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2d21fe079f
when a child task exits we were firing a destructor on any inherited messaging contexts, which could trigger a removal of the parents message socket and messaging database entry. This adds a new auto_remove flag to imessaging_init(), and exposes the cleanup code for use by the stream service. Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org> Autobuild-User: Andrew Tridgell <tridge@samba.org> Autobuild-Date: Fri Jul 22 08:09:06 CEST 2011 on sn-devel-104
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/*
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Unix SMB/CIFS implementation.
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helper functions for task based servers (nbtd, winbind etc)
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Copyright (C) Andrew Tridgell 2005
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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 3 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, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "process_model.h"
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#include "lib/messaging/irpc.h"
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#include "param/param.h"
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#include "librpc/gen_ndr/ndr_irpc_c.h"
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/*
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terminate a task service
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*/
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void task_server_terminate(struct task_server *task, const char *reason, bool fatal)
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{
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struct tevent_context *event_ctx = task->event_ctx;
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const struct model_ops *model_ops = task->model_ops;
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DEBUG(0,("task_server_terminate: [%s]\n", reason));
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if (fatal) {
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struct dcerpc_binding_handle *irpc_handle;
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struct samba_terminate r;
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irpc_handle = irpc_binding_handle_by_name(task, task->msg_ctx,
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"samba", &ndr_table_irpc);
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if (irpc_handle != NULL) {
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r.in.reason = reason;
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dcerpc_samba_terminate_r(irpc_handle, task, &r);
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}
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}
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model_ops->terminate(event_ctx, task->lp_ctx, reason);
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/* don't free this above, it might contain the 'reason' being printed */
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talloc_free(task);
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}
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/* used for the callback from the process model code */
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struct task_state {
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void (*task_init)(struct task_server *);
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const struct model_ops *model_ops;
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};
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/*
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called by the process model code when the new task starts up. This then calls
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the server specific startup code
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*/
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static void task_server_callback(struct tevent_context *event_ctx,
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struct loadparm_context *lp_ctx,
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struct server_id server_id, void *private_data)
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{
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struct task_state *state = talloc_get_type(private_data, struct task_state);
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struct task_server *task;
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task = talloc(event_ctx, struct task_server);
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if (task == NULL) return;
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task->event_ctx = event_ctx;
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task->model_ops = state->model_ops;
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task->server_id = server_id;
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task->lp_ctx = lp_ctx;
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task->msg_ctx = imessaging_init(task,
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lpcfg_imessaging_path(task, task->lp_ctx),
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task->server_id,
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task->event_ctx, false);
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if (!task->msg_ctx) {
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task_server_terminate(task, "imessaging_init() failed", true);
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return;
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}
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state->task_init(task);
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}
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/*
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startup a task based server
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*/
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NTSTATUS task_server_startup(struct tevent_context *event_ctx,
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struct loadparm_context *lp_ctx,
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const char *service_name,
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const struct model_ops *model_ops,
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void (*task_init)(struct task_server *))
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{
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struct task_state *state;
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state = talloc(event_ctx, struct task_state);
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NT_STATUS_HAVE_NO_MEMORY(state);
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state->task_init = task_init;
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state->model_ops = model_ops;
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model_ops->new_task(event_ctx, lp_ctx, service_name, task_server_callback, state);
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return NT_STATUS_OK;
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}
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/*
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setup a task title
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*/
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void task_server_set_title(struct task_server *task, const char *title)
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{
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task->model_ops->set_title(task->event_ctx, title);
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}
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