提交 8b146842 编写于 作者: F freemine

Merge branch 'odbc-win' into odbc

......@@ -17,6 +17,8 @@ IF (TD_LINUX_64)
if(NOT FLEX_FOUND)
message(FATAL_ERROR "you need to install flex first")
else ()
SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wconversion")
SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -Wconversion")
ADD_SUBDIRECTORY(src)
ADD_SUBDIRECTORY(tests)
endif()
......@@ -26,3 +28,20 @@ IF (TD_LINUX_64)
ENDIF ()
ENDIF ()
IF (TD_WINDOWS_64)
find_package(ODBC)
if (NOT ODBC_FOUND)
message(FATAL_ERROR "you need to install ODBC first")
else ()
message(STATUS "ODBC_INCLUDE_DIRS: ${ODBC_INCLUDE_DIRS}")
message(STATUS "ODBC_LIBRARIES: ${ODBC_LIBRARIES}")
message(STATUS "ODBC_CONFIG: ${ODBC_CONFIG}")
endif ()
find_package(FLEX)
if(NOT FLEX_FOUND)
message(FATAL_ERROR "you need to install flex first")
else ()
ADD_SUBDIRECTORY(src)
ADD_SUBDIRECTORY(tests)
endif()
ENDIF ()
......@@ -16,9 +16,35 @@ IF (TD_LINUX_64)
SET_TARGET_PROPERTIES(todbc PROPERTIES CLEAN_DIRECT_OUTPUT 1)
SET_TARGET_PROPERTIES(todbc PROPERTIES VERSION ${TD_VER_NUMBER} SOVERSION 1)
TARGET_LINK_LIBRARIES(todbc taos)
target_include_directories(todbc PUBLIC
.)
target_include_directories(todbc PUBLIC .)
install(CODE "execute_process(COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/install.sh ${CMAKE_BINARY_DIR})")
ENDIF ()
IF (TD_WINDOWS_64)
FLEX_TARGET(todbcFlexScanner
todbc_scanner.l
${CMAKE_CURRENT_BINARY_DIR}/todbc_scanner.c
)
set(todbc_flex_scanner_src
${FLEX_todbcFlexScanner_OUTPUTS}
)
AUX_SOURCE_DIRECTORY(. SRC)
# generate dynamic library (*.dll)
ADD_LIBRARY(todbc SHARED
${SRC}
${todbc_flex_scanner_src}
${CMAKE_CURRENT_BINARY_DIR}/todbc.rc
todbc.def)
TARGET_LINK_LIBRARIES(todbc taos_static)
target_include_directories(todbc PUBLIC .)
target_compile_definitions(todbc PRIVATE "todbc_EXPORT")
CONFIGURE_FILE("todbc.rc.in"
"${CMAKE_CURRENT_BINARY_DIR}/todbc.rc")
SET_TARGET_PROPERTIES(todbc PROPERTIES LINK_FLAGS
/DEF:todbc.def)
SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /GL")
SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /GL")
ENDIF ()
......@@ -17,19 +17,17 @@
#define _XOPEN_SOURCE
#define _DEFAULT_SOURCE
#include "todbc_log.h"
#include "todbc_flex.h"
#include "taos.h"
#include "os.h"
#include "taoserror.h"
#include "todbc_util.h"
#include "todbc_conv.h"
#include <sql.h>
#include <sqlext.h>
#include <time.h>
#define GET_REF(obj) atomic_load_64(&obj->refcount)
#define INC_REF(obj) atomic_add_fetch_64(&obj->refcount, 1)
#define DEC_REF(obj) atomic_sub_fetch_64(&obj->refcount, 1)
......@@ -47,10 +45,10 @@ do {
basename((char*)__FILE__), __LINE__, \
##__VA_ARGS__); \
if (n<0) break; \
char *err_str = (char*)realloc(obj->err.err_str, n+1); \
char *err_str = (char*)realloc(obj->err.err_str, (size_t)n+1); \
if (!err_str) break; \
obj->err.err_str = err_str; \
snprintf(obj->err.err_str, n+1, "[TSDB:%x]%s: @%s[%d]" err_fmt "", \
snprintf(obj->err.err_str, (size_t)n+1, "[TSDB:%x]%s: @%s[%d]" err_fmt "", \
eno, estr, \
