acquire-core-full/app/batch/mg_bt_0008.pgc

/* @tier medium @module mg @transform msg-gateway-batch */
/*
 * mg_bt_0008.pgc - 채널 세션 만료 정리 배치  [tier=medium]
 *
 * 채널 세션(mg_chan) 중 마지막 활동시각(last_ts)이 유휴 임계(기본
 * 900초)를 초과한 세션을 커서로 순회하며 raw SQL UPDATE 로 세션을
 * 종료(sess_st='C') 처리한다. 정리 세션수/유지 세션수를 리포트한다.
 *
 * 실행:  mg_bt_0008 <YYYYMMDD> [db@host]
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "acq_util.h"
#include "mg_core.h"

EXEC SQL INCLUDE sqlca;

#define MG_SESS_IDLE_SEC 900   /* 세션 유휴 만료 임계(초) */

static int run_mg_bt_0008(const char *biz_date)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_chan_cd[8];
    long h_sess_id;
    long h_idle;
    int  h_idle_max;
    EXEC SQL END DECLARE SECTION;

    long total = 0, closed = 0, errcnt = 0;
    long longest = 0;

    h_idle_max = MG_SESS_IDLE_SEC;

    EXEC SQL DECLARE cur_mg_bt_0008 CURSOR FOR
        SELECT chan_cd, sess_id,
               CAST(EXTRACT(EPOCH FROM (now() - last_ts)) AS bigint)
          FROM mg_chan
         WHERE sess_st = 'A'
           AND EXTRACT(EPOCH FROM (now() - last_ts)) >= :h_idle_max
         ORDER BY chan_cd, sess_id;

    EXEC SQL OPEN cur_mg_bt_0008;
    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("OPEN cur_mg_bt_0008");
        return TX_EDB;
    }

    if (tx_begin() != TX_OK)
        tx_log(TX_LOG_WARN, "[mg_bt_0008] tx_begin 경고");

    for (;;) {
        EXEC SQL FETCH cur_mg_bt_0008 INTO :h_chan_cd, :h_sess_id, :h_idle;

        if (sqlca.sqlcode == TX_SQL_NOTFOUND)
            break;
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("FETCH cur_mg_bt_0008");
            errcnt++;
            break;
        }

        total++;
        if (h_idle > longest)
            longest = h_idle;

        EXEC SQL UPDATE mg_chan
                    SET sess_st = 'C', close_ts = now()
                  WHERE sess_id = :h_sess_id;
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("UPDATE mg_chan close");
            errcnt++;
        } else {
            closed++;
            tx_log(TX_LOG_DEBUG, "[mg_bt_0008] 세션종료 chan=%s sess=%ld idle=%lds",
                   h_chan_cd, h_sess_id, h_idle);
        }
    }

    EXEC SQL CLOSE cur_mg_bt_0008;

    if (errcnt == 0)
        tx_commit();
    else
        tx_abort();

    tx_log(TX_LOG_INFO, "[mg_bt_0008] 세션정리 date=%s 종료=%ld 오류=%ld",
           biz_date, closed, errcnt);

    printf("========== 세션 만료 정리 [mg_bt_0008] ==========\n");
    printf("  기준일        : %s\n", biz_date);
    printf("  유휴 임계(초) : %d\n", MG_SESS_IDLE_SEC);
    printf("  만료 대상     : %ld\n", total);
    printf("  종료 세션     : %ld\n", closed);
    printf("  최장 유휴(초) : %ld\n", longest);
    printf("  오류 건수     : %ld\n", errcnt);
    printf("=============================================\n");

    return (errcnt == 0) ? TX_OK : TX_FAIL;
}

int main(int argc, char **argv)
{
    const char *biz_date;
    const char *target;
    int rc;

    tx_set_loglevel(TX_LOG_INFO);

    if (argc < 2) {
        fprintf(stderr, "사용법: %s <YYYYMMDD> [db@host]\n", argv[0]);
        return 2;
    }
    biz_date = argv[1];
    target   = (argc >= 3) ? argv[2] : NULL;

    if (!date_is_valid(biz_date)) {
        fprintf(stderr, "오류: 유효하지 않은 영업일 '%s'\n", biz_date);
        return 2;
    }

    tx_log(TX_LOG_INFO, "[mg_bt_0008] 세션 만료 정리 시작 date=%s", biz_date);

    rc = mg_dbio_connect(target);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[mg_bt_0008] DB 접속 실패 rc=%d", rc);
        return 1;
    }

    rc = run_mg_bt_0008(biz_date);

    mg_dbio_disconnect();

    tx_log(TX_LOG_INFO, "[mg_bt_0008] 배치 종료 rc=%d(%s)", rc, tx_strerror(rc));
    return (rc == TX_OK) ? 0 : 1;
}