1 .\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
2 .\" All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
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9 .\" 2. Redistributions in binary form must reproduce the above copyright
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12 .\" 3. All advertising materials mentioning features or use of this software
13 .\" must display the following acknowledgement:
14 .\" This product includes software developed by John Birrell.
15 .\" 4. Neither the name of the author nor the names of any co-contributors
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19 .\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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38 .Nd create a new thread
40 .Fd #include <pthread.h>
42 .Fn pthread_create "pthread_t *thread" "const pthread_attr_t *attr" "void *(*start_routine)(void *)" "void *arg"
46 function is used to create a new thread, with attributes specified by
50 is NULL, the default attributes are used. If the attributes specified by
52 are modified later, the thread's attributes are not affected. Upon
55 will store the ID of the created thread in the location specified by
58 The thread is created executing
62 as its sole argument. If the
64 returns, the effect is as if there was an implicit call to
66 using the return value of
68 as the exit status. Note that the thread in which
70 was originally invoked differs from this. When it returns from
72 the effect is as if there was an implicit call to
74 using the return value of
78 The signal state of the new thread is initialized as:
79 .Bl -bullet -offset indent
81 The signal mask is inherited from the creating thread.
83 The set of signals pending for the new thread is empty.
88 function will return zero. Otherwise an error number will be returned to
95 The system lacked the necessary resources to create another thread, or
96 the system-imposed limit on the total number of threads in a process
97 [PTHREAD_THREADS_MAX] would be exceeded.
99 The value specified by
106 .Xr pthread_cleanup_pop 3 ,
107 .Xr pthread_cleanup_push 3 ,
112 conforms to ISO/IEC 9945-1 ANSI/IEEE
114 Std 1003.1 Second Edition 1996-07-12.