| 1 | /* Block a thread. Mach version. |
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| 2 | Copyright (C) 2000-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <assert.h> |
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| 20 | #include <errno.h> |
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| 21 | |
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| 22 | #include <mach.h> |
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| 23 | #include <mach/message.h> |
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| 24 | |
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| 25 | #include <pt-internal.h> |
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| 26 | |
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| 27 | #ifndef MSG_OPTIONS |
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| 28 | # define MSG_OPTIONS 0 |
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| 29 | #endif |
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| 30 | |
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| 31 | #ifndef RETTYPE |
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| 32 | # define RETTYPE void |
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| 33 | #endif |
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| 34 | |
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| 35 | #ifndef RETURN |
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| 36 | # define RETURN(val) |
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| 37 | #endif |
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| 38 | |
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| 39 | /* Block THREAD. */ |
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| 40 | RETTYPE |
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| 41 | __pthread_block (struct __pthread *thread) |
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| 42 | { |
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| 43 | mach_msg_header_t msg; |
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| 44 | error_t err; |
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| 45 | |
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| 46 | err = __mach_msg (&msg, MACH_RCV_MSG | MSG_OPTIONS, 0, sizeof msg, |
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| 47 | thread->wakeupmsg.msgh_remote_port, |
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| 48 | MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL); |
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| 49 | if ((MSG_OPTIONS & MACH_RCV_INTERRUPT) && err == MACH_RCV_INTERRUPTED) |
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| 50 | RETURN(EINTR); |
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| 51 | assert_perror (err); |
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| 52 | RETURN(0); |
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| 53 | } |
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| 54 | |
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