zabbix中 init_selfmon_collector函數的作用是什么

本篇文章給大家分享的是有關zabbix中 init_selfmon_collector函數的作用是什么，小編覺得挺實用的，因此分享給大家學習，希望大家閱讀完這篇文章后可以有所收獲，話不多說，跟著小編一起來看看吧。

zbx_free_config();

init_database_cache();

init_configuration_cache();//將配置放到緩存

init_selfmon_collector(); //初始本身進程監控收集

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);

}

以上就是zabbix中 init_selfmon_collector函數的作用是什么，小編相信有部分知識點可能是我們日常工作會見到或用到的。希望你能通過這篇文章學到更多知識。更多詳情敬請關注億速云行業資訊頻道。