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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <iostream>
#include <cassert>
#ifdef POSIX
extern "C" {
#include <errno.h>
}
#endif // POSIX
#include "talk/base/testclient.h"
#include "talk/base/time.h"
namespace talk_base {
// DESIGN: Each packet received is posted to ourselves as a message on the
// thread given to the constructor. When we receive the message, we
// put it into a list of packets. We take the latter step so that we
// can wait for a new packet to arrive by calling Get/Dispatch on the
// thread.
TestClient::TestClient(AsyncPacketSocket* socket, Thread* thread)
: thread_(thread), socket_(socket) {
if (!thread_)
thread_ = Thread::Current();
packets_ = new std::vector<Packet*>();
socket_->SignalReadPacket.connect(this, &TestClient::OnPacket);
}
TestClient::~TestClient() {
delete socket_;
for (unsigned i = 0; i < packets_->size(); i++)
delete (*packets_)[i];
}
void TestClient::Send(const char* buf, size_t size) {
int result = socket_->Send(buf, size);
if (result < 0) {
std::cerr << "send: " << std::strerror(errno) << std::endl;
exit(1);
}
}
void TestClient::SendTo(
const char* buf, size_t size, const SocketAddress& dest) {
int result = socket_->SendTo(buf, size, dest);
if (result < 0) {
std::cerr << "sendto: " << std::strerror(errno) << std::endl;
exit(1);
}
}
void TestClient::OnPacket(
const char* buf, size_t size, const SocketAddress& remote_addr,
AsyncPacketSocket* socket) {
thread_->Post(this, 0, new Packet(remote_addr, buf, size));
}
void TestClient::OnMessage(Message *pmsg) {
assert(pmsg->pdata);
packets_->push_back(new Packet(*static_cast<Packet*>(pmsg->pdata)));
}
TestClient::Packet* TestClient::NextPacket() {
// If no packets are currently available, we go into a get/dispatch loop for
// at most 1 second. 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.
if (packets_->size() == 0) {
uint32 msNext = 1000;
uint32 msEnd = GetMillisecondCount() + msNext;
while (true) {
Message msg;
if (!thread_->Get(&msg, msNext))
break;
thread_->Dispatch(&msg);
uint32 msCur = GetMillisecondCount();
if (msCur >= msEnd)
break;
msNext = msEnd - msCur;
if (packets_->size() > 0)
break;
}
}
if (packets_->size() == 0) {
return 0;
} else {
// Return the first packet placed in the queue.
Packet* packet = packets_->front();
packets_->erase(packets_->begin());
return packet;
}
}
void TestClient::CheckNextPacket(
const char* buf, size_t size, SocketAddress* addr) {
Packet* packet = NextPacket();
assert(packet);
assert(packet->size == size);
assert(std::memcmp(packet->buf, buf, size) == 0);
if (addr)
*addr = packet->addr;
}
void TestClient::CheckNoPacket() {
Packet* packet = NextPacket();
assert(!packet);
}
TestClient::Packet::Packet(const SocketAddress& a, const char* b, size_t s)
: addr(a), buf(0), size(s) {
buf = new char[size];
memcpy(buf, b, size);
}
TestClient::Packet::Packet(const Packet& p)
: addr(p.addr), buf(0), size(p.size) {
buf = new char[size];
memcpy(buf, p.buf, size);
}
TestClient::Packet::~Packet() {
delete buf;
}
} // namespace talk_base
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