95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
|
|
||
|
|
|
||
|
|
#ifndef _DLM_H
|
||
|
|
#define _DLM_H
|
||
|
|
|
||
|
|
#define DLM_VERSION 1
|
||
|
|
#define DLM_VBLK_SZ 32
|
||
|
|
|
||
|
|
typedef HANDLE dlm_lockid_t;
|
||
|
|
typedef UCHAR dlm_nodeid_t;
|
||
|
|
typedef CHAR dlm_mode_t;
|
||
|
|
typedef HANDLE dlm_lockval_t;
|
||
|
|
typedef HANDLE dlm_cevent_t;
|
||
|
|
typedef HANDLE dlm_bevent_t;
|
||
|
|
typedef char dlm_vblk[DLM_VBLK_SZ];
|
||
|
|
typedef dlm_vblk *dlm_vblk_t;
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
DLM_MODE_INVAL = -1,
|
||
|
|
DLM_MODE_NL = 0,
|
||
|
|
DLM_MODE_CR = 1,
|
||
|
|
DLM_MODE_CW = 2,
|
||
|
|
DLM_MODE_PR = 3,
|
||
|
|
DLM_MODE_PW = 4,
|
||
|
|
DLM_MODE_EX = 5
|
||
|
|
}dlm_mode_type_t;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#define DLM_ERROR_SUCCESS 0
|
||
|
|
#define DLM_ERROR_GRANTED 0
|
||
|
|
#define DLM_ERROR_QUEUED 1
|
||
|
|
#define DLM_ERROR_CANCELED 2
|
||
|
|
|
||
|
|
#define DLM_ERROR_BADID 11
|
||
|
|
#define DLM_ERROR_NOMEM 12
|
||
|
|
#define DLM_ERROR_BADMODE 13
|
||
|
|
|
||
|
|
#define DLM_ERROR_NOOP 15
|
||
|
|
#define DLM_ERROR_WOULDBLOCK 16
|
||
|
|
#define DLM_ERROR_INVAL 17
|
||
|
|
#define DLM_ERROR_INVALOP 18
|
||
|
|
#define DLM_ERROR_LOCKWAIT 19
|
||
|
|
#define DLM_ERROR_BUSY 20
|
||
|
|
#define DLM_ERROR_NOTOWNER 21
|
||
|
|
|
||
|
|
|
||
|
|
// List of DLM supported Flags
|
||
|
|
#define DLM_FLAGS_FASTLOCK 0x0001 // issue convert without fairness
|
||
|
|
#define DLM_FLAGS_TRYLOCK 0x0002 // if can't get it, don't bother
|
||
|
|
#define DLM_FLAGS_ASYNC 0x0004 // don't block
|
||
|
|
#define DLM_FLAGS_EVBLOCK 0x0008 // register callback/event on this lock
|
||
|
|
|
||
|
|
#define DLM_FLAGS_VBIO 0x0010 // rw value block
|
||
|
|
#define DLM_FLAGS_VBIV 0x0020 // invalidate value block
|
||
|
|
|
||
|
|
|
||
|
|
// *** from WDM.H (apps can't be expected to have this defined) ***
|
||
|
|
typedef ULONG NTSTATUS;
|
||
|
|
typedef struct _IO_STATUS_BLOCK {
|
||
|
|
union {
|
||
|
|
NTSTATUS Status;
|
||
|
|
PVOID Pointer;
|
||
|
|
};
|
||
|
|
ULONG_PTR Information;
|
||
|
|
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
|
||
|
|
typedef
|
||
|
|
VOID
|
||
|
|
(NTAPI *PIO_APC_ROUTINE) (
|
||
|
|
IN PVOID ApcContext,
|
||
|
|
IN PIO_STATUS_BLOCK IoStatusBlock,
|
||
|
|
IN ULONG Reserved);
|
||
|
|
// *****************************************************************
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
int InitializeDistributedLockManager(dlm_nodeid_t *nodeid);
|
||
|
|
|
||
|
|
int InitializeDistributedLock(dlm_lockid_t *lock, dlm_lockid_t parent, char *name, int sz);
|
||
|
|
|
||
|
|
int ConvertDistributedLock(dlm_lockid_t lock, dlm_mode_t mode);
|
||
|
|
|
||
|
|
int ConvertDistributedLockEx(dlm_lockid_t lock, dlm_mode_t mode, int flags, dlm_vblk_t vblk,
|
||
|
|
PIO_APC_ROUTINE callback, PVOID arg,
|
||
|
|
HANDLE event, PIO_STATUS_BLOCK iostatus);
|
||
|
|
|
||
|
|
int QueueDistributedLockEvent(dlm_lockid_t lock, PIO_APC_ROUTINE callback, PVOID arg,
|
||
|
|
HANDLE event, PIO_STATUS_BLOCK iostatus);
|
||
|
|
int DestroyDistributedLock(dlm_lockid_t lock);
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|