fix: demoapi coverity scan issues and lint warnings (#17371)
* fix: demoapi.c coverity scan issues * fix: coverity scan issue and lint warnings
This commit is contained in:
Shuduo Sang
GitHub
parent
0a0f67c872
commit
9781c1c2d2
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@ -1,5 +1,17 @@
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// C api call sequence demo
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// to compile: gcc -o apidemo apidemo.c -ltaos
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/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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@ -13,23 +25,23 @@
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#include "taos.h"
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#define debugPrint(fmt, ...) \
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do { if (g_args.debug_print || g_args.verbose_print) \
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fprintf(stdout, "DEBG: "fmt, __VA_ARGS__); } while(0)
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do { if (g_args.debug_print || g_args.verbose_print) {\
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fprintf(stdout, "DEBG: "fmt, __VA_ARGS__); }} while (0)
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#define warnPrint(fmt, ...) \
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do { fprintf(stderr, "\033[33m"); \
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fprintf(stderr, "WARN: "fmt, __VA_ARGS__); \
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fprintf(stderr, "\033[0m"); } while(0)
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fprintf(stderr, "\033[0m"); } while (0)
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#define errorPrint(fmt, ...) \
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do { fprintf(stderr, "\033[31m"); \
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fprintf(stderr, "ERROR: "fmt, __VA_ARGS__); \
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fprintf(stderr, "\033[0m"); } while(0)
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fprintf(stderr, "\033[0m"); } while (0)
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#define okPrint(fmt, ...) \
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do { fprintf(stderr, "\033[32m"); \
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fprintf(stderr, "OK: "fmt, __VA_ARGS__); \
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fprintf(stderr, "\033[0m"); } while(0)
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fprintf(stderr, "\033[0m"); } while (0)
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int64_t g_num_of_tb = 2;
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int64_t g_num_of_rec = 3;
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@ -75,14 +87,15 @@ static void prepare_data(TAOS* taos) {
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taos_free_result(res);
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taosMsleep(100);
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if (taos_select_db(taos, "test")) {
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errorPrint("%s() LN%d: error no: %d, reason: %s\n",
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__func__, __LINE__, taos_errno(res), taos_errstr(res));
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taos_free_result(res);
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errorPrint("%s() LN%d: taos_select_db() failed\n",
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__func__, __LINE__);
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return;
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}
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char command[1024] = {0};
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sprintf(command, "%s", "create table meters(ts timestamp, f float, n int, bin1 binary(20), c nchar(20), bin2 binary(20)) tags(area int, city binary(20), dist nchar(20), street binary(20));");
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sprintf(command, "%s", "create table meters(ts timestamp, f float, n int, "
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"bin1 binary(20), c nchar(20), bin2 binary(20)) tags(area int, "
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"city binary(20), dist nchar(20), street binary(20));");
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res = taos_query(taos, command);
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if ((res) && (0 == taos_errno(res))) {
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okPrint("%s created\n", "meters");
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@ -122,12 +135,11 @@ static void prepare_data(TAOS* taos) {
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sprintf(command, "insert into t%"PRId64" "
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"values(%" PRId64 ", %f, %"PRId64", "
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"'%c%d', '%s%c%d', '%c%d')",
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i, 1650000000000+j, (float)j, j,
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i, 1650000000000+j, j * 1.0, j,
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'a'+(int)j%25, rand(),
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// "涛思", 'z' - (int)j%25, rand(),
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"TAOS", 'z' - (int)j%25, rand(),
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'b' - (int)j%25, rand()
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);
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'b' - (int)j%25, rand());
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res = taos_query(taos, command);
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if ((res) && (0 == taos_errno(res))) {
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affected = taos_affected_rows(res);
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@ -155,8 +167,7 @@ static void prepare_data(TAOS* taos) {
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i, 1650000000000+j+1, (float)j, j,
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'a'+(int)j%25, rand(),
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"数据", 'z' - (int)j%25, rand(),
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'b' - (int)j%25, rand()
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);
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'b' - (int)j%25, rand());
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res = taos_query(taos, command);
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if ((res) && (0 == taos_errno(res))) {
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affected = taos_affected_rows(res);
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@ -184,7 +195,8 @@ static int print_result(char *tbname, TAOS_RES* res, int block) {
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}
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if (block) {
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warnPrint("%s", "call taos_fetch_block(), don't call taos_fetch_lengths()\n");
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warnPrint("%s", "call taos_fetch_block(), "
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"don't call taos_fetch_lengths()\n");
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int rows = 0;
