projects / thirdparty / man-pages.git / blame
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| f37855d1 | 1 | .\" Copyright (c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de) |
| 031cb604 | 2 | .\" and Copyright (C) 2008 Michael Kerrisk <mtk.manpages@gmail.com> |
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3 | .\" |
| 4 | .\" Permission is granted to make and distribute verbatim copies of this | |
| 5 | .\" manual provided the copyright notice and this permission notice are | |
| 6 | .\" preserved on all copies. | |
| 7 | .\" | |
| 8 | .\" Permission is granted to copy and distribute modified versions of this | |
| 9 | .\" manual under the conditions for verbatim copying, provided that the | |
| 10 | .\" entire resulting derived work is distributed under the terms of a | |
| 11 | .\" permission notice identical to this one. | |
| c13182ef | 12 | .\" |
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13 | .\" Since the Linux kernel and libraries are constantly changing, this |
| 14 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 15 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 16 | .\" the use of the information contained herein. The author(s) may not | |
| 17 | .\" have taken the same level of care in the production of this manual, | |
| 18 | .\" which is licensed free of charge, as they might when working | |
| 19 | .\" professionally. | |
| c13182ef | 20 | .\" |
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21 | .\" Formatted or processed versions of this manual, if unaccompanied by |
| 22 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 23 | .\" License. | |
| 24 | .\" Modified Sat Jul 24 18:40:56 1993 by Rik Faith (faith@cs.unc.edu) | |
| 25 | .\" Modified 1995 by Mike Battersby (mib@deakin.edu.au) | |
| 26 | .\" | |
| f24766e3 | 27 | .TH RAISE 3 2012-04-20 "GNU" "Linux Programmer's Manual" |
| fea681da | 28 | .SH NAME |
| 031cb604 | 29 | raise \- send a signal to the caller |
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30 | .SH SYNOPSIS |
| 31 | .nf | |
| 32 | .B #include <signal.h> | |
| 33 | .sp | |
| 34 | .BI "int raise(int " sig ); | |
| 35 | .fi | |
| 36 | .SH DESCRIPTION | |
| c13182ef | 37 | The |
| 63aa9df0 | 38 | .BR raise () |
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39 | function sends a signal to the calling process or thread. |
| 40 | In a single-threaded program it is equivalent to | |
| fea681da | 41 | .sp |
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42 | .in +4n |
| 43 | .nf | |
| 44 | kill(getpid(), sig); | |
| 45 | .fi | |
| 46 | .in | |
| 47 | .PP | |
| 48 | In a multithreaded program it is equivalent to | |
| 49 | .sp | |
| 50 | .in +4n | |
| 51 | .nf | |
| 52 | pthread_kill(pthread_self(), sig); | |
| 53 | .fi | |
| 54 | .in | |
| 55 | .PP | |
| 56 | If the signal causes a handler to be called, | |
| 2737254c | 57 | .BR raise () |
| 031cb604 | 58 | will only return after the signal handler has returned. |
| 47297adb | 59 | .SH RETURN VALUE |
| 2737254c | 60 | .BR raise () |
| c7094399 | 61 | returns 0 on success, and nonzero for failure. |
| 47297adb | 62 | .SH CONFORMING TO |
| 031cb604 | 63 | C89, C99, POSIX.1-2001. |
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64 | .SH NOTES |
| 65 | Since version 2.3.3, glibc implements | |
| 66 | .BR raise () | |
| 67 | by calling | |
| 68 | .BR tgkill (2), | |
| 69 | .\" 2.3.2 used the obsolete tkill(), if available. | |
| 70 | if the kernel supports that system call. | |
| 71 | Older glibc versions implemented | |
| 72 | .BR raise () | |
| 73 | using | |
| 74 | .BR kill (2). | |
| 47297adb | 75 | .SH SEE ALSO |
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76 | .BR getpid (2), |
| 77 | .BR kill (2), | |
| 031cb604 | 78 | .BR sigaction (2), |
| f0c34053 | 79 | .BR signal (2), |
| baf17bc4 | 80 | .BR pthread_kill (3), |
| 031cb604 | 81 | .BR signal (7) |