Revert "Add basic infrastructure for general async requests"

This reverts commit ae254cb61f4b9331755848c47ebc34e90dd80390.
(cherry picked from commit 030bef7f22f7a73466204b7860f397dbca9f2ab0)
(This used to be commit 575b829b390f7f07138305adc2988918eda95ce1)

4 files changed, 1 insertions, 159 deletions

diff --git a/source3/Makefile.in b/source3/Makefile.in
index bee8cf0738..c91f544369 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -323,7 +323,7 @@ LIB_WITHOUT_PROTO_OBJ = $(LIBSAMBAUTIL_OBJ) \
 	lib/messages.o librpc/gen_ndr/ndr_messaging.o lib/messages_local.o \
 	lib/messages_ctdbd.o lib/packet.o lib/ctdbd_conn.o lib/talloc_stack.o \
 	lib/interfaces.o lib/rbtree.o lib/memcache.o \
-	lib/util_transfer_file.o lib/async_req.o
+	lib/util_transfer_file.o
 
 LIB_WITH_PROTO_OBJ = $(VERSION_OBJ) lib/charcnv.o lib/debug.o lib/fault.o \
 	  lib/interface.o lib/md4.o \
diff --git a/source3/include/async_req.h b/source3/include/async_req.h
deleted file mode 100644
index 6df53602b2..0000000000
--- a/source3/include/async_req.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
-   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/>.
-*/
-
-#ifndef __ASYNC_REQ_H__
-#define __ASYNC_REQ_H__
-
-#include "includes.h"
-
-/*
- * An async request moves between the following 4 states.
- */
-enum async_req_state {
-	ASYNC_REQ_INIT,		/* we are creating the request */
-	ASYNC_REQ_IN_PROGRESS,	/* we are waiting the request to complete */
-	ASYNC_REQ_DONE,		/* the request is finished */
-	ASYNC_REQ_ERROR };	/* an error has occured */
-
-struct async_req {
-	/* the external state - will be queried by the caller */
-	enum async_req_state state;
-
-	/* a private pointer for use by the async function implementation */
-	void *private_data;
-
-	/* print yourself, for debugging purposes */
-	char *(*print)(TALLOC_CTX *mem_ctx, struct async_req *);
-
-	/* status code when finished */
-	NTSTATUS status;
-
-	/* the event context we are using */
-	struct event_context *event_ctx;
-
-	/* information on what to do on completion */
-	struct {
-		void (*fn)(struct async_req *);
-		void *priv;
-	} async;
-};
-
-/*
- * Print an async_req structure for debugging purposes
- */
-char *async_req_print(TALLOC_CTX *mem_ctx, struct async_req *req);
-
-/*
- * Create an async request
- */
-struct async_req *async_req_new(TALLOC_CTX *mem_ctx, struct event_context *ev);
-
-/*
- * An async request has successfully finished, invoke the callback
- */
-void async_req_done(struct async_req *req);
-
-/*
- * An async request has seen an error, invoke the callback
- */
-void async_req_error(struct async_req *req, NTSTATUS status);
-
-/*
- * Convenience helper to easily check alloc failure within a callback.
- *
- * Call pattern would be
- * p = talloc(mem_ctx, bla);
- * if (async_req_nomem(p, req)) {
- *	return;
- * }
- *
- */
-bool async_req_nomem(const void *p, struct async_req *req);
-
-#endif
diff --git a/source3/include/includes.h b/source3/include/includes.h
index 8b94d7aed2..a2c3a0c466 100644
--- a/source3/include/includes.h
+++ b/source3/include/includes.h
@@ -723,7 +723,6 @@ typedef char fstring[FSTRING_LEN];
 #include "ctdbd_conn.h"
 #include "talloc_stack.h"
 #include "memcache.h"
-#include "async_req.h"
 
 /* used in net.c */
 struct functable {
diff --git a/source3/lib/async_req.c b/source3/lib/async_req.c
deleted file mode 100644
index 01154ca436..0000000000
--- a/source3/lib/async_req.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
-   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;
-}