The tests can now wait for a number of monitor intervals. This removes the need to have hard-coded sleeps in the code and makes monitor tests more robust under heavier load.
		
			
				
	
	
		
			489 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			489 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
#include "maxscales.h"
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#include <sstream>
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#include <unordered_map>
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Maxscales::Maxscales(const char *pref, const char *test_cwd, bool verbose)
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{
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    strcpy(prefix, pref);
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    this->verbose = verbose;
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    strcpy(test_dir, test_cwd);
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    read_env();
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}
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int Maxscales::read_env()
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{
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    char * env;
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    char env_name[64];
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    read_basic_env();
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    if ((N > 0) && (N < 255))
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    {
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        for (int i = 0; i < N; i++)
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        {
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            sprintf(env_name, "%s_%03d_cnf", prefix, i);
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            env = getenv(env_name);
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            if (env == NULL)
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            {
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                sprintf(env_name, "%s_cnf", prefix);
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                env = getenv(env_name);
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            }
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            if (env != NULL)
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            {
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                sprintf(maxscale_cnf[i], "%s", env);
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            }
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            else
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            {
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                sprintf(maxscale_cnf[i], "/etc/maxscale.cnf");
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            }
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            sprintf(env_name, "%s_%03d_log_dir", prefix, i);
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            env = getenv(env_name);
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            if (env == NULL)
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            {
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                sprintf(env_name, "%s_log_dir", prefix);
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                env = getenv(env_name);
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            }
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            if (env != NULL)
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            {
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                sprintf(maxscale_log_dir[i], "%s", env);
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            }
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            else
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            {
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                sprintf(maxscale_log_dir[i], "/var/log/maxscale/");
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            }
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            sprintf(env_name, "%s_%03d_binlog_dir", prefix, i);
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            env = getenv(env_name);
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            if (env == NULL)
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            {
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                sprintf(env_name, "%s_binlog_dir", prefix);
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                env = getenv(env_name);
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            }
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            if (env != NULL)
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            {
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                sprintf(maxscale_binlog_dir[i], "%s", env);
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            }
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            else
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            {
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                sprintf(maxscale_binlog_dir[i], "/var/lib/maxscale/Binlog_Service/");
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            }
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            sprintf(env_name, "%s_%03d_maxadmin_password", prefix, i);
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            env = getenv(env_name);
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            if (env == NULL)
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            {
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                sprintf(env_name, "%s_maxadmin_password", prefix);
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                env = getenv(env_name);
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            }
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            if (env != NULL)
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            {
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                sprintf(maxadmin_password[i], "%s", env);
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            }
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            else
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            {
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                sprintf(maxadmin_password[i], "mariadb");
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            }
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            rwsplit_port[i] = 4006;
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            readconn_master_port[i] = 4008;
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            readconn_slave_port[i] = 4009;
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            binlog_port[i] = 5306;
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            ports[i][0] = rwsplit_port[i];
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            ports[i][1] = readconn_master_port[i];
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            ports[i][2] = readconn_slave_port[i];
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            N_ports[0] = 3;
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        }
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    }
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    return 0;
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}
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int Maxscales::connect_rwsplit(int m)
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{
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    if (use_ipv6)
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    {
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        conn_rwsplit[m] = open_conn(rwsplit_port[m], IP6[m], user_name,
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                                    password, ssl);
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    }
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    else
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    {
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        conn_rwsplit[m] = open_conn(rwsplit_port[m], IP[m], user_name,
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                                    password, ssl);
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    }
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    routers[m][0] = conn_rwsplit[m];
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    int rc = 0;
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    int my_errno = mysql_errno(conn_rwsplit[m]);
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    if (my_errno)
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    {
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        if (verbose)
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        {
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            printf("Failed to connect to readwritesplit: %d, %s", my_errno, mysql_error(conn_rwsplit[m]));
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        }
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        rc = my_errno;
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    }
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    return rc;
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}
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int Maxscales::connect_readconn_master(int m)
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{
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    if (use_ipv6)
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    {
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        conn_master[m] = open_conn(readconn_master_port[m], IP6[m],
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                                   user_name, password, ssl);
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    }
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    else
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    {
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        conn_master[m] = open_conn(readconn_master_port[m], IP[m],
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                                   user_name, password, ssl);
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    }
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    routers[m][1] = conn_master[m];
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    int rc = 0;
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    int my_errno = mysql_errno(conn_master[m]);
