/* 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_check(int check_type)
{
int total_num=0, i, j, k;
FILE *fp;
char line[2][LEN_10240];
char filename[LEN_128] = {0};
char tmp[9][LEN_256];
char check[LEN_10240] = {0};
char host_name[LEN_64] = {0};
struct module *mod = NULL;
double *st_array;
/* get hostname */
if (0 != gethostname(host_name, sizeof(host_name))) {
do_debug(LOG_FATAL, "tsar -check: gethostname err, errno=%d", errno);
}
i = 0;
while (host_name[i]) {
if (!isprint(host_name[i++])) {
host_name[i-1] = '\0';
break;
}
}
memset(tmp, 0, 9 * LEN_256);
sprintf(check, "%s\ttsar\t", host_name);
sprintf(filename, "%s", conf.output_file_path);
fp = fopen(filename, "r");
if (!fp) {
do_debug(LOG_FATAL, "unable to open the log file %s.\n", filename);
}
/* get file len */
memset(&line[0], 0, LEN_10240);
total_num =0;
/* find two \n from end*/
if (fseek(fp, -1, SEEK_END) != 0) {
do_debug(LOG_FATAL, "fseek error:%s", strerror(errno));
}
while (1) {
if (fgetc(fp) == '\n') {
++total_num;
}
if (total_num == 3) {
break;
}
if (fseek(fp, -2, SEEK_CUR) != 0) {
/* just 1 or 2 line, goto file header */
if (fseek(fp, 0, SEEK_SET) != 0) {
do_debug(LOG_FATAL, "fseek error:%s", strerror(errno));
}
break;
}
}
/*FIX ME*/
if (total_num == 0) {
if (fclose(fp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
memset(filename, 0, sizeof(filename));
sprintf(filename, "%s.1", conf.output_file_path);
fp = fopen(filename, "r");
if (!fp) {
do_debug(LOG_FATAL, "unable to open the log file %s.\n", filename);
}
total_num = 0;
memset(&line[0], 0, 2 * LEN_10240);
/* count tsar.data.1 lines */
if (fseek(fp, -1, SEEK_END) != 0) {
do_debug(LOG_FATAL, "fseek error:%s", strerror(errno));
}
while (1) {
if (fgetc(fp) == '\n') {
++total_num;
}
if (total_num == 3) {
break;
}
if (fseek(fp, -2, SEEK_CUR) != 0) {
if (fseek(fp, 0, SEEK_SET) != 0) {
do_debug(LOG_FATAL, "fseek error:%s", strerror(errno));
}
break;
}
}
if (total_num < 2) {
do_debug(LOG_FATAL, "not enough lines at log file %s.\n", filename);
}
memset(&line[0], 0, LEN_10240);
if (!fgets(line[0], LEN_10240, fp)) {
do_debug(LOG_FATAL, "fgets error:%s", strerror(errno));
}
memset(&line[1], 0, LEN_10240);
if (!fgets(line[1], LEN_10240, fp)) {
do_debug(LOG_FATAL, "fgets error:%s", strerror(errno));
}
} else if (total_num == 1) {
memset(&line[1], 0, LEN_10240);
if (!fgets(line[1], LEN_10240, fp)) {
do_debug(LOG_FATAL, "fgets error:%s", strerror(errno));
}
if (fclose(fp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
sprintf(filename, "%s.1", conf.output_file_path);
fp = fopen(filename, "r");
if (!fp) {
do_debug(LOG_FATAL, "unable to open the log file %s\n", filename);
}
total_num = 0;
/* go to the start of the last line at tsar.data.1 */
if (fseek(fp, -1, SEEK_END) != 0) {
do_debug(LOG_FATAL, "fseek error:%s", strerror(errno));
}
while (1) {
if (fgetc(fp) == '\n') {
++total_num;
}
/* find the sencond \n from the end, read fp point to the last line */
if (total_num == 2) {
break;
}
if (fseek(fp, -2, SEEK_CUR) != 0) {
if (fseek(fp, 0, SEEK_SET) != 0) {
do_debug(LOG_FATAL, "fseek error:%s", strerror(errno));
}
break;
}
}
if (total_num < 1) {
do_debug(LOG_FATAL, "not enough lines at log file %s\n", filename);
}
memset(&line[0], 0, LEN_10240);
if (!fgets(line[0], LEN_10240, fp)) {
do_debug(LOG_FATAL, "fgets error:%s", strerror(errno));
}
} else {
memset(&line[0], 0, LEN_10240);
if (!fgets(line[0], LEN_10240, fp)) {
do_debug(LOG_FATAL, "fgets error:%s", strerror(errno));
}
memset(&line[1], 0, LEN_10240);
if (!fgets(line[1], LEN_10240, fp)) {
