s3:ctdb library: fix the build against older ctdb versions
[Samba/gebeck_regimport.git] / source4 / smbd / service_task.c
blob4531c3aebca5561be7302cf8a3b9be14e7145926
1 /*
2 Unix SMB/CIFS implementation.
4 helper functions for task based servers (nbtd, winbind etc)
6 Copyright (C) Andrew Tridgell 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "includes.h"
23 #include "process_model.h"
24 #include "lib/messaging/irpc.h"
25 #include "param/param.h"
26 #include "librpc/gen_ndr/ndr_irpc_c.h"
29 terminate a task service
31 void task_server_terminate(struct task_server *task, const char *reason, bool fatal)
33 struct tevent_context *event_ctx = task->event_ctx;
34 const struct model_ops *model_ops = task->model_ops;
35 DEBUG(0,("task_server_terminate: [%s]\n", reason));
37 if (fatal) {
38 struct dcerpc_binding_handle *irpc_handle;
39 struct samba_terminate r;
41 irpc_handle = irpc_binding_handle_by_name(task, task->msg_ctx,
42 "samba", &ndr_table_irpc);
43 if (irpc_handle != NULL) {
44 r.in.reason = reason;
45 dcerpc_samba_terminate_r(irpc_handle, task, &r);
49 model_ops->terminate(event_ctx, task->lp_ctx, reason);
51 /* don't free this above, it might contain the 'reason' being printed */
52 talloc_free(task);
55 /* used for the callback from the process model code */
56 struct task_state {
57 void (*task_init)(struct task_server *);
58 const struct model_ops *model_ops;
63 called by the process model code when the new task starts up. This then calls
64 the server specific startup code
66 static void task_server_callback(struct tevent_context *event_ctx,
67 struct loadparm_context *lp_ctx,
68 struct server_id server_id, void *private_data)
70 struct task_state *state = talloc_get_type(private_data, struct task_state);
71 struct task_server *task;
73 task = talloc(event_ctx, struct task_server);
74 if (task == NULL) return;
76 task->event_ctx = event_ctx;
77 task->model_ops = state->model_ops;
78 task->server_id = server_id;
79 task->lp_ctx = lp_ctx;
81 task->msg_ctx = imessaging_init(task,
82 task->lp_ctx,
83 task->server_id,
84 task->event_ctx, false);
85 if (!task->msg_ctx) {
86 task_server_terminate(task, "imessaging_init() failed", true);
87 return;
90 state->task_init(task);
94 startup a task based server
96 NTSTATUS task_server_startup(struct tevent_context *event_ctx,
97 struct loadparm_context *lp_ctx,
98 const char *service_name,
99 const struct model_ops *model_ops,
100 void (*task_init)(struct task_server *))
102 struct task_state *state;
104 state = talloc(event_ctx, struct task_state);
105 NT_STATUS_HAVE_NO_MEMORY(state);
107 state->task_init = task_init;
108 state->model_ops = model_ops;
110 model_ops->new_task(event_ctx, lp_ctx, service_name, task_server_callback, state);
112 return NT_STATUS_OK;
116 setup a task title
118 void task_server_set_title(struct task_server *task, const char *title)
120 task->model_ops->set_title(task->event_ctx, title);