Reland "Move webrtc/{base => rtc_base}" (https://codereview.webrtc.org/2877023002)

Reland the base->rtc_base without adding stub headers (will be
done in follow-up CL). This preserves git blame history of all files.

BUG=webrtc:7634
NOTRY=True
TBR=kwiberg@webrtc.org

Change-Id: Iea3bb6f3f67b8374c96337b63e8f5aa3e6181012
Reviewed-on: https://chromium-review.googlesource.com/554611
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#18821}

webrtc/rtc_base/testclient.cc

@@ -0,0 +1,171 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "webrtc/base/testclient.h"
+
+#include "webrtc/base/gunit.h"
+#include "webrtc/base/ptr_util.h"
+#include "webrtc/base/thread.h"
+#include "webrtc/base/timeutils.h"
+
+namespace rtc {
+
+// DESIGN: Each packet received is put it into a list of packets.
+//         Callers can retrieve received packets from any thread by calling
+//         NextPacket.
+
+TestClient::TestClient(std::unique_ptr<AsyncPacketSocket> socket)
+    : TestClient(std::move(socket), nullptr) {}
+
+TestClient::TestClient(std::unique_ptr<AsyncPacketSocket> socket,
+                       FakeClock* fake_clock)
+    : fake_clock_(fake_clock),
+      socket_(std::move(socket)),
+      prev_packet_timestamp_(-1) {
+  socket_->SignalReadPacket.connect(this, &TestClient::OnPacket);
+  socket_->SignalReadyToSend.connect(this, &TestClient::OnReadyToSend);
+}
+
+TestClient::~TestClient() {}
+
+bool TestClient::CheckConnState(AsyncPacketSocket::State state) {
+  // Wait for our timeout value until the socket reaches the desired state.
+  int64_t end = TimeAfter(kTimeoutMs);
+  while (socket_->GetState() != state && TimeUntil(end) > 0) {
+    AdvanceTime(1);
+  }
+  return (socket_->GetState() == state);
+}
+
+int TestClient::Send(const char* buf, size_t size) {
+  rtc::PacketOptions options;
+  return socket_->Send(buf, size, options);
+}
+
+int TestClient::SendTo(const char* buf, size_t size,
+                       const SocketAddress& dest) {
+  rtc::PacketOptions options;
+  return socket_->SendTo(buf, size, dest, options);
+}
+
+std::unique_ptr<TestClient::Packet> TestClient::NextPacket(int timeout_ms) {
+  // If no packets are currently available, we go into a get/dispatch loop for
+  // at most timeout_ms.  If, during the loop, a packet arrives, then we can
+  // stop early and return it.
+
+  // Note that the case where no packet arrives is important.  We often want to
+  // test that a packet does not arrive.
+
+  // Note also that we only try to pump our current thread's message queue.
+  // Pumping another thread's queue could lead to messages being dispatched from
+  // the wrong thread to non-thread-safe objects.
+
+  int64_t end = TimeAfter(timeout_ms);
+  while (TimeUntil(end) > 0) {
+    {
+      CritScope cs(&crit_);
+      if (packets_.size() != 0) {
+        break;
+      }
+    }
+    AdvanceTime(1);
+  }
+
+  // Return the first packet placed in the queue.
+  std::unique_ptr<Packet> packet;
+  CritScope cs(&crit_);
+  if (packets_.size() > 0) {
+    packet = std::move(packets_.front());
+    packets_.erase(packets_.begin());
+  }
+
+  return packet;
+}
+
+bool TestClient::CheckNextPacket(const char* buf, size_t size,
+                                 SocketAddress* addr) {
+  bool res = false;
+  std::unique_ptr<Packet> packet = NextPacket(kTimeoutMs);
+  if (packet) {
+    res = (packet->size == size && memcmp(packet->buf, buf, size) == 0 &&
+           CheckTimestamp(packet->packet_time.timestamp));
+    if (addr)
+      *addr = packet->addr;
+  }
+  return res;
+}
+
+bool TestClient::CheckTimestamp(int64_t packet_timestamp) {
+  bool res = true;
+  if (packet_timestamp == -1) {
+    res = false;
+  }
+  if (prev_packet_timestamp_ != -1) {
+    if (packet_timestamp < prev_packet_timestamp_) {
+      res = false;
+    }
+  }
+  prev_packet_timestamp_ = packet_timestamp;
+  return res;
+}
+
+void TestClient::AdvanceTime(int ms) {
+  // If the test is using a fake clock, we must advance the fake clock to
+  // advance time. Otherwise, ProcessMessages will work.
+  if (fake_clock_) {
+    SIMULATED_WAIT(false, ms, *fake_clock_);
+  } else {
+    Thread::Current()->ProcessMessages(1);
+  }
+}
+
+bool TestClient::CheckNoPacket() {
+  return NextPacket(kNoPacketTimeoutMs) == nullptr;
+}
+
+int TestClient::GetError() {
+  return socket_->GetError();
+}
+
+int TestClient::SetOption(Socket::Option opt, int value) {
+  return socket_->SetOption(opt, value);
+}
+
+void TestClient::OnPacket(AsyncPacketSocket* socket, const char* buf,
+                          size_t size, const SocketAddress& remote_addr,
+                          const PacketTime& packet_time) {
+  CritScope cs(&crit_);
+  packets_.push_back(MakeUnique<Packet>(remote_addr, buf, size, packet_time));
+}
+
+void TestClient::OnReadyToSend(AsyncPacketSocket* socket) {
+  ++ready_to_send_count_;
+}
+
+TestClient::Packet::Packet(const SocketAddress& a,
+                           const char* b,
+                           size_t s,
+                           const PacketTime& packet_time)
+    : addr(a), buf(0), size(s), packet_time(packet_time) {
+  buf = new char[size];
+  memcpy(buf, b, size);
+}
+
+TestClient::Packet::Packet(const Packet& p)
+    : addr(p.addr), buf(0), size(p.size), packet_time(p.packet_time) {
+  buf = new char[size];
+  memcpy(buf, p.buf, size);
+}
+
+TestClient::Packet::~Packet() {
+  delete[] buf;
+}
+
+}  // namespace rtc