diff options
| author | Jørgen P. Tjernø <[email protected]> | 2013-12-02 19:31:46 -0800 |
|---|---|---|
| committer | Jørgen P. Tjernø <[email protected]> | 2013-12-02 19:46:31 -0800 |
| commit | f56bb35301836e56582a575a75864392a0177875 (patch) | |
| tree | de61ddd39de3e7df52759711950b4c288592f0dc /mp/src/tier1/fileio.cpp | |
| parent | Mark some more files as text. (diff) | |
| download | source-sdk-2013-f56bb35301836e56582a575a75864392a0177875.tar.xz source-sdk-2013-f56bb35301836e56582a575a75864392a0177875.zip | |
Fix line endings. WHAMMY.
Diffstat (limited to 'mp/src/tier1/fileio.cpp')
| -rw-r--r-- | mp/src/tier1/fileio.cpp | 992 |
1 files changed, 496 insertions, 496 deletions
diff --git a/mp/src/tier1/fileio.cpp b/mp/src/tier1/fileio.cpp index 0b00fb43..3a909983 100644 --- a/mp/src/tier1/fileio.cpp +++ b/mp/src/tier1/fileio.cpp @@ -1,497 +1,497 @@ -//========= Copyright Valve Corporation, All rights reserved. ============//
-//
-// Purpose: A collection of utility classes to simplify file I/O, and
-// as much as possible contain portability problems. Here avoiding
-// including windows.h.
-//
-//=============================================================================
-
-#if defined(_WIN32)
-#undef _WIN32_WINNT
-#define _WIN32_WINNT 0x0502 // ReadDirectoryChangesW
-#endif
-
-#if defined(OSX)
-#include <CoreServices/CoreServices.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <sys/time.h>
-#endif
-
-#define ASYNC_FILEIO
-#if defined( LINUX )
-// Linux hasn't got a good AIO library that we have found yet, so lets punt for now
-#undef ASYNC_FILEIO
-#endif
-
-#if defined(_WIN32)
-//#include <direct.h>
-#include <io.h>
-// unset to force to use stdio implementation
-#define WIN32_FILEIO
-
-#if defined(ASYNC_FILEIO)
-#if defined(_WIN32) && !defined(WIN32_FILEIO)
-#error "trying to use async io without win32 filesystem API usage, that isn't doable"
-#endif
-#endif
-
-#else /* not defined (_WIN32) */
-#include <utime.h>
-#include <dirent.h>
-#include <unistd.h> // for unlink
-#include <limits.h> // defines PATH_MAX
-#include <alloca.h> // 'cause we like smashing the stack
-#if defined( _PS3 )
-#include <fcntl.h>
-#else
-#include <sys/fcntl.h>
-#include <sys/statvfs.h>
-#endif
-#include <sched.h>
-#define int64 int64_t
-
-#define _A_SUBDIR S_IFDIR
-
-// FUTURE map _A_HIDDEN via checking filename against .*
-#define _A_HIDDEN 0
-
-// FUTURE check 'read only' by checking mode against S_IRUSR
-#define _A_RDONLY 0
-
-// no files under posix are 'system' or 'archive'
-#define _A_SYSTEM 0
-#define _A_ARCH 0
-
-#endif
-
-#include "tier1/fileio.h"
-#include "tier1/utlbuffer.h"
-#include "tier1/strtools.h"
-#include <errno.h>
-
-#if defined( WIN32_FILEIO )
-#include "winlite.h"
-#endif
-
-#if defined( ASYNC_FILEIO )
-#ifdef _WIN32
-#include "winlite.h"
-#elif defined(_PS3)
-// bugbug ps3 - see some aio files under libfs.. skipping for the moment
-#elif defined(POSIX)
-#include <aio.h>
-#else
-#error "aio please"
-#endif
-#endif
-
-//-----------------------------------------------------------------------------
-// Purpose: Constructor from UTF8
-//-----------------------------------------------------------------------------
-CPathString::CPathString( const char *pchUTF8Path )
-{
- // Need to first turn into an absolute path, so \\?\ pre-pended paths will be ok
- m_pchUTF8Path = new char[ MAX_UNICODE_PATH_IN_UTF8 ];
- m_pwchWideCharPathPrepended = NULL;
-
- // First, convert to absolute path, which also does Q_FixSlashes for us.
