| 1 | /* Copyright (C) 2001-2022 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <netdb.h> |
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| 19 | #include <pthread.h> |
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| 20 | #include <shlib-compat.h> |
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| 21 | #include <gai_misc.h> |
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| 22 | |
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| 23 | |
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| 24 | int |
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| 25 | __gai_cancel (struct gaicb *gaicbp) |
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| 26 | { |
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| 27 | int result = 0; |
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| 28 | int status; |
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| 29 | |
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| 30 | /* Request the mutex. */ |
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| 31 | __pthread_mutex_lock (&__gai_requests_mutex); |
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| 32 | |
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| 33 | /* Find the request among those queued but not yet running. */ |
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| 34 | status = __gai_remove_request (gaicbp); |
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| 35 | if (status == 0) |
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| 36 | result = EAI_CANCELED; |
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| 37 | else if (status > 0) |
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| 38 | result = EAI_NOTCANCELED; |
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| 39 | else |
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| 40 | result = EAI_ALLDONE; |
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| 41 | |
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| 42 | /* Release the mutex. */ |
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| 43 | __pthread_mutex_unlock (&__gai_requests_mutex); |
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| 44 | |
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| 45 | return result; |
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| 46 | } |
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| 47 | #if PTHREAD_IN_LIBC |
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| 48 | versioned_symbol (libc, __gai_cancel, gai_cancel, GLIBC_2_34); |
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| 49 | |
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| 50 | # if OTHER_SHLIB_COMPAT (libanl, GLIBC_2_2_3, GLIBC_2_34) |
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| 51 | compat_symbol (libanl, __gai_cancel, gai_cancel, GLIBC_2_2_3); |
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| 52 | # endif |
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| 53 | #else /* !PTHREAD_IN_LIBC */ |
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| 54 | strong_alias (__gai_cancel, gai_cancel) |
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| 55 | #endif /* !PTHREAD_IN_LIBC */ |
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| 56 | |
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