/* Processed by ecpg (15.18 (Debian 15.18-0+deb12u1)) */ /* These include files are added by the preprocessor */ #include #include #include /* End of automatic include section */ #line 1 "app/online/lg_ol_0010.pgc" /* @tier easy @module lg @transform ledger-online */ /* * lg_ol_0010.pgc - 원장 온라인 서비스 (LG_OL_0010) [tier=easy] * * 원장 잔액 재계산: 단건 원장(KEY)의 거래금액을 기준으로 수수료를 * 다시 산정(fee = amount/100)해 UPDATE 하고, 순액(net = amount - fee) * 을 응답한다. 수수료율 변경이나 초기 적재 오류를 바로잡기 위한 * 재계산 서비스이다. * * TxCore TX_SERVICE 엔트리. 요청 TXBUF 를 검증하고 lg_ledger 에 * 직접 임베디드 SQL 을 수행한 뒤 응답 TXBUF 를 구성한다. */ #include #include #include "txcore.h" #include "txcore_dbio.h" #include "acq_util.h" #include "lg_core.h" #line 1 "/usr/include/postgresql/sqlca.h" #ifndef POSTGRES_SQLCA_H #define POSTGRES_SQLCA_H #ifndef PGDLLIMPORT #if defined(WIN32) || defined(__CYGWIN__) #define PGDLLIMPORT __declspec (dllimport) #else #define PGDLLIMPORT #endif /* __CYGWIN__ */ #endif /* PGDLLIMPORT */ #define SQLERRMC_LEN 150 #ifdef __cplusplus extern "C" { #endif struct sqlca_t { char sqlcaid[8]; long sqlabc; long sqlcode; struct { int sqlerrml; char sqlerrmc[SQLERRMC_LEN]; } sqlerrm; char sqlerrp[8]; long sqlerrd[6]; /* Element 0: empty */ /* 1: OID of processed tuple if applicable */ /* 2: number of rows processed */ /* after an INSERT, UPDATE or */ /* DELETE statement */ /* 3: empty */ /* 4: empty */ /* 5: empty */ char sqlwarn[8]; /* Element 0: set to 'W' if at least one other is 'W' */ /* 1: if 'W' at least one character string */ /* value was truncated when it was */ /* stored into a host variable. */ /* * 2: if 'W' a (hopefully) non-fatal notice occurred */ /* 3: empty */ /* 4: empty */ /* 5: empty */ /* 6: empty */ /* 7: empty */ char sqlstate[5]; }; struct sqlca_t *ECPGget_sqlca(void); #ifndef POSTGRES_ECPG_INTERNAL #define sqlca (*ECPGget_sqlca()) #endif #ifdef __cplusplus } #endif #endif #line 21 "app/online/lg_ol_0010.pgc" TX_SERVICE(LG_OL_0010, ctx) { /* exec sql begin declare section */ #line 26 "app/online/lg_ol_0010.pgc" char h_key [ 16 ] ; #line 27 "app/online/lg_ol_0010.pgc" long h_amount ; #line 28 "app/online/lg_ol_0010.pgc" long h_old_fee ; #line 29 "app/online/lg_ol_0010.pgc" long h_new_fee ; /* exec sql end declare section */ #line 30 "app/online/lg_ol_0010.pgc" char key[16]; long net = 0; tx_log(TX_LOG_INFO, "[LG_OL_0010] 원장 잔액 재계산 서비스 진입"); /* ---- 1. 요청 필드 수신 및 검증 ---- */ if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK || key[0] == '\0') { tx_log(TX_LOG_ERROR, "[LG_OL_0010] KEY 누락"); tx_buf_reset(ctx->out); tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID); tx_return(ctx, TX_EINVAL, ctx->out); return; } strncpy(h_key, key, sizeof(h_key) - 1); h_key[sizeof(h_key) - 1] = '\0'; /* ---- 2. 