| pthread_create.3 (50476) | pthread_create.3 (57686) |
|---|---|
| 1.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 14 unchanged lines hidden (view full) --- 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" | 1.\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 14 unchanged lines hidden (view full) --- 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" |
| 31.\" $FreeBSD: head/share/man/man3/pthread_create.3 50476 1999-08-28 00:22:10Z peter $ | 31.\" $FreeBSD: head/share/man/man3/pthread_create.3 57686 2000-03-02 09:14:21Z sheldonh $ |
| 32.\" 33.Dd April 4, 1996 34.Dt PTHREAD_CREATE 3 35.Os BSD 4 36.Sh NAME 37.Nm pthread_create 38.Nd create a new thread 39.Sh SYNOPSIS 40.Fd #include <pthread.h> 41.Ft int 42.Fn pthread_create "pthread_t *thread" "const pthread_attr_t *attr" "void *(*start_routine)(void *)" "void *arg" 43.Sh DESCRIPTION 44The 45.Fn pthread_create 46function is used to create a new thread, with attributes specified by 47.Fa attr , | 32.\" 33.Dd April 4, 1996 34.Dt PTHREAD_CREATE 3 35.Os BSD 4 36.Sh NAME 37.Nm pthread_create 38.Nd create a new thread 39.Sh SYNOPSIS 40.Fd #include <pthread.h> 41.Ft int 42.Fn pthread_create "pthread_t *thread" "const pthread_attr_t *attr" "void *(*start_routine)(void *)" "void *arg" 43.Sh DESCRIPTION 44The 45.Fn pthread_create 46function is used to create a new thread, with attributes specified by 47.Fa attr , |
| 48within a process. If | 48within a process. 49If |
| 49.Fa attr | 50.Fa attr |
| 50is NULL, the default attributes are used. If the attributes specified by | 51is NULL, the default attributes are used. 52If the attributes specified by |
| 51.Fa attr | 53.Fa attr |
| 52are modified later, the thread's attributes are not affected. Upon | 54are modified later, the thread's attributes are not affected. 55Upon |
| 53successful completion 54.Fn pthread_create 55will store the ID of the created thread in the location specified by 56.Fa thread . 57.Pp 58The thread is created executing 59.Fa start_routine 60with 61.Fa arg | 56successful completion 57.Fn pthread_create 58will store the ID of the created thread in the location specified by 59.Fa thread . 60.Pp 61The thread is created executing 62.Fa start_routine 63with 64.Fa arg |
| 62as its sole argument. If the | 65as its sole argument. 66If the |
| 63.Fa start_routine 64returns, the effect is as if there was an implicit call to 65.Fn pthread_exit 66using the return value of 67.Fa start_routine | 67.Fa start_routine 68returns, the effect is as if there was an implicit call to 69.Fn pthread_exit 70using the return value of 71.Fa start_routine |
| 68as the exit status. Note that the thread in which | 72as the exit status. 73Note that the thread in which |
| 69.Fn main | 74.Fn main |
| 70was originally invoked differs from this. When it returns from | 75was originally invoked differs from this. 76When it returns from |
| 71.Fn main , 72the effect is as if there was an implicit call to 73.Fn exit 74using the return value of 75.Fn main 76as the exit status. 77.Pp 78The signal state of the new thread is initialized as: 79.Bl -bullet -offset indent 80.It 81The signal mask is inherited from the creating thread. 82.It 83The set of signals pending for the new thread is empty. 84.El 85.Sh RETURN VALUES 86If successful, the 87.Fn pthread_create | 77.Fn main , 78the effect is as if there was an implicit call to 79.Fn exit 80using the return value of 81.Fn main 82as the exit status. 83.Pp 84The signal state of the new thread is initialized as: 85.Bl -bullet -offset indent 86.It 87The signal mask is inherited from the creating thread. 88.It 89The set of signals pending for the new thread is empty. 90.El 91.Sh RETURN VALUES 92If successful, the 93.Fn pthread_create |
| 88function will return zero. Otherwise an error number will be returned to | 94function will return zero. 95Otherwise an error number will be returned to |
| 89indicate the error. 90.Sh ERRORS 91.Fn pthread_create 92will fail if: 93.Bl -tag -width Er 94.It Bq Er EAGAIN 95The system lacked the necessary resources to create another thread, or 96the system-imposed limit on the total number of threads in a process --- 18 unchanged lines hidden --- | 96indicate the error. 97.Sh ERRORS 98.Fn pthread_create 99will fail if: 100.Bl -tag -width Er 101.It Bq Er EAGAIN 102The system lacked the necessary resources to create another thread, or 103the system-imposed limit on the total number of threads in a process --- 18 unchanged lines hidden --- |