1RAISE(3P)                  POSIX Programmer's Manual                 RAISE(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

12       raise — send a signal to the executing process
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SYNOPSIS

15       #include <signal.h>
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17       int raise(int sig);
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DESCRIPTION

20       The functionality described on this reference page is aligned with  the
21       ISO C  standard.  Any  conflict between the requirements described here
22       and the ISO C standard is unintentional. This  volume  of  POSIX.1‐2017
23       defers to the ISO C standard.
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25       The  raise() function shall send the signal sig to the executing thread
26       or process.  If a signal handler is called, the raise() function  shall
27       not return until after the signal handler does.
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29       The effect of the raise() function shall be equivalent to calling:
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32           pthread_kill(pthread_self(), sig);
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RETURN VALUE

35       Upon  successful completion, 0 shall be returned. Otherwise, a non-zero
36       value shall be returned and errno shall be set to indicate the error.
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ERRORS

39       The raise() function shall fail if:
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41       EINVAL The value of the sig argument is an invalid signal number.
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43       The following sections are informative.
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EXAMPLES

46       None.
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APPLICATION USAGE

49       None.
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RATIONALE

52       The term ``thread'' is an extension to the ISO C standard.
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FUTURE DIRECTIONS

55       None.
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SEE ALSO

58       kill(), sigaction()
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60       The Base Definitions volume of POSIX.1‐2017, <signal.h>, <sys_types.h>
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63       Portions of this text are reprinted and reproduced in  electronic  form
64       from  IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
65       table Operating System Interface (POSIX), The Open Group Base  Specifi‐
66       cations  Issue  7, 2018 Edition, Copyright (C) 2018 by the Institute of
67       Electrical and Electronics Engineers, Inc and The Open Group.   In  the
68       event of any discrepancy between this version and the original IEEE and
69       The Open Group Standard, the original IEEE and The Open Group  Standard
70       is  the  referee document. The original Standard can be obtained online
71       at http://www.opengroup.org/unix/online.html .
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73       Any typographical or formatting errors that appear  in  this  page  are
74       most likely to have been introduced during the conversion of the source
75       files to man page format. To report such errors,  see  https://www.ker‐
76       nel.org/doc/man-pages/reporting_bugs.html .
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80IEEE/The Open Group                  2017                            RAISE(3P)
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