2 Unix SMB/CIFS implementation.
3 process model manager - main loop
4 Copyright (C) Andrew Tridgell 1992-2003
5 Copyright (C) James J Myers 2003 <myersjj@samba.org>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "smbd/process_model.h"
23 #include "param/param.h"
25 /* the list of currently registered process models */
26 static struct process_model {
27 struct model_ops *ops;
30 static int num_models;
34 return the operations structure for a named backend of the specified type
36 static struct process_model *process_model_byname(const char *name)
40 for (i=0;i<num_models;i++) {
41 if (strcmp(models[i].ops->name, name) == 0) {
51 setup the events for the chosen process model
53 _PUBLIC_ const struct model_ops *process_model_startup(const char *model)
55 struct process_model *m;
57 m = process_model_byname(model);
59 DEBUG(0,("Unknown process model '%s'\n", model));
63 if (!m->initialised) {
64 m->initialised = true;
72 register a process model.
74 The 'name' can be later used by other backends to find the operations
75 structure for this backend.
77 _PUBLIC_ NTSTATUS register_process_model(const void *_ops)
79 const struct model_ops *ops = _ops;
81 if (process_model_byname(ops->name) != NULL) {
82 /* its already registered! */
83 DEBUG(0,("PROCESS_MODEL '%s' already registered\n",
85 return NT_STATUS_OBJECT_NAME_COLLISION;
88 models = realloc_p(models, struct process_model, num_models+1);
90 smb_panic("out of memory in register_process_model");
93 models[num_models].ops = smb_xmemdup(ops, sizeof(*ops));
94 models[num_models].ops->name = smb_xstrdup(ops->name);
98 DEBUG(3,("PROCESS_MODEL '%s' registered\n",
104 _PUBLIC_ NTSTATUS process_model_init(struct loadparm_context *lp_ctx)
106 extern NTSTATUS process_model_thread_init(void);
107 extern NTSTATUS process_model_standard_init(void);
108 extern NTSTATUS process_model_prefork_init(void);
109 extern NTSTATUS process_model_onefork_init(void);
110 extern NTSTATUS process_model_single_init(void);
111 init_module_fn static_init[] = { STATIC_process_model_MODULES };
112 init_module_fn *shared_init = load_samba_modules(NULL, lp_ctx, "process_model");
114 run_init_functions(static_init);
115 run_init_functions(shared_init);
117 talloc_free(shared_init);
123 return the PROCESS_MODEL module version, and the size of some critical types
124 This can be used by process model modules to either detect compilation errors, or provide
125 multiple implementations for different smbd compilation options in one module
127 const struct process_model_critical_sizes *process_model_version(void)
129 static const struct process_model_critical_sizes critical_sizes = {
130 PROCESS_MODEL_VERSION,
131 sizeof(struct model_ops)
134 return &critical_sizes;