47 lines
No EOL
1.1 KiB
C
47 lines
No EOL
1.1 KiB
C
#include <ctype.h>
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#include <errno.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <stdio.h>
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// Shared variable
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int a = 1;
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void foo(void) {
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while (a)
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asm volatile ("":::"memory");
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printf("Exiting from foo...\n");
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exit(EXIT_SUCCESS);
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}
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void bar(void) {
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a = 0;
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printf("Exiting from bar...\n");
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exit(EXIT_SUCCESS);
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}
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int main(int argc, char** argv) {
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const size_t NR_THREADS = 2;
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pthread_t *threads = calloc(NR_THREADS, sizeof(pthread_t));
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int ret_create_thread_1 = pthread_create(
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&threads[0], NULL, (void *(*)(void *))foo, NULL);
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if (ret_create_thread_1) {
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perror("Failed to create pthread for `foo`.");
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exit(EXIT_FAILURE);
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}
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int ret_create_thread_2 = pthread_create(
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&threads[1], NULL, (void *(*)(void *))bar, NULL);
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if (ret_create_thread_2) {
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perror("Failed to create pthread for `bar`.");
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pthread_cancel(threads[0]);
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exit(EXIT_FAILURE);
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}
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for (size_t thread_idx = 0; thread_idx < NR_THREADS; thread_idx++) {
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pthread_join(threads[thread_idx], NULL);
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}
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exit(EXIT_SUCCESS);
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} |