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filesystem: implement directory entries caching, to avoid excessive directory listing syscalls to emulate case-insensitive filesystems 

* simplify game directory initialization code
pull/2/head
Alibek Omarov 2 years ago
parent
e1ea3387ee
commit
3393e2d95c
6 changed files with 439 additions and 220 deletions
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  1. 331
      filesystem/dir.c
  2. 261
      filesystem/filesystem.c
  3. 21
      filesystem/filesystem_internal.h
  4. 19
      filesystem/pak.c
  5. 10
      filesystem/wad.c
  6. 17
      filesystem/zip.c

331
filesystem/dir.c
Unescape View File

@ -1,5 +1,5 @@
/* /*
dir.c - directory operations dir.c - caseinsensitive directory operations
Copyright (C) 2022 Alibek Omarov, Velaron Copyright (C) 2022 Alibek Omarov, Velaron
This program is free software: you can redistribute it and/or modify This program is free software: you can redistribute it and/or modify
@ -27,9 +27,309 @@ GNU General Public License for more details.
#include "xash3d_mathlib.h" #include "xash3d_mathlib.h"
#include "common/com_strings.h" #include "common/com_strings.h"
static void FS_Close_DIR( searchpath_t *search ) enum
{
DIRENTRY_EMPTY_DIRECTORY = 0, // don't care if it's not directory or it's empty
DIRENTRY_NOT_SCANNED = -1,
DIRENTRY_CASEINSENSITIVE = -2, // directory is already caseinsensitive, just copy whatever is left
};
typedef struct dir_s
{
string name;
int numentries;
struct dir_s *entries; // sorted
} dir_t;
static int FS_SortDir( const void *_a, const void *_b )
{
const dir_t *a = _a;
const dir_t *b = _b;
return Q_stricmp( a->name, b->name );
}
static void FS_FreeDirEntries( dir_t *dir )
{
if( dir->entries )
{
int i;
for( i = 0; i < dir->numentries; i++ )
FS_FreeDirEntries( &dir->entries[i] );
dir->entries = NULL;
}
dir->numentries = DIRENTRY_NOT_SCANNED;
}
static void FS_InitDirEntries( dir_t *dir, const stringlist_t *list )
{
int i;
if( !list->numstrings )
{
dir->numentries = DIRENTRY_EMPTY_DIRECTORY;
dir->entries = NULL;
return;
}
dir->numentries = list->numstrings;
dir->entries = Mem_Malloc( fs_mempool, sizeof( dir_t ) * dir->numentries );
for( i = 0; i < list->numstrings; i++ )
{
dir_t *entry = &dir->entries[i];
Q_strncpy( entry->name, list->strings[i], sizeof( entry->name ));
entry->numentries = DIRENTRY_NOT_SCANNED;
entry->entries = NULL;
}
qsort( dir->entries, dir->numentries, sizeof( dir->entries[0] ), FS_SortDir );
}
static void FS_PopulateDirEntries( dir_t *dir, const char *path )
{ {
#if XASH_WIN32 // Windows is always case insensitive
dir->numentries = DIRENTRY_CASEINSENSITIVE;
dir->entries = NULL;
#else
stringlist_t list;
if( !FS_SysFolderExists( path ))
{
dir->numentries = DIRENTRY_EMPTY_DIRECTORY;
dir->entries = NULL;
return;
}
stringlistinit( &list );
listdirectory( &list, path, false );
FS_InitDirEntries( dir, &list );
stringlistfreecontents( &list );
#endif
}
static int FS_FindDirEntry( dir_t *dir, const char *name )
{
int left, right;
if( dir->numentries < 0 )
return -1;
// look for the file (binary search)
left = 0;
right = dir->numentries - 1;
while( left <= right )
{
int middle = (left + right) / 2;
int diff;
diff = Q_stricmp( dir->entries[middle].name, name );
// found it
if( !diff )
return middle;
// if we're too far in the list
if( diff > 0 )
right = middle - 1;
else left = middle + 1;
}
return -1;
}
static void FS_MergeDirEntries( dir_t *dir, const stringlist_t *list )
{
int i;
dir_t temp;
FS_InitDirEntries( &temp, list );
// copy all entries that has the same name and has subentries
for( i = 0; i < dir->numentries; i++ )
{
int j;
// don't care about directories without subentries
if( dir->entries == NULL )
continue;
// try to find this directory in new tree
j = FS_FindDirEntry( &temp, dir->entries[i].name );
// not found, free memory
if( j < 0 )
{
FS_FreeDirEntries( &dir->entries[i] );
continue;
}
// found directory, move all entries
temp.entries[j].numentries = dir->entries[j].numentries;
temp.entries[j].entries = dir->entries[j].entries;
}
// now we can free old tree and replace it with temporary
Mem_Free( dir->entries );
dir->numentries = temp.numentries;
dir->entries = temp.entries;
}
static int FS_MaybeUpdateDirEntries( dir_t *dir, const char *path, const char *entryname )
{
stringlist_t list;
qboolean update = false;
int idx;
stringlistinit( &list );
listdirectory( &list, path, false );
// find the reason to update entries list
if( list.numstrings != dir->numentries )
{
// small optimization to not search string in the list
// and directly go updating entries
update = true;
}
else
{
for( idx = 0; idx < list.numstrings; idx++ )
{
if( !Q_stricmp( list.strings[idx], entryname ))
{
update = true;
break;
}
}
}
if( !update )
{
stringlistfreecontents( &list );
return -1;
}
FS_MergeDirEntries( dir, &list );
stringlistfreecontents( &list );
return FS_FindDirEntry( dir, entryname );
}
qboolean FS_FixFileCase( dir_t *dir, const char *path, char *dst, size_t len, qboolean createpath )
{
const char *prev = path;
const char *next = Q_strchrnul( prev, PATH_SEPARATOR );
size_t i = Q_strlen( dst ); // dst is expected to have searchpath filename
while( true )
{
char entryname[MAX_SYSPATH];
int ret;
// this subdirectory is case insensitive, just slam everything that's left
if( dir->numentries == DIRENTRY_CASEINSENSITIVE )
{
i += Q_strncpy( &dst[i], prev, len - i );
if( i >= len )
{
Con_Printf( "%s: overflow while searching %s (caseinsensitive entry)\n", __FUNCTION__, path );
return false;
}
}
// populate cache if needed
if( dir->numentries == DIRENTRY_NOT_SCANNED )
FS_PopulateDirEntries( dir, dst );
// get our entry name
Q_strncpy( entryname, prev, next - prev + 1 );
ret = FS_FindDirEntry( dir, entryname );
// didn't found, but does it exists in FS?
