libdispatch-84.5.3.tar.gz

[apple/libdispatch.git] / testing / dispatch_timer_bit31.c

diff --git a/testing/dispatch_timer_bit31.c b/testing/dispatch_timer_bit31.c
new file mode 100644 (file)
index 0000000..131c8c0
--- /dev/null
+++ b/testing/dispatch_timer_bit31.c
@@ -0,0 +1,56 @@
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+
+#include <dispatch/dispatch.h>
+
+#include "dispatch_test.h"
+
+int main(void)
+{
+       test_start("Dispatch Source Timer, bit 31");
+
+       dispatch_queue_t main_q = dispatch_get_main_queue();
+       test_ptr("dispatch_get_main_queue", main_q, dispatch_get_current_queue());
+
+       __block int i = 0;
+       struct timeval start_time;
+
+       gettimeofday(&start_time, NULL);
+       dispatch_source_attr_t attr = dispatch_source_attr_create();
+       dispatch_source_attr_set_finalizer(attr, ^(dispatch_source_t ds) {
+               struct timeval end_time;
+               gettimeofday(&end_time, NULL);
+               test_ptr_notnull("finalizer ran", ds);
+               // XXX: check, s/b 2.0799... seconds, which is <4 seconds
+               // when it could end on a bad boundry.
+               test_long_less_than("needs to finish faster than 4 seconds", end_time.tv_sec - start_time.tv_sec, 4);
+               // And it has to take at least two seconds...
+               test_long_less_than("can't finish faster than 2 seconds", 1, end_time.tv_sec - start_time.tv_sec);
+               test_stop();
+       });
+
+       dispatch_source_t s = dispatch_source_timer_create(DISPATCH_TIMER_INTERVAL,
+               0x80000000ull,
+               0,
+               attr,
+               main_q,
+               ^(dispatch_event_t ev) {
+                       long err;
+                       if (dispatch_event_get_error(ev, &err)) {
+                               test_errno("dispatch_event_get_error", err, ECANCELED);
+                               dispatch_release(dispatch_event_get_source(ev));
+                       } else {
+                               fprintf(stderr, "%d\n", ++i);
+                               dispatch_cancel(dispatch_event_get_source(ev));
+                       }
+               });
+       test_ptr_notnull("dispatch_source_timer_create", s);
+
+       dispatch_release(attr);
+
+       dispatch_main();
+
+       return 0;
+}