Defines | |
#define | GWEN_FSLOCK_CBID_IO "GWEN_FSLOCK_CBID_IO" |
#define | GWEN_FSLOCK_TIMEOUT_FOREVER (-1) |
#define | GWEN_FSLOCK_TIMEOUT_NONE (0) |
Typedefs | |
typedef GWEN_FSLOCK | GWEN_FSLOCK |
Enumerations | |
enum | GWEN_FSLOCK_RESULT { GWEN_FSLock_ResultOk = 0, GWEN_FSLock_ResultError, GWEN_FSLock_ResultTimeout, GWEN_FSLock_ResultBusy, GWEN_FSLock_ResultNoLock, GWEN_FSLock_ResultUserAbort } |
enum | GWEN_FSLOCK_TYPE { GWEN_FSLock_TypeUnknown = 0, GWEN_FSLock_TypeFile, GWEN_FSLock_TypeDir } |
Functions | |
GWENHYWFAR_API void | GWEN_FSLock_free (GWEN_FSLOCK *fl) |
GWENHYWFAR_API GWEN_FSLOCK_RESULT | GWEN_FSLock_Lock (GWEN_FSLOCK *fl, int timeout) |
GWENHYWFAR_API GWEN_FSLOCK * | GWEN_FSLock_new (const char *fname, GWEN_FSLOCK_TYPE t) |
GWENHYWFAR_API GWEN_FSLOCK_RESULT | GWEN_FSLock_Unlock (GWEN_FSLOCK *fl) |
The files in this group provide a very simple lock mechanism. When a file is to be locked a lockfile is created exclusively. If this lockfile can not be created exclusively (because it already exists) the file is assumed to be locked. This group can lock files and folders. For folders the lockfile name consists of the foldername plus "/.dir.lck", for files it is the filename plus ".lck". This only works if you have write-access to the folder or, if locking a file, to the folder containing the file to be locked.
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This function tries to acquire a lock for the given file/folder. It waits if necessary (using GWEN_WaitCallback) while waiting. This function enters and leaves the waitcallback GWEN_FSLOCK_CBID_IO.
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This function removes a lock.
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