/* running in print live mode */
void
running_print_live()
{//实时隔一会打印一行数据。
int print_num = 1, re_p_hdr = 0;
collect_record();
/* print header */
print_header();
/* set struct module fields */
init_module_fields();
/* skip first record */
if (collect_record_stat() == 0) {
do_debug(LOG_INFO, "collect_record_stat warn\n");
}
sleep(conf.print_interval);
/* print live record */
while (1) {
collect_record();//调用各个模块的回调函数，获取一次当前的数据，字符串形式保存在mod->record中。
if (!((print_num) % DEFAULT_PRINT_NUM) || re_p_hdr) {
/* get the header will print every DEFAULT_PRINT_NUM */
print_header();
re_p_hdr = 0;
print_num = 1;
}
if (!collect_record_stat()) {//解析mod->record里面的数据，放入st_array中，以备打印
re_p_hdr = 1;
continue;
}
/* print current time */
print_current_time();
print_record();//打印st_array里面的数据
print_num++;
/* sleep every interval */
sleep(conf.print_interval);//睡会。
}
}
/* running in print live mode */
void
running_print_live()
{
int print_num = 1, re_p_hdr = 0;
collect_record();
/* print header */
print_header();
/* set struct module fields */
init_module_fields();
/* skip first record */
if (collect_record_stat() == 0) {
do_debug(LOG_INFO, "collect_record_stat warn\n");
}
sleep(conf.print_interval);
/* print live record */
while (1) {
collect_record();
if (!((print_num) % DEFAULT_PRINT_NUM) || re_p_hdr) {
/* get the header will print every DEFAULT_PRINT_NUM */
print_header();
re_p_hdr = 0;
print_num = 1;
}
if (!collect_record_stat()) {
re_p_hdr = 1;
continue;
}
/* print current time */
print_current_time();
print_record();
print_num++;
/* sleep every interval */
sleep(conf.print_interval);
}
}
void running_cron(void) {
int have_collect = 0;
if (strstr(conf.output_interface, "file")) {
/* 一次收集数据,db和nagios都可以使用 */
collect_record();
output_file();
have_collect = 1;
}
if (strstr(conf.output_interface, "db"))
output_db();
if (strstr(conf.output_interface, "nagios"))
output_nagios();
}
void
running_cron()
{
int have_collect = 0;
/* output interface */
if (strstr(conf.output_interface, "file")) {
/* output data */
collect_record();
output_file();
have_collect = 1;
}
if (strstr(conf.output_interface, "db")) {
output_db(have_collect);
}
if (strstr(conf.output_interface, "nagios")) {
output_nagios();
}
}
/*
get data from tsar.data
*/
int
get_st_array_from_file(int have_collect)
{
int i, ret = 0;
char pre_line[LEN_10240] = {0};
char line[LEN_10240] = {0};
char detail[LEN_1024] = {0};
char pre_time[32] = {0};
char *s_token;
FILE *fp;
struct module *mod;
if (!have_collect) {
collect_record(0);
}
/* update module parameter */
conf.print_merge = MERGE_ITEM;
sprintf(line, "%ld", statis.cur_time);
for (i = 0; i < statis.total_mod_num; i++) {
mod = &mods[i];
if (mod->enable && strlen(mod->record)) {
memset(&detail, 0, sizeof(detail));
/* save collect data to output_file */
sprintf(detail, "%s%s%s%s", SECTION_SPLIT, mod->opt_line, STRING_SPLIT, mod->record);
strcat(line, detail);
}
}
if (strlen(line)) {
strcat(line, "\n");
}
/* if fopen PRE_RECORD_FILE sucess then store data to pre_record */
if ((fp = fopen(PRE_RECORD_FILE, "r"))) {
if (!fgets(pre_line, LEN_10240, fp)) {
if (fclose(fp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
ret = -1;
goto out;
}
} else {
ret = -1;
goto out;
}
/* set print_interval */
s_token = strstr(pre_line, SECTION_SPLIT);
if (!s_token) {
ret = -1;
goto out;
}
memcpy(pre_time, pre_line, s_token - pre_line);
if (!(conf.print_interval = statis.cur_time - atol(pre_time))) {
goto out;
}
/* read pre_line to mod->record and store to pre_array */
read_line_to_module_record(pre_line);
init_module_fields();
collect_record_stat();
/* read cur_line and stats operation */
read_line_to_module_record(line);
collect_record_stat();
ret = 0;
out:
/* store current record to PRE_RECORD_FILE */
if ((fp = fopen(PRE_RECORD_FILE, "w"))) {
strcat(line, "\n");
if (fputs(line, fp) < 0) {
do_debug(LOG_ERR, "fputs error:%s", strerror(errno));
}
if (fclose(fp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
chmod(PRE_RECORD_FILE, 0666);
}
return ret;
}