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dll: create, cleanup

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This commit is contained in:
Bill Zissimopoulos
2016-01-04 22:32:16 -08:00
parent 1b068054f4
commit bfb8c970af
3 changed files with 78 additions and 10 deletions
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49
inc/winfsp/winfsp.h
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@ -22,14 +22,17 @@
#include <winfsp/fsctl.h>
/*
* File System
* File Nodes
*/
typedef struct _FSP_FILE_SYSTEM FSP_FILE_SYSTEM;
typedef struct _FSP_FILE_NODE
{
/* public */
PVOID UserContext;
UINT64 AllocationSize;
UINT64 FileSize;
/* private */
CRITICAL_SECTION CriticalSection;
LONG OpenCount;
struct
{
BOOLEAN DeleteOnClose:1;
@ -46,6 +49,42 @@ typedef struct _FSP_FILE_NODE
ULONG SharedDelete;
} ShareAccess;
} FSP_FILE_NODE;
static inline
VOID FspFileNodeInit(FSP_FILE_NODE *FileNode)
{
memset(FileNode, 0, sizeof *FileNode);
InitializeCriticalSection(&FileNode->CriticalSection);
}
static inline
VOID FspFileNodeFini(FSP_FILE_NODE *FileNode)
{
DeleteCriticalSection(&FileNode->CriticalSection);
}
static inline
VOID FspFileNodeLock(FSP_FILE_NODE *FileNode)
{
EnterCriticalSection(&FileNode->CriticalSection);
}
static inline
VOID FspFileNodeUnlock(FSP_FILE_NODE *FileNode)
{
LeaveCriticalSection(&FileNode->CriticalSection);
}
static inline
VOID FspFileNodeOpen(FSP_FILE_NODE *FileNode)
{
InterlockedIncrement(&FileNode->OpenCount);
}
static inline
LONG FspFileNodeClose(FSP_FILE_NODE *FileNode)
{
return InterlockedDecrement(&FileNode->OpenCount);
}
/*
* File System
*/
typedef struct _FSP_FILE_SYSTEM FSP_FILE_SYSTEM;
typedef VOID FSP_FILE_SYSTEM_DISPATCHER(FSP_FILE_SYSTEM *, FSP_FSCTL_TRANSACT_REQ *);
typedef NTSTATUS FSP_FILE_SYSTEM_OPERATION(FSP_FILE_SYSTEM *, FSP_FSCTL_TRANSACT_REQ *);
typedef struct _FSP_FILE_SYSTEM_INTERFACE
@ -59,9 +98,9 @@ typedef struct _FSP_FILE_SYSTEM_INTERFACE
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE **PFileNode);
NTSTATUS (*Overwrite)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, BOOLEAN ReplaceFileAttributes, FSP_FILE_NODE *FileNode);
NTSTATUS (*Cleanup)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE *FileNode);
NTSTATUS (*Close)(FSP_FILE_SYSTEM *FileSystem,
VOID (*Cleanup)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE *FileNode, BOOLEAN Delete);
VOID (*Close)(FSP_FILE_SYSTEM *FileSystem,
FSP_FSCTL_TRANSACT_REQ *Request, FSP_FILE_NODE *FileNode);
} FSP_FILE_SYSTEM_INTERFACE;
typedef struct _FSP_FILE_SYSTEM