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    if (my_errno)
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    {
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        if (verbose)
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        {
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            printf("Failed to connect to readwritesplit: %d, %s", my_errno, mysql_error(conn_master[m]));
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        }
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        rc = my_errno;
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    }
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    return rc;
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}
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int Maxscales::connect_readconn_slave(int m)
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{
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    if (use_ipv6)
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    {
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        conn_slave[m] = open_conn(readconn_slave_port[m], IP6[m],
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                                  user_name, password, ssl);
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    }
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    else
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    {
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        conn_slave[m] = open_conn(readconn_slave_port[m], IP[m],
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                                  user_name, password, ssl);
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    }
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    routers[m][2] = conn_slave[m];
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    int rc = 0;
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    int my_errno = mysql_errno(conn_slave[m]);
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    if (my_errno)
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    {
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        if (verbose)
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        {
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            printf("Failed to connect to readwritesplit: %d, %s", my_errno, mysql_error(conn_slave[m]));
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        }
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        rc = my_errno;
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    }
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    return rc;
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}
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int Maxscales::connect_maxscale(int m)
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{
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    return connect_rwsplit(m) +
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           connect_readconn_master(m) +
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           connect_readconn_slave(m);
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}
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int Maxscales::close_maxscale_connections(int m)
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{
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    mysql_close(conn_master[m]);
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    mysql_close(conn_slave[m]);
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    mysql_close(conn_rwsplit[m]);
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    return 0;
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}
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int Maxscales::restart_maxscale(int m)
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{
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    int res = ssh_node(m, "service maxscale restart", true);
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    fflush(stdout);
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    return res;
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}
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int Maxscales::start_maxscale(int m)
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{
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    int res = ssh_node(m, "service maxscale start", true);
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    fflush(stdout);
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    return res;
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}
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int Maxscales::stop_maxscale(int m)
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{
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    int res = ssh_node(m, "service maxscale stop", true);
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    fflush(stdout);
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    return res;
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}
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int Maxscales::execute_maxadmin_command(int m, const char * cmd)
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{
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    return ssh_node_f(m, true, "maxadmin %s", cmd);
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}
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int Maxscales::execute_maxadmin_command_print(int m, const char * cmd)
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{
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    int exit_code;
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    printf("%s\n", ssh_node_output_f(m, true, &exit_code,  "maxadmin %s", cmd));
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    return exit_code;
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}
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int Maxscales::check_maxadmin_param(int m, const char *command, const char *param, const char *value)
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{
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    char result[1024];
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    int rval = 1;
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    if (get_maxadmin_param(m, (char*)command, (char*)param, (char*)result) == 0)
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    {
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        char *end = strchr(result, '\0') - 1;
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        while (isspace(*end))
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        {
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            *end-- = '\0';
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        }
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        char *start = result;
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        while (isspace(*start))
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        {
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            start++;
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        }
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        if (strcmp(start, value) == 0)
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        {
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            rval = 0;
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        }
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        else
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        {
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            printf("Expected %s, got %s\n", value, start);
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        }
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    }
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    return rval;
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}
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int Maxscales::get_maxadmin_param(int m, const char *command, const char *param, char *result)
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{
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    char        * buf;
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    int exit_code;
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    buf = ssh_node_output_f(m, true, &exit_code, "maxadmin %s", command);
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    //printf("%s\n", buf);
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    char *x = strstr(buf, param);
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    if (x == NULL)
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    {
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        return 1;
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    }
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    x += strlen(param);
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    // Skip any trailing parts of the parameter name
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    while (!isspace(*x))
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    {
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        x++;
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    }
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    // Trim leading whitespace
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    while (!isspace(*x))
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    {
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        x++;
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    }
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    char *end = strchr(x, '\n');
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    // Trim trailing whitespace
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    while (isspace(*end))
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    {
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        *end-- = '\0';
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    }
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    strcpy(result, x);
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    return exit_code;
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}
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long unsigned Maxscales::get_maxscale_memsize(int m)
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{
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    int exit_code;
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    char * ps_out = ssh_node_output(m, "ps -e -o pid,vsz,comm= | grep maxscale", false, &exit_code);
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    long unsigned mem = 0;
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    pid_t pid;