if( ret < 0 )
{
ret = FS_MaybeUpdateDirEntries( dir, dst, entryname );
if( ret < 0 )
{
// if we're creating files or folders, we don't care if path doesn't exist
// so copy everything that's left and exit without an error
if( createpath )
{
i += Q_strncpy( &dst[i], prev, len - i );
if( i >= len )
{
Con_Printf( "%s: overflow while searching %s (create path)\n", __FUNCTION__, path );
return false;
}
return true;
}
return false;
}
}
dir = &dir->entries[ret];
ret = Q_strncpy( &dst[i], dir->name, len - i );
// file not found, rescan...
if( !FS_SysFileOrFolderExists( dst ))
{
// strip failed part
dst[i] = 0;
ret = FS_MaybeUpdateDirEntries( dir, dst, entryname );
// file not found, exit... =/
if( ret < 0 )
{
// if we're creating files or folders, we don't care if path doesn't exist
// so copy everything that's left and exit without an error
if( createpath )
{
i += Q_strncpy( &dst[i], prev, len - i );
if( i >= len )
{
Con_Printf( "%s: overflow while searching %s (create path 2)\n", __FUNCTION__, path );
return false;
}
return true;
}
return false;
}
dir = &dir->entries[ret];
ret = Q_strncpy( &dst[i], dir->name, len - i );
}
i += ret;
if( i >= len ) // overflow!
{
Con_Printf( "%s: overflow while searching %s (appending fixed file name)\n", __FUNCTION__, path );
return false;
}
// end of string, found file, return
if( next[0] == '\0' )
break;
// move pointer one character forward, find next path split character
prev = next + 1;
next = Q_strchrnul( prev, PATH_SEPARATOR );
i += Q_strncpy( &dst[i], PATH_SEPARATOR_STR, len - i );
if( i >= len ) // overflow!
{
Con_Printf( "%s: overflow while searching %s (path separator)\n", __FUNCTION__, path );
return false;
}
}
return true;
}
static void FS_Close_DIR( searchpath_t *search )
{
FS_FreeDirEntries( search->dir );
Mem_Free( search->dir );
} }
static void FS_PrintInfo_DIR( searchpath_t *search, char *dst, size_t size ) static void FS_PrintInfo_DIR( searchpath_t *search, char *dst, size_t size )
@ -37,14 +337,21 @@ static void FS_PrintInfo_DIR( searchpath_t *search, char *dst, size_t size )
Q_strncpy( dst, search->filename, size ); Q_strncpy( dst, search->filename, size );
} }
static int FS_FindFile_DIR( searchpath_t *search, const char *path ) static int FS_FindFile_DIR( searchpath_t *search, const char *path, char *fixedname, size_t len )
{ {
char netpath[MAX_SYSPATH]; char netpath[MAX_SYSPATH];
Q_snprintf( netpath, sizeof( netpath ), "%s%s", search->filename, path ); Q_strncpy( netpath, search->filename, sizeof( netpath ));
if( !FS_FixFileCase( search->dir, path, netpath, sizeof( netpath ), false ))
return -1;
if( FS_SysFileExists( netpath, !( search->flags & FS_CUSTOM_PATH ) ) ) if( FS_SysFileExists( netpath, !FBitSet( search->flags, FS_CUSTOM_PATH )))
{
// return fixed case file name only local for that searchpath
if( fixedname )
Q_strncpy( fixedname, netpath + Q_strlen( search->filename ), len );
return 0; return 0;
}
return -1; return -1;
} }
@ -63,7 +370,7 @@ static void FS_Search_DIR( searchpath_t *search, stringlist_t *list, const char
separator = Q_max( slash, backslash ); separator = Q_max( slash, backslash );
separator = Q_max( separator, colon ); separator = Q_max( separator, colon );
basepathlength = separator ? (separator + 1 - pattern) : 0; basepathlength = separator ? (separator + 1 - pattern) : 0;
basepath = Mem_Calloc( fs_mempool, basepathlength + 1 ); basepath = Mem_Calloc( fs_mempool, basepathlength + 1 );
if( basepathlength ) memcpy( basepath, pattern, basepathlength ); if( basepathlength ) memcpy( basepath, pattern, basepathlength );
@ -100,6 +407,7 @@ static void FS_Search_DIR( searchpath_t *search, stringlist_t *list, const char
static int FS_FileTime_DIR( searchpath_t *search, const char *filename ) static int FS_FileTime_DIR( searchpath_t *search, const char *filename )
{ {
int time;
char path[MAX_SYSPATH]; char path[MAX_SYSPATH];
Q_snprintf( path, sizeof( path ), "%s%s", search->filename, filename ); Q_snprintf( path, sizeof( path ), "%s%s", search->filename, filename );
@ -127,9 +435,14 @@ void FS_InitDirectorySearchpath( searchpath_t *search, const char *path, int fla
search->pfnFileTime = FS_FileTime_DIR; search->pfnFileTime = FS_FileTime_DIR;
search->pfnFindFile = FS_FindFile_DIR; search->pfnFindFile = FS_FindFile_DIR;
search->pfnSearch = FS_Search_DIR; search->pfnSearch = FS_Search_DIR;
// create cache root
search->dir = Mem_Malloc( fs_mempool, sizeof( dir_t ));
search->dir->name[0] = 0; // root has no filename, unused
FS_PopulateDirEntries( search->dir, path );
} }
