fteqw/engine/common/fs.h

63 lines
3.9 KiB
C
Raw Normal View History

#include "hash.h"
#define FSVER 2
#define FF_NOTFOUND 0 //file wasn't found
#define FF_FOUND 1 //file was found
#define FF_SYMLINK 2 //file contents are the name of a different file (symlink). do a recursive lookup on the name
typedef struct
{
bucket_t buck;
int depth; /*shallower files will remove deeper files*/
} fsbucket_t;
extern hashtable_t filesystemhash; //this table is the one to build your hash references into
extern int fs_hash_dups; //for tracking efficiency. no functional use.
extern int fs_hash_files; //for tracking efficiency. no functional use.
struct searchpath_s;
struct searchpathfuncs_s
{
int fsver;
void (QDECL *ClosePath)(searchpathfuncs_t *handle);
void (QDECL *GetPathDetails)(searchpathfuncs_t *handle, char *outdetails, unsigned int sizeofdetails);
void (QDECL *BuildHash)(searchpathfuncs_t *handle, int depth, void (QDECL *FS_AddFileHash)(int depth, const char *fname, fsbucket_t *filehandle, void *pathhandle));
unsigned int (QDECL *FindFile)(searchpathfuncs_t *handle, flocation_t *loc, const char *name, void *hashedresult); //true if found (hashedresult can be NULL)
//note that if rawfile and offset are set, many Com_FileOpens will read the raw file
//otherwise ReadFile will be called instead.
void (QDECL *ReadFile)(searchpathfuncs_t *handle, flocation_t *loc, char *buffer); //reads the entire file in one go (size comes from loc, so make sure the loc is valid, this is for performance with compressed archives)
int (QDECL *EnumerateFiles)(searchpathfuncs_t *handle, const char *match, int (QDECL *func)(const char *fname, int fsize, void *parm, searchpathfuncs_t *spath), void *parm);
int (QDECL *GeneratePureCRC) (searchpathfuncs_t *handle, int seed, int usepure);
vfsfile_t * (QDECL *OpenVFS)(searchpathfuncs_t *handle, flocation_t *loc, const char *mode);
qboolean (QDECL *PollChanges)(searchpathfuncs_t *handle); //returns true if there were changes
qboolean (QDECL *RenameFile)(searchpathfuncs_t *handle, const char *oldname, const char *newname); //returns true on success, false if source doesn't exist, or if dest does.
qboolean (QDECL *RemoveFile)(searchpathfuncs_t *handle, const char *filename); //returns true on success, false if it wasn't found or is readonly.
qboolean (QDECL *MkDir)(searchpathfuncs_t *handle, const char *filename); //is this really needed?
};
//searchpathfuncs_t *(QDECL *OpenNew)(vfsfile_t *file, const char *desc); //returns a handle to a new pak/path
//the stdio filesystem is special as that's the starting point of the entire filesystem
//warning: the handle is known to be a string pointer to the dir name
extern searchpathfuncs_t *(QDECL VFSOS_OpenPath) (vfsfile_t *file, const char *desc);
extern searchpathfuncs_t *(QDECL FSZIP_LoadArchive) (vfsfile_t *packhandle, const char *desc);
extern searchpathfuncs_t *(QDECL FSPAK_LoadArchive) (vfsfile_t *packhandle, const char *desc);
extern searchpathfuncs_t *(QDECL FSDWD_LoadArchive) (vfsfile_t *packhandle, const char *desc);
vfsfile_t *QDECL VFSOS_Open(const char *osname, const char *mode);
vfsfile_t *FS_DecompressGZip(vfsfile_t *infile, vfsfile_t *outfile);
int FS_RegisterFileSystemType(void *module, const char *extension, searchpathfuncs_t *(QDECL *OpenNew)(vfsfile_t *file, const char *desc), qboolean loadscan);
void FS_UnRegisterFileSystemType(int idx);
void FS_UnRegisterFileSystemModule(void *module);
#define SPF_REFERENCED 1 //something has been loaded from this path. should filter out client references...
#define SPF_COPYPROTECTED 2 //downloads are not allowed fom here.
#define SPF_TEMPORARY 4 //a map-specific path, purged at map change.
#define SPF_EXPLICIT 8 //a root gamedir (bumps depth on gamedir depth checks).
#define SPF_UNTRUSTED 16 //has been downloaded from somewhere. configs inside it should never be execed with local access rights.
qboolean FS_LoadPackageFromFile(vfsfile_t *vfs, char *pname, char *localname, int *crc, unsigned int flags);