- Q_MakeAbsolutePath( m_pchUTF8Path, MAX_UNICODE_PATH * 4, pchUTF8Path );
-
- // Second, fix any double slashes
- V_FixDoubleSlashes( m_pchUTF8Path );
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: Destructor
-//-----------------------------------------------------------------------------
-CPathString::~CPathString()
-{
- if ( m_pwchWideCharPathPrepended )
- {
- delete[] m_pwchWideCharPathPrepended;
- m_pwchWideCharPathPrepended = NULL;
- }
-
- if ( m_pchUTF8Path )
- {
- delete[] m_pchUTF8Path;
- m_pchUTF8Path = NULL;
- }
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: Access UTF8 path
-//-----------------------------------------------------------------------------
-const char * CPathString::GetUTF8Path()
-{
- return m_pchUTF8Path;
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: Gets wchar_t based path, with \\?\ pre-pended (allowing long paths
-// on Win32, should only be used with unicode extended path aware filesystem calls)
-//-----------------------------------------------------------------------------
-const wchar_t *CPathString::GetWCharPathPrePended()
-{
- PopulateWCharPath();
- return m_pwchWideCharPathPrepended;
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: Builds wchar path string
-//-----------------------------------------------------------------------------
-void CPathString::PopulateWCharPath()
-{
- if ( m_pwchWideCharPathPrepended )
- return;
-
- // Check if the UTF8 path starts with \\, which on Win32 means it's a UNC path, and then needs a different prefix
- if ( m_pchUTF8Path[0] == '\\' && m_pchUTF8Path[1] == '\\' )
- {
- m_pwchWideCharPathPrepended = new wchar_t[MAX_UNICODE_PATH+8];
- Q_memcpy( m_pwchWideCharPathPrepended, L"\\\\?\\UNC\\", 8*sizeof(wchar_t) );
-#ifdef DBGFLAG_ASSERT
- int cchResult =
-#endif
- Q_UTF8ToUnicode( m_pchUTF8Path+2, m_pwchWideCharPathPrepended+8, MAX_UNICODE_PATH*sizeof(wchar_t) );
- Assert( cchResult );
-
- // Be sure we NULL terminate within our allocated region incase Q_UTF8ToUnicode failed, though we're already in bad shape then.
- m_pwchWideCharPathPrepended[MAX_UNICODE_PATH+7] = 0;
- }
- else
- {
- m_pwchWideCharPathPrepended = new wchar_t[MAX_UNICODE_PATH+4];
- Q_memcpy( m_pwchWideCharPathPrepended, L"\\\\?\\", 4*sizeof(wchar_t) );
-#ifdef DBGFLAG_ASSERT
- int cchResult =
-#endif
- Q_UTF8ToUnicode( m_pchUTF8Path, m_pwchWideCharPathPrepended+4, MAX_UNICODE_PATH*sizeof(wchar_t) );
- Assert( cchResult );
-
- // Be sure we NULL terminate within our allocated region incase Q_UTF8ToUnicode failed, though we're already in bad shape then.
- m_pwchWideCharPathPrepended[MAX_UNICODE_PATH+3] = 0;
- }
-}
-
-#ifdef WIN32
-struct DirWatcherOverlapped : public OVERLAPPED
-{
- CDirWatcher *m_pDirWatcher;
-};
-#endif
-
-#if !defined(_PS3) && !defined(_X360)
-// a buffer full of file names
-static const int k_cubDirWatchBufferSize = 8 * 1024;
-
-//-----------------------------------------------------------------------------
-// Purpose: directory watching
-//-----------------------------------------------------------------------------
-CDirWatcher::CDirWatcher()
-{
- m_hFile = NULL;
- m_pOverlapped = NULL;
- m_pFileInfo = NULL;
-#ifdef OSX
- m_WatcherStream = 0;
-#endif
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: directory watching
-//-----------------------------------------------------------------------------
-CDirWatcher::~CDirWatcher()
-{
-#ifdef WIN32
- if ( m_pOverlapped )
- {
- // mark the overlapped structure as gone
- DirWatcherOverlapped *pDirWatcherOverlapped = (DirWatcherOverlapped *)m_pOverlapped;
- pDirWatcherOverlapped->m_pDirWatcher = NULL;
- }
-
- if ( m_hFile )
- {
- // make sure we flush any pending I/O's on the handle
- ::CancelIo( m_hFile );
- ::SleepEx( 0, TRUE );
- // close the handle
- ::CloseHandle( m_hFile );
- }
-#elif defined(OSX)
- if ( m_WatcherStream )
- {
