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/*
* Copyright (C) 2005-2013 Team XBMC
* http://xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "XHandle.h"
#include "utils/log.h"
#include "threads/SingleLock.h"
int CXHandle::m_objectTracker[10] = {0};
HANDLE WINAPI GetCurrentProcess(void) {
return (HANDLE)-1; // -1 a special value - pseudo handle
}
CXHandle::CXHandle()
{
Init();
m_objectTracker[m_type]++;
}
CXHandle::CXHandle(HandleType nType)
{
Init();
m_type=nType;
m_objectTracker[m_type]++;
}
CXHandle::CXHandle(const CXHandle &src)
{
// we shouldnt get here EVER. however, if we do - try to make the best. copy what we can
// and most importantly - not share any pointer.
CLog::Log(LOGWARNING,"%s, copy handle.", __FUNCTION__);
Init();
if (src.m_hMutex)
m_hMutex = new CCriticalSection();
fd = src.fd;
m_bManualEvent = src.m_bManualEvent;
m_tmCreation = time(NULL);
m_FindFileResults = src.m_FindFileResults;
m_nFindFileIterator = src.m_nFindFileIterator;
m_FindFileDir = src.m_FindFileDir;
m_iOffset = src.m_iOffset;
m_bCDROM = src.m_bCDROM;
m_objectTracker[m_type]++;
}
CXHandle::~CXHandle()
{
m_objectTracker[m_type]--;
if (RecursionCount > 0) {
CLog::Log(LOGERROR,"%s, destroying handle with recursion count %d", __FUNCTION__, RecursionCount);
assert(false);
}
if (m_nRefCount > 1) {
CLog::Log(LOGERROR,"%s, destroying handle with ref count %d", __FUNCTION__, m_nRefCount);
assert(false);
}
if (m_hMutex) {
delete m_hMutex;
}
if (m_internalLock) {
delete m_internalLock;
}
if (m_hCond) {
delete m_hCond;
}
if ( fd != 0 ) {
close(fd);
}
}
void CXHandle::Init()
{
fd=0;
m_hMutex=NULL;
m_hCond=NULL;
m_type = HND_NULL;
RecursionCount=0;
m_bManualEvent=FALSE;
m_bEventSet=FALSE;
m_nFindFileIterator=0 ;
m_nRefCount=1;
m_tmCreation = time(NULL);
m_internalLock = new CCriticalSection();
}
void CXHandle::ChangeType(HandleType newType) {
m_objectTracker[m_type]--;
m_type = newType;
m_objectTracker[m_type]++;
}
void CXHandle::DumpObjectTracker() {
for (int i=0; i< 10; i++) {
CLog::Log(LOGDEBUG,"object %d --> %d instances\n", i, m_objectTracker[i]);
}
}
bool CloseHandle(HANDLE hObject) {
if (!hObject)
return false;
if (hObject == INVALID_HANDLE_VALUE || hObject == (HANDLE)-1)
return true;
bool bDelete = false;
{
CSingleLock lock((*hObject->m_internalLock));
if (--hObject->m_nRefCount == 0)
bDelete = true;
}
if (bDelete)
delete hObject;
return true;
}
BOOL WINAPI DuplicateHandle(
HANDLE hSourceProcessHandle,
HANDLE hSourceHandle,
HANDLE hTargetProcessHandle,
LPHANDLE lpTargetHandle,
DWORD dwDesiredAccess,
BOOL bInheritHandle,
DWORD dwOptions
)
{
/* only a simple version of this is supported */
assert(hSourceProcessHandle == GetCurrentProcess()
&& hTargetProcessHandle == GetCurrentProcess()
&& dwOptions == DUPLICATE_SAME_ACCESS);
if (hSourceHandle == INVALID_HANDLE_VALUE)
return FALSE;
{
CSingleLock lock(*(hSourceHandle->m_internalLock));
hSourceHandle->m_nRefCount++;
}
if(lpTargetHandle)
*lpTargetHandle = hSourceHandle;
return TRUE;
}
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