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48 lines
1006 B
C
48 lines
1006 B
C
#include <stdio.h>
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#include <pthread.h>
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#include <stdlib.h>
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#define NUM_THREADS 10
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#define MSG_LEN 100
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struct thread_data {
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char *msg;
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};
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typedef struct thread_data thread_data_t;
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void *PrintHello(void *arg) {
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thread_data_t *td = (thread_data_t *) arg;
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printf("%s", td->msg);
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pthread_exit(NULL);
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}
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void dienomem() {
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printf("ERROR: No memory?!\n");
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exit(1);
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}
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int main(int argc, char *argv[]) {
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pthread_t threads[NUM_THREADS];
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for (int t = 0; t < NUM_THREADS; t++) {
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/* printf("Creating thread %d\n", t); */
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thread_data_t *td = malloc(sizeof(thread_data_t));
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if (!td)
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dienomem();
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td->msg = malloc(MSG_LEN);
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if (!td->msg)
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dienomem();
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snprintf(td->msg, MSG_LEN, "Hello, I'm thread %d!\n", t);
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int rc = pthread_create(&threads[t], NULL, PrintHello, (void *) td);
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if (rc) {
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printf("ERROR: return code from pthread_create() is %d\n", rc);
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exit(1);
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}
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}
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pthread_exit(NULL); /* Wait for the threads to finish. */
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}
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