diff options
Diffstat (limited to 'source4/ntvfs/ntvfs.h')
| -rw-r--r-- | source4/ntvfs/ntvfs.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/source4/ntvfs/ntvfs.h b/source4/ntvfs/ntvfs.h index c9fe276f54..04e9b871c7 100644 --- a/source4/ntvfs/ntvfs.h +++ b/source4/ntvfs/ntvfs.h @@ -134,12 +134,45 @@ struct ntvfs_context { struct ntvfs_module_context *modules; }; + +/* a set of flags to control handling of request structures */ +#define NTVFS_ASYNC_STATE_ASYNC (1<<1) /* the backend will answer this one later */ +#define NTVFS_ASYNC_STATE_MAY_ASYNC (1<<2) /* the backend is allowed to answer async */ + +/* the ntvfs_async_state structure allows backend functions to + delay replying to requests. To use this, the front end must + set send_fn to a function to be called by the backend + when the reply is finally ready to be sent. The backend + must set status to the status it wants in the + reply. The backend must set the NTVFS_ASYNC_STATE_ASYNC + control_flag on the request to indicate that it wishes to + delay the reply + + If NTVFS_ASYNC_STATE_MAY_ASYNC is not set then the backend cannot + ask for a delayed reply for this request + + note that the private_data pointer is private to the layer which alloced this struct +*/ +struct ntvfs_async_state { + struct ntvfs_async_state *prev, *next; + /* the async handling infos */ + unsigned state; + void *private_data; + void (*send_fn)(struct smbsrv_request *); + NTSTATUS status; + + /* the passthru module's per session private data */ + struct ntvfs_module_context *ntvfs; +}; + /* this structure is used by backends to determine the size of some critical types */ struct ntvfs_critical_sizes { int interface_version; + int sizeof_ntvfs_critical_sizes; int sizeof_ntvfs_context; int sizeof_ntvfs_module_context; int sizeof_ntvfs_ops; + int sizeof_ntvfs_async_state; int sizeof_smbsrv_tcon; int sizeof_smbsrv_request; }; |