| #include <assert.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <inttypes.h> |
| #include <pthread.h> |
| #include <sys/wait.h> |
| #include <sched.h> |
| |
| void checked_write(int fd, const void *buf, size_t count) |
| { |
| ssize_t rc = write(fd, buf, count); |
| assert(rc == count); |
| } |
| |
| void *thread1_func(void *arg) |
| { |
| int i; |
| char buf[512]; |
| |
| for(i=0;i<10;i++) { |
| snprintf(buf, sizeof(buf), "thread1: %d %s\n", i, (char *)arg); |
| checked_write(1, buf, strlen(buf)); |
| usleep(100 * 1000); |
| } |
| return NULL; |
| } |
| |
| void *thread2_func(void *arg) |
| { |
| int i; |
| char buf[512]; |
| for(i=0;i<20;i++) { |
| snprintf(buf, sizeof(buf), "thread2: %d %s\n", i, (char *)arg); |
| checked_write(1, buf, strlen(buf)); |
| usleep(150 * 1000); |
| } |
| return NULL; |
| } |
| |
| void test_pthread(void) |
| { |
| pthread_t tid1, tid2; |
| |
| pthread_create(&tid1, NULL, thread1_func, "hello1"); |
| pthread_create(&tid2, NULL, thread2_func, "hello2"); |
| pthread_join(tid1, NULL); |
| pthread_join(tid2, NULL); |
| printf("End of pthread test.\n"); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| test_pthread(); |
| return 0; |
| } |