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#include "OutputDebugStringThread.h"
#include "event_notifier.h"
#include "file_logger.h"
wxDEFINE_EVENT(wxEVT_OUTPUT_DEBUG_STRING, clCommandEvent);
OutputDebugStringThread::OutputDebugStringThread()
: wxThread(wxTHREAD_JOINABLE)
#ifdef __WXMSW__
, m_hDBWinMutex(INVALID_HANDLE_VALUE)
, m_hDBMonBuffer(INVALID_HANDLE_VALUE)
, m_hEventBufferReady(INVALID_HANDLE_VALUE)
, m_hEventDataReady(INVALID_HANDLE_VALUE)
, m_pDBBuffer(NULL)
#endif
, m_collecting(false)
{
#ifdef __WXMSW__
SetLastError(0);
// Mutex: DBWin
// ---------------------------------------------------------
m_hDBWinMutex = ::OpenMutex(MUTEX_ALL_ACCESS, FALSE, L"DBWinMutex");
if(m_hDBWinMutex == NULL) {
clWARNING() << "Failed to open mutex: 'DBWinMutex'." << GetLastError() << clEndl;
return;
}
m_hEventBufferReady = ::OpenEvent(EVENT_ALL_ACCESS, FALSE, L"DBWIN_BUFFER_READY");
if(m_hEventBufferReady == NULL) {
m_hEventBufferReady = ::CreateEvent(NULL,
FALSE, // auto-reset
TRUE, // initial state: signaled
L"DBWIN_BUFFER_READY");
if(m_hEventBufferReady == NULL) {
clWARNING() << "Failed to create event: 'DBWIN_BUFFER_READY'." << GetLastError() << clEndl;
return;
}
}
// Event: data ready
// ---------------------------------------------------------
m_hEventDataReady = ::OpenEvent(SYNCHRONIZE, FALSE, L"DBWIN_DATA_READY");
if(m_hEventDataReady == NULL) {
m_hEventDataReady = ::CreateEvent(NULL,
FALSE, // auto-reset
FALSE, // initial state: nonsignaled
L"DBWIN_DATA_READY");
if(m_hEventDataReady == NULL) {
clWARNING() << "Failed to create event: 'DBWIN_DATA_READY'." << GetLastError() << clEndl;
return;
}
}
// Shared memory
// ---------------------------------------------------------
wxString DBWIN_BUFFER = L"DBWIN_BUFFER";
m_hDBMonBuffer = ::OpenFileMapping(FILE_MAP_READ, FALSE, DBWIN_BUFFER.c_str());
if(m_hDBMonBuffer == NULL) {
m_hDBMonBuffer = ::CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, sizeof(struct dbwin_buffer),
DBWIN_BUFFER.c_str());
if(m_hDBMonBuffer == NULL) {
clWARNING() << "Failed to CreateFileMapping:" << DBWIN_BUFFER << "." << GetLastError() << clEndl;
return;
}
}
m_pDBBuffer = (struct dbwin_buffer*)::MapViewOfFile(m_hDBMonBuffer, SECTION_MAP_READ, 0, 0, 0);
if(m_pDBBuffer == NULL) {
clWARNING() << "Failed to MapViewOfFile:" << DBWIN_BUFFER << "." << GetLastError() << clEndl;
return;
}
#endif
}
OutputDebugStringThread::~OutputDebugStringThread()
{
#ifdef __WXMSW__
if(m_hDBWinMutex != NULL) {
CloseHandle(m_hDBWinMutex);
m_hDBWinMutex = NULL;
}
if(m_hDBMonBuffer != NULL) {
::UnmapViewOfFile(m_pDBBuffer);
CloseHandle(m_hDBMonBuffer);
m_hDBMonBuffer = NULL;
}
if(m_hEventBufferReady != NULL) {
CloseHandle(m_hEventBufferReady);
m_hEventBufferReady = NULL;
}
if(m_hEventDataReady != NULL) {
CloseHandle(m_hEventDataReady);
m_hEventDataReady = NULL;
}
m_pDBBuffer = NULL;
#endif
}
void* OutputDebugStringThread::Entry()
{
#ifdef __WXMSW__
while(!TestDestroy()) {
if(m_collecting) {
DWORD ret = 0;
// wait for data ready
ret = ::WaitForSingleObject(m_hEventDataReady, 100);
if(ret == WAIT_OBJECT_0) {
// Send the data
wxString data = m_pDBBuffer->data;
int processID = m_pDBBuffer->dwProcessId;
clCommandEvent event(wxEVT_OUTPUT_DEBUG_STRING);
event.SetInt(processID);
event.SetString(data);
EventNotifier::Get()->AddPendingEvent(event);
// signal buffer ready
SetEvent(m_hEventBufferReady);
}
} else {
wxMilliSleep(100);
}
}
#endif
return NULL;
}
void OutputDebugStringThread::Stop()
{
// Notify the thread to exit and
// wait for it
if(IsAlive()) {
Delete(NULL, wxTHREAD_WAIT_BLOCK);
} else {
Wait(wxTHREAD_WAIT_BLOCK);
}
}
void OutputDebugStringThread::Start(int priority)
{
Create();
SetPriority(priority);
Run();
}
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