do_debug(LOG_FATAL, "fgets error:%s", strerror(errno));
}
}
/* set struct module fields */
init_module_fields();
/* read one line to init module parameter */
read_line_to_module_record(line[0]);
collect_record_stat();
read_line_to_module_record(line[1]);
collect_record_stat();
/*display check detail*/
/* ---------------------------RUN_CHECK_NEW--------------------------------------- */
if (check_type == RUN_CHECK_NEW) {
printf("%s\ttsar\t", host_name);
for (i = 0; i < statis.total_mod_num; i++) {
mod = &mods[i];
if (!mod->enable) {
continue;
}
struct mod_info *info = mod->info;
/* get mod name */
char *mod_name = strstr(mod->opt_line, "--");
if (mod_name) {
mod_name += 2;
}
char opt[LEN_128] = {0};
char *n_record = strdup(mod->record);
char *token = strtok(n_record, ITEM_SPLIT);
char *s_token;
for (j = 0; j < mod->n_item; j++) {
memset(opt, 0, sizeof(opt));
if (token) {
s_token = strstr(token, ITEM_SPSTART);
if (s_token) {
strncat(opt, token, s_token - token);
strcat(opt, ":");
}
}
st_array = &mod->st_array[j * mod->n_col];
for (k=0; k < mod->n_col; k++) {
if (mod->spec) {
if (!st_array || !mod->st_flag) {
if (((DATA_SUMMARY == conf.print_mode) && (SPEC_BIT == info[k].summary_bit))
|| ((DATA_DETAIL == conf.print_mode) && (SPEC_BIT == info[k].summary_bit)))
{
printf("%s:%s%s=-%s", mod_name, opt, trim(info[k].hdr, LEN_128), " ");
}
} else {
if (((DATA_SUMMARY == conf.print_mode) && (SPEC_BIT == info[k].summary_bit))
|| ((DATA_DETAIL == conf.print_mode) && (SPEC_BIT == info[k].summary_bit)))
{
printf("%s:%s%s=", mod_name, opt, trim(info[k].hdr, LEN_128));
printf("%0.1f ", st_array[k]);
}
}
} else {
if (!st_array || !mod->st_flag) {
if (((DATA_SUMMARY == conf.print_mode) && (SUMMARY_BIT == info[k].summary_bit))
|| ((DATA_DETAIL == conf.print_mode) && (HIDE_BIT != info[k].summary_bit)))
{
printf("%s:%s%s=-%s", mod_name, opt, trim(info[k].hdr, LEN_128), " ");
}
} else {
if (((DATA_SUMMARY == conf.print_mode) && (SUMMARY_BIT == info[k].summary_bit))
|| ((DATA_DETAIL == conf.print_mode) && (HIDE_BIT != info[k].summary_bit)))
{
printf("%s:%s%s=", mod_name, opt, trim(info[k].hdr, LEN_128));
printf("%0.1f ", st_array[k]);
}
}
}
}
if (token) {
token = strtok(NULL, ITEM_SPLIT);
}
}
if (n_record) {
free(n_record);
n_record = NULL;
}
}
printf("\n");
if (fclose(fp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
fp = NULL;
return;
}
#ifdef OLDTSAR
/*tsar -check output similar as:
v014119.cm3 tsar apache/qps=5.35 apache/rt=165.89 apache/busy=2 apache/idle=148 cpu=3.58 mem=74.93% load1=0.22 load5=0.27 load15=0.20 xvda=0.15 ifin=131.82 ifout=108.86 TCPretr=0.12 df/=4.04% df/home=10.00% df/opt=71.22% df/tmp=2.07% df/usr=21.27% df/var=5.19%
*/
/* ------------------------------RUN_CHECK------------------------------------------- */
if (check_type == RUN_CHECK) {
for (i = 0; i < statis.total_mod_num; i++) {
mod = &mods[i];
if (!mod->enable){
continue;
}
if (!strcmp(mod->name, "mod_apache")) {
for (j = 0; j < mod->n_item; j++) {
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(tmp[0], " apache/qps=- apache/rt=- apache/busy=- apache/idle=-");
} else {
sprintf(tmp[0], " apache/qps=%0.2f apache/rt=%0.2f apache/busy=%0.0f apache/idle=%0.0f", st_array[0], st_array[1], st_array[3], st_array[4]);
}
}
}
if (!strcmp(mod->name, "mod_cpu")) {
for (j = 0; j < mod->n_item; j++) {
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(tmp[1], " cpu=-");
} else {
sprintf(tmp[1], " cpu=%0.2f", st_array[5]);
}
}
}
if (!strcmp(mod->name, "mod_mem")) {
