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cc -mt [ flag... ] file... -lpthread [ library... ] #include <pthread.h> int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate);
int pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate);
The detachstate attribute controls whether the thread is created in a detached state. If the thread is created detached, then use of the ID of the newly created thread by the pthread_detach() or pthread_join() function is an error.
The pthread_attr_setdetachstate() and pthread_attr_getdetachstate(), respectively, set and get the detachstate attribute in the attr object.
The detachstate can be set to either PTHREAD_CREATE_DETACHED or PTHREAD_CREATE_JOINABLE. A value of PTHREAD_CREATE_DETACHED causes all threads created with attr to be in the detached state, whereas using a value of PTHREAD_CREATE_JOINABLE causes all threads created with attr to be in the joinable state. The default value of the detachstate attribute is PTHREAD_CREATE_JOINABLE.
Upon successful completion, pthread_attr_setdetachstate() and pthread_attr_getdetachstate() return a value of 0. Otherwise, an error number is returned to indicate the error.
The pthread_attr_getdetachstate() function stores the value of the detachstate attribute in detachstate if successful.
The pthread_attr_setdetachstate() or pthread_attr_getdetachstate() functions may fail if: EINVAL
attr or detachstate is invalid.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE ATTRIBUTE VALUE |
| Interface Stability Standard |
| MT-Level MT-Safe |
pthread_attr_init(3C), pthread_attr_setstackaddr(3C), pthread_attr_setstacksize(3C), pthread_create(3C), attributes(5), standards(5)