forked from OSchip/llvm-project
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
#include <stdio.h>
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#include <unistd.h>
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#include <dispatch/dispatch.h>
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#include <pthread.h>
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void
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doing_the_work_1(void *in)
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{
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while (1)
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sleep (1);
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}
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void
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submit_work_1a(void *in)
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{
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dispatch_queue_t *work_performer_1 = (dispatch_queue_t*) in;
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dispatch_async_f (*work_performer_1, NULL, doing_the_work_1);
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dispatch_async_f (*work_performer_1, NULL, doing_the_work_1);
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}
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void
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submit_work_1b(void *in)
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{
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dispatch_queue_t *work_performer_1 = (dispatch_queue_t*) in;
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dispatch_async_f (*work_performer_1, NULL, doing_the_work_1);
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dispatch_async_f (*work_performer_1, NULL, doing_the_work_1);
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while (1)
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sleep (1);
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}
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void
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doing_the_work_2(void *in)
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{
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while (1)
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sleep (1);
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}
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void
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submit_work_2(void *in)
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{
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dispatch_queue_t *work_performer_2 = (dispatch_queue_t*) in;
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int i = 0;
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while (i++ < 5000)
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{
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dispatch_async_f (*work_performer_2, NULL, doing_the_work_2);
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dispatch_async_f (*work_performer_2, NULL, doing_the_work_2);
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}
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}
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void
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doing_the_work_3(void *in)
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{
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while (1)
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sleep(1);
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}
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void
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submit_work_3(void *in)
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{
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dispatch_queue_t *work_performer_3 = (dispatch_queue_t*) in;
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dispatch_async_f (*work_performer_3, NULL, doing_the_work_3);
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dispatch_async_f (*work_performer_3, NULL, doing_the_work_3);
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dispatch_async_f (*work_performer_3, NULL, doing_the_work_3);
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dispatch_async_f (*work_performer_3, NULL, doing_the_work_3);
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}
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void
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stopper ()
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{
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while (1)
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sleep (1);
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}
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int main ()
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{
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dispatch_queue_t work_submittor_1 = dispatch_queue_create ("com.apple.work_submittor_1", DISPATCH_QUEUE_SERIAL);
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dispatch_queue_t work_submittor_2 = dispatch_queue_create ("com.apple.work_submittor_and_quit_2", DISPATCH_QUEUE_SERIAL);
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dispatch_queue_t work_submittor_3 = dispatch_queue_create ("com.apple.work_submittor_3", DISPATCH_QUEUE_SERIAL);
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dispatch_queue_t work_performer_1 = dispatch_queue_create ("com.apple.work_performer_1", DISPATCH_QUEUE_SERIAL);
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dispatch_queue_t work_performer_2 = dispatch_queue_create ("com.apple.work_performer_2", DISPATCH_QUEUE_SERIAL);
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dispatch_queue_t work_performer_3 = dispatch_queue_create ("com.apple.work_performer_3", DISPATCH_QUEUE_CONCURRENT);
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dispatch_async_f (work_submittor_1, (void*) &work_performer_1, submit_work_1a);
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dispatch_async_f (work_submittor_1, (void*) &work_performer_1, submit_work_1b);
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dispatch_async_f (work_submittor_2, (void*) &work_performer_2, submit_work_2);
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dispatch_async_f (work_submittor_3, (void*) &work_performer_3, submit_work_3);
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sleep (1);
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stopper ();
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}
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