55 строки
1.9 KiB
C
55 строки
1.9 KiB
C
/*
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* librd - Rapid Development C library
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*
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* Copyright (c) 2012-2013, Magnus Edenhill
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <signal.h>
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#define RD_SIG_ALL -1
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#define RD_SIG_END -2
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extern sigset_t rd_intr_sigset;
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extern int rd_intr_blocked;
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static inline void rd_intr_block (void) RD_UNUSED;
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static inline void rd_intr_block (void) {
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if (rd_intr_blocked++)
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return;
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sigprocmask(SIG_BLOCK, &rd_intr_sigset, NULL);
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}
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static inline void rd_intr_unblock (void) RD_UNUSED;
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static inline void rd_intr_unblock (void) {
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assert(rd_intr_blocked > 0);
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if (--rd_intr_blocked)
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return;
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sigprocmask(SIG_UNBLOCK, &rd_intr_sigset, NULL);
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}
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