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/* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
#include <ndb_global.h>
#include <ndb_opts.h>
// copied from mysql.cc to get readline
extern "C" {
#if defined( __WIN__)
#include <conio.h>
#else
#include <readline/readline.h>
extern "C" int add_history(const char *command); /* From readline directory */
extern "C" int read_history(const char *command);
extern "C" int write_history(const char *command);
#define HAVE_READLINE
#endif
}
#include <NdbMain.h>
#include <NdbHost.h>
#include <BaseString.hpp>
#include <NdbOut.hpp>
#include <mgmapi.h>
#include <ndb_version.h>
#include "ndb_mgmclient.hpp"
const char *progname = "ndb_mgm";
const char *load_default_groups[]= { "mysql_cluster","ndb_mgm",0 };
static Ndb_mgmclient* com;
extern "C"
void
handler(int sig)
{
DBUG_ENTER("handler");
switch(sig){
case SIGPIPE:
/**
* Will happen when connection to mgmsrv is broken
* Reset connected flag
*/
com->disconnect();
break;
}
DBUG_VOID_RETURN;
}
NDB_STD_OPTS_VARS;
static const char default_prompt[]= "ndb_mgm> ";
static unsigned _try_reconnect;
static const char *prompt= default_prompt;
static char *opt_execute_str= 0;
static struct my_option my_long_options[] =
{
NDB_STD_OPTS("ndb_mgm"),
{ "execute", 'e',
"execute command and exit",
&opt_execute_str, &opt_execute_str, 0,
GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },
{ "try-reconnect", 't',
"Specify number of tries for connecting to ndb_mgmd (0 = infinite)",
&_try_reconnect, &_try_reconnect, 0,
GET_UINT, REQUIRED_ARG, 3, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};
static void short_usage_sub(void)
{
printf("Usage: %s [OPTIONS] [hostname [port]]\n", my_progname);
}
static void usage()
{
short_usage_sub();
ndb_std_print_version();
print_defaults(MYSQL_CONFIG_NAME,load_default_groups);
puts("");
my_print_help(my_long_options);
my_print_variables(my_long_options);
}
static int
read_and_execute(int _try_reconnect)
{
static char *line_read = (char *)NULL;
/* If the buffer has already been allocated, return the memory
to the free pool. */
if (line_read)
{
free (line_read);
line_read = (char *)NULL;
}
#ifdef HAVE_READLINE
/* Get a line from the user. */
line_read = readline (prompt);
/* If the line has any text in it, save it on the history. */
if (line_read && *line_read)
add_history (line_read);
#else
static char linebuffer[254];
fputs(prompt, stdout);
linebuffer[sizeof(linebuffer)-1]=0;
line_read = fgets(linebuffer, sizeof(linebuffer)-1, stdin);
if (line_read == linebuffer) {
char *q=linebuffer;
while (*q > 31) q++;
*q=0;
line_read= strdup(linebuffer);
}
#endif
return com->execute(line_read, _try_reconnect, 1);
}
int main(int argc, char** argv){
NDB_INIT(argv[0]);
load_defaults("my",load_default_groups,&argc,&argv);
int ho_error;
#ifndef DBUG_OFF
opt_debug= "d:t:O,/tmp/ndb_mgm.trace";
#endif
if ((ho_error=handle_options(&argc, &argv, my_long_options,
ndb_std_get_one_option)))
exit(ho_error);
char buf[MAXHOSTNAMELEN+10];
if(argc == 1) {
BaseString::snprintf(buf, sizeof(buf), "%s", argv[0]);
opt_connect_str= buf;
} else if (argc >= 2) {
BaseString::snprintf(buf, sizeof(buf), "%s:%s", argv[0], argv[1]);
opt_connect_str= buf;
}
if (!isatty(0) || opt_execute_str)
{
prompt= 0;
}
signal(SIGPIPE, handler);
com = new Ndb_mgmclient(opt_connect_str,1);
int ret= 0;
BaseString histfile;
if (!opt_execute_str)
{
#ifdef HAVE_READLINE
char *histfile_env= getenv("NDB_MGM_HISTFILE");
if (histfile_env)
histfile.assign(histfile_env,strlen(histfile_env));
else if(getenv("HOME"))
{
histfile.assign(getenv("HOME"),strlen(getenv("HOME")));
histfile.append("/.ndb_mgm_history");
}
if (histfile.length())
read_history(histfile.c_str());
#endif
ndbout << "-- NDB Cluster -- Management Client --" << endl;
while(read_and_execute(_try_reconnect));
#ifdef HAVE_READLINE
if (histfile.length())
{
BaseString histfile_tmp;
histfile_tmp.assign(histfile);
histfile_tmp.append(".TMP");
if(!write_history(histfile_tmp.c_str()))
my_rename(histfile_tmp.c_str(), histfile.c_str(), MYF(MY_WME));
}
#endif
}
else
{
com->execute(opt_execute_str,_try_reconnect, 0, &ret);
}
delete com;
ndb_end(opt_endinfo ? MY_CHECK_ERROR | MY_GIVE_INFO : 0);
return ret;
}
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