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ref counting for nfs41_open_state

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This commit is contained in:
Olga Kornievskaia 2010-10-27 16:18:12 -04:00
parent ae4c67c21e
commit 006bdfa47a
10 changed files with 78 additions and 5 deletions
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41
daemon/open.c
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@ -61,6 +61,7 @@ static int create_open_state(
"%u", open_owner_id);
state->owner.owner_len = (uint32_t)strlen(
(const char*)state->owner.owner);
state->ref_count = 1;
*state_out = state;
status = NO_ERROR;
@ -73,13 +74,33 @@ out_free:
}
static void free_open_state(
IN nfs41_session *session,
IN nfs41_open_state *state)
{
free(state);
}
void nfs41_open_state_ref(
IN nfs41_open_state *state)
{
const LONG count = InterlockedIncrement(&state->ref_count);
dprintf(2, "nfs41_open_state_ref(%s) count %d\n",
state->path.path, count);
}
void nfs41_open_state_deref(
IN nfs41_open_state *state)
{
const LONG count = InterlockedDecrement(&state->ref_count);
dprintf(2, "nfs41_open_state_deref(%s) count %d\n",
state->path.path, count);
if (count == 0)
free_open_state(state);
}
/* NFS41_OPEN */
static int parse_open(unsigned char *buffer, uint32_t length, nfs41_upcall *upcall)
{
@ -398,7 +419,7 @@ static int handle_open(nfs41_upcall *upcall)
out:
return status;
out_free_state:
free(state);
nfs41_open_state_deref(state);
goto out;
}
@ -461,7 +482,7 @@ static void cancel_open(IN nfs41_upcall *upcall)
nfs_error_string(status));
}
free_open_state(state->session, state);
nfs41_open_state_deref(state);
out:
status = nfs_to_windows_error(status, ERROR_INTERNAL_ERROR);
dprintf(1, "<-- cancel_open() returning %d\n", status);
@ -531,13 +552,20 @@ static int handle_close(nfs41_upcall *upcall)
}
}
free_open_state(state->session, state);
if (status || !rm_status)
return status;
else
return rm_status;
}
static void cleanup_close(nfs41_upcall *upcall)
{
close_upcall_args *args = &upcall->args.close;
/* release the initial reference from create_open_state() */
nfs41_open_state_deref(args->state);
}
const nfs41_upcall_op nfs41_op_open = {
parse_open,
@ -547,5 +575,8 @@ const nfs41_upcall_op nfs41_op_open = {
};
const nfs41_upcall_op nfs41_op_close = {
parse_close,
handle_close
handle_close,
NULL,
NULL,
cleanup_close
};