/*++
Function:
_open_osfhandle
See MSDN doc.
--*/
int
__cdecl
_open_osfhandle( INT_PTR osfhandle, int flags )
{
PAL_ERROR palError = NO_ERROR;
CPalThread *pthrCurrent = NULL;
IPalObject *pobjFile = NULL;
CFileProcessLocalData *pLocalData = NULL;
IDataLock *pDataLock = NULL;
INT nRetVal = -1;
INT openFlags = 0;
PERF_ENTRY(_open_osfhandle);
ENTRY( "_open_osfhandle (osfhandle=%#x, flags=%#x)\n", osfhandle, flags );
pthrCurrent = InternalGetCurrentThread();
if (flags != _O_RDONLY)
{
ASSERT("flag(%#x) not supported\n", flags);
goto EXIT;
}
openFlags |= O_RDONLY;
palError = g_pObjectManager->ReferenceObjectByHandle(
pthrCurrent,
reinterpret_cast<HANDLE>(osfhandle),
&aotFile,
0,
&pobjFile
);
if (NO_ERROR != palError)
{
ERROR("Error dereferencing file handle\n");
goto EXIT;
}
palError = pobjFile->GetProcessLocalData(
pthrCurrent,
ReadLock,
&pDataLock,
reinterpret_cast<void **>(&pLocalData)
);
if (NO_ERROR == palError)
{
if ('\0' != pLocalData->unix_filename[0])
{
nRetVal = InternalOpen(pthrCurrent, pLocalData->unix_filename, openFlags);
}
else /* the only file object with no unix_filename is a pipe */
{
/* check if the file pipe descrptor is for read or write */
if (pLocalData->open_flags == O_WRONLY)
{
ERROR( "Couldn't open a write pipe on read mode\n");
goto EXIT;
}
nRetVal = pLocalData->unix_fd;
}
if ( nRetVal == -1 )
{
ERROR( "Error: %s.\n", strerror( errno ) );
}
}
else
{
ASSERT("Unable to access file data");
}
EXIT:
if (NULL != pDataLock)
{
pDataLock->ReleaseLock(pthrCurrent, FALSE);
}
if (NULL != pobjFile)
{
pobjFile->ReleaseReference(pthrCurrent);
}
LOGEXIT( "_open_osfhandle return nRetVal:%d\n", nRetVal);
PERF_EXIT(_open_osfhandle);
return nRetVal;
}
PAL_ERROR
CorUnix::InternalGetFileTime(
CPalThread *pThread,
IN HANDLE hFile,
OUT LPFILETIME lpCreationTime,
OUT LPFILETIME lpLastAccessTime,
OUT LPFILETIME lpLastWriteTime)
{
PAL_ERROR palError = NO_ERROR;
IPalObject *pFileObject = NULL;
CFileProcessLocalData *pLocalData = NULL;
IDataLock *pLocalDataLock = NULL;
int Fd = -1;
struct stat StatData;
if (INVALID_HANDLE_VALUE == hFile)
{
ERROR( "Invalid file handle\n" );
palError = ERROR_INVALID_HANDLE;
goto InternalGetFileTimeExit;
}
palError = g_pObjectManager->ReferenceObjectByHandle(
pThread,
hFile,
&aotFile,
GENERIC_READ,
&pFileObject
);
if (NO_ERROR != palError)
{
goto InternalGetFileTimeExit;
}
palError = pFileObject->GetProcessLocalData(
pThread,
ReadLock,
&pLocalDataLock,
reinterpret_cast<void**>(&pLocalData)
);
if (NO_ERROR != palError)
{
goto InternalGetFileTimeExit;
}
Fd = pLocalData->unix_fd;
if ( Fd == -1 )
{
TRACE("pLocalData = [%p], Fd = %d\n", pLocalData, Fd);
palError = ERROR_INVALID_HANDLE;
goto InternalGetFileTimeExit;
}
if ( fstat(Fd, &StatData) != 0 )
{
TRACE("fstat failed on file descriptor %d\n", Fd);
palError = FILEGetLastErrorFromErrno();
goto InternalGetFileTimeExit;
}
if ( lpCreationTime )
{
*lpCreationTime = FILEUnixTimeToFileTime(StatData.st_ctime,
ST_CTIME_NSEC(&StatData));
}
if ( lpLastWriteTime )
{
*lpLastWriteTime = FILEUnixTimeToFileTime(StatData.st_mtime,
ST_MTIME_NSEC(&StatData));
}
if ( lpLastAccessTime )
{
*lpLastAccessTime = FILEUnixTimeToFileTime(StatData.st_atime,
ST_ATIME_NSEC(&StatData));
/* if Unix mtime is greater than atime, return mtime as the last
access time */
if ( lpLastWriteTime &&
CompareFileTime(lpLastAccessTime, lpLastWriteTime) < 0 )
{
*lpLastAccessTime = *lpLastWriteTime;
}
}
InternalGetFileTimeExit:
if (NULL != pLocalDataLock)
{
pLocalDataLock->ReleaseLock(pThread, FALSE);
}
if (NULL != pFileObject)
{
pFileObject->ReleaseReference(pThread);
}
return palError;
}
/*++
Function:
DBGSetProcessAttached
Abstract
saves the current process Id in the attached process structure
Parameter
hProcess : process handle
bAttach : true (false) to set the process as attached (as detached)
