What is the function of init_selfmon_collector function in zabbix
This article is to share with you about the role of the init_selfmon_collector function in zabbix, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.
Zbx_free_config ()
Init_database_cache ()
Init_configuration_cache (); / / put the configuration into cache
Init_selfmon_collector (); / / initial process monitoring collection
Void init_selfmon_collector (void)
{
Const char * _ _ function_name = "init_selfmon_collector"
Size_t sz, sz_array, sz_ process[ZBX _ PROCESS_TYPE_COUNT], sz_total
Key_t shm_key
Char * p
Clock_t ticks
Struct tms buf
Unsigned char proc_type
Int proc_num, process_forks
Zabbix_log (LOG_LEVEL_DEBUG, "In% s ()", _ _ function_name)
Sz_total = sz = sizeof (zbx_selfmon_collector_t)
Sz_total + = sz_array = sizeof (zbx_stat_process_t *) * ZBX_PROCESS_TYPE_COUNT
For (proc_type = 0; ZBX_PROCESS_TYPE_COUNT > proc_type; proc_type++)
Sz_total + = sz_ process [proc _ type] = sizeof (zbx_stat_process_t) * get_process_type_forks (proc_type)
Zabbix_log (LOG_LEVEL_DEBUG, "% s () size:" ZBX_FS_SIZE_T, _ _ function_name, (zbx_fs_size_t) sz_total)
If (- 1 = (shm_key = zbx_ftok (CONFIG_FILE, ZBX_IPC_SELFMON_ID)
{
Zabbix_log (LOG_LEVEL_CRIT, "cannot create IPC key for a self-monitoring collector")
Exit (EXIT_FAILURE)
}
If (FAIL = = zbx_mutex_create_force (& sm_lock, ZBX_MUTEX_SELFMON))
{
Zbx_error ("unable to create mutex for a self-monitoring collector")
Exit (EXIT_FAILURE)
}
If (- 1 = (shm_id = zbx_shmget (shm_key, sz_total)
{
Zabbix_log (LOG_LEVEL_CRIT, "cannot allocate shared memory for a self-monitoring collector")
Exit (EXIT_FAILURE)
}
If ((void *) (- 1) = (p = shmat (shm_id, NULL, 0)
{
Zabbix_log (LOG_LEVEL_CRIT, "cannot attach shared memory for a self-monitoring collector:% s"
Zbx_strerror (errno))
Exit (EXIT_FAILURE)
}
Collector = (zbx_selfmon_collector_t *) p; p + = sz
Collector- > process = (zbx_stat_process_t * *) p; p + = sz_array
Ticks = times (& buf)
For (proc_type = 0; ZBX_PROCESS_TYPE_COUNT > proc_type; proc_type++)
{
Collector- > process [proc _ type] = (zbx_stat_process_t *) p; p + = sz_ process [proc _ type]
Memset (collector- > process [proc _ type], 0, sz_ process [proc _ type])
Process_forks = get_process_type_forks (proc_type)
For (proc_num = 0; proc_num)
< process_forks; proc_num++) { collector->Process [proc _ type] [proc_num] .last _ ticks = ticks
Collector- > process [proc _ type] [proc_num] .last _ state = ZBX_PROCESS_STATE_BUSY
}
}
Zabbix_log (LOG_LEVEL_DEBUG, "End of% s () collector:%p", _ _ function_name, collector)
}
These are the functions of the init_selfmon_collector function in zabbix. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.