qboolean FS_AddDir_Fullpath( const char *path, qboolean *already_loaded, int flags ) searchpath_t *FS_AddDir_Fullpath( const char *path, qboolean *already_loaded, int flags )
{ {
searchpath_t *search; searchpath_t *search;
@ -139,7 +452,7 @@ qboolean FS_AddDir_Fullpath( const char *path, qboolean *already_loaded, int fla
{ {
if( already_loaded ) if( already_loaded )
*already_loaded = true; *already_loaded = true;
return true; return search;
} }
} }
@ -154,5 +467,5 @@ qboolean FS_AddDir_Fullpath( const char *path, qboolean *already_loaded, int fla
Con_Printf( "Adding directory: %s\n", path ); Con_Printf( "Adding directory: %s\n", path );
return true; return search;
} }

261
filesystem/filesystem.c
Unescape View File

@ -51,8 +51,8 @@ searchpath_t *fs_searchpaths = NULL; // chain
char fs_rodir[MAX_SYSPATH]; char fs_rodir[MAX_SYSPATH];
char fs_rootdir[MAX_SYSPATH]; char fs_rootdir[MAX_SYSPATH];
char fs_writedir[MAX_SYSPATH]; // path that game allows to overwrite, delete and rename files (and create new of course) char fs_writedir[MAX_SYSPATH]; // path that game allows to overwrite, delete and rename files (and create new of course)
searchpath_t *fs_writepath;
static searchpath_t fs_directpath; // static direct path
static char fs_basedir[MAX_SYSPATH]; // base game directory static char fs_basedir[MAX_SYSPATH]; // base game directory
static char fs_gamedir[MAX_SYSPATH]; // game current directory static char fs_gamedir[MAX_SYSPATH]; // game current directory
#if !XASH_WIN32 #if !XASH_WIN32
@ -160,7 +160,7 @@ void stringlistappend( stringlist_t *list, char *text )
list->numstrings++; list->numstrings++;
} }
static void stringlistsort( stringlist_t *list ) void stringlistsort( stringlist_t *list )
{ {
char *temp; char *temp;
int i, j; int i, j;
@ -243,109 +243,6 @@ OTHER PRIVATE FUNCTIONS
============================================================================= =============================================================================
*/ */
/*
==================
FS_FixFileCase
emulate WIN32 FS behaviour when opening local file
==================
*/
const char *FS_FixFileCase( const char *path )
{
#if defined __DOS__ & !defined __WATCOM_LFN__
// not fix, but convert to 8.3 CAPS and rotate slashes
// it is still recommended to package game data
static char out[PATH_MAX];
int i = 0;
int last = 0;
while(*path)
{
char c = *path++;
if(c == '/') c = '\\';
else c = toupper(c);
out[i++] = c;
if(c == '\\' || c == '.')
{
if( i - last > 8 )
{
char *l = &out[last];
l[6] = '~';
l[7] = '1';
l[8] = c;
i = last + 9;
}
last = i;
}
}
out[i] = 0;
return out;
#elif !XASH_WIN32 && !XASH_IOS // assume case insensitive
DIR *dir;
struct dirent *entry;
char dirpath[PATH_MAX], *filename;
static char fixedpath[PATH_MAX];
if( !fs_caseinsensitive )
return path;
if( path[0] != '/' )
Q_snprintf( dirpath, sizeof( dirpath ), "./%s", path );
else Q_strncpy( dirpath, path, PATH_MAX );
filename = Q_strrchr( dirpath, '/' );
if( filename )
*filename++ = '\0';
else
{
filename = (char*)path;
Q_strcpy( dirpath, ".");
}
/* android has too slow directory scanning,
so drop out some not useful cases */
if( filename - dirpath > 4 )
{
char *point;
// too many wad textures
if( !Q_stricmp( filename - 5, ".wad") )
return path;
point = Q_strchr( filename, '.' );
if( point )
{
if( !Q_strcmp( point, ".mip") || !Q_strcmp( point, ".dds" ) || !Q_strcmp( point, ".ent" ) )
return path;
if( filename[0] == '{' )
return path;
}
}
//Con_Reportf( "FS_FixFileCase: %s\n", path );
if( !( dir = opendir( dirpath ) ) )
return path;
while( ( entry = readdir( dir ) ) )
{
if( Q_stricmp( entry->d_name, filename ) )
continue;
Q_snprintf( fixedpath, sizeof( fixedpath ), "%s/%s", dirpath, entry->d_name );
//Con_Reportf( "FS_FixFileCase: %s %s %s\n", dirpath, filename, entry->d_name );
path = fixedpath;
break;
}
closedir( dir );
#endif
return path;
}
#if XASH_WIN32 #if XASH_WIN32
/* /*
==================== ====================
@ -397,7 +294,7 @@ static qboolean FS_AddArchive_Fullpath( const char *file, qboolean *already_load
{ {
const char *ext = COM_FileExtension( file ); const char *ext = COM_FileExtension( file );
if( !Q_stricmp( ext, "pk3" ) ) if( !Q_stricmp( ext, "pk3" ))
return FS_AddZip_Fullpath( file, already_loaded, flags ); return FS_AddZip_Fullpath( file, already_loaded, flags );
else if ( !Q_stricmp( ext, "pak" )) else if ( !Q_stricmp( ext, "pak" ))
return FS_AddPak_Fullpath( file, already_loaded, flags ); return FS_AddPak_Fullpath( file, already_loaded, flags );
@ -416,13 +313,11 @@ then loads and adds pak1.pak pak2.pak ...
