- Library code update
- project update (added Eigen) git-svn-id: http://moon:8086/svn/software/trunk/projects/mpsk_rx_gui@94 b431acfa-c32f-4a4a-93f1-934dc6c82436
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@@ -27,7 +27,7 @@ enum { magicMastSlaveConnectionHeader = 0x712baf04 };
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static const char* startMessage = "__ipc_st";
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static const char* killMessage = "__ipc_k_";
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static const char* pingMessage = "__ipc_p_";
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enum { specialMessageSize = 8 };
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enum { specialMessageSize = 8, defaultTimeoutMs = 8000 };
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static String getCommandLinePrefix (const String& commandLineUniqueID)
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{
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@@ -40,7 +40,7 @@ static String getCommandLinePrefix (const String& commandLineUniqueID)
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struct ChildProcessPingThread : public Thread,
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private AsyncUpdater
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{
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ChildProcessPingThread() : Thread ("IPC ping"), timeoutMs (8000)
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ChildProcessPingThread (int timeout) : Thread ("IPC ping"), timeoutMs (timeout)
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{
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pingReceived();
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}
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@@ -84,8 +84,10 @@ private:
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struct ChildProcessMaster::Connection : public InterprocessConnection,
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private ChildProcessPingThread
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{
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Connection (ChildProcessMaster& m, const String& pipeName)
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: InterprocessConnection (false, magicMastSlaveConnectionHeader), owner (m)
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Connection (ChildProcessMaster& m, const String& pipeName, int timeout)
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: InterprocessConnection (false, magicMastSlaveConnectionHeader),
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ChildProcessPingThread (timeout),
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owner (m)
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{
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if (createPipe (pipeName, timeoutMs))
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startThread (4);
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@@ -140,7 +142,7 @@ bool ChildProcessMaster::sendMessageToSlave (const MemoryBlock& mb)
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return false;
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}
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bool ChildProcessMaster::launchSlaveProcess (const File& executable, const String& commandLineUniqueID)
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bool ChildProcessMaster::launchSlaveProcess (const File& executable, const String& commandLineUniqueID, int timeoutMs)
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{
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connection = nullptr;
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jassert (childProcess.kill());
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@@ -153,7 +155,7 @@ bool ChildProcessMaster::launchSlaveProcess (const File& executable, const Strin
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if (childProcess.start (args))
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{
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connection = new Connection (*this, pipeName);
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connection = new Connection (*this, pipeName, timeoutMs <= 0 ? defaultTimeoutMs : timeoutMs);
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if (connection->isConnected())
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{
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@@ -171,8 +173,10 @@ bool ChildProcessMaster::launchSlaveProcess (const File& executable, const Strin
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struct ChildProcessSlave::Connection : public InterprocessConnection,
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private ChildProcessPingThread
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{
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Connection (ChildProcessSlave& p, const String& pipeName)
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: InterprocessConnection (false, magicMastSlaveConnectionHeader), owner (p)
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Connection (ChildProcessSlave& p, const String& pipeName, int timeout)
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: InterprocessConnection (false, magicMastSlaveConnectionHeader),
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ChildProcessPingThread (timeout),
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owner (p)
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{
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connectToPipe (pipeName, timeoutMs);
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startThread (4);
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@@ -237,7 +241,8 @@ bool ChildProcessSlave::sendMessageToMaster (const MemoryBlock& mb)
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}
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bool ChildProcessSlave::initialiseFromCommandLine (const String& commandLine,
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const String& commandLineUniqueID)
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const String& commandLineUniqueID,
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int timeoutMs)
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{
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String prefix (getCommandLinePrefix (commandLineUniqueID));
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@@ -248,7 +253,7 @@ bool ChildProcessSlave::initialiseFromCommandLine (const String& commandLine,
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if (pipeName.isNotEmpty())
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{
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connection = new Connection (*this, pipeName);
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connection = new Connection (*this, pipeName, timeoutMs <= 0 ? defaultTimeoutMs : timeoutMs);
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if (! connection->isConnected())
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connection = nullptr;
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@@ -64,10 +64,16 @@ public:
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The commandLineUniqueID should be a short alphanumeric identifier (no spaces!)
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that matches the string passed to ChildProcessMaster::launchSlaveProcess().