- FSEventStreamStop( (FSEventStreamRef)m_WatcherStream );
- FSEventStreamInvalidate( (FSEventStreamRef)m_WatcherStream );
- FSEventStreamRelease( (FSEventStreamRef)m_WatcherStream );
- m_WatcherStream = 0;
- }
-#endif
- if ( m_pFileInfo )
- {
- free( m_pFileInfo );
- }
- if ( m_pOverlapped )
- {
- free( m_pOverlapped );
- }
-}
-
-
-#ifdef WIN32
-//-----------------------------------------------------------------------------
-// Purpose: callback watch
-// gets called on the same thread whenever a SleepEx() occurs
-//-----------------------------------------------------------------------------
-class CDirWatcherFriend
-{
-public:
- static void WINAPI DirWatchCallback( DWORD dwErrorCode, DWORD dwNumberOfBytesTransfered, OVERLAPPED *pOverlapped )
- {
- DirWatcherOverlapped *pDirWatcherOverlapped = (DirWatcherOverlapped *)pOverlapped;
-
- // see if we've been cancelled
- if ( !pDirWatcherOverlapped->m_pDirWatcher )
- return;
-
- // parse and pass back
- if ( dwNumberOfBytesTransfered > sizeof(FILE_NOTIFY_INFORMATION) )
- {
- FILE_NOTIFY_INFORMATION *pFileNotifyInformation = (FILE_NOTIFY_INFORMATION *)pDirWatcherOverlapped->m_pDirWatcher->m_pFileInfo;
- do
- {
- // null terminate the string and turn it to UTF-8
- int cNumWChars = pFileNotifyInformation->FileNameLength / sizeof(wchar_t);
- wchar_t *pwchT = new wchar_t[cNumWChars + 1];
- memcpy( pwchT, pFileNotifyInformation->FileName, pFileNotifyInformation->FileNameLength );
- pwchT[cNumWChars] = 0;
- CStrAutoEncode strAutoEncode( pwchT );
-
- // add it to our list
- pDirWatcherOverlapped->m_pDirWatcher->AddFileToChangeList( strAutoEncode.ToString() );
- delete[] pwchT;
- if ( pFileNotifyInformation->NextEntryOffset == 0 )
- break;
-
- // move to the next file
- pFileNotifyInformation = (FILE_NOTIFY_INFORMATION *)(((byte*)pFileNotifyInformation) + pFileNotifyInformation->NextEntryOffset);
- } while ( 1 );
- }
-
-
- // watch again
- pDirWatcherOverlapped->m_pDirWatcher->PostDirWatch();
- }
-};
-#elif defined(OSX)
-void CheckDirectoryForChanges( const char *path_buff, CDirWatcher *pDirWatch, bool bRecurse )
-{
- DIR *dir = opendir(path_buff);
- char fullpath[MAX_PATH];
- struct dirent *dirent;
- struct timespec ts = { 0, 0 };
- bool bTimeSet = false;
-
- while ( (dirent = readdir(dir)) != NULL )
- {
- if (strcmp(dirent->d_name, ".") == 0 || strcmp(dirent->d_name, "..") == 0)
- continue;
-
- snprintf( fullpath, PATH_MAX, "%s/%s", path_buff, dirent->d_name );
-
- struct stat st;
- if (lstat(fullpath, &st) != 0)
- continue;
-
- if ( S_ISDIR(st.st_mode) && bRecurse )
- {
- CheckDirectoryForChanges( fullpath, pDirWatch, bRecurse );
- }
- else if ( st.st_mtimespec.tv_sec > pDirWatch->m_modTime.tv_sec ||
- ( st.st_mtimespec.tv_sec == pDirWatch->m_modTime.tv_sec && st.st_mtimespec.tv_nsec > pDirWatch->m_modTime.tv_nsec ) )
- {
- ts = st.st_mtimespec;
- bTimeSet = true;
- // the win32 size only sends up the dir relative to the watching dir, so replicate that here
- pDirWatch->AddFileToChangeList( fullpath + pDirWatch->m_BaseDir.Length() + 1 );
- }
- }
-
- if ( bTimeSet )
- pDirWatch->m_modTime = ts;
- closedir(dir);
-}
-
-static void fsevents_callback( ConstFSEventStreamRef streamRef, void *clientCallBackInfo, size_t numEvents,void *eventPaths,
- const FSEventStreamEventFlags eventMasks[], const FSEventStreamEventId eventIDs[] )
-{
- char path_buff[PATH_MAX];
- for (int i=0; i < numEvents; i++)
- {
- char **paths = (char **)eventPaths;
-
- strcpy(path_buff, paths[i]);
- int len = strlen(path_buff);
- if (path_buff[len-1] == '/')
- {
- // chop off a trailing slash
- path_buff[--len] = '\0';
- }
-
- bool bRecurse = false;
-
- if (eventMasks[i] & kFSEventStreamEventFlagMustScanSubDirs
- || eventMasks[i] & kFSEventStreamEventFlagUserDropped
- || eventMasks[i] & kFSEventStreamEventFlagKernelDropped)
- {
- bRecurse = true;
- }
-
- CDirWatcher *pDirWatch = (CDirWatcher *)clientCallBackInfo;
