Standards / Extensions | C or C++ | Dependencies |
---|---|---|
z/OS® UNIX | both | POSIX(ON) |
#define _OPEN_SYS
#define _OPEN_SYS
#include <pthread.h>
int pthread_join_d4_np(pthread_t thread, void **status);
Allows the calling thread to wait for the ending of the target thread.
pthread_t is the data type used to uniquely identify a thread. It is returned by pthread_create() and used by the application in function calls that require a thread identifier.
status contains a pointer to the status argument passed by the ending thread as part of pthread_exit(). If the ending thread ended by a return, status contains a pointer to the return value. If the thread was canceled, status can be set to -1.
If successful, pthread_join_d4_np() returns 0.
⁄* CELEBP33 *⁄
#define _OPEN_SYS
#define _OPEN_THREADS
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
void *thread(void *arg) {
char *ret;
printf("thread() entered with argument '%s'\n", arg);
if ((ret = (char*) malloc(20)) == NULL) {
perror("malloc() error");
exit(2);
}
strcpy(ret, "This is a test");
pthread_exit(ret);
}
main() {
pthread_t thid;
void *ret;
if (pthread_create(&thid, NULL, thread, "thread 1") != 0) {
perror("pthread_create() error");
exit(1);
}
if (pthread_join_d4_np(thid, &ret) != 0) {
perror("pthread_create() error");
exit(3);
}
printf("thread exited with '%s'\n", ret);
if (pthread_detach(&thid) != 0) {
perror("pthread_detach() error");
exit(4);
}
}
thread() entered with argument 'thread 1'
thread exited with 'This is a test'