*/ */
void FS_AddGameDirectory( const char *dir, uint flags ) void FS_AddGameDirectory( const char *dir, uint flags )
{ {
stringlist_t list; stringlist_t list;
searchpath_t *search; searchpath_t *search;
string fullpath; char fullpath[MAX_SYSPATH];
int i; int i;
if( !FBitSet( flags, FS_NOWRITE_PATH ))
Q_strncpy( fs_writedir, dir, sizeof( fs_writedir ));
stringlistinit( &list ); stringlistinit( &list );
listdirectory( &list, dir, false ); listdirectory( &list, dir, false );
stringlistsort( &list ); stringlistsort( &list );
@ -430,41 +325,36 @@ void FS_AddGameDirectory( const char *dir, uint flags )
// add any PAK package in the directory // add any PAK package in the directory
for( i = 0; i < list.numstrings; i++ ) for( i = 0; i < list.numstrings; i++ )
{ {
if( !Q_stricmp( COM_FileExtension( list.strings[i] ), "pak" )) const char *ext = COM_FileExtension( list.strings[i] );
if( !Q_stricmp( ext, "pak" ))
{ {
Q_sprintf( fullpath, "%s%s", dir, list.strings[i] ); Q_snprintf( fullpath, sizeof( fullpath ), "%s%s", dir, list.strings[i] );
FS_AddPak_Fullpath( fullpath, NULL, flags ); FS_AddPak_Fullpath( fullpath, NULL, flags );
} }
} else if( !Q_stricmp( ext, "pk3" ))
// add any Zip package in the directory
for( i = 0; i < list.numstrings; i++ )
{
if( !Q_stricmp( COM_FileExtension( list.strings[i] ), "pk3" ) )
{ {
Q_sprintf( fullpath, "%s%s", dir, list.strings[i] ); Q_snprintf( fullpath, sizeof( fullpath ), "%s%s", dir, list.strings[i] );
FS_AddZip_Fullpath( fullpath, NULL, flags ); FS_AddZip_Fullpath( fullpath, NULL, flags );
} }
} else if( !Q_stricmp( ext, "wad" ))
FS_AllowDirectPaths( true );
// add any WAD package in the directory
for( i = 0; i < list.numstrings; i++ )
{
if( !Q_stricmp( COM_FileExtension( list.strings[i] ), "wad" ))
{ {
Q_sprintf( fullpath, "%s%s", dir, list.strings[i] ); FS_AllowDirectPaths( true );
Q_snprintf( fullpath, sizeof( fullpath ), "%s%s", dir, list.strings[i] );
FS_AddWad_Fullpath( fullpath, NULL, flags ); FS_AddWad_Fullpath( fullpath, NULL, flags );
FS_AllowDirectPaths( false );
} }
} }
stringlistfreecontents( &list ); stringlistfreecontents( &list );
FS_AllowDirectPaths( false );
// add the directory to the search path // add the directory to the search path
// (unpacked files have the priority over packed files) // (unpacked files have the priority over packed files)
FS_AddDir_Fullpath( dir, NULL, flags ); search = FS_AddDir_Fullpath( dir, NULL, flags );
if( !FBitSet( flags, FS_NOWRITE_PATH ))
{
Q_strncpy( fs_writedir, dir, sizeof( fs_writedir ));
fs_writepath = search;
}
} }
/* /*
@ -929,7 +819,7 @@ void FS_ParseGenericGameInfo( gameinfo_t *GameInfo, const char *buf, const qbool
} }
// make sure what gamedir is really exist // make sure what gamedir is really exist
if( !FS_SysFolderExists( va( "%s"PATH_SPLITTER"%s", fs_rootdir, GameInfo->falldir ))) if( !FS_SysFolderExists( va( "%s" PATH_SEPARATOR_STR "%s", fs_rootdir, GameInfo->falldir )))
GameInfo->falldir[0] = '\0'; GameInfo->falldir[0] = '\0';
} }
@ -1278,7 +1168,7 @@ search for library, assume index is valid
static qboolean FS_FindLibrary( const char *dllname, qboolean directpath, fs_dllinfo_t *dllInfo ) static qboolean FS_FindLibrary( const char *dllname, qboolean directpath, fs_dllinfo_t *dllInfo )
{ {
searchpath_t *search; searchpath_t *search;
int index, start = 0, i, len; int index, start = 0, i, len;
fs_ext_path = directpath; fs_ext_path = directpath;
@ -1302,7 +1192,7 @@ static qboolean FS_FindLibrary( const char *dllname, qboolean directpath, fs_dll
COM_DefaultExtension( dllInfo->shortPath, "."OS_LIB_EXT ); // apply ext if forget COM_DefaultExtension( dllInfo->shortPath, "."OS_LIB_EXT ); // apply ext if forget
search = FS_FindFile( dllInfo->shortPath, &index, false ); search = FS_FindFile( dllInfo->shortPath, &index, NULL, 0, false );
if( !search && !directpath ) if( !search && !directpath )
{ {
@ -1310,7 +1200,7 @@ static qboolean FS_FindLibrary( const char *dllname, qboolean directpath, fs_dll
// trying check also 'bin' folder for indirect paths // trying check also 'bin' folder for indirect paths
Q_strncpy( dllInfo->shortPath, dllname, sizeof( dllInfo->shortPath )); Q_strncpy( dllInfo->shortPath, dllname, sizeof( dllInfo->shortPath ));
search = FS_FindFile( dllInfo->shortPath, &index, false ); search = FS_FindFile( dllInfo->shortPath, &index, NULL, 0, false );
if( !search ) return false; // unable to find if( !search ) return false; // unable to find
} }
@ -1433,8 +1323,11 @@ qboolean FS_InitStdio( qboolean caseinsensitive, const char *rootdir, const char
for( i = 0; i < dirs.numstrings; i++ ) for( i = 0; i < dirs.numstrings; i++ )
{ {
char *roPath = va( "%s" PATH_SPLITTER "%s" PATH_SPLITTER, fs_rodir, dirs.strings[i] ); char roPath[MAX_SYSPATH];
