Red Bear OS
1b3e94a20d
From release 0.1.0 pre-patched archive. This includes all Red Bear modifications previously maintained as patches in local/patches/relibc/.
69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
#include <assert.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <pthread.h>
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#include <unistd.h>
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#include "common.h"
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struct arg2 {
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int status;
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pthread_t t1;
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};
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void *routine1(void *arg) {
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assert(arg == NULL);
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puts("Thread 1 spawned, waiting 1s.");
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usleep(100000);
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puts("Thread 1 finished.");
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return strdup("message from thread 1");
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}
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void *routine2(void *arg_raw) {
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struct arg2 *arg = arg_raw;
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puts("Thread 2 spawned, awaiting thread 1.");
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void *retval_raw;
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int status;
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if ((status = pthread_join(arg->t1, &retval_raw)) != 0) {
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arg->status = fail(status, "t1 join from thread 2");
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return NULL;
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}
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char *retval = retval_raw;
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assert(strcmp(retval, "message from thread 1") == 0);
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free(retval);
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return NULL;
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}
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int main(void) {
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pthread_t t1;
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pthread_t t2;
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int status;
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puts("Main thread.");
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if ((status = pthread_create(&t1, NULL, routine1, NULL)) != 0) {
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return fail(status, "t1 create");
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}
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puts("Created thread 1.");
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struct arg2 arg = { .status = 0, .t1 = t1 };
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if ((status = pthread_create(&t2, NULL, routine2, &arg)) != 0) {
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return fail(status, "t2 create");
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}
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if ((status = pthread_join(t2, NULL)) != 0) {
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return fail(status, "t2 join");
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}
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return EXIT_SUCCESS;
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}
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