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o3de/Code/Framework/AzFramework/AzFramework/Process/ProcessWatcher.cpp

106 lines
4.0 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include <AzCore/std/smart_ptr/shared_ptr.h>
#include <AzCore/std/smart_ptr/scoped_ptr.h>
#include <AzCore/std/parallel/thread.h>
#include <AzFramework/StringFunc/StringFunc.h>
#include <AzFramework/Process/ProcessWatcher.h>
#include <AzFramework/Process/ProcessCommunicator.h>
namespace AzFramework
{
bool ProcessWatcher::LaunchProcessAndRetrieveOutput(const ProcessLauncher::ProcessLaunchInfo& processLaunchInfo, ProcessCommunicationType communicationType, AzFramework::ProcessOutput& outProcessOutput)
{
// launch the process
AZStd::scoped_ptr<ProcessWatcher> pWatcher(LaunchProcess(processLaunchInfo, communicationType));
if (!pWatcher)
{
AZ_TracePrintf("Process Watcher", "ProcessWatcher::LaunchProcessAndRetrieveOutput: Unable to launch process '%s %s'\n", processLaunchInfo.m_processExecutableString.c_str(), processLaunchInfo.m_commandlineParameters.c_str());
return false;
}
else
{
// get the communicator and ensure it is valid
ProcessCommunicator* pCommunicator = pWatcher->GetCommunicator();
if (!pCommunicator || !pCommunicator->IsValid())
{
AZ_TracePrintf("Process Watcher", "ProcessWatcher::LaunchProcessAndRetrieveOutput: No communicator for watcher's process (%s %s)!\n", processLaunchInfo.m_processExecutableString.c_str(), processLaunchInfo.m_commandlineParameters.c_str());
return false;
}
else
{
pCommunicator->ReadIntoProcessOutput(outProcessOutput);
}
}
return true;
}
bool ProcessWatcher::SpawnProcess(const ProcessLauncher::ProcessLaunchInfo& processLaunchInfo, ProcessCommunicationType communicationType)
{
InitProcessData(communicationType == COMMUNICATOR_TYPE_STDINOUT);
if (communicationType == COMMUNICATOR_TYPE_STDINOUT)
{
StdProcessCommunicator* pStdCommunicator = CreateStdCommunicator();
if (pStdCommunicator->CreatePipesForProcess(m_pWatcherData.get()))
{
m_pCommunicator = pStdCommunicator;
}
else
{
// Communicator failure, just clean it up
delete pStdCommunicator;
}
}
else if (communicationType == COMMUNICATOR_TYPE_NONE)
{
//Implemented, but don't do anything.
}
else
{
AZ_Assert(false, "communicationType %d not implemented", communicationType);
}
return ProcessLauncher::LaunchProcess(processLaunchInfo, *m_pWatcherData);
}
class ProcessCommunicator* ProcessWatcher::GetCommunicator()
{
return m_pCommunicator;
}
AZStd::shared_ptr<ProcessCommunicatorForChildProcess> ProcessWatcher::GetCommunicatorForChildProcess(ProcessCommunicationType communicationType)
{
if (communicationType == COMMUNICATOR_TYPE_STDINOUT)
{
StdProcessCommunicatorForChildProcess* communicator = CreateStdCommunicatorForChildProcess();
if (!communicator->AttachToExistingPipes())
{
// Delete the communicator if attaching fails, it is useless
delete communicator;
communicator = nullptr;
}
return AZStd::shared_ptr<ProcessCommunicatorForChildProcess>{
communicator
};
}
else if (communicationType == COMMUNICATOR_TYPE_NONE)
{
AZ_Assert(false, "No communicator for communicationType %d", communicationType);
}
else
{
AZ_Assert(false, "communicationType %d not implemented", communicationType);
}
return AZStd::shared_ptr<ProcessCommunicatorForChildProcess>{};
}
} // AzFramework