char *rwPath = va( "%s" PATH_SPLITTER "%s" PATH_SPLITTER, fs_rootdir, dirs.strings[i] ); char rwPath[MAX_SYSPATH];
Q_snprintf( roPath, sizeof( roPath ), "%s" PATH_SEPARATOR_STR "%s" PATH_SEPARATOR_STR, fs_rodir, dirs.strings[i] );
Q_snprintf( rwPath, sizeof( rwPath ), "%s" PATH_SEPARATOR_STR "%s" PATH_SEPARATOR_STR, fs_rootdir, dirs.strings[i] );
// check if it's a directory // check if it's a directory
if( !FS_SysFolderExists( roPath )) if( !FS_SysFolderExists( roPath ))
@ -1468,6 +1361,8 @@ qboolean FS_InitStdio( qboolean caseinsensitive, const char *rootdir, const char
} }
// build list of game directories here // build list of game directories here
if( COM_CheckStringEmpty( fs_rodir ))
FS_AddGameDirectory( va( "%s/", fs_rodir ), FS_STATIC_PATH|FS_NOWRITE_PATH );
FS_AddGameDirectory( "./", FS_STATIC_PATH ); FS_AddGameDirectory( "./", FS_STATIC_PATH );
for( i = 0; i < dirs.numstrings; i++ ) for( i = 0; i < dirs.numstrings; i++ )
@ -1620,14 +1515,6 @@ file_t *FS_SysOpen( const char *filepath, const char *mode )
#if !XASH_WIN32 #if !XASH_WIN32
if( file->handle < 0 ) if( file->handle < 0 )
{
const char *ffilepath = FS_FixFileCase( filepath );
if( ffilepath != filepath )
file->handle = open( ffilepath, mod|opt, 0666 );
if( file->handle >= 0 )
FS_BackupFileName( file, ffilepath, mod|opt );
}
else
FS_BackupFileName( file, filepath, mod|opt ); FS_BackupFileName( file, filepath, mod|opt );
#endif #endif
@ -1717,14 +1604,6 @@ qboolean FS_SysFileExists( const char *path, qboolean caseinsensitive )
ret = stat( path, &buf ); ret = stat( path, &buf );
// speedup custom path search
if( caseinsensitive && ( ret < 0 ) )
{
const char *fpath = FS_FixFileCase( path );
if( fpath != path )
ret = stat( fpath, &buf );
}
if( ret < 0 ) if( ret < 0 )
return false; return false;
@ -1777,6 +1656,26 @@ qboolean FS_SysFolderExists( const char *path )
#endif #endif
} }
/*
==============
FS_SysFileOrFolderExists
Check if filesystem entry exists at all, don't mind the type
==============
*/
qboolean FS_SysFileOrFolderExists( const char *path )
{
#if XASH_WIN32
return GetFileAttributes( path ) != -1;
#elif XASH_POSIX
struct stat buf;
return stat( path, &buf ) >= 0;
#else
#error
#endif
}
/* /*
==================== ====================
FS_FindFile FS_FindFile
@ -1787,7 +1686,7 @@ Return the searchpath where the file was found (or NULL)
and the file index in the package if relevant and the file index in the package if relevant
==================== ====================
*/ */
searchpath_t *FS_FindFile( const char *name, int *index, qboolean gamedironly ) searchpath_t *FS_FindFile( const char *name, int *index, char *fixedname, size_t len, qboolean gamedironly )
{ {
searchpath_t *search; searchpath_t *search;
@ -1799,7 +1698,7 @@ searchpath_t *FS_FindFile( const char *name, int *index, qboolean gamedironly )
if( gamedironly & !FBitSet( search->flags, FS_GAMEDIRONLY_SEARCH_FLAGS )) if( gamedironly & !FBitSet( search->flags, FS_GAMEDIRONLY_SEARCH_FLAGS ))
continue; continue;
pack_ind = search->pfnFindFile( search, name ); pack_ind = search->pfnFindFile( search, name, fixedname, len );
if( pack_ind >= 0 ) if( pack_ind >= 0 )
{ {
if( index ) *index = pack_ind; if( index ) *index = pack_ind;
@ -1811,14 +1710,25 @@ searchpath_t *FS_FindFile( const char *name, int *index, qboolean gamedironly )
{ {
char netpath[MAX_SYSPATH], dirpath[MAX_SYSPATH]; char netpath[MAX_SYSPATH], dirpath[MAX_SYSPATH];
Q_snprintf( dirpath, sizeof( dirpath ), "%s" PATH_SPLITTER, fs_rootdir ); Q_snprintf( dirpath, sizeof( dirpath ), "%s" PATH_SEPARATOR_STR, fs_rootdir );
Q_snprintf( netpath, sizeof( netpath ), "%s%s", dirpath, name ); Q_snprintf( netpath, sizeof( netpath ), "%s%s", dirpath, name );
if( FS_SysFileExists( netpath, true )) if( FS_SysFileExists( netpath, true ))
{ {
static searchpath_t fs_directpath;
// clear old dir cache
if( fs_directpath.pfnClose )
fs_directpath.pfnClose( &fs_directpath );
// just copy the name, we don't do case sensitivity fix there
if( fixedname )
{
Q_strncpy( fixedname, name, len );
}
FS_InitDirectorySearchpath( &fs_directpath, dirpath, 0 ); FS_InitDirectorySearchpath( &fs_directpath, dirpath, 0 );
if( index != NULL ) if( index != NULL )
*index = -1; *index = 0;
return &fs_directpath; return &fs_directpath;
} }
} }
@ -1839,16 +1749,17 @@ Look for a file in the search paths and open it in read-only mode
*/ */
file_t *FS_OpenReadFile( const char *filename, const char *mode, qboolean gamedironly ) file_t *FS_OpenReadFile( const char *filename, const char *mode, qboolean gamedironly )
{ {
searchpath_t *search; searchpath_t *search;
int pack_ind; char netpath[MAX_SYSPATH];
int pack_ind;
search = FS_FindFile( filename, &pack_ind, gamedironly ); search = FS_FindFile( filename, &pack_ind, netpath, sizeof( netpath ), gamedironly );
// not found? // not found?
