2 * Samba Unix/Linux SMB client library
3 * Interface to the g_lock facility
4 * Copyright (C) Volker Lendecke 2009
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "lib/util/server_id.h"
25 #include "lib/util/util_tdb.h"
27 static bool net_g_lock_init(TALLOC_CTX
*mem_ctx
,
28 struct tevent_context
**pev
,
29 struct messaging_context
**pmsg
,
30 struct g_lock_ctx
**pg_ctx
)
32 struct tevent_context
*ev
= NULL
;
33 struct messaging_context
*msg
= NULL
;
34 struct g_lock_ctx
*g_ctx
= NULL
;
36 ev
= samba_tevent_context_init(mem_ctx
);
38 d_fprintf(stderr
, "ERROR: could not init event context\n");
41 msg
= messaging_init(mem_ctx
, ev
);
43 d_fprintf(stderr
, "ERROR: could not init messaging context\n");
46 g_ctx
= g_lock_ctx_init(mem_ctx
, msg
);
48 d_fprintf(stderr
, "ERROR: could not init g_lock context\n");
63 static int net_g_lock_do(struct net_context
*c
, int argc
, const char **argv
)
65 struct g_lock_ctx
*ctx
= NULL
;
67 const char *cmd
= NULL
;
73 d_printf("Usage: net g_lock do <lockname> <timeout> "
77 key
= string_term_tdb_data(argv
[0]);
78 timeout
= atoi(argv
[1]);
81 ctx
= g_lock_ctx_init(c
, c
->msg_ctx
);
83 d_fprintf(stderr
, _("g_lock_ctx_init failed\n"));
90 timeval_set(timeout
/ 1000, timeout
% 1000));
91 if (!NT_STATUS_IS_OK(status
)) {
93 _("g_lock_lock failed: %s\n"),
100 g_lock_unlock(ctx
, key
);
103 d_fprintf(stderr
, "ERROR: system() returned %s\n",
107 d_fprintf(stderr
, "command returned %d\n", result
);
114 static void net_g_lock_dump_fn(struct server_id exclusive
,
116 const struct server_id
*shared
,
121 struct server_id_buf idbuf
;
123 if (exclusive
.pid
!= 0) {
124 d_printf("%s: WRITE\n",
125 server_id_str_buf(exclusive
, &idbuf
));
128 for (i
=0; i
<num_shared
; i
++) {
129 d_printf("%s: READ\n",
130 server_id_str_buf(shared
[i
], &idbuf
));
133 dump_data_file(data
, datalen
, true, stdout
);
136 static int net_g_lock_dump(struct net_context
*c
, int argc
, const char **argv
)
138 struct tevent_context
*ev
= NULL
;
139 struct messaging_context
*msg
= NULL
;
140 struct g_lock_ctx
*g_ctx
= NULL
;
144 d_printf("Usage: net g_lock dump <lockname>\n");
148 if (!net_g_lock_init(talloc_tos(), &ev
, &msg
, &g_ctx
)) {
152 (void)g_lock_dump(g_ctx
, string_term_tdb_data(argv
[0]),
153 net_g_lock_dump_fn
, NULL
);
163 static int net_g_lock_dumpall_fn(TDB_DATA key
, void *private_data
)
165 struct g_lock_ctx
*g_ctx
= talloc_get_type_abort(
166 private_data
, struct g_lock_ctx
);
168 dump_data_file(key
.dptr
, key
.dsize
, true, stdout
);
169 g_lock_dump(g_ctx
, key
, net_g_lock_dump_fn
, NULL
);
175 static int net_g_lock_dumpall(
176 struct net_context
*c
, int argc
, const char **argv
)
178 struct tevent_context
*ev
= NULL
;
179 struct messaging_context
*msg
= NULL
;
180 struct g_lock_ctx
*g_ctx
= NULL
;
184 d_printf("Usage: net g_lock locks\n");
188 if (!net_g_lock_init(talloc_tos(), &ev
, &msg
, &g_ctx
)) {
192 ret
= g_lock_locks(g_ctx
, net_g_lock_dumpall_fn
, g_ctx
);
197 return ret
< 0 ? -1 : ret
;
200 static int net_g_lock_locks_fn(TDB_DATA key
, void *private_data
)
202 dump_data_file(key
.dptr
, key
.dsize
, true, stdout
);
206 static int net_g_lock_locks(struct net_context
*c
, int argc
, const char **argv
)
208 struct tevent_context
*ev
= NULL
;
209 struct messaging_context
*msg
= NULL
;
210 struct g_lock_ctx
*g_ctx
= NULL
;
214 d_printf("Usage: net g_lock locks\n");
218 if (!net_g_lock_init(talloc_tos(), &ev
, &msg
, &g_ctx
)) {
222 ret
= g_lock_locks(g_ctx
, net_g_lock_locks_fn
, NULL
);
227 return ret
< 0 ? -1 : ret
;
230 int net_g_lock(struct net_context
*c
, int argc
, const char **argv
)
232 struct functable func
[] = {
237 N_("Execute a shell command under a lock"),
238 N_("net g_lock do <lock name> <timeout> <command>\n")
244 N_("List all locknames"),
245 N_("net g_lock locks\n")
251 N_("Dump a g_lock locking table"),
252 N_("net g_lock dump <lock name>\n")
258 N_("Dump all g_lock locking tables"),
259 N_("net g_lock dumpall\n")
261 {NULL
, NULL
, 0, NULL
, NULL
}
264 return net_run_function(c
, argc
, argv
, "net g_lock", func
);