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NLM add helper functions to send async calls for the NLM functions

libnfs-4.0.0-vitalif
Ronnie Sahlberg 2012-03-10 22:50:10 +11:00
parent 04ba56c460
commit a171d4dada
2 changed files with 131 additions and 0 deletions
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56
include/libnfs-raw.h
View File

@ -860,3 +860,59 @@ int rpc_nlm4_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);
struct NLM4_TESTargs;
int rpc_nlm4_test_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_TESTargs *args, void *private_data);
/*
* Call NLM/LOCK
* Call the LOCK procedure for the NLM protocol
*
* Function returns
* 0 : The call was initiated. The callback will be invoked when the call completes.
* <0 : An error occured when trying to set up the call. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* RPC_STATUS_SUCCESS : We got a successful response from the nlm daemon.
* data is NLM4_LOCKres
* RPC_STATUS_ERROR : An error occured when trying to contact the nlm daemon.
* data is the error string.
* RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
* data is NULL.
*/
struct NLM4_LOCKargs;
int rpc_nlm4_lock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_LOCKargs *args, void *private_data);
/*
* Call NLM/CANCEL
* Call the CANCEL procedure for the NLM protocol
*
* Function returns
* 0 : The call was initiated. The callback will be invoked when the call completes.
* <0 : An error occured when trying to set up the call. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* RPC_STATUS_SUCCESS : We got a successful response from the nlm daemon.
* data is NLM4_CANCres
* RPC_STATUS_ERROR : An error occured when trying to contact the nlm daemon.
* data is the error string.
* RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
* data is NULL.
*/
struct NLM4_CANCargs;
int rpc_nlm4_cancel_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_CANCargs *args, void *private_data);
/*
* Call NLM/UNLOCK
* Call the UNLOCK procedure for the NLM protocol
*
* Function returns
* 0 : The call was initiated. The callback will be invoked when the call completes.
* <0 : An error occured when trying to set up the call. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* RPC_STATUS_SUCCESS : We got a successful response from the nlm daemon.
* data is NLM4_UNLOCKres
* RPC_STATUS_ERROR : An error occured when trying to contact the nlm daemon.
* data is the error string.
* RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
* data is NULL.
*/
struct NLM4_UNLOCKargs;
int rpc_nlm4_unlock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_UNLOCKargs *args, void *private_data);

75
nlm/nlm.c
View File

@ -72,6 +72,81 @@ int rpc_nlm4_test_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_TESTargs
return 0;
}
int rpc_nlm4_lock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_LOCKargs *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_LOCK, cb, private_data, (xdrproc_t)xdr_NLM4_LOCKres, sizeof(NLM4_LOCKres));
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/lock call");
return -1;
}
if (xdr_NLM4_LOCKargs(&pdu->xdr, args) == 0) {
rpc_set_error(rpc, "XDR error: Failed to encode NLM4_LOCKargs");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/lock call");
rpc_free_pdu(rpc, pdu);
return -1;
}
return 0;
}
int rpc_nlm4_cancel_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_CANCargs *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_CANCEL, cb, private_data, (xdrproc_t)xdr_NLM4_CANCres, sizeof(NLM4_CANCres));
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/cancel call");
return -1;
}
if (xdr_NLM4_CANCargs(&pdu->xdr, args) == 0) {
rpc_set_error(rpc, "XDR error: Failed to encode NLM4_CANCargs");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/cancel call");
rpc_free_pdu(rpc, pdu);
return -1;
}
return 0;
}
int rpc_nlm4_unlock_async(struct rpc_context *rpc, rpc_cb cb, struct NLM4_UNLOCKargs *args, void *private_data)
{
struct rpc_pdu *pdu;
pdu = rpc_allocate_pdu(rpc, NLM_PROGRAM, NLM_V4, NLM4_UNLOCK, cb, private_data, (xdrproc_t)xdr_NLM4_UNLOCKres, sizeof(NLM4_UNLOCKres));
if (pdu == NULL) {
rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nlm/unlock call");
return -1;
}
if (xdr_NLM4_UNLOCKargs(&pdu->xdr, args) == 0) {
rpc_set_error(rpc, "XDR error: Failed to encode NLM4_UNLOCKargs");
rpc_free_pdu(rpc, pdu);
return -2;
}
if (rpc_queue_pdu(rpc, pdu) != 0) {
rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nlm/unlock call");
rpc_free_pdu(rpc, pdu);
return -1;
}
return 0;
}
char *nlmstat4_to_str(int st)
{
enum nlmstat4 stat = st;