if( search == NULL ) if( search == NULL )
return NULL; return NULL;
return search->pfnOpenFile( search, filename, mode, pack_ind ); return search->pfnOpenFile( search, netpath, mode, pack_ind );
} }
/* /*
@ -1884,7 +1795,7 @@ file_t *FS_Open( const char *filepath, const char *mode, qboolean gamedironly )
// open the file on disk directly // open the file on disk directly
Q_sprintf( real_path, "%s/%s", fs_writedir, filepath ); Q_sprintf( real_path, "%s/%s", fs_writedir, filepath );
FS_CreatePath( real_path );// Create directories up to the file FS_CreatePath( real_path ); // Create directories up to the file
return FS_SysOpen( real_path, mode ); return FS_SysOpen( real_path, mode );
} }
@ -2450,9 +2361,7 @@ Look for a file in the packages and in the filesystem
*/ */
int GAME_EXPORT FS_FileExists( const char *filename, int gamedironly ) int GAME_EXPORT FS_FileExists( const char *filename, int gamedironly )
{ {
if( FS_FindFile( filename, NULL, gamedironly )) return FS_FindFile( filename, NULL, NULL, 0, gamedironly ) != NULL;
return true;
return false;
} }
/* /*
@ -2465,15 +2374,16 @@ return NULL for file in pack
*/ */
const char *FS_GetDiskPath( const char *name, qboolean gamedironly ) const char *FS_GetDiskPath( const char *name, qboolean gamedironly )
{ {
static char temp[MAX_SYSPATH];
searchpath_t *search; searchpath_t *search;
search = FS_FindFile( name, NULL, gamedironly ); search = FS_FindFile( name, NULL, temp, sizeof( temp ), gamedironly );
if( search ) if( search )
{ {
if( search->type != SEARCHPATH_PLAIN ) // file in pack or wad if( search->type != SEARCHPATH_PLAIN ) // file in pack or wad
return NULL; return NULL;
return va( "%s%s", search->filename, name ); return temp;
} }
return NULL; return NULL;
@ -2526,13 +2436,14 @@ return time of creation file in seconds
*/ */
int FS_FileTime( const char *filename, qboolean gamedironly ) int FS_FileTime( const char *filename, qboolean gamedironly )
{ {
searchpath_t *search; searchpath_t *search;
int pack_ind; char netpath[MAX_SYSPATH];
int pack_ind;
search = FS_FindFile( filename, &pack_ind, gamedironly ); search = FS_FindFile( filename, &pack_ind, netpath, sizeof( netpath ), gamedironly );
if( !search ) return -1; // doesn't exist if( !search ) return -1; // doesn't exist
return search->pfnFileTime( search, filename ); return search->pfnFileTime( search, netpath );
} }
/* /*
@ -2550,6 +2461,10 @@ qboolean FS_Rename( const char *oldname, const char *newname )
if( !oldname || !newname || !*oldname || !*newname ) if( !oldname || !newname || !*oldname || !*newname )
return false; return false;
// no work done
if( !Q_stricmp( oldname, newname ))
return true;
Q_snprintf( oldpath, sizeof( oldpath ), "%s%s", fs_writedir, oldname ); Q_snprintf( oldpath, sizeof( oldpath ), "%s%s", fs_writedir, oldname );
Q_snprintf( newpath, sizeof( newpath ), "%s%s", fs_writedir, newname ); Q_snprintf( newpath, sizeof( newpath ), "%s%s", fs_writedir, newname );

21
filesystem/filesystem_internal.h
Unescape View File

@ -24,6 +24,7 @@ extern "C"
{ {
#endif #endif
typedef struct dir_s dir_t;
typedef struct zip_s zip_t; typedef struct zip_s zip_t;
typedef struct pack_s pack_t; typedef struct pack_s pack_t;
typedef struct wfile_s wfile_t; typedef struct wfile_s wfile_t;
@ -72,6 +73,7 @@ typedef struct searchpath_s
union union
{ {
dir_t *dir;
pack_t *pack; pack_t *pack;
wfile_t *wad; wfile_t *wad;
zip_t *zip; zip_t *zip;
@ -83,7 +85,7 @@ typedef struct searchpath_s
void (*pfnClose)( struct searchpath_s *search ); void (*pfnClose)( struct searchpath_s *search );
file_t *(*pfnOpenFile)( struct searchpath_s *search, const char *filename, const char *mode, int pack_ind ); file_t *(*pfnOpenFile)( struct searchpath_s *search, const char *filename, const char *mode, int pack_ind );
int (*pfnFileTime)( struct searchpath_s *search, const char *filename ); int (*pfnFileTime)( struct searchpath_s *search, const char *filename );
int (*pfnFindFile)( struct searchpath_s *search, const char *path ); int (*pfnFindFile)( struct searchpath_s *search, const char *path, char *fixedname, size_t len );
void (*pfnSearch)( struct searchpath_s *search, stringlist_t *list, const char *pattern, int caseinsensitive ); void (*pfnSearch)( struct searchpath_s *search, stringlist_t *list, const char *pattern, int caseinsensitive );
} searchpath_t; } searchpath_t;