Return
returns the number of attachment left on attachedProcId, or -1 if it fails
--*/
static int
DBGSetProcessAttached(
CPalThread *pThread,
HANDLE hProcess,
BOOL bAttach
)
{
PAL_ERROR palError = NO_ERROR;
IPalObject *pobjProcess = NULL;
IDataLock *pDataLock = NULL;
CProcProcessLocalData *pLocalData = NULL;
int ret = -1;
CAllowedObjectTypes aotProcess(otiProcess);
palError = g_pObjectManager->ReferenceObjectByHandle(
pThread,
hProcess,
&aotProcess,
0,
&pobjProcess
);
if (NO_ERROR != palError)
{
goto DBGSetProcessAttachedExit;
}
palError = pobjProcess->GetProcessLocalData(
pThread,
WriteLock,
&pDataLock,
reinterpret_cast<void **>(&pLocalData)
);
if (NO_ERROR != palError)
{
goto DBGSetProcessAttachedExit;
}
if (bAttach)
{
pLocalData->lAttachCount += 1;
}
else
{
pLocalData->lAttachCount -= 1;
if (pLocalData->lAttachCount < 0)
{
ASSERT("pLocalData->lAttachCount < 0 check for extra DBGDetachProcess calls\n");
palError = ERROR_INTERNAL_ERROR;
goto DBGSetProcessAttachedExit;
}
}
ret = pLocalData->lAttachCount;
DBGSetProcessAttachedExit:
if (NULL != pDataLock)
{
pDataLock->ReleaseLock(pThread, TRUE);
}
if (NULL != pobjProcess)
{
pobjProcess->ReleaseReference(pThread);
}
return ret;
}
PAL_ERROR
CorUnix::InternalSetFileTime(
CPalThread *pThread,
IN HANDLE hFile,
IN CONST FILETIME *lpCreationTime,
IN CONST FILETIME *lpLastAccessTime,
IN CONST FILETIME *lpLastWriteTime)
{
PAL_ERROR palError = NO_ERROR;
IPalObject *pFileObject = NULL;
CFileProcessLocalData *pLocalData = NULL;
IDataLock *pLocalDataLock = NULL;
struct timeval Times[2];
int fd;
long nsec;
struct stat stat_buf;
if (INVALID_HANDLE_VALUE == hFile)
{
ERROR( "Invalid file handle\n" );
palError = ERROR_INVALID_HANDLE;
goto InternalSetFileTimeExit;
}
palError = g_pObjectManager->ReferenceObjectByHandle(
pThread,
hFile,
&aotFile,
GENERIC_READ,
&pFileObject
);
if (NO_ERROR != palError)
{
goto InternalSetFileTimeExit;
}
palError = pFileObject->GetProcessLocalData(
pThread,
ReadLock,
&pLocalDataLock,
reinterpret_cast<void**>(&pLocalData)
);
if (NO_ERROR != palError)
{
goto InternalSetFileTimeExit;
}
if (lpCreationTime)
{
palError = ERROR_NOT_SUPPORTED;
goto InternalSetFileTimeExit;
}
if( !lpLastAccessTime && !lpLastWriteTime )
{
// if both pointers are NULL, the function simply returns.
goto InternalSetFileTimeExit;
}
else if( !lpLastAccessTime || !lpLastWriteTime )
{
// if either pointer is NULL, fstat will need to be called.
fd = pLocalData->unix_fd;
if ( fd == -1 )
{
TRACE("pLocalData = [%p], fd = %d\n", pLocalData, fd);
palError = ERROR_INVALID_HANDLE;
goto InternalSetFileTimeExit;
}
if ( fstat(fd, &stat_buf) != 0 )
{
TRACE("fstat failed on file descriptor %d\n", fd);
palError = FILEGetLastErrorFromErrno();
goto InternalSetFileTimeExit;
}
}
if (lpLastAccessTime)
{
Times[0].tv_sec = FILEFileTimeToUnixTime( *lpLastAccessTime, &nsec );
Times[0].tv_usec = nsec / 1000; /* convert to microseconds */
}
else
{
Times[0].tv_sec = stat_buf.st_atime;
Times[0].tv_usec = ST_ATIME_NSEC(&stat_buf) / 1000;
}
if (lpLastWriteTime)
{
Times[1].tv_sec = FILEFileTimeToUnixTime( *lpLastWriteTime, &nsec );
Times[1].tv_usec = nsec / 1000; /* convert to microseconds */
}
else
{
Times[1].tv_sec = stat_buf.st_mtime;
Times[1].tv_usec = ST_MTIME_NSEC(&stat_buf) / 1000;
}
TRACE("Setting atime = [%ld.%ld], mtime = [%ld.%ld]\n",
Times[0].tv_sec, Times[0].tv_usec,
Times[1].tv_sec, Times[1].tv_usec);
#if HAVE_FUTIMES
if ( futimes(pLocalData->unix_fd, Times) != 0 )
#elif HAVE_UTIMES
if ( utimes(pLocalData->unix_filename, Times) != 0 )
#else
#error Operating system not supported
#endif
{
palError = FILEGetLastErrorFromErrno();
}
InternalSetFileTimeExit:
if (NULL != pLocalDataLock)
{
pLocalDataLock->ReleaseLock(pThread, FALSE);
}
if (NULL != pFileObject)
{
pFileObject->ReleaseReference(pThread);
}
return palError;
}