projects / thirdparty / man-pages.git / blame
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| a1eaacb1 | 1 | '\" t |
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2 | .\" Copyright (c) 2008 Linux Foundation, written by Michael Kerrisk |
| 3 | .\" <mtk.manpages@gmail.com> | |
| 4 | .\" | |
| 5fbde956 | 5 | .\" SPDX-License-Identifier: Linux-man-pages-copyleft |
| 8c80f3c6 | 6 | .\" |
| 4c1c5274 | 7 | .TH pthread_equal 3 (date) "Linux man-pages (unreleased)" |
| 8c80f3c6 | 8 | .SH NAME |
| 67ca98a7 | 9 | pthread_equal \- compare thread IDs |
| 49474d23 AC |
10 | .SH LIBRARY |
| 11 | POSIX threads library | |
| 8fc3b2cf | 12 | .RI ( libpthread ", " \-lpthread ) |
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13 | .SH SYNOPSIS |
| 14 | .nf | |
| 15 | .B #include <pthread.h> | |
| dbfe9c70 | 16 | .PP |
| 8c80f3c6 | 17 | .BI "int pthread_equal(pthread_t " t1 ", pthread_t " t2 ); |
| 6030f2d8 | 18 | .fi |
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19 | .SH DESCRIPTION |
| 20 | The | |
| 21 | .BR pthread_equal () | |
| 22 | function compares two thread identifiers. | |
| 23 | .SH RETURN VALUE | |
| 24 | If the two thread IDs are equal, | |
| 25 | .BR pthread_equal () | |
| c7094399 | 26 | returns a nonzero value; otherwise, it returns 0. |
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27 | .SH ERRORS |
| 28 | This function always succeeds. | |
| 6b0949f0 | 29 | .SH ATTRIBUTES |
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30 | For an explanation of the terms used in this section, see |
| 31 | .BR attributes (7). | |
| 32 | .TS | |
| 33 | allbox; | |
| c466875e | 34 | lbx lb lb |
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35 | l l l. |
| 36 | Interface Attribute Value | |
| 37 | T{ | |
| 9e54434e BR |
38 | .na |
| 39 | .nh | |
| 6b0949f0 | 40 | .BR pthread_equal () |
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41 | T} Thread safety MT-Safe |
| 42 | .TE | |
| c466875e | 43 | .sp 1 |
| 3113c7f3 | 44 | .SH STANDARDS |
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45 | POSIX.1-2008. |
| 46 | .SH HISTORY | |
| 47 | POSIX.1-2001. | |
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48 | .SH NOTES |
| 49 | The | |
| 50 | .BR pthread_equal () | |
| 51 | function is necessary because thread IDs should be considered opaque: | |
| 52 | there is no portable way for applications to directly compare two | |
| 53 | .I pthread_t | |
| 54 | values. | |
| 55 | .SH SEE ALSO | |
| 56 | .BR pthread_create (3), | |
| 57 | .BR pthread_self (3), | |
| 58 | .BR pthreads (7) |