PTHREAD_CREATE(3) | Library Functions Manual | PTHREAD_CREATE(3) |
pthread_create
—
#include <pthread.h>
int
pthread_create
(pthread_t
* restrict thread, const
pthread_attr_t * restrict attr,
void *(*start_routine)(void
*), void * restrict
arg);
pthread_create
() function is used to create a new
thread, with attributes specified by attr, within a
process. If attr is NULL
, the
default attributes are used.
The attributes specified via attr are copied
into the new thread. Any subsequent modifications to the attributes object
attr points to will have no effect upon
already-created threads. It is thus also safe to pass the same
attr to multiple calls to
pthread_create
().
Upon successful completion
pthread_create
() will store the ID of the created
thread in the location specified by thread. The thread
is created executing start_routine with
arg as its sole argument.
If the start_routine returns, the effect is
as if there was an implicit call to pthread_exit
()
using the return value of start_routine as the exit
status. Note that the thread in which main
() was
originally invoked differs from this. When it returns from
main
(), the effect is as if there was an implicit
call to exit
() using the return value of
main
() as the exit status.
The signal state of the new thread is initialized as:
pthread_create
() function will return
zero. Otherwise an error number will be returned to indicate the error.
pthread_create
() shall fail if:
July 9, 2010 | NetBSD 9.2 |