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 /* Handle common command line options for ctdb test progs
  29  */
  30
  31 static struct {
  32         const char *socketname;
  33         const char *debuglevel;
  34         int torture;
  35         const char *events;
  36 } ctdb_cmdline = {
  37         .torture = 0,
  38         .debuglevel = "ERR",
  39 };
  40
  41 enum {OPT_EVENTSYSTEM=1};
  42
  43 static void ctdb_cmdline_callback(poptContext con,
  44                                   enum poptCallbackReason reason,
  45                                   const struct poptOption *opt,
  46                                   const char *arg, const void *data)
  47 {
  48         switch (opt->val) {
  49         case OPT_EVENTSYSTEM:
  50                 event_set_default_backend(arg);
  51                 break;
  52         }
  53 }
  54
  55
  56 struct poptOption popt_ctdb_cmdline[] = {
  57         { NULL, 0, POPT_ARG_CALLBACK, (void *)ctdb_cmdline_callback },
  58         { "socket", 0, POPT_ARG_STRING, &ctdb_cmdline.socketname, 0, "local socket name", "filename" },
  59         { "debug", 'd', POPT_ARG_STRING, &ctdb_cmdline.debuglevel, 0, "debug level"},
  60         { "torture", 0, POPT_ARG_NONE, &ctdb_cmdline.torture, 0, "enable nastiness in library", NULL },
  61         { "events", 0, POPT_ARG_STRING, NULL, OPT_EVENTSYSTEM, "event system", NULL },
  62         { NULL }
  63 };
  64
  65
  66 /*
  67   startup daemon side of ctdb according to command line options
  68  */
  69 struct ctdb_context *ctdb_cmdline_init(struct event_context *ev)
  70 {
  71         struct ctdb_context *ctdb;
  72         int ret;
  73
  74         /* initialise ctdb */
  75         ctdb = ctdb_init(ev);
  76         if (ctdb == NULL) {
  77                 printf("Failed to init ctdb\n");
  78                 exit(1);
  79         }
  80
  81         if (ctdb_cmdline.torture) {
  82                 ctdb_set_flags(ctdb, CTDB_FLAG_TORTURE);
  83         }
  84
  85         /* command line specified a socket name */
  86         if (ctdb_cmdline.socketname != NULL) {
  87                 setenv("CTDB_SOCKET", ctdb_cmdline.socketname, 1);
  88                 ret = ctdb_set_socketname(ctdb, ctdb_cmdline.socketname);
  89                 if (ret == -1) {
  90                         printf("ctdb_set_socketname failed - %s\n",
  91                                                     ctdb_errstr(ctdb));
  92                         exit(1);
  93                 }
  94         }
  95
  96         /* Set the debug level */
  97         if (isalpha(ctdb_cmdline.debuglevel[0]) || ctdb_cmdline.debuglevel[0] == '-') {
  98                 LogLevel = get_debug_by_desc(ctdb_cmdline.debuglevel);
  99         } else {
 100                 LogLevel = strtol(ctdb_cmdline.debuglevel, NULL, 0);
 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         ret = ctdb_socket_connect(ctdb);
 148         if (ret != 0) {
 149                 fprintf(stderr, __location__ " Failed to connect to daemon\n");
 150                 talloc_free(ctdb);
 151                 return NULL;
 152         }
 153
 154         /* get our pnn */
 155         ctdb->pnn = ctdb_ctrl_getpnn(ctdb, req_timeout, CTDB_CURRENT_NODE);
 156         if (ctdb->pnn == (uint32_t)-1) {
 157                 DEBUG(DEBUG_CRIT,(__location__ " Failed to get ctdb pnn\n"));
 158                 talloc_free(ctdb);
 159                 return NULL;
 160         }
 161
 162         return ctdb;
 163 }