ctdb/common/cmdline.c

   1 /*
   2    common commandline code to ctdb test tools
   3
   4    Copyright (C) Andrew Tridgell  2007
   5
   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.
  10
  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.
  15
  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/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "system/filesys.h"
  22 #include "popt.h"
  23 #include "../include/ctdb_client.h"
  24 #include "../include/ctdb_private.h"
  25 #include "../common/rb_tree.h"
  26 #include <ctype.h>
  27
  28 #include "internal/cmdline.h"
  29
  30 /* Handle common command line options for ctdb test progs
  31  */
  32
  33 static struct {
  34         const char *socketname;
  35         const char *debuglevel;
  36         int torture;
  37         const char *events;
  38 } ctdb_cmdline = {
  39         .torture = 0,
  40         .debuglevel = "NOTICE",
  41 };
  42
  43 enum {OPT_EVENTSYSTEM=1};
  44
  45 static void ctdb_cmdline_callback(poptContext con,
  46                                   enum poptCallbackReason reason,
  47                                   const struct poptOption *opt,
  48                                   const char *arg, const void *data)
  49 {
  50         switch (opt->val) {
  51         case OPT_EVENTSYSTEM:
  52                 event_set_default_backend(arg);
  53                 break;
  54         }
  55 }
  56
  57
  58 struct poptOption popt_ctdb_cmdline[] = {
  59         { NULL, 0, POPT_ARG_CALLBACK, (void *)ctdb_cmdline_callback },
  60         { "socket", 0, POPT_ARG_STRING, &ctdb_cmdline.socketname, 0, "local socket name", "filename" },
  61         { "debug", 'd', POPT_ARG_STRING, &ctdb_cmdline.debuglevel, 0, "debug level"},
  62         { "torture", 0, POPT_ARG_NONE, &ctdb_cmdline.torture, 0, "enable nastiness in library", NULL },
  63         { "events", 0, POPT_ARG_STRING, NULL, OPT_EVENTSYSTEM, "event system", NULL },
  64         { NULL }
  65 };
  66
  67
  68 /*
  69   startup daemon side of ctdb according to command line options
  70  */
  71 struct ctdb_context *ctdb_cmdline_init(struct event_context *ev)
  72 {
  73         struct ctdb_context *ctdb;
  74         int ret;
  75
  76         /* initialise ctdb */
  77         ctdb = ctdb_init(ev);
  78         if (ctdb == NULL) {
  79                 printf("Failed to init ctdb\n");
  80                 exit(1);
  81         }
  82
  83         if (ctdb_cmdline.torture) {
  84                 ctdb_set_flags(ctdb, CTDB_FLAG_TORTURE);
  85         }
  86
  87         /* command line specified a socket name */
  88         if (ctdb_cmdline.socketname != NULL) {
  89                 setenv("CTDB_SOCKET", ctdb_cmdline.socketname, 1);
  90                 ret = ctdb_set_socketname(ctdb, ctdb_cmdline.socketname);
  91                 if (ret == -1) {
  92                         printf("ctdb_set_socketname failed - %s\n",
  93                                                     ctdb_errstr(ctdb));
  94                         exit(1);
  95                 }
  96         }
  97
  98         /* Set the debug level */
  99         if (!parse_debug(ctdb_cmdline.debuglevel, &DEBUGLEVEL)) {
 100                 DEBUGLEVEL = DEBUG_NOTICE;
 101         }
 102
 103         /* set up the tree to store server ids */
 104         ctdb->server_ids = trbt_create(ctdb, 0);
 105
 106         return ctdb;
 107 }
 108
 109
 110 /*
 111   startup a client only ctdb context
 112  */
 113 struct ctdb_context *ctdb_cmdline_client(struct tevent_context *ev,
 114                                          struct timeval req_timeout)
 115 {
 116         struct ctdb_context *ctdb;
 117         char *socket_name;
 118         int ret;
 119
 120         /* initialise ctdb */
 121         ctdb = ctdb_init(ev);
 122         if (ctdb == NULL) {
 123                 fprintf(stderr, "Failed to init ctdb\n");
 124                 exit(1);
 125         }
 126
 127         /* tell ctdb the socket address */
 128         socket_name = getenv("CTDB_SOCKET");
 129         if (socket_name != NULL) {
 130                 ret = ctdb_set_socketname(ctdb, socket_name);
 131                 if (ret == -1) {
 132                         printf("ctdb_set_socketname failed - %s\n",
 133                                                     ctdb_errstr(ctdb));
 134                         exit(1);
 135                 }
 136         }
 137
 138         if (ctdb_cmdline.socketname != NULL) {
 139                 ret = ctdb_set_socketname(ctdb, ctdb_cmdline.socketname);
 140                 if (ret == -1) {
 141                         fprintf(stderr, "ctdb_set_socketname failed - %s\n",
 142                                         ctdb_errstr(ctdb));
 143                         exit(1);
 144                 }
 145         }
 146
 147         /* Set the debug level */
 148         if (!parse_debug(ctdb_cmdline.debuglevel, &DEBUGLEVEL)) {
 149                 DEBUGLEVEL = DEBUG_NOTICE;
 150         }
 151
 152         ret = ctdb_socket_connect(ctdb);
 153         if (ret != 0) {
 154                 fprintf(stderr, __location__ " Failed to connect to daemon\n");
 155                 talloc_free(ctdb);
 156                 return NULL;
 157         }
 158
 159         /* get our pnn */
 160         ctdb->pnn = ctdb_ctrl_getpnn(ctdb, req_timeout, CTDB_CURRENT_NODE);
 161         if (ctdb->pnn == (uint32_t)-1) {
 162                 DEBUG(DEBUG_CRIT,(__location__ " Failed to get ctdb pnn\n"));
 163                 talloc_free(ctdb);
 164                 return NULL;
 165         }
 166
 167         return ctdb;
 168 }