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c/main: Fix a condition var wait in windows win

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Ryan Pavlik 2022-05-20 14:39:11 -05:00 committed by Jakob Bornecrantz
parent 5a81d1412a
commit c7580c5242
1 changed files with 20 additions and 4 deletions
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24
src/xrt/compositor/main/comp_window_mswin.c
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@ -42,6 +42,8 @@ struct comp_window_mswin
bool fullscreen_requested;
bool should_exit;
bool thread_started;
bool thread_exited;
};
static WCHAR szWindowClass[] = L"Monado";
@ -212,6 +214,7 @@ comp_window_mswin_window_loop(struct comp_window_mswin *cwm)
// Unblock the parent thread now that we're successfully running.
{
os_thread_helper_lock(&cwm->oth);
cwm->thread_started = true;
os_thread_helper_signal_locked(&cwm->oth);
os_thread_helper_unlock(&cwm->oth);
}
@ -251,6 +254,16 @@ comp_window_mswin_window_loop(struct comp_window_mswin *cwm)
}
}
static void
comp_window_mswin_mark_exited(struct comp_window_mswin *cwm)
{
// Unblock the parent thread to advise of our exit
os_thread_helper_lock(&cwm->oth);
cwm->thread_exited = true;
os_thread_helper_signal_locked(&cwm->oth);
os_thread_helper_unlock(&cwm->oth);
}
static void
comp_window_mswin_thread(struct comp_window_mswin *cwm)
{
@ -280,7 +293,7 @@ comp_window_mswin_thread(struct comp_window_mswin *cwm)
if (!window_class) {
COMP_ERROR_GETLASTERROR(ct->c, "Failed to register window class: %s",
"Failed to register window class");
// parent thread will be notified (by caller) that we have exited.
comp_window_mswin_mark_exited(cwm);
return;
}
@ -291,6 +304,8 @@ comp_window_mswin_thread(struct comp_window_mswin *cwm)
COMP_ERROR_GETLASTERROR(ct->c, "Failed to unregister window class: %s",
"Failed to unregister window class");
}
comp_window_mswin_mark_exited(cwm);
}
static void *
@ -322,9 +337,10 @@ comp_window_mswin_init(struct comp_target *ct)
// Wait for thread to start, create window, etc.
os_thread_helper_lock(&cwm->oth);
os_thread_helper_wait_locked(&cwm->oth);
// if it fails it will exit immediately.
bool ret = os_thread_helper_is_running_locked(&cwm->oth);
while (!cwm->thread_started && !cwm->thread_exited) {
os_thread_helper_wait_locked(&cwm->oth);
}
bool ret = cwm->thread_started && !cwm->thread_exited;
os_thread_helper_unlock(&cwm->oth);
return ret;
}