Add media/libaah_rtp
RTP library used to broadcast media from one device to a collection
of listeners. Handles failures/retries/etc.
This is a squashed merge from master-tungsten of the following changes:
commit e1a5101fe627d71739a7c4263bb3a65c7bc44385
Author: Jason Simmons <jsimmons@google.com>
Date: Fri Aug 12 13:24:21 2011 -0700
Hold ThreadWrapper in a ref-counting pointer
Change-Id: Iaf3343182e37bcc0ca99fbaf8f9bbb8c4984072a
commit 89b90d62e164ff3db27c9cba85255fc476d2dd96
Author: Jason Simmons <jsimmons@google.com>
Date: Wed Aug 10 13:08:25 2011 -0700
Update the Tungsten TX player to use HTTPBase
Change-Id: I9f7ecf1b4b496cec1815284dbcdb958a43284169
commit 43be3231034ff8537fdd84422a7954780038671f
Author: John Grossman <johngro@google.com>
Date: Mon Jun 27 18:59:12 2011 -0700
Move libaah_rtp over from the vendor directory.
Also move factor PipeEvent out into utils.
Change-Id: Id3877c66efe22d771cf3ef4877107e431b828e37
Change-Id: I5fe1ea941c09204d7b33f15f4e2b2ab320dc468b
Signed-off-by: Mike J. Chen <mjchen@google.com>
Signed-off-by: John Grossman <johngro@google.com>
Signed-off-by: Jason Simmons <jsimmons@google.com>
diff --git a/media/libaah_rtp/pipe_event.cpp b/media/libaah_rtp/pipe_event.cpp
new file mode 100644
index 0000000..96c674b
--- /dev/null
+++ b/media/libaah_rtp/pipe_event.cpp
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "LibAAH_RTP"
+#include <utils/Log.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <unistd.h>
+
+#include "pipe_event.h"
+
+namespace android {
+
+PipeEvent::PipeEvent() {
+ pipe_[0] = -1;
+ pipe_[1] = -1;
+
+ // Create the pipe.
+ if (pipe(pipe_) >= 0) {
+ // Set non-blocking mode on the read side of the pipe so we can
+ // easily drain it whenever we wakeup.
+ fcntl(pipe_[0], F_SETFL, O_NONBLOCK);
+ } else {
+ LOGE("Failed to create pipe event %d %d %d",
+ pipe_[0], pipe_[1], errno);
+ pipe_[0] = -1;
+ pipe_[1] = -1;
+ }
+}
+
+PipeEvent::~PipeEvent() {
+ if (pipe_[0] >= 0) {
+ close(pipe_[0]);
+ }
+
+ if (pipe_[1] >= 0) {
+ close(pipe_[1]);
+ }
+}
+
+void PipeEvent::clearPendingEvents() {
+ char drain_buffer[16];
+ while (read(pipe_[0], drain_buffer, sizeof(drain_buffer)) > 0) {
+ // No body.
+ }
+}
+
+bool PipeEvent::wait(int timeout) {
+ struct pollfd wait_fd;
+
+ wait_fd.fd = getWakeupHandle();
+ wait_fd.events = POLLIN;
+ wait_fd.revents = 0;
+
+ int res = poll(&wait_fd, 1, timeout);
+
+ if (res < 0) {
+ LOGE("Wait error in PipeEvent; sleeping to prevent overload!");
+ usleep(1000);
+ }
+
+ return (res > 0);
+}
+
+void PipeEvent::setEvent() {
+ char foo = 'q';
+ write(pipe_[1], &foo, 1);
+}
+
+} // namespace android
+