140 lines
3.8 KiB
C
140 lines
3.8 KiB
C
#pragma once
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/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2020-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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/**
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* @file core/maxscale/monitor.h - The private monitor interface
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*/
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#include <maxscale/monitor.h>
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#include "externcmd.h"
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MXS_BEGIN_DECLS
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#define MON_ARG_MAX 8192
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#define DEFAULT_CONNECT_TIMEOUT 3
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#define DEFAULT_READ_TIMEOUT 1
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#define DEFAULT_WRITE_TIMEOUT 2
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#define DEFAULT_CONNECTION_ATTEMPTS 1
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#define DEFAULT_MONITOR_INTERVAL 2000 // in milliseconds
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/** Default maximum journal age in seconds */
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#define DEFAULT_JOURNAL_MAX_AGE 28800
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/** Default script execution timeout in seconds */
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#define DEFAULT_SCRIPT_TIMEOUT 90
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/**
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* Monitor network timeout types
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*/
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typedef enum
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{
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MONITOR_CONNECT_TIMEOUT = 0,
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MONITOR_READ_TIMEOUT = 1,
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MONITOR_WRITE_TIMEOUT = 2,
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MONITOR_CONNECT_ATTEMPTS = 3
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} monitor_timeouts_t;
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MXS_MONITOR *monitor_create(const char *, const char *);
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void monitor_destroy(MXS_MONITOR *);
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void monitor_start(MXS_MONITOR *, const MXS_CONFIG_PARAMETER*);
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void monitor_stop(MXS_MONITOR *);
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/**
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* @brief Mark monitor as deactivated
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*
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* A deactivated monitor appears not to exist, as if it had been
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* destroyed.
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*
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* @param monitor
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*/
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void monitor_deactivate(MXS_MONITOR* monitor);
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void monitor_stop_all();
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void monitor_start_all();
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/**
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* @brief Destroys all monitors. At this point all monitors should
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* have been stopped.
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*
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* @attn Must only be called in single-thread context at system shutdown.
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*/
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void monitor_destroy_all();
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MXS_MONITOR *monitor_find(const char *);
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MXS_MONITOR* monitor_repurpose_destroyed(const char* name, const char* module);
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void monitor_show(DCB *, MXS_MONITOR *);
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void monitor_show_all(DCB *);
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void monitor_list(DCB *);
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RESULTSET *monitor_get_list();
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bool monitor_add_server(MXS_MONITOR *mon, SERVER *server);
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void monitor_remove_server(MXS_MONITOR *mon, SERVER *server);
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void monitor_add_user(MXS_MONITOR *, const char *, const char *);
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void monitor_add_parameters(MXS_MONITOR *monitor, MXS_CONFIG_PARAMETER *params);
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bool monitor_remove_parameter(MXS_MONITOR *monitor, const char *key);
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void monitor_set_interval (MXS_MONITOR *, unsigned long);
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bool monitor_set_network_timeout(MXS_MONITOR *, int, int, const char*);
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void monitor_set_journal_max_age(MXS_MONITOR *mon, time_t value);
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void monitor_set_script_timeout(MXS_MONITOR *mon, uint32_t value);
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/**
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* @brief Serialize a monitor to a file
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*
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* This converts the static configuration of the monitor into an INI format file.
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*
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* @param monitor Monitor to serialize
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* @return True if serialization was successful
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*/
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bool monitor_serialize(const MXS_MONITOR *monitor);
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/**
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* Check if a server is being monitored and return the monitor.
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* @param server Server that is queried
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* @return The monitor watching this server, or NULL if not monitored
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*/
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MXS_MONITOR* monitor_server_in_use(const SERVER *server);
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/**
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* Launch a script
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*
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* @param mon Owning monitor
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* @param ptr The server which has changed state
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* @param script Script to execute
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* @param timeout Timeout in seconds for the script
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*
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* @return Return value of the executed script or -1 on error
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*/
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int monitor_launch_script(MXS_MONITOR* mon, MXS_MONITORED_SERVER* ptr, const char* script, uint32_t timeout);
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/**
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* Launch a command
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*
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* @param mon Owning monitor
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* @param ptr The server which has changed state
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* @param cmd The command to execute.
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*
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* @note All default script variables will be replaced.
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*
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* @return Return value of the executed script or -1 on error.
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*/
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int monitor_launch_command(MXS_MONITOR* mon, MXS_MONITORED_SERVER* ptr, EXTERNCMD* cmd);
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MXS_END_DECLS
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