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    sscanf(ps_out, "%d %lu", &pid, &mem);
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    return mem;
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}
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int Maxscales::find_master_maxadmin(Mariadb_nodes * nodes, int m)
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{
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    bool found = false;
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    int master = -1;
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    for (int i = 0; i < nodes->N; i++)
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    {
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        char show_server[256];
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        char res[256];
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        sprintf(show_server, "show server server%d", i + 1);
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        get_maxadmin_param(m, show_server, (char *) "Status", res);
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        if (strstr(res, "Master"))
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        {
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            if (found)
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            {
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                master = -1;
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            }
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            else
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            {
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                master = i;
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                found = true;
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            }
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        }
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    }
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    return master;
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}
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int Maxscales::find_slave_maxadmin(Mariadb_nodes * nodes, int m)
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{
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    int slave = -1;
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    for (int i = 0; i < nodes->N; i++)
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    {
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        char show_server[256];
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        char res[256];
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        sprintf(show_server, "show server server%d", i + 1);
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        get_maxadmin_param(m, show_server, (char *) "Status", res);
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        if (strstr(res, "Slave"))
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        {
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            slave = i;
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        }
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    }
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    return slave;
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}
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StringSet Maxscales::get_server_status(const char* name, int m)
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{
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    std::set<std::string> rval;
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    int exit_code;
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    char* res = ssh_node_output_f(m, true, &exit_code, "maxadmin list servers|grep \'%s\'", name);
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    char* pipe = strrchr(res, '|');
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    if (res && pipe)
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    {
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        pipe++;
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        char* tok = strtok(pipe, ",");
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        while (tok)
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        {
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            char* p = tok;
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            char *end = strchr(tok, '\n');
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            if (!end)
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            {
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                end = strchr(tok, '\0');
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            }
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            // Trim leading whitespace
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            while (p < end && isspace(*p))
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            {
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                p++;
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            }
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            // Trim trailing whitespace
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            while (end > tok && isspace(*end))
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            {
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                *end-- = '\0';
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            }
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            rval.insert(p);
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            tok = strtok(NULL, ",\n");
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        }
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        free(res);
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    }
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    return rval;
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}
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int Maxscales::port(enum service type, int m) const
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{
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    switch (type)
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    {
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    case RWSPLIT:
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        return rwsplit_port[m];
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    case READCONN_MASTER:
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        return readconn_master_port[m];
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    case READCONN_SLAVE:
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        return readconn_slave_port[m];
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    }
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    return -1;
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}
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void Maxscales::wait_for_monitor(int intervals, int m)
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{
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    //Helper for getting number of monitor ticks
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    auto get_ticks = [&](std::string name)
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    {
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        int rc;
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        char* ticks = ssh_node_output_f(m, false, &rc,  "maxctrl api get monitors/%s data.attributes.ticks", name.c_str());
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        char* ptr;
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        int rval = strtol(ticks, &ptr, 10);
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        if (ptr == ticks || (*ptr != '\0' && !isspace(*ptr)))
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        {
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            printf("ERROR, invalid monitor tick value: %s\n", ticks);
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            rval = -1;
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        }
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        free(ticks);
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        return rval;
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    };
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    int rc = 0;
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    // Get a list of monitor names that are running
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    char* monitors = ssh_node_output_f(m, false, &rc,  "maxctrl --tsv list monitors|grep Running|cut -f 1");
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    std::istringstream is;
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    is.str(monitors);
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    free(monitors);
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    std::string name;
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    std::unordered_map<std::string, int> ticks;
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    // For each monitor, store the current monitor tick
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    while (std::getline(is, name))
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    {
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        ticks[name] = get_ticks(name);
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    }
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    for (auto a: ticks)
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    {
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        // Wait a maximum of 60 seconds for a single monitor interval
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        for (int i = 0; i < 60; i++)
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        {
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            int start = a.second;
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            int end = get_ticks(a.first);
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            if (start == -1 || end == -1 || end - start >= intervals)
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            {
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                break;
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            }
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            sleep(1);
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        }
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    }
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}
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