bionic_time_conversions.cpp revision 1dc9e472e19acfe6dc7f41e429236e7eef7ceda1
11dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 21dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 31dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * All rights reserved. 41dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 51dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Redistribution and use in source and binary forms, with or without 61dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * modification, are permitted provided that the following conditions 71dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * are met: 81dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * * Redistributions of source code must retain the above copyright 91dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer. 101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * * Redistributions in binary form must reproduce the above copyright 111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer in 121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * the documentation and/or other materials provided with the 131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * distribution. 141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * SUCH DAMAGE. 271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/select.h> 291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <signal.h> 301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <pthread.h> 311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectint 331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectpselect(int n, fd_set* readfds, fd_set* writefds, fd_set* errfds, 341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct timespec* timeout, const sigset_t* sigmask) 351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project sigset_t oldmask; 371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int result; 381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct timeval tv, *tv_timeout = NULL; 391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (sigmask != NULL) 411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_sigmask( SIG_SETMASK, sigmask, &oldmask ); 421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (timeout != NULL) { 441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project tv_timeout = &tv; 451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project tv.tv_sec = timeout->tv_sec; 461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project tv.tv_usec = (timeout->tv_nsec + 999)/1000; // round up 471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (tv.tv_usec >= 1000000) { 481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project tv.tv_sec += 1; 491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project tv.tv_usec -= 1000000; 501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project result = select( n, readfds, writefds, errfds, tv_timeout ); 541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (sigmask != NULL) 561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_sigmask( SIG_SETMASK, &oldmask, NULL ); 571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return result; 591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 60