Home | History | Annotate | Download | only in base 
      1 /*
      2  * libjingle
      3  * Copyright 2004--2005, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include "talk/base/testclient.h"
     29 #include "talk/base/thread.h"
     30 #include "talk/base/timeutils.h"
     31 
     32 namespace talk_base {
     33 
     34 // DESIGN: Each packet received is put it into a list of packets.
     35 //         Callers can retrieve received packets from any thread by calling
     36 //         NextPacket.
     37 
     38 TestClient::TestClient(AsyncPacketSocket* socket)
     39     : socket_(socket), ready_to_send_(false) {
     40   packets_ = new std::vector<Packet*>();
     41   socket_->SignalReadPacket.connect(this, &TestClient::OnPacket);
     42   socket_->SignalReadyToSend.connect(this, &TestClient::OnReadyToSend);
     43 }
     44 
     45 TestClient::~TestClient() {
     46   delete socket_;
     47   for (unsigned i = 0; i < packets_->size(); i++)
     48     delete (*packets_)[i];
     49   delete packets_;
     50 }
     51 
     52 bool TestClient::CheckConnState(AsyncPacketSocket::State state) {
     53   // Wait for our timeout value until the socket reaches the desired state.
     54   uint32 end = TimeAfter(kTimeout);
     55   while (socket_->GetState() != state && TimeUntil(end) > 0)
     56     Thread::Current()->ProcessMessages(1);
     57   return (socket_->GetState() == state);
     58 }
     59 
     60 int TestClient::Send(const char* buf, size_t size) {
     61   return socket_->Send(buf, size);
     62 }
     63 
     64 int TestClient::SendTo(const char* buf, size_t size,
     65                        const SocketAddress& dest) {
     66   return socket_->SendTo(buf, size, dest);
     67 }
     68 
     69 TestClient::Packet* TestClient::NextPacket() {
     70   // If no packets are currently available, we go into a get/dispatch loop for
     71   // at most 1 second.  If, during the loop, a packet arrives, then we can stop
     72   // early and return it.
     73 
     74   // Note that the case where no packet arrives is important.  We often want to
     75   // test that a packet does not arrive.
     76 
     77   // Note also that we only try to pump our current thread's message queue.
     78   // Pumping another thread's queue could lead to messages being dispatched from
     79   // the wrong thread to non-thread-safe objects.
     80 
     81   uint32 end = TimeAfter(kTimeout);
     82   while (packets_->size() == 0 && TimeUntil(end) > 0)
     83     Thread::Current()->ProcessMessages(1);
     84 
     85   // Return the first packet placed in the queue.
     86   Packet* packet = NULL;
     87   if (packets_->size() > 0) {
     88     CritScope cs(&crit_);
     89     packet = packets_->front();
     90     packets_->erase(packets_->begin());
     91   }
     92 
     93   return packet;
     94 }
     95 
     96 bool TestClient::CheckNextPacket(const char* buf, size_t size,
     97                                  SocketAddress* addr) {
     98   bool res = false;
     99   Packet* packet = NextPacket();
    100   if (packet) {
    101     res = (packet->size == size && std::memcmp(packet->buf, buf, size) == 0);
    102     if (addr)
    103       *addr = packet->addr;
    104     delete packet;
    105   }
    106   return res;
    107 }
    108 
    109 bool TestClient::CheckNoPacket() {
    110   bool res;
    111   Packet* packet = NextPacket();
    112   res = (packet == NULL);
    113   delete packet;
    114   return res;
    115 }
    116 
    117 int TestClient::GetError() {
    118   return socket_->GetError();
    119 }
    120 
    121 int TestClient::SetOption(Socket::Option opt, int value) {
    122   return socket_->SetOption(opt, value);
    123 }
    124 
    125 bool TestClient::ready_to_send() const {
    126   return ready_to_send_;
    127 }
    128 
    129 void TestClient::OnPacket(AsyncPacketSocket* socket, const char* buf,
    130                           size_t size, const SocketAddress& remote_addr) {
    131   CritScope cs(&crit_);
    132   packets_->push_back(new Packet(remote_addr, buf, size));
    133 }
    134 
    135 void TestClient::OnReadyToSend(AsyncPacketSocket* socket) {
    136   ready_to_send_ = true;
    137 }
    138 
    139 TestClient::Packet::Packet(const SocketAddress& a, const char* b, size_t s)
    140     : addr(a), buf(0), size(s) {
    141   buf = new char[size];
    142   memcpy(buf, b, size);
    143 }
    144 
    145 TestClient::Packet::Packet(const Packet& p)
    146     : addr(p.addr), buf(0), size(p.size) {
    147   buf = new char[size];
    148   memcpy(buf, p.buf, size);
    149 }
    150 
    151 TestClient::Packet::~Packet() {
    152   delete[] buf;
    153 }
    154 
    155 }  // namespace talk_base
    156