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authorVolker Lendecke <vl@samba.org>2008-02-28 13:55:53 +0100
committerVolker Lendecke <vl@samba.org>2008-03-06 13:28:23 +0100
commitf05bc403899e25c4299a23f09dde9bad5f4bcc66 (patch)
tree5d6ee1630c957fd5df6f25cb431e8b4d5acfaa54 /source3/lib
parent47d7767065df0da031cdcf70afa426daab83b8b7 (diff)
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Add basic infrastructure for general async requests
(This used to be commit 9f8b2a87ee8bba930b776dcfda608a5639f6d55a)
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/async_req.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/source3/lib/async_req.c b/source3/lib/async_req.c
new file mode 100644
index 0000000000..01154ca436
--- /dev/null
+++ b/source3/lib/async_req.c
@@ -0,0 +1,68 @@
+/*
+ Unix SMB/CIFS implementation.
+ Infrastructure for async requests
+ Copyright (C) Volker Lendecke 2008
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+char *async_req_print(TALLOC_CTX *mem_ctx, struct async_req *req)
+{
+ return talloc_asprintf(mem_ctx, "async_req: state=%d, status=%s, "
+ "priv=%s", req->state, nt_errstr(req->status),
+ talloc_get_name(req->private_data));
+}
+
+struct async_req *async_req_new(TALLOC_CTX *mem_ctx, struct event_context *ev)
+{
+ struct async_req *result;
+
+ result = TALLOC_ZERO_P(mem_ctx, struct async_req);
+ if (result == NULL) {
+ return NULL;
+ }
+ result->state = ASYNC_REQ_IN_PROGRESS;
+ result->event_ctx = ev;
+ result->print = async_req_print;
+ return result;
+}
+
+void async_req_done(struct async_req *req)
+{
+ req->status = NT_STATUS_OK;
+ req->state = ASYNC_REQ_DONE;
+ if (req->async.fn != NULL) {
+ req->async.fn(req);
+ }
+}
+
+void async_req_error(struct async_req *req, NTSTATUS status)
+{
+ req->status = status;
+ req->state = ASYNC_REQ_ERROR;
+ if (req->async.fn != NULL) {
+ req->async.fn(req);
+ }
+}
+
+bool async_req_nomem(const void *p, struct async_req *req)
+{
+ if (p != NULL) {
+ return false;
+ }
+ async_req_error(req, NT_STATUS_NO_MEMORY);
+ return true;
+}