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The timeoutMs parameter lets you specify how long the child process is allowed
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to run without receiving a ping from the master before the master is considered to
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have died, and handleConnectionLost() will be called. Passing <= 0 for this timeout
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makes it use a default value.
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Returns true if the command-line matches and the connection is made successfully.
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*/
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bool initialiseFromCommandLine (const String& commandLine,
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const String& commandLineUniqueID);
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const String& commandLineUniqueID,
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int timeoutMs = 0);
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//==============================================================================
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/** This will be called to deliver messages from the master process.
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@@ -141,11 +147,17 @@ public:
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that gets launched must respond by calling ChildProcessSlave::initialiseFromCommandLine()
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in its startup code, and must use a matching ID to commandLineUniqueID.
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The timeoutMs parameter lets you specify how long the child process is allowed
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to go without sending a ping before it is considered to have died and
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handleConnectionLost() will be called. Passing <= 0 for this timeout makes
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it use a default value.
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If this all works, the method returns true, and you can begin sending and
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receiving messages with the slave process.
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*/
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bool launchSlaveProcess (const File& executableToLaunch,
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const String& commandLineUniqueID);
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const String& commandLineUniqueID,
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int timeoutMs = 0);
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/** This will be called to deliver a message from the slave process.
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The call will probably be made on a background thread, so be careful with your thread-safety!
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@@ -31,7 +31,7 @@ struct InterprocessConnection::ConnectionThread : public Thread
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private:
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InterprocessConnection& owner;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ConnectionThread);
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ConnectionThread)
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};
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//==============================================================================
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@@ -69,11 +69,9 @@ bool InterprocessConnection::connectToSocket (const String& hostName,
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thread->startThread();
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return true;
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}
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else
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{
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socket = nullptr;
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return false;
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}
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socket = nullptr;
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return false;
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}
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bool InterprocessConnection::connectToPipe (const String& pipeName, const int timeoutMs)
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@@ -143,41 +141,43 @@ bool InterprocessConnection::isConnected() const
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String InterprocessConnection::getConnectedHostName() const
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{
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if (pipe != nullptr)
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return "localhost";
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if (socket != nullptr)
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{
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if (! socket->isLocal())
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return socket->getHostName();
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const ScopedLock sl (pipeAndSocketLock);
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return "localhost";
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if (pipe == nullptr && socket == nullptr)
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return String();
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if (socket != nullptr && ! socket->isLocal())
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return socket->getHostName();
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}
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return String();
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return IPAddress::local().toString();
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}
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//==============================================================================
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bool InterprocessConnection::sendMessage (const MemoryBlock& message)
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{
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uint32 messageHeader[2];
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messageHeader [0] = ByteOrder::swapIfBigEndian (magicMessageHeader);
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messageHeader [1] = ByteOrder::swapIfBigEndian ((uint32) message.getSize());
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uint32 messageHeader[2] = { ByteOrder::swapIfBigEndian (magicMessageHeader),
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ByteOrder::swapIfBigEndian ((uint32) message.getSize()) };
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MemoryBlock messageData (sizeof (messageHeader) + message.getSize());
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messageData.copyFrom (messageHeader, 0, sizeof (messageHeader));
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messageData.copyFrom (message.getData(), sizeof (messageHeader), message.getSize());
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int bytesWritten = 0;
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return writeData (messageData.getData(), (int) messageData.getSize()) == (int) messageData.getSize();
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}
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int InterprocessConnection::writeData (void* data, int dataSize)
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{
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const ScopedLock sl (pipeAndSocketLock);
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if (socket != nullptr)
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bytesWritten = socket->write (messageData.getData(), (int) messageData.getSize());
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else if (pipe != nullptr)
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bytesWritten = pipe->write (messageData.getData(), (int) messageData.getSize(), pipeReceiveMessageTimeout);
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return socket->write (data, dataSize);
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return bytesWritten == (int) messageData.getSize();
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if (pipe != nullptr)
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return pipe->write (data, dataSize, pipeReceiveMessageTimeout);
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return 0;
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}
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//==============================================================================
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@@ -201,6 +201,7 @@ private:
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friend struct ContainerDeletePolicy<ConnectionThread>;
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ScopedPointer<ConnectionThread> thread;
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void runThread();
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int writeData (void*, int);
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (InterprocessConnection)
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};
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