- // make sure its in our subdir
- if ( !V_strnicmp( path_buff, pDirWatch->m_BaseDir.String(), pDirWatch->m_BaseDir.Length() ) )
- CheckDirectoryForChanges( path_buff, pDirWatch, bRecurse );
- }
-}
-
-
-
-
-#endif
-
-//-----------------------------------------------------------------------------
-// Purpose: only one directory can be watched at a time
-//-----------------------------------------------------------------------------
-void CDirWatcher::SetDirToWatch( const char *pchDir )
-{
- if ( !pchDir || !*pchDir )
- return;
-
- CPathString strPath( pchDir );
-#ifdef WIN32
- // open the directory
- m_hFile = ::CreateFileW( strPath.GetWCharPathPrePended(), FILE_LIST_DIRECTORY, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED | FILE_FLAG_BACKUP_SEMANTICS, NULL );
-
- // create our buffers
- m_pFileInfo = malloc( k_cubDirWatchBufferSize );
- m_pOverlapped = malloc( sizeof( DirWatcherOverlapped ) );
-
- // post a watch
- PostDirWatch();
-#elif defined(OSX)
- CFStringRef mypath = CFStringCreateWithCString( NULL, strPath.GetUTF8Path(), kCFStringEncodingMacRoman );
- if ( !mypath )
- {
- Assert( !"Failed to CFStringCreateWithCString watcher path" );
- return;
- }
-
- CFArrayRef pathsToWatch = CFArrayCreate(NULL, (const void **)&mypath, 1, NULL);
- FSEventStreamContext callbackInfo = {0, this, NULL, NULL, NULL};
- CFAbsoluteTime latency = 1.0; // Latency in seconds
-
- m_WatcherStream = (void *)FSEventStreamCreate(NULL,
- &fsevents_callback,
- &callbackInfo,
- pathsToWatch,
- kFSEventStreamEventIdSinceNow,
- latency,
- kFSEventStreamCreateFlagNoDefer
- );
-
- FSEventStreamScheduleWithRunLoop( (FSEventStreamRef)m_WatcherStream, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
- CFRelease(pathsToWatch );
- CFRelease( mypath );
-
- FSEventStreamStart( (FSEventStreamRef)m_WatcherStream );
-
- char szFullPath[MAX_PATH];
- Q_MakeAbsolutePath( szFullPath, sizeof(szFullPath), pchDir );
- m_BaseDir = szFullPath;
-
- struct timeval tv;
- gettimeofday( &tv, NULL );
- TIMEVAL_TO_TIMESPEC( &tv, &m_modTime );
-
-#else
- Assert( !"Impl me" );
-#endif
-}
-
-
-#ifdef WIN32
-//-----------------------------------------------------------------------------
-// Purpose: used by callback functions to push a file onto the list
-//-----------------------------------------------------------------------------
-void CDirWatcher::PostDirWatch()
-{
- memset( m_pOverlapped, 0, sizeof(DirWatcherOverlapped) );
- DirWatcherOverlapped *pDirWatcherOverlapped = (DirWatcherOverlapped *)m_pOverlapped;
- pDirWatcherOverlapped->m_pDirWatcher = this;
-
- DWORD dwBytes;
- ::ReadDirectoryChangesW( m_hFile, m_pFileInfo, k_cubDirWatchBufferSize, TRUE, FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_FILE_NAME, &dwBytes, (OVERLAPPED *)m_pOverlapped, &CDirWatcherFriend::DirWatchCallback );
-}
-#endif
-
-
-//-----------------------------------------------------------------------------
-// Purpose: used by callback functions to push a file onto the list
-//-----------------------------------------------------------------------------
-void CDirWatcher::AddFileToChangeList( const char *pchFile )
-{
- // make sure it isn't already in the list
- FOR_EACH_LL( m_listChangedFiles, i )
- {
- if ( !Q_stricmp( m_listChangedFiles[i], pchFile ) )
- return;
- }
-
- m_listChangedFiles.AddToTail( pchFile );
-}
-
-
-//-----------------------------------------------------------------------------
-// Purpose: retrieve any changes
-//-----------------------------------------------------------------------------
-bool CDirWatcher::GetChangedFile( CUtlString *psFile )
-{
-#ifdef WIN32
- // this will trigger any pending directory reads
- // this does get hit other places in the code; so the callback can happen at any time
- ::SleepEx( 0, TRUE );
-#endif
-
- if ( !m_listChangedFiles.Count() )
- return false;
-
