Make dskattr async.

Jeremy.

1 files changed, 102 insertions, 38 deletions

diff --git a/source3/libsmb/clifile.c b/source3/libsmb/clifile.c
index c98346e3b3..3d1da5f412 100644
--- a/source3/libsmb/clifile.c
+++ b/source3/libsmb/clifile.c
@@ -2163,57 +2163,120 @@ NTSTATUS cli_chkpath(struct cli_state *cli, const char *path)
 	return status;
 }
 
-#if 0
-bool cli_chkpath(struct cli_state *cli, const char *path)
+/****************************************************************************
+ Query disk space.
+****************************************************************************/
+
+static void cli_dskattr_done(struct tevent_req *subreq);
+
+struct cli_dskattr_state {
+	int bsize;
+	int total;
+	int avail;
+};
+
+struct tevent_req *cli_dskattr_send(TALLOC_CTX *mem_ctx,
+				  struct event_context *ev,
+				  struct cli_state *cli)
 {
-	char *path2 = NULL;
-	char *p;
-	TALLOC_CTX *frame = talloc_stackframe();
+	struct tevent_req *req = NULL, *subreq = NULL;
+	struct cli_dskattr_state *state = NULL;
+	uint8_t additional_flags = 0;
 
-	path2 = talloc_strdup(frame, path);
-	if (!path2) {
-		TALLOC_FREE(frame);
-		return false;
+	req = tevent_req_create(mem_ctx, &state, struct cli_dskattr_state);
+	if (req == NULL) {
+		return NULL;
 	}
-	trim_char(path2,'\0','\\');
-	if (!*path2) {
-		path2 = talloc_strdup(frame, "\\");
-		if (!path2) {
-			TALLOC_FREE(frame);
-			return false;
-		}
+
+	subreq = cli_smb_send(state, ev, cli, SMBdskattr, additional_flags,
+			      0, NULL, 0, NULL);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
 	}
+	tevent_req_set_callback(subreq, cli_dskattr_done, req);
+	return req;
+}
 
-	memset(cli->outbuf,'\0',smb_size);
-	cli_set_message(cli->outbuf,0,0,True);
-	SCVAL(cli->outbuf,smb_com,SMBcheckpath);
-	SSVAL(cli->outbuf,smb_tid,cli->cnum);
-	cli_setup_packet(cli);
-	p = smb_buf(cli->outbuf);
-	*p++ = 4;
-	p += clistr_push(cli, p, path2,
-			cli->bufsize - PTR_DIFF(p,cli->outbuf), STR_TERMINATE);
+static void cli_dskattr_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct cli_dskattr_state *state = tevent_req_data(
+		req, struct cli_dskattr_state);
+	uint8_t wct;
+	uint16_t *vwv = NULL;
+	NTSTATUS status;
 
-	cli_setup_bcc(cli, p);
+	status = cli_smb_recv(subreq, 4, &wct, &vwv, NULL, NULL);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+	state->bsize = SVAL(vwv+1, 0)*SVAL(vwv+2,0);
+	state->total = SVAL(vwv+0, 0);
+	state->avail = SVAL(vwv+3, 0);
+	TALLOC_FREE(subreq);
+	tevent_req_done(req);
+}
 
-	cli_send_smb(cli);
-	if (!cli_receive_smb(cli)) {
-		TALLOC_FREE(frame);
-		return False;
+NTSTATUS cli_dskattr_recv(struct tevent_req *req, int *bsize, int *total, int *avail)
+{
+	struct cli_dskattr_state *state = tevent_req_data(
+				req, struct cli_dskattr_state);
+	NTSTATUS status;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		return status;
 	}
+	*bsize = state->bsize;
+	*total = state->total;
+	*avail = state->avail;
+	return NT_STATUS_OK;
+}
 
-	TALLOC_FREE(frame);
+NTSTATUS cli_dskattr(struct cli_state *cli, int *bsize, int *total, int *avail)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct event_context *ev = NULL;
+	struct tevent_req *req = NULL;
+	NTSTATUS status = NT_STATUS_OK;
 
-	if (cli_is_error(cli)) return False;
+	if (cli_has_async_calls(cli)) {
+		/*
+		 * Can't use sync call while an async call is in flight
+		 */
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto fail;
+	}
 
-	return True;
-}
-#endif
+	ev = event_context_init(frame);
+	if (ev == NULL) {
+		status = NT_STATUS_NO_MEMORY;
+		goto fail;
+	}
 
-/****************************************************************************
- Query disk space.
-****************************************************************************/
+	req = cli_dskattr_send(frame, ev, cli);
+	if (req == NULL) {
+		status = NT_STATUS_NO_MEMORY;
+		goto fail;
+	}
+
+	if (!tevent_req_poll(req, ev)) {
+		status = map_nt_error_from_unix(errno);
+		goto fail;
+	}
 
+	status = cli_dskattr_recv(req, bsize, total, avail);
+
+ fail:
+	TALLOC_FREE(frame);
+	if (!NT_STATUS_IS_OK(status)) {
+		cli_set_error(cli, status);
+	}
+	return status;
+}
+
+#if 0
 bool cli_dskattr(struct cli_state *cli, int *bsize, int *total, int *avail)
 {
 	memset(cli->outbuf,'\0',smb_size);
@@ -2233,6 +2296,7 @@ bool cli_dskattr(struct cli_state *cli, int *bsize, int *total, int *avail)
 
 	return True;
 }
+#endif
 
 /****************************************************************************
  Create and open a temporary file.