/* 
   ctdb status tool

   Copyright (C) Andrew Tridgell  2007

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 3 of the License, or (at your option) any later version.

   This library 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "lib/events/events.h"
#include "system/filesys.h"
#include "popt.h"
#include "cmdline.h"
#include "../include/ctdb_private.h"


/*
  display status structure
 */
static void show_status(struct ctdb_status *s)
{
	printf(" client_packets_sent     %u\n", s->client_packets_sent);
	printf(" client_packets_recv     %u\n", s->client_packets_recv);
	printf("   req_call              %u\n", s->client.req_call);
	printf("   req_message           %u\n", s->client.req_message);
	printf("   req_finished          %u\n", s->client.req_finished);
	printf("   req_register          %u\n", s->client.req_register);
	printf("   req_connect_wait      %u\n", s->client.req_connect_wait);
	printf("   req_shutdown          %u\n", s->client.req_shutdown);
	printf("   req_status            %u\n", s->client.req_status);
	printf(" node_packets_sent       %u\n", s->node_packets_sent);
	printf(" node_packets_recv       %u\n", s->node_packets_recv);
	printf("   req_call              %u\n", s->client.req_call);
	printf("   reply_call            %u\n", s->count.reply_call);
	printf("   reply_redirect        %u\n", s->count.reply_redirect);
	printf("   req_dmaster           %u\n", s->count.req_dmaster);
	printf("   reply_dmaster         %u\n", s->count.reply_dmaster);
	printf("   reply_error           %u\n", s->count.reply_error);
	printf("   reply_redirect        %u\n", s->count.reply_redirect);
	printf("   req_message           %u\n", s->count.req_message);
	printf("   req_finished          %u\n", s->count.req_finished);
	printf(" total_calls             %u\n", s->total_calls);
	printf(" pending_calls           %u\n", s->pending_calls);
	printf(" lockwait_calls          %u\n", s->lockwait_calls);
	printf(" pending_lockwait_calls  %u\n", s->pending_lockwait_calls);
	printf(" max_call_latency        %.6f seconds\n", s->max_call_latency);
	printf(" max_lockwait_latency    %.6f seconds\n", s->max_lockwait_latency);
}

/*
  show usage message
 */
static void usage(void)
{
	printf("Usage: ctdb_status <socketpath>\n");
	exit(1);
}

/*
  main program
*/
int main(int argc, const char *argv[])
{
	struct ctdb_context *ctdb;
	struct poptOption popt_options[] = {
		POPT_AUTOHELP
		POPT_CTDB_CMDLINE
		POPT_TABLEEND
	};
	int opt;
	const char **extra_argv;
	int extra_argc = 0;
	int ret;
	poptContext pc;
	struct event_context *ev;
	const char *ctdb_socket;
	struct ctdb_status status;

	pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);

	while ((opt = poptGetNextOpt(pc)) != -1) {
		switch (opt) {
		default:
			fprintf(stderr, "Invalid option %s: %s\n", 
				poptBadOption(pc, 0), poptStrerror(opt));
			exit(1);
		}
	}

	/* setup the remaining options for the main program to use */
	extra_argv = poptGetArgs(pc);
	if (extra_argv) {
		extra_argv++;
		while (extra_argv[extra_argc]) extra_argc++;
	}

	if (extra_argc < 1) {
		usage();
	}

	ctdb_socket = extra_argv[0];

	ev = event_context_init(NULL);

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

	ret = ctdb_status(ctdb, &status);
	if (ret != 0) {
		printf("Failed to get ctdb status\n");
		exit(1);
	}

	show_status(&status);

	return 0;
}