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while ((rows = taos_fetch_block(res, &row))) {
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int *lengths = taos_fetch_lengths(res);
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@ -195,7 +207,7 @@ static int print_result(char *tbname, TAOS_RES* res, int block) {
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printf("col%d type is %d, no need get offset\n",
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f, fields[f].type);
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for (int64_t c = 0; c < rows; c++) {
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switch(fields[f].type) {
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switch (fields[f].type) {
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case TSDB_DATA_TYPE_TIMESTAMP:
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if (taos_is_null(res, c, f)) {
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printf("col%d, row: %"PRId64" "
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@ -204,7 +216,8 @@ static int print_result(char *tbname, TAOS_RES* res, int block) {
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printf("col%d, row: %"PRId64", "
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"value: %"PRId64"\n",
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f, c,
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*(int64_t*)((char*)(row[f])+c*sizeof(int64_t)));
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*(int64_t*)((char*)(row[f])
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+c*sizeof(int64_t)));
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}
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break;
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@ -216,7 +229,8 @@ static int print_result(char *tbname, TAOS_RES* res, int block) {
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printf("col%d, row: %"PRId64", "
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"value: %d\n",
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f, c,
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*(int32_t*)((char*)(row[f])+c*sizeof(int32_t)));
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*(int32_t*)((char*)(row[f])
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+c*sizeof(int32_t)));
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}
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break;
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@ -228,7 +242,8 @@ static int print_result(char *tbname, TAOS_RES* res, int block) {
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printf("col%d, row: %"PRId64", "
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"value: %f\n",
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f, c,
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*(float*)((char*)(row[f])+c*sizeof(float)));
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*(float*)((char*)(row[f])
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+c*sizeof(float)));
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}
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break;
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@ -243,14 +258,18 @@ static int print_result(char *tbname, TAOS_RES* res, int block) {
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if (offsets) {
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for (int c = 0; c < rows; c++) {
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if (offsets[c] != -1) {
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int length = *(int16_t*)((char*)(row[f]) + offsets[c]);
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int length = *(int16_t*)((char*)(row[f])
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+ offsets[c]);
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char *buf = calloc(1, length + 1);
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strncpy(buf, (char *)((char*)(row[f]) + offsets[c] + 2), length);
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printf("row: %d, col: %d, offset: %d, length: %d, content: %s\n",
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strncpy(buf, (char *)((char*)(row[f])
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+ offsets[c] + 2), length);
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printf("row: %d, col: %d, offset: %d, "
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"length: %d, content: %s\n",
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c, f, offsets[c], length, buf);
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free(buf);
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} else {
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printf("row: %d, col: %d, offset: -1, means content is NULL\n",
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printf("row: %d, col: %d, offset: -1, "
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"means content is NULL\n",
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c, f);
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}
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}
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@ -272,7 +291,8 @@ static int print_result(char *tbname, TAOS_RES* res, int block) {
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int* lengths = taos_fetch_lengths(res);
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if (lengths) {
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for (int c = 0; c < num_fields; c++) {
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printf("row: %"PRId64", col: %d, is_null: %s, length of column %d is %d\n",
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printf("row: %"PRId64", col: %d, is_null: %s, "
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"length of column %d is %d\n",
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num_rows, c,
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taos_is_null(res, num_rows, c)?"True":"False",
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c, lengths[c]);
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@ -282,7 +302,7 @@ static int print_result(char *tbname, TAOS_RES* res, int block) {
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__func__, __LINE__, tbname);
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}
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num_rows ++;
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num_rows++;
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}
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}
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@ -327,7 +347,8 @@ int main(int argc, char *argv[]) {
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#endif
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TAOS* taos = taos_connect(host, user, passwd, "", 0);
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if (taos == NULL) {
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printf("\033[31mfailed to connect to db, reason:%s\033[0m\n", taos_errstr(taos));
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printf("\033[31mfailed to connect to db, reason:%s\033[0m\n",
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taos_errstr(taos));
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exit(1);
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}
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