@ -157,6 +159,13 @@ qboolean FS_WriteFile( const char *filename, const void *data, fs_offset_t len )
qboolean CRC32_File( dword *crcvalue, const char *filename ); qboolean CRC32_File( dword *crcvalue, const char *filename );
qboolean MD5_HashFile( byte digest[16], const char *pszFileName, uint seed[4] ); qboolean MD5_HashFile( byte digest[16], const char *pszFileName, uint seed[4] );
// stringlist ops
void stringlistinit( stringlist_t *list );
void stringlistfreecontents( stringlist_t *list );
void stringlistappend( stringlist_t *list, char *text );
void stringlistsort( stringlist_t *list );
void listdirectory( stringlist_t *list, const char *path, qboolean lowercase );
// filesystem ops // filesystem ops
int FS_FileExists( const char *filename, int gamedironly ); int FS_FileExists( const char *filename, int gamedironly );
int FS_FileTime( const char *filename, qboolean gamedironly ); int FS_FileTime( const char *filename, qboolean gamedironly );
@ -165,19 +174,15 @@ qboolean FS_Rename( const char *oldname, const char *newname );
qboolean FS_Delete( const char *path ); qboolean FS_Delete( const char *path );
qboolean FS_SysFileExists( const char *path, qboolean casesensitive ); qboolean FS_SysFileExists( const char *path, qboolean casesensitive );
const char *FS_GetDiskPath( const char *name, qboolean gamedironly ); const char *FS_GetDiskPath( const char *name, qboolean gamedironly );
void stringlistinit( stringlist_t *list );
void stringlistfreecontents( stringlist_t *list );
void stringlistappend( stringlist_t *list, char *text );
void listdirectory( stringlist_t *list, const char *path, qboolean lowercase );
void FS_CreatePath( char *path ); void FS_CreatePath( char *path );
qboolean FS_SysFolderExists( const char *path ); qboolean FS_SysFolderExists( const char *path );
qboolean FS_SysFileOrFolderExists( const char *path );
file_t *FS_OpenReadFile( const char *filename, const char *mode, qboolean gamedironly ); file_t *FS_OpenReadFile( const char *filename, const char *mode, qboolean gamedironly );
int FS_SysFileTime( const char *filename ); int FS_SysFileTime( const char *filename );
file_t *FS_OpenHandle( const char *syspath, int handle, fs_offset_t offset, fs_offset_t len ); file_t *FS_OpenHandle( const char *syspath, int handle, fs_offset_t offset, fs_offset_t len );
file_t *FS_SysOpen( const char *filepath, const char *mode ); file_t *FS_SysOpen( const char *filepath, const char *mode );
const char *FS_FixFileCase( const char *path ); searchpath_t *FS_FindFile( const char *name, int *index, char *fixedname, size_t len, qboolean gamedironly );
searchpath_t *FS_FindFile( const char *name, int *index, qboolean gamedironly );
// //
// pak.c // pak.c
@ -206,7 +211,7 @@ qboolean FS_AddZip_Fullpath( const char *zipfile, qboolean *already_loaded, int
// //
// dir.c // dir.c
// //
qboolean FS_AddDir_Fullpath( const char *path, qboolean *already_loaded, int flags ); searchpath_t *FS_AddDir_Fullpath( const char *path, qboolean *already_loaded, int flags );
void FS_InitDirectorySearchpath( searchpath_t *search, const char *path, int flags ); void FS_InitDirectorySearchpath( searchpath_t *search, const char *path, int flags );
#ifdef __cplusplus #ifdef __cplusplus

19
filesystem/pak.c
Unescape View File

@ -104,15 +104,6 @@ static pack_t *FS_LoadPackPAK( const char *packfile, int *error )
packhandle = open( packfile, O_RDONLY|O_BINARY ); packhandle = open( packfile, O_RDONLY|O_BINARY );
#if !XASH_WIN32
if( packhandle < 0 )
{
const char *fpackfile = FS_FixFileCase( packfile );
if( fpackfile != packfile )
packhandle = open( fpackfile, O_RDONLY|O_BINARY );
}
#endif
if( packhandle < 0 ) if( packhandle < 0 )
{ {
Con_Reportf( "%s couldn't open: %s\n", packfile, strerror( errno )); Con_Reportf( "%s couldn't open: %s\n", packfile, strerror( errno ));
@ -210,7 +201,7 @@ FS_FindFile_PAK
=========== ===========
*/ */
static int FS_FindFile_PAK( searchpath_t *search, const char *path ) static int FS_FindFile_PAK( searchpath_t *search, const char *path, char *fixedname, size_t len )
{ {
int left, right, middle; int left, right, middle;
@ -227,6 +218,8 @@ static int FS_FindFile_PAK( searchpath_t *search, const char *path )
// Found it // Found it
if( !diff ) if( !diff )
{ {
if( fixedname )
Q_strncpy( fixedname, search->pack->files[middle].name, len );
return middle; return middle;
} }