basename((char*)__FILE__), __LINE__, \
##__VA_ARGS__); \
......@@ -69,9 +67,9 @@ do {
size_t n = sizeof(obj->err.sql_state); \
if (Sqlstate) strncpy((char*)Sqlstate, (char*)obj->err.sql_state, n); \
if (NativeError) *NativeError = obj->err.err_no; \
snprintf((char*)MessageText, BufferLength, "%s", obj->err.err_str); \
if (TextLength && obj->err.err_str) *TextLength = strlen(obj->err.err_str); \
if (TextLength && obj->err.err_str) *TextLength = utf8_chars(obj->err.err_str); \
snprintf((char*)MessageText, (size_t)BufferLength, "%s", obj->err.err_str); \
if (TextLength && obj->err.err_str) *TextLength = (SQLSMALLINT)strlen(obj->err.err_str); \
if (TextLength && obj->err.err_str) *TextLength = (SQLSMALLINT)utf8_chars(obj->err.err_str); \
} while (0)
#define FREE_ERROR(obj) \
......@@ -94,7 +92,7 @@ do {
SET_ERROR(obj, sqlstate, TSDB_CODE_QRY_INVALID_QHANDLE, err_fmt, ##__VA_ARGS__); \
} while (0);
#define SDUP(s,n) (s ? (s[n] ? (const char*)strndup((const char*)s,n) : (const char*)s) : strdup(""))
#define SDUP(s,n) (s ? (s[(size_t)n] ? (const char*)strndup((const char*)s,(size_t)n) : (const char*)s) : strdup(""))
#define SFRE(x,s,n) \
do { \
if (x==(const char*)s) break; \
......@@ -145,7 +143,7 @@ do { \
gettimeofday(&tv1, NULL); \
double delta = difftime(tv1.tv_sec, tv0.tv_sec); \
delta *= 1000000; \
delta += (tv1.tv_usec-tv0.tv_usec); \
delta += (double)(tv1.tv_usec-tv0.tv_usec); \
delta /= 1000000; \
D("%s: elapsed: [%.6f]s", #statement, delta); \
} while (0)
......@@ -259,7 +257,7 @@ struct c_target_s {
static pthread_once_t init_once = PTHREAD_ONCE_INIT;
static void init_routine(void);
static int do_field_display_size(TAOS_FIELD *field);
static size_t do_field_display_size(TAOS_FIELD *field);
static iconv_t sql_get_w2c(sql_t *sql) {
if (sql->w2c == (iconv_t)-1) {
sql->w2c = iconv_open("UTF-8", "UCS-2LE");
......@@ -416,9 +414,9 @@ static SQLRETURN doSQLConnect(SQLHDBC ConnectionHandle,
return SQL_ERROR;
}
NameLength1 = (NameLength1==SQL_NTS) ? strlen((const char*)ServerName) : NameLength1;
NameLength2 = (NameLength2==SQL_NTS) ? strlen((const char*)UserName) : NameLength2;
NameLength3 = (NameLength3==SQL_NTS) ? strlen((const char*)Authentication) : NameLength3;
NameLength1 = (NameLength1==SQL_NTS) ? (SQLSMALLINT)strlen((const char*)ServerName) : NameLength1;
NameLength2 = (NameLength2==SQL_NTS) ? (SQLSMALLINT)strlen((const char*)UserName) : NameLength2;
NameLength3 = (NameLength3==SQL_NTS) ? (SQLSMALLINT)strlen((const char*)Authentication) : NameLength3;
if (NameLength1 < 0 || NameLength2 < 0 || NameLength3 < 0) {
SET_ERROR(conn, "HY090", TSDB_CODE_ODBC_BAD_ARG, "");
......@@ -678,8 +676,8 @@ SQLRETURN SQL_API SQLExecDirect(SQLHSTMT StatementHandle,
SQLRETURN SQL_API SQLExecDirectW(SQLHSTMT hstmt, SQLWCHAR *szSqlStr, SQLINTEGER cbSqlStr)
{
size_t bytes = 0;
SQLCHAR *utf8 = wchars_to_chars(szSqlStr, cbSqlStr, &bytes);
SQLRETURN r = SQLExecDirect(hstmt, utf8, bytes);
