREAD_CALL_WITHOUT_GVL
waiting_succeeded = rb_thread_call_without_gvl(wait_for_changes, monitor->process_event, stop_monitoring, monitor);
#else
waiting_succeeded = rb_thread_blocking_region(wait_for_changes, monitor->process_event, stop_monitoring, monitor);
#endif
if ( waiting_succeeded == Qfalse ) {
rb_raise(eWDM_Error, "Failed while waiting for a change in the watched directories!");
}
if ( ! monitor->running ) {
wdm_queue_empty(monitor->changes);
return Qnil;
}
process_changes(monitor->changes);
if ( ! ResetEvent(monitor->process_event) ) {
rb_raise(eWDM_Error, "Couldn't reset system events to watch for changes!");
}
}
return Qnil;
}
