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49 lines
1.3 KiB
49 lines
1.3 KiB
6 years ago
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#include <stdio.h>
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#include <stdlib.h>
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#include <pthread.h>
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void *print_message_function( void *ptr );
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main()
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{
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pthread_t thread1, thread2;
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const char *message1 = "Thread 1";
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const char *message2 = "Thread 2";
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int iret1, iret2;
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/* Create independent threads each of which will execute function */
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iret1 = pthread_create( &thread1, NULL, print_message_function, (void*) message1);
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if(iret1)
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{
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fprintf(stderr,"Error - pthread_create() return code: %d\n",iret1);
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exit(EXIT_FAILURE);
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}
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iret2 = pthread_create( &thread2, NULL, print_message_function, (void*) message2);
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if(iret2)
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{
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fprintf(stderr,"Error - pthread_create() return code: %d\n",iret2);
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exit(EXIT_FAILURE);
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}
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printf("pthread_create() for thread 1 returns: %d\n",iret1);
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printf("pthread_create() for thread 2 returns: %d\n",iret2);
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/* Wait till threads are complete before main continues. Unless we */
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/* wait we run the risk of executing an exit which will terminate */
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/* the process and all threads before the threads have completed. */
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pthread_join( thread1, NULL);
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pthread_join( thread2, NULL);
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exit(EXIT_SUCCESS);
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}
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void *print_message_function( void *ptr )
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{
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char *message;
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message = (char *) ptr;
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printf("%s \n", message);
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}
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