- *psFile = m_listChangedFiles[m_listChangedFiles.Head()];
- m_listChangedFiles.Remove( m_listChangedFiles.Head() );
- return true;
-}
-
-
-
-#ifdef DBGFLAG_VALIDATE
-void CDirWatcher::Validate( CValidator &validator, const char *pchName )
-{
- VALIDATE_SCOPE();
-
- validator.ClaimMemory( m_pOverlapped );
- validator.ClaimMemory( m_pFileInfo );
- ValidateObj( m_listChangedFiles );
- FOR_EACH_LL( m_listChangedFiles, i )
- {
- ValidateObj( m_listChangedFiles[i] );
- }
-}
-#endif
-
+//========= Copyright Valve Corporation, All rights reserved. ============// +// +// Purpose: A collection of utility classes to simplify file I/O, and +// as much as possible contain portability problems. Here avoiding +// including windows.h. +// +//============================================================================= + +#if defined(_WIN32) +#undef _WIN32_WINNT +#define _WIN32_WINNT 0x0502 // ReadDirectoryChangesW +#endif + +#if defined(OSX) +#include <CoreServices/CoreServices.h> +#include <sys/types.h> +#include <dirent.h> +#include <sys/time.h> +#endif + +#define ASYNC_FILEIO +#if defined( LINUX ) +// Linux hasn't got a good AIO library that we have found yet, so lets punt for now +#undef ASYNC_FILEIO +#endif + +#if defined(_WIN32) +//#include <direct.h> +#include <io.h> +// unset to force to use stdio implementation +#define WIN32_FILEIO + +#if defined(ASYNC_FILEIO) +#if defined(_WIN32) && !defined(WIN32_FILEIO) +#error "trying to use async io without win32 filesystem API usage, that isn't doable" +#endif +#endif + +#else /* not defined (_WIN32) */ +#include <utime.h> +#include <dirent.h> +#include <unistd.h> // for unlink +#include <limits.h> // defines PATH_MAX +#include <alloca.h> // 'cause we like smashing the stack +#if defined( _PS3 ) +#include <fcntl.h> +#else +#include <sys/fcntl.h> +#include <sys/statvfs.h> +#endif +#include <sched.h> +#define int64 int64_t + +#define _A_SUBDIR S_IFDIR + +// FUTURE map _A_HIDDEN via checking filename against .* +#define _A_HIDDEN 0 + +// FUTURE check 'read only' by checking mode against S_IRUSR +#define _A_RDONLY 0 + +// no files under posix are 'system' or 'archive' +#define _A_SYSTEM 0 +#define _A_ARCH 0 + +#endif + +#include "tier1/fileio.h" +#include "tier1/utlbuffer.h" +#include "tier1/strtools.h" +#include <errno.h> + +#if defined( WIN32_FILEIO ) +#include "winlite.h" +#endif + +#if defined( ASYNC_FILEIO ) +#ifdef _WIN32 +#include "winlite.h" +#elif defined(_PS3) +// bugbug ps3 - see some aio files under libfs.. skipping for the moment +#elif defined(POSIX) +#include <aio.h> +#else +#error "aio please" +#endif +#endif + +//----------------------------------------------------------------------------- +// Purpose: Constructor from UTF8 +//----------------------------------------------------------------------------- +CPathString::CPathString( const char *pchUTF8Path ) +{ + // Need to first turn into an absolute path, so \\?\ pre-pended paths will be ok + m_pchUTF8Path = new char[ MAX_UNICODE_PATH_IN_UTF8 ]; + m_pwchWideCharPathPrepended = NULL; + + // First, convert to absolute path, which also does Q_FixSlashes for us. + Q_MakeAbsolutePath( m_pchUTF8Path, MAX_UNICODE_PATH * 4, pchUTF8Path ); + + // Second, fix any double slashes + V_FixDoubleSlashes( m_pchUTF8Path ); +} + + +//----------------------------------------------------------------------------- +// Purpose: Destructor +//----------------------------------------------------------------------------- +CPathString::~CPathString() +{ + if ( m_pwchWideCharPathPrepended ) + { + delete[] m_pwchWideCharPathPrepended; + m_pwchWideCharPathPrepended = NULL; + } + + if ( m_pchUTF8Path ) + { + delete[] m_pchUTF8Path; + m_pchUTF8Path = NULL; + } +} + + +//----------------------------------------------------------------------------- +// Purpose: Access UTF8 path +//----------------------------------------------------------------------------- +const char * CPathString::GetUTF8Path() +{ + return m_pchUTF8Path; +} + + +//----------------------------------------------------------------------------- +// Purpose: Gets wchar_t based path, with \\?