source: vendor/current/ctdb/common/cmdline.c

/* 
   common commandline code to ctdb test tools

   Copyright (C) Andrew Tridgell  2007

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, see <http://www.gnu.org/licenses/>.
*/

#include "replace.h"
#include "system/filesys.h"
#include "system/network.h"

#include <popt.h>
#include <talloc.h>
#include <tevent.h>
#include <ctype.h>

#include "lib/util/debug.h"
#include "ctdb_private.h"
#include "ctdb_client.h"

#include "common/rb_tree.h"
#include "common/common.h"
#include "common/logging.h"
#include "common/cmdline.h"



/* Handle common command line options for ctdb test progs
 */

static struct {
        const char *socketname;
        const char *debuglevel;
        int torture;
        const char *events;
} ctdb_cmdline = {
        .torture = 0,
        .debuglevel = "NOTICE",
};

enum {OPT_EVENTSYSTEM=1};

static void ctdb_cmdline_callback(poptContext con, 
                                  enum poptCallbackReason reason,
                                  const struct poptOption *opt,
                                  const char *arg, const void *data)
{
        switch (opt->val) {
        case OPT_EVENTSYSTEM:
                tevent_set_default_backend(arg);
                break;
        }
}


struct poptOption popt_ctdb_cmdline[] = {
        { NULL, 0, POPT_ARG_CALLBACK, (void *)ctdb_cmdline_callback },  
        { "socket", 0, POPT_ARG_STRING, &ctdb_cmdline.socketname, 0, "local socket name", "filename" },
        { "debug", 'd', POPT_ARG_STRING, &ctdb_cmdline.debuglevel, 0, "debug level"},
        { "torture", 0, POPT_ARG_NONE, &ctdb_cmdline.torture, 0, "enable nastiness in library", NULL },
        { "events", 0, POPT_ARG_STRING, NULL, OPT_EVENTSYSTEM, "event system", NULL },
        { NULL }
};


/*
  startup daemon side of ctdb according to command line options
 */
struct ctdb_context *ctdb_cmdline_init(struct tevent_context *ev)
{
        struct ctdb_context *ctdb;
        enum debug_level log_level;
        int ret;

        /* initialise ctdb */
        ctdb = ctdb_init(ev);
        if (ctdb == NULL) {
                printf("Failed to init ctdb\n");
                exit(1);
        }

        if (ctdb_cmdline.torture) {
                ctdb_set_flags(ctdb, CTDB_FLAG_TORTURE);
        }

        /* command line specified a socket name */
        if (ctdb_cmdline.socketname != NULL) {
                setenv("CTDB_SOCKET", ctdb_cmdline.socketname, 1);
                ret = ctdb_set_socketname(ctdb, ctdb_cmdline.socketname);
                if (ret == -1) {
                        printf("ctdb_set_socketname failed - %s\n",
                                                    ctdb_errstr(ctdb));
                        exit(1);
                }
        }

        /* Set the debug level */
        if (debug_level_parse(ctdb_cmdline.debuglevel, &log_level)) {
                DEBUGLEVEL = debug_level_to_int(log_level);
        } else {
                DEBUGLEVEL = debug_level_to_int(DEBUG_NOTICE);
        }

        /* set up the tree to store server ids */
        ctdb->server_ids = trbt_create(ctdb, 0);

        return ctdb;
}


/*
  startup a client only ctdb context
 */
struct ctdb_context *ctdb_cmdline_client(struct tevent_context *ev,
                                         struct timeval req_timeout)
{
        struct ctdb_context *ctdb;
        enum debug_level log_level;
        char *socket_name;
        int ret;

        /* initialise ctdb */
        ctdb = ctdb_init(ev);
        if (ctdb == NULL) {
                fprintf(stderr, "Failed to init ctdb\n");
                exit(1);
        }

        /* tell ctdb the socket address */
        socket_name = getenv("CTDB_SOCKET");
        if (socket_name != NULL) {
                ret = ctdb_set_socketname(ctdb, socket_name);
                if (ret == -1) {
                        printf("ctdb_set_socketname failed - %s\n",
                                                    ctdb_errstr(ctdb));
                        exit(1);
                }
        }

        if (ctdb_cmdline.socketname != NULL) {
                ret = ctdb_set_socketname(ctdb, ctdb_cmdline.socketname);
                if (ret == -1) {
                        fprintf(stderr, "ctdb_set_socketname failed - %s\n",
                                        ctdb_errstr(ctdb));
                        exit(1);
                }
        }

        /* Set the debug level */
        if (debug_level_parse(ctdb_cmdline.debuglevel, &log_level)) {
                DEBUGLEVEL = debug_level_to_int(log_level);
        } else {
                DEBUGLEVEL = debug_level_to_int(DEBUG_NOTICE);
        }

        ret = ctdb_socket_connect(ctdb);
        if (ret != 0) {
                fprintf(stderr, __location__ " Failed to connect to daemon\n");
                talloc_free(ctdb);
                return NULL;
        }

        /* get our pnn */
        ctdb->pnn = ctdb_ctrl_getpnn(ctdb, req_timeout, CTDB_CURRENT_NODE);
        if (ctdb->pnn == (uint32_t)-1) {
                DEBUG(DEBUG_CRIT,(__location__ " Failed to get ctdb pnn\n"));
                talloc_free(ctdb);
                return NULL;
        }

        return ctdb;
}