SQLCHAR *utf8 = wchars_to_chars(szSqlStr, (size_t)cbSqlStr, &bytes);
SQLRETURN r = SQLExecDirect(hstmt, utf8, (SQLINTEGER)bytes);
if (utf8) free(utf8);
return r;
}
......@@ -707,7 +705,7 @@ static SQLRETURN doSQLNumResultCols(SQLHSTMT StatementHandle,
int fields = taos_field_count(sql->rs);
if (ColumnCount) {
*ColumnCount = fields;
*ColumnCount = (SQLSMALLINT)fields;
}
return SQL_SUCCESS;
......@@ -788,11 +786,11 @@ static SQLRETURN doSQLColAttribute(SQLHSTMT StatementHandle,
switch (FieldIdentifier) {
case SQL_COLUMN_DISPLAY_SIZE: {
*NumericAttribute = do_field_display_size(field);
*NumericAttribute = (SQLLEN)do_field_display_size(field);
} break;
case SQL_COLUMN_LABEL: {
size_t n = sizeof(field->name);
strncpy(CharacterAttribute, field->name, (n>BufferLength ? BufferLength : n));
strncpy(CharacterAttribute, field->name, (n>BufferLength ? (size_t)BufferLength : n));
} break;
case SQL_COLUMN_UNSIGNED: {
*NumericAttribute = SQL_FALSE;
......@@ -910,7 +908,7 @@ static SQLRETURN doSQLGetData(SQLHSTMT StatementHandle,
CHK_CONV(0, tsdb_int64_to_double(v, TargetValue));
} break;
case SQL_C_CHAR: {
CHK_CONV(0, tsdb_int64_to_char(v, TargetValue, BufferLength));
CHK_CONV(0, tsdb_int64_to_char(v, TargetValue, (size_t)BufferLength));
} break;
default: {
SET_ERROR(sql, "HYC00", TSDB_CODE_ODBC_NOT_SUPPORT,
......@@ -932,7 +930,7 @@ static SQLRETURN doSQLGetData(SQLHSTMT StatementHandle,
return SQL_SUCCESS;
} break;
case SQL_C_CHAR: {
CHK_CONV(0, tsdb_double_to_char(v, TargetValue, BufferLength));
CHK_CONV(0, tsdb_double_to_char(v, TargetValue, (size_t)BufferLength));
} break;
default: {
SET_ERROR(sql, "HYC00", TSDB_CODE_ODBC_NOT_SUPPORT,
......@@ -950,7 +948,7 @@ static SQLRETURN doSQLGetData(SQLHSTMT StatementHandle,
return SQL_SUCCESS;
} break;
case SQL_C_CHAR: {
CHK_CONV(0, tsdb_double_to_char(v, TargetValue, BufferLength));
CHK_CONV(0, tsdb_double_to_char(v, TargetValue, (size_t)BufferLength));
} break;
default: {
SET_ERROR(sql, "HYC00", TSDB_CODE_ODBC_NOT_SUPPORT,
......@@ -964,22 +962,22 @@ static SQLRETURN doSQLGetData(SQLHSTMT StatementHandle,
SQL_TIMESTAMP_STRUCT ts = {0};
int64_t v = *(int64_t*)row;
time_t t = v/1000;
struct tm tm = {0};
localtime_r(&t, &tm);
ts.year = tm.tm_year + 1900;
ts.month = tm.tm_mon + 1;
ts.day = tm.tm_mday;
ts.hour = tm.tm_hour;
ts.minute = tm.tm_min;
ts.second = tm.tm_sec;
ts.fraction = v%1000 * 1000000;
struct tm vtm = {0};
localtime_r(&t, &vtm);
ts.year = (SQLSMALLINT)(vtm.tm_year + 1900);
ts.month = (SQLUSMALLINT)(vtm.tm_mon + 1);
ts.day = (SQLUSMALLINT)(vtm.tm_mday);
ts.hour = (SQLUSMALLINT)(vtm.tm_hour);
ts.minute = (SQLUSMALLINT)(vtm.tm_min);
ts.second = (SQLUSMALLINT)(vtm.tm_sec);
ts.fraction = (SQLUINTEGER)(v%1000 * 1000000);
switch (target.ct) {
case SQL_C_SBIGINT: {
*(int64_t*)TargetValue = v;
return SQL_SUCCESS;
} break;
case SQL_C_CHAR: {
CHK_CONV(0, tsdb_timestamp_to_char(ts, TargetValue, BufferLength));
CHK_CONV(0, tsdb_timestamp_to_char(ts, TargetValue, (size_t)BufferLength));
} break;