\ pre-pended (allowing long paths +// on Win32, should only be used with unicode extended path aware filesystem calls) +//----------------------------------------------------------------------------- +const wchar_t *CPathString::GetWCharPathPrePended() +{ + PopulateWCharPath(); + return m_pwchWideCharPathPrepended; +} + + +//----------------------------------------------------------------------------- +// Purpose: Builds wchar path string +//----------------------------------------------------------------------------- +void CPathString::PopulateWCharPath() +{ + if ( m_pwchWideCharPathPrepended ) + return; + + // Check if the UTF8 path starts with \\, which on Win32 means it's a UNC path, and then needs a different prefix + if ( m_pchUTF8Path[0] == '\\' && m_pchUTF8Path[1] == '\\' ) + { + m_pwchWideCharPathPrepended = new wchar_t[MAX_UNICODE_PATH+8]; + Q_memcpy( m_pwchWideCharPathPrepended, L"\\\\?\\UNC\\", 8*sizeof(wchar_t) ); +#ifdef DBGFLAG_ASSERT + int cchResult = +#endif + Q_UTF8ToUnicode( m_pchUTF8Path+2, m_pwchWideCharPathPrepended+8, MAX_UNICODE_PATH*sizeof(wchar_t) ); + Assert( cchResult ); + + // Be sure we NULL terminate within our allocated region incase Q_UTF8ToUnicode failed, though we're already in bad shape then. + m_pwchWideCharPathPrepended[MAX_UNICODE_PATH+7] = 0; + } + else + { + m_pwchWideCharPathPrepended = new wchar_t[MAX_UNICODE_PATH+4]; + Q_memcpy( m_pwchWideCharPathPrepended, L"\\\\?\\", 4*sizeof(wchar_t) ); +#ifdef DBGFLAG_ASSERT + int cchResult = +#endif + Q_UTF8ToUnicode( m_pchUTF8Path, m_pwchWideCharPathPrepended+4, MAX_UNICODE_PATH*sizeof(wchar_t) ); + Assert( cchResult ); + + // Be sure we NULL terminate within our allocated region incase Q_UTF8ToUnicode failed, though we're already in bad shape then. + m_pwchWideCharPathPrepended[MAX_UNICODE_PATH+3] = 0; + } +} + +#ifdef WIN32 +struct DirWatcherOverlapped : public OVERLAPPED +{ + CDirWatcher *m_pDirWatcher; +}; +#endif + +#if !defined(_PS3) && !defined(_X360) +// a buffer full of file names +static const int k_cubDirWatchBufferSize = 8 * 1024; + +//----------------------------------------------------------------------------- +// Purpose: directory watching +//----------------------------------------------------------------------------- +CDirWatcher::CDirWatcher() +{ + m_hFile = NULL; + m_pOverlapped = NULL; + m_pFileInfo = NULL; +#ifdef OSX + m_WatcherStream = 0; +#endif +} + + +//----------------------------------------------------------------------------- +// Purpose: directory watching +//----------------------------------------------------------------------------- +CDirWatcher::~CDirWatcher() +{ +#ifdef WIN32 + if ( m_pOverlapped ) + { + // mark the overlapped structure as gone + DirWatcherOverlapped *pDirWatcherOverlapped = (DirWatcherOverlapped *)m_pOverlapped; + pDirWatcherOverlapped->m_pDirWatcher = NULL; + } + + if ( m_hFile ) + { + // make sure we flush any pending I/O's on the handle + ::CancelIo( m_hFile ); + ::SleepEx( 0, TRUE ); + // close the handle + ::CloseHandle( m_hFile ); + } +#elif defined(OSX) + if ( m_WatcherStream ) + { + FSEventStreamStop( (FSEventStreamRef)m_WatcherStream ); + FSEventStreamInvalidate( (FSEventStreamRef)m_WatcherStream ); + FSEventStreamRelease( (FSEventStreamRef)m_WatcherStream ); + m_WatcherStream = 0; + } +#endif + if ( m_pFileInfo ) + { + free( m_pFileInfo ); + } + if ( m_pOverlapped ) + { + free( m_pOverlapped ); + } +} + + +#ifdef WIN32 +//----------------------------------------------------------------------------- +// Purpose: callback watch +// gets called on the same thread whenever a SleepEx() occurs +//----------------------------------------------------------------------------- +class CDirWatcherFriend +{ +public: + static void WINAPI DirWatchCallback( DWORD dwErrorCode, DWORD dwNumberOfBytesTransfered, OVERLAPPED *pOverlapped ) + { + DirWatcherOverlapped *pDirWatcherOverlapped = (DirWatcherOverlapped *)pOverlapped; + + // see if we've been cancelled + if ( !pDirWatcherOverlapped->m_pDirWatcher ) + return; + + // parse and pass back + if ( dwNumberOfBytesTransfered > sizeof(FILE_NOTIFY_INFORMATION) ) + { + FILE_NOTIFY_INFORMATION *pFileNotifyInformation = (FILE_NOTIFY_INFORMATION *)pDirWatcherOverlapped->m_pDirWatcher->m_pFileInfo; + do + { + // null terminate the string and turn it to UTF-8 + int cNumWChars = pFileNotifyInformation->FileNameLength / sizeof(wchar_t); + wchar_t *pwchT = new wchar_t[cNumWChars + 1]; + memcpy( pwchT, pFileNotifyInformation->FileName, pFileNotifyInformation->FileNameLength ); + pwchT[cNumWChars] = 0; + CStrAutoEncode strAutoEncode( pwchT ); + + // add it to our list + pDirWatcherOverlapped->m_pDirWatcher->AddFileToChangeList( strAutoEncode.ToString() ); + delete[] pwchT; + if ( pFileNotifyInformation->NextEntryOffset == 0 ) + break; + + // move to the next file + pFileNotifyInformation = (FILE_NOTIFY_INFORMATION *)(((byte*)pFileNotifyInformation) + pFileNotifyInformation->NextEntryOffset); + } while ( 1 ); + } + + + // watch again + pDirWatcherOverlapped->m_pDirWatcher->PostDirWatch(); + } +}; +#elif defined(OSX) +void CheckDirectoryForChanges( const char *path_buff, CDirWatcher *pDirWatch, bool bRecurse ) +{ + DIR *dir = opendir(path_buff); + char fullpath[MAX_PATH]; + struct dirent *dirent; + struct timespec ts = { 0, 0 }; + bool bTimeSet = false; + + while ( (dirent = readdir(dir)) != NULL ) + { + if (strcmp(dirent->d_name, ".") == 0 || strcmp(dirent->d_name, "..") == 0) + continue; + + snprintf( fullpath, PATH_MAX, "%s/%s", path_buff, dirent->d_name ); + + struct stat st; + if (lstat(fullpath, &st) != 0) + continue; + + if ( S_ISDIR(st.st_mode) && bRecurse ) + { + CheckDirectoryForChanges( fullpath, pDirWatch, bRecurse ); + } + else if ( st.st_mtimespec.tv_sec > pDirWatch->m_modTime.tv_sec || + ( st.st_mtimespec.tv_sec == pDirWatch->m_modTime.tv_sec && st.st_mtimespec.tv_nsec > pDirWatch->m_modTime.tv_nsec ) ) + { + ts = st.st_mtimespec; + bTimeSet = true; + // the win32 size only sends up the dir relative to the watching dir, so replicate that here + pDirWatch->AddFileToChangeList( fullpath + pDirWatch->m_BaseDir.Length() + 1 ); + } + } + + if ( bTimeSet ) + pDirWatch->m_modTime = ts; + closedir(dir); +} + +static void fsevents_callback( ConstFSEventStreamRef streamRef, void *clientCallBackInfo, size_t numEvents,void *eventPaths, + const FSEventStreamEventFlags eventMasks[], const FSEventStreamEventId eventIDs[] ) +{ + char path_buff[PATH_MAX]; + for (int i=0; i < numEvents; i++) + { + char **paths = (char **)eventPaths; + + strcpy(path_buff, paths[i]); + int len = strlen(path_buff); + if (path_buff[len-1] == '/') + { + // chop off a trailing slash + path_buff[--len] = '\0'; + } + + bool bRecurse = false; + + if (eventMasks[i] & kFSEventStreamEventFlagMustScanSubDirs + || eventMasks[i] & kFSEventStreamEventFlagUserDropped + || eventMasks[i] & kFSEventStreamEventFlagKernelDropped) + { + bRecurse = true; + } + + CDirWatcher *pDirWatch = (CDirWatcher *)clientCallBackInfo; + // make sure its in our subdir + if ( !V_strnicmp( path_buff, pDirWatch->m_BaseDir.String(), pDirWatch->m_BaseDir.Length() ) ) + CheckDirectoryForChanges( path_buff, pDirWatch, bRecurse ); + } +} + + + + +#endif + +//----------------------------------------------------------------------------- +// Purpose: only one directory can be watched at a time +//----------------------------------------------------------------------------- +void CDirWatcher::SetDirToWatch( const char *pchDir ) +{ + if ( !pchDir || !