@ -359,8 +352,6 @@ qboolean FS_AddPak_Fullpath( const char *pakfile, qboolean *already_loaded, int
if( pak ) if( pak )
{ {
string fullpath;
search = (searchpath_t *)Mem_Calloc( fs_mempool, sizeof( searchpath_t )); search = (searchpath_t *)Mem_Calloc( fs_mempool, sizeof( searchpath_t ));
Q_strncpy( search->filename, pakfile, sizeof( search->filename )); Q_strncpy( search->filename, pakfile, sizeof( search->filename ));
search->pack = pak; search->pack = pak;
@ -384,7 +375,9 @@ qboolean FS_AddPak_Fullpath( const char *pakfile, qboolean *already_loaded, int
{ {
if( !Q_stricmp( COM_FileExtension( pak->files[i].name ), "wad" )) if( !Q_stricmp( COM_FileExtension( pak->files[i].name ), "wad" ))
{ {
Q_snprintf( fullpath, MAX_STRING, "%s/%s", pakfile, pak->files[i].name ); char fullpath[MAX_SYSPATH];
Q_snprintf( fullpath, sizeof( fullpath ), "%s/%s", pakfile, pak->files[i].name );
FS_AddWad_Fullpath( fullpath, NULL, flags ); FS_AddWad_Fullpath( fullpath, NULL, flags );
} }
} }

10
filesystem/wad.c
Unescape View File

@ -299,10 +299,6 @@ static wfile_t *W_Open( const char *filename, int *error )
wad->handle = FS_Open( basename, "rb", false ); wad->handle = FS_Open( basename, "rb", false );
// HACKHACK: try to open WAD by full path for RoDir, when searchpaths are not ready
if( COM_CheckStringEmpty( fs_rodir ) && fs_ext_path && wad->handle == NULL )
wad->handle = FS_SysOpen( filename, "rb" );
if( wad->handle == NULL ) if( wad->handle == NULL )
{ {
Con_Reportf( S_ERROR "W_Open: couldn't open %s\n", filename ); Con_Reportf( S_ERROR "W_Open: couldn't open %s\n", filename );
@ -430,7 +426,7 @@ FS_FindFile_WAD
=========== ===========
*/ */
static int FS_FindFile_WAD( searchpath_t *search, const char *path ) static int FS_FindFile_WAD( searchpath_t *search, const char *path, char *fixedname, size_t len )
{ {
dlumpinfo_t *lump; dlumpinfo_t *lump;
signed char type = W_TypeFromExt( path ); signed char type = W_TypeFromExt( path );
@ -469,6 +465,8 @@ static int FS_FindFile_WAD( searchpath_t *search, const char *path )
if( lump ) if( lump )
{ {
if( fixedname )
Q_strncpy( fixedname, lump->name, len );
return lump - search->wad->lumps; return lump - search->wad->lumps;
} }
@ -677,7 +675,7 @@ byte *FS_LoadWADFile( const char *path, fs_offset_t *lumpsizeptr, qboolean gamed
searchpath_t *search; searchpath_t *search;
int index; int index;
search = FS_FindFile( path, &index, gamedironly ); search = FS_FindFile( path, &index, NULL, 0, gamedironly );
if( search && search->type == SEARCHPATH_WAD ) if( search && search->type == SEARCHPATH_WAD )
return W_ReadLump( search->wad, &search->wad->lumps[index], lumpsizeptr ); return W_ReadLump( search->wad, &search->wad->lumps[index], lumpsizeptr );
return NULL; return NULL;

17
filesystem/zip.c
Unescape View File

@ -202,15 +202,6 @@ static zip_t *FS_LoadZip( const char *zipfile, int *error )
zip->handle = open( zipfile, O_RDONLY|O_BINARY ); zip->handle = open( zipfile, O_RDONLY|O_BINARY );
#if !XASH_WIN32
if( zip->handle < 0 )
{
const char *fzipfile = FS_FixFileCase( zipfile );
if( fzipfile != zipfile )
zip->handle = open( fzipfile, O_RDONLY|O_BINARY );
}
#endif
if( zip->handle < 0 ) if( zip->handle < 0 )
{ {
Con_Reportf( S_ERROR "%s couldn't open\n", zipfile ); Con_Reportf( S_ERROR "%s couldn't open\n", zipfile );
@ -439,7 +430,7 @@ byte *FS_LoadZIPFile( const char *path, fs_offset_t *sizeptr, qboolean gamediron
if( sizeptr ) *sizeptr = 0; if( sizeptr ) *sizeptr = 0;
search = FS_FindFile( path, &index, gamedironly ); search = FS_FindFile( path, &index, NULL, 0, gamedironly );
if( !search || search->type != SEARCHPATH_ZIP ) if( !search || search->type != SEARCHPATH_ZIP )
return NULL; return NULL;
@ -593,7 +584,7 @@ FS_FindFile_ZIP
=========== ===========
*/ */
int FS_FindFile_ZIP( searchpath_t *search, const char *path ) int FS_FindFile_ZIP( searchpath_t *search, const char *path, char *fixedname, size_t len )
{ {
int left, right, middle; int left, right, middle;
@ -609,7 +600,11 @@ int FS_FindFile_ZIP( searchpath_t *search, const char *path )
// Found it // Found it
if( !diff ) if( !diff )
{
if( fixedname )
Q_strncpy( fixedname, search->zip->files[middle].name, len );
return middle; return middle;
}
// if we're too far in the list // if we're too far in the list
if( diff > 0 ) if( diff > 0 )

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