54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
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/* Block a thread. Mach version.
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Copyright (C) 2000-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <assert.h>
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#include <errno.h>
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#include <mach.h>
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#include <mach/message.h>
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#include <pt-internal.h>
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#ifndef MSG_OPTIONS
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# define MSG_OPTIONS 0
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#endif
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#ifndef RETTYPE
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# define RETTYPE void
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#endif
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#ifndef RETURN
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# define RETURN(val)
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#endif
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/* Block THREAD. */
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RETTYPE
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__pthread_block (struct __pthread *thread)
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{
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mach_msg_header_t msg;
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error_t err;
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err = __mach_msg (&msg, MACH_RCV_MSG | MSG_OPTIONS, 0, sizeof msg,
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thread->wakeupmsg.msgh_remote_port,
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MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
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if ((MSG_OPTIONS & MACH_RCV_INTERRUPT) && err == MACH_RCV_INTERRUPTED)
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RETURN(EINTR);
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assert_perror (err);
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RETURN(0);
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}
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