60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
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/*
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* Copyright (C) 2008 The Android Open Source Project
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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
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/select.h>
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#include <signal.h>
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#include <pthread.h>
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int
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pselect(int n, fd_set* readfds, fd_set* writefds, fd_set* errfds,
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const struct timespec* timeout, const sigset_t* sigmask)
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{
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sigset_t oldmask;
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int result;
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struct timeval tv, *tv_timeout = NULL;
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if (sigmask != NULL)
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pthread_sigmask( SIG_SETMASK, sigmask, &oldmask );
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if (timeout != NULL) {
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tv_timeout = &tv;
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tv.tv_sec = timeout->tv_sec;
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tv.tv_usec = (timeout->tv_nsec + 999)/1000; // round up
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if (tv.tv_usec >= 1000000) {
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tv.tv_sec += 1;
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tv.tv_usec -= 1000000;
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}
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}
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result = select( n, readfds, writefds, errfds, tv_timeout );
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if (sigmask != NULL)
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pthread_sigmask( SIG_SETMASK, &oldmask, NULL );
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return result;
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}
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