fa9ea48ddf
Bionic/Android support eventfd, so there is really no reason to have PipeEvent around any more. This change gets rid of it in LibAAH_RTP and replaces it with eventfds. Change-Id: I841fcb71bf5015d521d7517c69f44eac0ea92278 Signed-off-by: John Grossman <johngro@google.com>
103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __UTILS_H__
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#define __UTILS_H__
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#include <stdint.h>
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#include <unistd.h>
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#include <netinet/in.h>
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#include <media/stagefright/foundation/ABase.h>
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#include <utils/Timers.h>
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#define IP_PRINTF_HELPER(a) ((a >> 24) & 0xFF), ((a >> 16) & 0xFF), \
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((a >> 8) & 0xFF), (a & 0xFF)
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namespace android {
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// Definition of a helper class used to track things like when we need to
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// transmit a heartbeat, or when we will need to wake up and trim the retry
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// buffers.
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class Timeout {
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public:
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Timeout() : mSystemEndTime(0) { }
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// Set a timeout which should occur msec milliseconds from now.
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// Negative values will cancel any current timeout;
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void setTimeout(int msec);
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// Return the number of milliseconds until the timeout occurs, or -1 if
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// no timeout is scheduled.
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int msecTillTimeout(nsecs_t nowTime);
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int msecTillTimeout() { return msecTillTimeout(systemTime()); }
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private:
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// The systemTime() at which the timeout will be complete, or 0 if no
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// timeout is currently scheduled.
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nsecs_t mSystemEndTime;
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DISALLOW_EVIL_CONSTRUCTORS(Timeout);
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};
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inline bool matchSockaddrs(const struct sockaddr_in* a,
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const struct sockaddr_in* b) {
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return ((a->sin_family == b->sin_family) &&
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(a->sin_addr.s_addr == b->sin_addr.s_addr) &&
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(a->sin_port == b->sin_port));
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}
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inline bool isMulticastSockaddr(const struct sockaddr_in* sa) {
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if (sa->sin_family != AF_INET)
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return false;
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uint32_t addr = ntohl(sa->sin_addr.s_addr);
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return ((addr & 0xF0000000) == 0xE0000000);
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}
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// Return the minimum timeout between a and b where timeouts less than 0 are
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// considered to be infinite
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inline int minTimeout(int a, int b) {
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if (a < 0) {
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return b;
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}
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if (b < 0) {
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return a;
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}
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return ((a < b) ? a : b);
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}
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inline void signalEventFD(int fd) {
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if (fd >= 0) {
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uint64_t tmp = 1;
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::write(fd, &tmp, sizeof(tmp));
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}
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}
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inline void clearEventFD(int fd) {
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if (fd >= 0) {
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uint64_t tmp;
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::read(fd, &tmp, sizeof(tmp));
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}
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}
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} // namespace android
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#endif // __UTILS_H__
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