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9327ec51d1
- stream_socket services
the smb, ldap and rpc service which sets up a srtam socket end then
waits for connections
and
- task services
which this you can create a seperate task that do something
(this is also going through the process_model subsystem
so with -M standard a new process for this created
with -M thread a new thread ...
I'll add datagram services later when we whave support for datagram sockets in lib/socket/
see the next commit as an example for service_task's
metze
(This used to be commit d5fa02746c
)
145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
/*
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Unix SMB/CIFS implementation.
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process model: process (1 process handles all client connections)
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Copyright (C) Andrew Tridgell 2003
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Copyright (C) James J Myers 2003 <myersjj@samba.org>
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Copyright (C) Stefan (metze) Metzmacher 2004
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "events.h"
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#include "dlinklist.h"
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#include "smb_server/smb_server.h"
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#include "process_model.h"
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/*
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called when the process model is selected
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*/
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static void single_model_init(struct server_context *server)
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{
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}
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static void single_model_exit(struct server_context *server, const char *reason)
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{
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DEBUG(1,("single_exit_server: reason[%s]\n",reason));
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talloc_free(server);
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exit(0);
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}
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/*
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called when a listening socket becomes readable
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*/
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static void single_accept_connection(struct event_context *ev, struct fd_event *srv_fde,
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struct timeval t, uint16_t flags)
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{
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NTSTATUS status;
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struct socket_context *sock;
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struct server_stream_socket *stream_socket = srv_fde->private;
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struct server_connection *conn;
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/* accept an incoming connection. */
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status = socket_accept(stream_socket->socket, &sock);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0,("accept_connection_single: accept: %s\n",
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nt_errstr(status)));
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return;
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}
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conn = server_setup_connection(ev, stream_socket, sock, t, socket_get_fd(sock));
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if (!conn) {
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DEBUG(10,("server_setup_connection failed\n"));
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return;
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}
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talloc_steal(conn, sock);
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/* return to event handling */
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return;
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}
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/* called when a SMB connection goes down */
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static void single_terminate_connection(struct server_connection *conn, const char *reason)
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{
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DEBUG(2,("single_terminate_connection: reason[%s]\n",reason));
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if (conn) {
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talloc_free(conn);
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}
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}
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/*
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called to create a new event context for a new task
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*/
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static void single_create_task(struct server_task *task)
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{
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task->task.id = (uint32_t)task;
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task->event.ctx = task->service->server->event.ctx;
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/* setup to receive internal messages on this connection */
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task->messaging.ctx = messaging_init(task, task->task.id, task->event.ctx);
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if (!task->messaging.ctx) {
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server_terminate_task(task, "messaging_init() failed");
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return;
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}
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task->task.ops->task_init(task);
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return;
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}
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/*
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called to exit from a server_task
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*/
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static void single_terminate_task(struct server_task *task, const char *reason)
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{
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DEBUG(1,("single_exit_server: reason[%s]\n",reason));
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talloc_free(task);
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return;
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}
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static const struct model_ops single_ops = {
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.name = "single",
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.model_init = single_model_init,
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.model_exit = single_model_exit,
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.accept_connection = single_accept_connection,
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.terminate_connection = single_terminate_connection,
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.create_task = single_create_task,
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.terminate_task = single_terminate_task
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};
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/*
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initialise the single process model, registering ourselves with the process model subsystem
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*/
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NTSTATUS process_model_single_init(void)
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{
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NTSTATUS ret;
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/* register ourselves with the PROCESS_MODEL subsystem. */
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ret = register_process_model(&single_ops);
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if (!NT_STATUS_IS_OK(ret)) {
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DEBUG(0,("Failed to register process_model 'single'!\n"));
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return ret;
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}
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return ret;
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}
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