현재 금액/수수료 조회 ---- */ { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "select amount , fee from lg_ledger where key = $1 ", ECPGt_char,(h_key),(long)16,(long)1,(16)*sizeof(char), ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, ECPGt_long,&(h_amount),(long)1,(long)1,sizeof(long), ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_long,&(h_old_fee),(long)1,(long)1,sizeof(long), ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EORT);} #line 53 "app/online/lg_ol_0010.pgc" if (sqlca.sqlcode == TX_SQL_NOTFOUND) { tx_log(TX_LOG_WARN, "[LG_OL_0010] 재계산 대상 없음 key=%s", key); tx_buf_reset(ctx->out); tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID); tx_return(ctx, TX_ENOENT, ctx->out); return; } if (sqlca.sqlcode != TX_SQL_OK) { TX_DBIO_LOG_ERR("LG_OL_0010 select"); tx_buf_reset(ctx->out); tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR); tx_return(ctx, TX_EDB, ctx->out); return; } /* 재산정 수수료 (금액 부호를 따라감) */ h_new_fee = h_amount / 100; net = h_amount - h_new_fee; tx_log(TX_LOG_INFO, "[LG_OL_0010] 재계산 key=%s 금액=%ld 수수료 %ld→%ld 순액=%ld", key, h_amount, h_old_fee, h_new_fee, net); /* ---- 3. 트랜잭션 시작 → 수수료 재산정 UPDATE ---- */ if (tx_begin() != TX_OK) { tx_log(TX_LOG_ERROR, "[LG_OL_0010] 트랜잭션 시작 실패"); tx_buf_reset(ctx->out); tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR); tx_return(ctx, TX_FAIL, ctx->out); return; } { ECPGdo(__LINE__, 0, 1, NULL, 0, ECPGst_normal, "update lg_ledger set fee = $1 , upd_ts = now ( ) where key = $2 ", ECPGt_long,&(h_new_fee),(long)1,(long)1,sizeof(long), ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_char,(h_key),(long)16,(long)1,(16)*sizeof(char), ECPGt_NO_INDICATOR, NULL , 0L, 0L, 0L, ECPGt_EOIT, ECPGt_EORT);} #line 88 "app/online/lg_ol_0010.pgc" if (sqlca.sqlcode != TX_SQL_OK) { TX_DBIO_LOG_ERR("LG_OL_0010 update"); tx_abort(); tx_buf_reset(ctx->out); tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR); tx_return(ctx, TX_EDB, ctx->out); return; } if (sqlca.sqlerrd[2] == 0) { tx_log(TX_LOG_WARN, "[LG_OL_0010] 재계산 반영 0건 key=%s", key); tx_abort(); tx_buf_reset(ctx->out); tx_buf_sets(ctx->out, "RESPCODE", RESP_INVALID); tx_return(ctx, TX_ENOENT, ctx->out); return; } if (tx_commit() != TX_OK) { tx_log(TX_LOG_ERROR, "[LG_OL_0010] 커밋 실패 key=%s", key); tx_abort(); tx_buf_reset(ctx->out); tx_buf_sets(ctx->out, "RESPCODE", RESP_SYSERR); tx_return(ctx, TX_FAIL, ctx->out); return; } /* ---- 4. 응답 구성 ---- */ tx_buf_reset(ctx->out); tx_buf_sets(ctx->out, "RESPCODE", RESP_OK); tx_buf_sets(ctx->out, "KEY", key); tx_buf_setlong(ctx->out, "AMOUNT", h_amount); tx_buf_setlong(ctx->out, "OLDFEE", h_old_fee); tx_buf_setlong(ctx->out, "NEWFEE", h_new_fee); tx_buf_setlong(ctx->out, "NETAMT", net); tx_log(TX_LOG_INFO, "[LG_OL_0010] 원장 잔액 재계산 완료 key=%s 순액=%ld", key, net); tx_return(ctx, TX_OK, ctx->out); }