for (j = 0; j < mod->n_item; j++) {
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(tmp[2], " mem=-");
} else {
sprintf(tmp[2], " mem=%0.2f%%", st_array[5]);
}
}
}
if (!strcmp(mod->name, "mod_load")) {
for (j = 0; j < mod->n_item; j++) {
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(tmp[3], " load1=- load5=- load15=-");
} else {
sprintf(tmp[3], " load1=%0.2f load5=%0.2f load15=%0.2f", st_array[0], st_array[1], st_array[2]);
}
}
}
if (!strcmp(mod->name, "mod_io")) {
char opt[LEN_128] = {0};
char item[LEN_128] = {0};
char *n_record = strdup(mod->record);
char *token = strtok(n_record, ITEM_SPLIT);
char *s_token;
for (j = 0; j < mod->n_item; j++) {
s_token = strstr(token, ITEM_SPSTART);
if (s_token) {
memset(opt, 0, sizeof(opt));
strncat(opt, token, s_token - token);
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(item, " %s=-", opt);
} else {
sprintf(item, " %s=%0.2f", opt, st_array[10]);
}
strcat(tmp[4], item);
}
token = strtok(NULL, ITEM_SPLIT);
}
if (n_record) {
free(n_record);
n_record = NULL;
}
}
if (!strcmp(mod->name, "mod_traffic")) {
for (j = 0; j < mod->n_item; j++) {
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(tmp[5], " ifin=- ifout=-");
} else {
sprintf(tmp[5], " ifin=%0.2f ifout=%0.2f", st_array[0] / 1000, st_array[1] / 1000);
}
}
}
if (!strcmp(mod->name, "mod_tcp")) {
for (j = 0; j < mod->n_item; j++) {
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(tmp[6], " TCPretr=-");
} else {
sprintf(tmp[6], " TCPretr=%0.2f", st_array[4]);
}
}
}
if (!strcmp(mod->name, "mod_partition")) {
char opt[LEN_128] = {0};
char item[LEN_128] = {0};
char *n_record = strdup(mod->record);
char *token = strtok(n_record, ITEM_SPLIT);
char *s_token;
for (j = 0; j < mod->n_item; j++) {
s_token = strstr(token, ITEM_SPSTART);
if (s_token) {
memset(opt, 0, sizeof(opt));
strncat(opt, token, s_token - token);
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(item, " df%s=-", opt);
} else {
sprintf(item, " df%s=%0.2f%%", opt, st_array[3]);
}
strcat(tmp[7], item);
}
token = strtok(NULL, ITEM_SPLIT);
}
if (n_record) {
free(n_record);
n_record = NULL;
}
}
if (!strcmp(mod->name, "mod_nginx")){
for (j = 0; j < mod->n_item; j++) {
st_array = &mod->st_array[j * mod->n_col];
if (!st_array || !mod->st_flag) {
sprintf(tmp[8], " nginx/qps=- nginx/rt=-");
} else {
sprintf(tmp[8], " nginx/qps=%0.2f nginx/rt=%0.2f", st_array[7], st_array[8]);
}
}
}
}
for (j = 0; j < 9; j++) {
strcat(check, tmp[j]);
}
printf("%s\n", check);
if (fclose(fp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
fp = NULL;
}
#endif
}
/*
* init_running_print, if sucess then return fp, else return NULL
*/
FILE *
init_running_print()
{
int i=0, k=0;
FILE *fp, *fptmp;
char line[LEN_10240] = {0};
char filename[LEN_128] = {0};
/* will print tail*/
conf.print_tail = 1;
fp = fopen(conf.output_file_path, "r");//读取/var/log/tsar.data文件
if (!fp) {
do_debug(LOG_FATAL, "unable to open the log file %s\n", conf.output_file_path);
}
/*log number to use for print*/
conf.print_file_number = -1;
/* find start offset will print from tsar.data */
k=find_offset_from_start(fp, i);//在tsar.data文件中，用二分查找，找出要开始打印的行的位置放在print_file_number。
if (k == 1) {//如果返回1，代表当前的文件里面没有数据，数据在后面的文件中。用同样的方法扫描后面的文件。
/*find all possible record*/
for (i=1; ; i++) {
memset(filename, 0, sizeof(filename));
sprintf(filename, "%s.%d", conf.output_file_path, i);
fptmp = fopen(filename, "r");
if (!fptmp) {
conf.print_file_number = i - 1;
break;
}
k=find_offset_from_start(fptmp, i);
if (k==0 || k==4) {