*pchDir ) + return; + + CPathString strPath( pchDir ); +#ifdef WIN32 + // open the directory + m_hFile = ::CreateFileW( strPath.GetWCharPathPrePended(), FILE_LIST_DIRECTORY, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED | FILE_FLAG_BACKUP_SEMANTICS, NULL ); + + // create our buffers + m_pFileInfo = malloc( k_cubDirWatchBufferSize ); + m_pOverlapped = malloc( sizeof( DirWatcherOverlapped ) ); + + // post a watch + PostDirWatch(); +#elif defined(OSX) + CFStringRef mypath = CFStringCreateWithCString( NULL, strPath.GetUTF8Path(), kCFStringEncodingMacRoman ); + if ( !mypath ) + { + Assert( !"Failed to CFStringCreateWithCString watcher path" ); + return; + } + + CFArrayRef pathsToWatch = CFArrayCreate(NULL, (const void **)&mypath, 1, NULL); + FSEventStreamContext callbackInfo = {0, this, NULL, NULL, NULL}; + CFAbsoluteTime latency = 1.0; // Latency in seconds + + m_WatcherStream = (void *)FSEventStreamCreate(NULL, + &fsevents_callback, + &callbackInfo, + pathsToWatch, + kFSEventStreamEventIdSinceNow, + latency, + kFSEventStreamCreateFlagNoDefer + ); + + FSEventStreamScheduleWithRunLoop( (FSEventStreamRef)m_WatcherStream, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode); + CFRelease(pathsToWatch ); + CFRelease( mypath ); + + FSEventStreamStart( (FSEventStreamRef)m_WatcherStream ); + + char szFullPath[MAX_PATH]; + Q_MakeAbsolutePath( szFullPath, sizeof(szFullPath), pchDir ); + m_BaseDir = szFullPath; + + struct timeval tv; + gettimeofday( &tv, NULL ); + TIMEVAL_TO_TIMESPEC( &tv, &m_modTime ); + +#else + Assert( !"Impl me" ); +#endif +} + + +#ifdef WIN32 +//----------------------------------------------------------------------------- +// Purpose: used by callback functions to push a file onto the list +//----------------------------------------------------------------------------- +void CDirWatcher::PostDirWatch() +{ + memset( m_pOverlapped, 0, sizeof(DirWatcherOverlapped) ); + DirWatcherOverlapped *pDirWatcherOverlapped = (DirWatcherOverlapped *)m_pOverlapped; + pDirWatcherOverlapped->m_pDirWatcher = this; + + DWORD dwBytes; + ::ReadDirectoryChangesW( m_hFile, m_pFileInfo, k_cubDirWatchBufferSize, TRUE, FILE_NOTIFY_CHANGE_LAST_WRITE | FILE_NOTIFY_CHANGE_FILE_NAME, &dwBytes, (OVERLAPPED *)m_pOverlapped, &CDirWatcherFriend::DirWatchCallback ); +} +#endif + + +//----------------------------------------------------------------------------- +// Purpose: used by callback functions to push a file onto the list +//----------------------------------------------------------------------------- +void CDirWatcher::AddFileToChangeList( const char *pchFile ) +{ + // make sure it isn't already in the list + FOR_EACH_LL( m_listChangedFiles, i ) + { + if ( !Q_stricmp( m_listChangedFiles[i], pchFile ) ) + return; + } + + m_listChangedFiles.AddToTail( pchFile ); +} + + +//----------------------------------------------------------------------------- +// Purpose: retrieve any changes +//----------------------------------------------------------------------------- +bool CDirWatcher::GetChangedFile( CUtlString *psFile ) +{ +#ifdef WIN32 + // this will trigger any pending directory reads + // this does get hit other places in the code; so the callback can happen at any time + ::SleepEx( 0, TRUE ); +#endif + + if ( !m_listChangedFiles.Count() ) + return false; + + *psFile = m_listChangedFiles[m_listChangedFiles.Head()]; + m_listChangedFiles.Remove( m_listChangedFiles.Head() ); + return true; +} + + + +#ifdef DBGFLAG_VALIDATE +void CDirWatcher::Validate( CValidator &validator, const char *pchName ) +{ + VALIDATE_SCOPE(); + + validator.ClaimMemory( m_pOverlapped ); + validator.ClaimMemory( m_pFileInfo ); + ValidateObj( m_listChangedFiles ); + FOR_EACH_LL( m_listChangedFiles, i ) + { + ValidateObj( m_listChangedFiles[i] ); + } +} +#endif + #endif // _PS3 || _X360
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