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b4ba669e48
the spoolss notify test needs to setup the process models before use Autobuild-User: Andrew Tridgell <tridge@samba.org> Autobuild-Date: Sat Oct 30 13:32:09 UTC 2010 on sn-devel-104
142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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process model manager - main loop
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Copyright (C) Andrew Tridgell 1992-2003
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Copyright (C) James J Myers 2003 <myersjj@samba.org>
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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 "smbd/process_model.h"
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#include "param/param.h"
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/* the list of currently registered process models */
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static struct process_model {
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struct model_ops *ops;
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bool initialised;
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} *models = NULL;
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static int num_models;
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/*
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return the operations structure for a named backend of the specified type
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*/
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static struct process_model *process_model_byname(const char *name)
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{
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int i;
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for (i=0;i<num_models;i++) {
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if (strcmp(models[i].ops->name, name) == 0) {
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return &models[i];
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}
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}
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return NULL;
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}
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/*
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setup the events for the chosen process model
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*/
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_PUBLIC_ const struct model_ops *process_model_startup(const char *model)
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{
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struct process_model *m;
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m = process_model_byname(model);
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if (m == NULL) {
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DEBUG(0,("Unknown process model '%s'\n", model));
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exit(-1);
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}
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if (!m->initialised) {
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m->initialised = true;
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m->ops->model_init();
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}
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return m->ops;
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}
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/*
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register a process model.
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The 'name' can be later used by other backends to find the operations
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structure for this backend.
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*/
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_PUBLIC_ NTSTATUS register_process_model(const void *_ops)
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{
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const struct model_ops *ops = _ops;
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if (process_model_byname(ops->name) != NULL) {
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/* its already registered! */
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DEBUG(0,("PROCESS_MODEL '%s' already registered\n",
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ops->name));
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return NT_STATUS_OBJECT_NAME_COLLISION;
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}
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models = realloc_p(models, struct process_model, num_models+1);
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if (!models) {
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smb_panic("out of memory in register_process_model");
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}
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models[num_models].ops = smb_xmemdup(ops, sizeof(*ops));
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models[num_models].ops->name = smb_xstrdup(ops->name);
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num_models++;
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DEBUG(3,("PROCESS_MODEL '%s' registered\n",
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ops->name));
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return NT_STATUS_OK;
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}
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_PUBLIC_ NTSTATUS process_model_init(struct loadparm_context *lp_ctx)
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{
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extern NTSTATUS process_model_thread_init(void);
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extern NTSTATUS process_model_standard_init(void);
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extern NTSTATUS process_model_prefork_init(void);
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extern NTSTATUS process_model_onefork_init(void);
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extern NTSTATUS process_model_single_init(void);
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static bool initialised;
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if (!initialised) {
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init_module_fn static_init[] = { STATIC_process_model_MODULES };
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init_module_fn *shared_init;
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initialised = true;
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shared_init = load_samba_modules(NULL, lp_ctx, "process_model");
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run_init_functions(static_init);
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run_init_functions(shared_init);
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talloc_free(shared_init);
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}
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return NT_STATUS_OK;
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}
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/*
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return the PROCESS_MODEL module version, and the size of some critical types
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This can be used by process model modules to either detect compilation errors, or provide
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multiple implementations for different smbd compilation options in one module
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*/
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const struct process_model_critical_sizes *process_model_version(void)
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{
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static const struct process_model_critical_sizes critical_sizes = {
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PROCESS_MODEL_VERSION,
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sizeof(struct model_ops)
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};
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return &critical_sizes;
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}
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