if (fclose(fp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
fp=fptmp;
break;
}
if (k== 2) {
if (fseek(fp, 0, SEEK_SET) != 0) {
do_debug(LOG_FATAL, "fseek error:%s", strerror(errno));
}
if (fclose(fptmp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
break;
}
if (k == 1) {
if (fclose(fp) < 0) {
do_debug(LOG_FATAL, "fclose error:%s", strerror(errno));
}
fp=fptmp;
continue;
}
if (k == 5 || k == 6) {
do_debug(LOG_FATAL, "log format error or find_offset_from_start have a bug. error code=%d\n", k);
}
}
}
if (k == 5 || k == 6) {
do_debug(LOG_FATAL, "log format error or find_offset_from_start have a bug. error code=%d\n", k);
}
/* get record */
if (!fgets(line, LEN_10240, fp)) {
do_debug(LOG_FATAL, "can't get enough log info\n");
}
/* read one line to init module parameter */
read_line_to_module_record(line);//读取一行数据到每个模块的mod->record
/* print header */
print_header();//打印头部信息
/* set struct module fields */
init_module_fields();
set_record_time(line);//更新conf.print_interval的间隔时间
return fp;
}
/*
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;
}
/*
* init_running_print, if sucess then return fp, else return NULL
*/
FILE *init_running_print()
{
int i=0,k=0;
FILE *fp,*fptmp;
char line[LEN_10240] = {0};
char filename[LEN_128] = {0};
/* will print tail*/
conf.print_tail = 1;
fp = fopen(conf.output_file_path, "r");
if (!fp){
do_debug(LOG_FATAL, "unable to open the log file %s\n",conf.output_file_path);
}
/*log number to use for print*/
conf.print_file_number = -1;
/* find start offset will print from tsar.data */
k=find_offset_from_start(fp,i);
if(k==1){
/*find all possible record*/
for(i=1;;i++){
memset(filename,0,sizeof(filename));
sprintf(filename,"%s.%d",conf.output_file_path,i);
fptmp = fopen(filename, "r");
if(!fptmp){
conf.print_file_number = i - 1;
break;
}
k=find_offset_from_start(fptmp,i);
if(k==0 || k==4){
fclose(fp);
fp=fptmp;
break;
}
if(k==2){
fseek(fp,0,SEEK_SET);
fclose(fptmp);
break;
}
if(k==1){
fclose(fp);
fp=fptmp;
continue;
}
if(k==5 || k==6){
do_debug(LOG_FATAL, "log format error or find_offset_from_start have a bug. error code=%d\n",k);
}
}
}
if(k==5 || k==6){
do_debug(LOG_FATAL, "log format error or find_offset_from_start have a bug. error code=%d\n",k);
}
/* get record */
if (!fgets(line, LEN_10240, fp)) {
do_debug(LOG_FATAL, "can't get enough log info\n");
}
/* read one line to init module parameter */
read_line_to_module_record(line);
/* print header */
print_header();
/* set struct module fields */
init_module_fields();
set_record_time(line);
return fp;
}
int get_st_array_from_file()
{
struct module *mod;
int i, ret;
char pre_line[LEN_4096] = {0};
char line[LEN_4096] = {0};
char detail[LEN_1024] = {0};
char pre_time[32] = {0};
char *s_token;
FILE *fp;
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);
}
}
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_4096, fp)) {
fclose(fp);
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 - strtol(pre_time,NULL,0)))
goto out;
/* read pre_line to mod->record and store to pre_array */
read_line_to_module_record(pre_line);
init_module_fields();
if(collect_record_stat() == 0)
do_debug(LOG_INFO, "collect_record_stat warn\n");
/* read cur_line and stats operation */
read_line_to_module_record(line);
if(collect_record_stat() == 0)
do_debug(LOG_INFO, "collect_record_stat warn\n");
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_WARN, "write line error\n");
fclose(fp);
if(chmod(PRE_RECORD_FILE, 0666) < 0)
do_debug(LOG_WARN, "chmod file %s error\n",PRE_RECORD_FILE);
}
return ret;
}