case SQL_C_TYPE_TIMESTAMP:
case SQL_C_TIMESTAMP: {
......@@ -995,11 +993,11 @@ static SQLRETURN doSQLGetData(SQLHSTMT StatementHandle,
}
} break;
case TSDB_DATA_TYPE_BINARY: {
size_t field_bytes = field->bytes;
size_t field_bytes = (size_t)field->bytes;
field_bytes -= VARSTR_HEADER_SIZE;
switch (target.ct) {
case SQL_C_CHAR: {
CHK_CONV(0, tsdb_chars_to_char((const char*)row, field_bytes, TargetValue, BufferLength));
CHK_CONV(0, tsdb_chars_to_char((const char*)row, field_bytes, TargetValue, (size_t)BufferLength));
} break;
default: {
SET_ERROR(sql, "HYC00", TSDB_CODE_ODBC_NOT_SUPPORT,
......@@ -1010,11 +1008,11 @@ static SQLRETURN doSQLGetData(SQLHSTMT StatementHandle,
}
} break;
case TSDB_DATA_TYPE_NCHAR: {
size_t field_bytes = field->bytes;
size_t field_bytes = (size_t)field->bytes;
field_bytes -= VARSTR_HEADER_SIZE;
switch (target.ct) {
case SQL_C_CHAR: {
CHK_CONV(0, tsdb_chars_to_char((const char*)row, field_bytes, TargetValue, BufferLength));
CHK_CONV(0, tsdb_chars_to_char((const char*)row, field_bytes, TargetValue, (size_t)BufferLength));
} break;
default: {
SET_ERROR(sql, "HYC00", TSDB_CODE_ODBC_NOT_SUPPORT,
......@@ -1106,7 +1104,7 @@ static SQLRETURN doSQLPrepare(SQLHSTMT StatementHandle,
int ok = 0;
do {
int r = taos_stmt_prepare(sql->stmt, (const char *)StatementText, TextLength);
int r = taos_stmt_prepare(sql->stmt, (const char *)StatementText, (unsigned long)TextLength);
if (r) {
SET_ERROR(sql, "HY000", r, "failed to prepare a TAOS statement");
break;
......@@ -1130,7 +1128,7 @@ static SQLRETURN doSQLPrepare(SQLHSTMT StatementHandle,
DASSERT(params>=0);
if (params>0) {
param_bind_t *ar = (param_bind_t*)calloc(1, params * sizeof(*ar));
param_bind_t *ar = (param_bind_t*)calloc(1, ((size_t)params) * sizeof(*ar));
if (!ar) {
SET_ERROR(sql, "HY001", TSDB_CODE_ODBC_OOM, "");
break;
......@@ -1173,11 +1171,11 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
return SQL_ERROR;
}
SQLPOINTER paramValue = param->ParameterValue;
unsigned char *paramValue = param->ParameterValue;
SQLSMALLINT valueType = param->ValueType;
SQLLEN *soi = param->StrLen_or_Ind;
size_t offset = idx_row * sql->rowlen + sql->ptr_offset;
size_t offset = ((size_t)idx_row) * sql->rowlen + sql->ptr_offset;
if (paramValue) paramValue += offset;
if (soi) soi = (SQLLEN*)((char*)soi + offset);
......@@ -1271,10 +1269,10 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
CHK_CONV(1, tsdb_double_to_bit(*(double*)paramValue, &bind->u.b));
} break;
case SQL_C_CHAR: {
CHK_CONV(1, tsdb_chars_to_bit((const char *)paramValue, *soi, &bind->u.b));
CHK_CONV(1, tsdb_chars_to_bit((const char *)paramValue, (size_t)*soi, &bind->u.b));
} break;
case SQL_C_WCHAR: {
CHK_CONV(1, tsdb_wchars_to_bit(sql_get_w2c(sql), (const unsigned char*)paramValue, *soi, &bind->u.b));
CHK_CONV(1, tsdb_wchars_to_bit(sql_get_w2c(sql), (const unsigned char*)paramValue, (size_t)*soi, &bind->u.b));
} break;
case SQL_C_USHORT:
case SQL_C_ULONG:
......@@ -1323,10 +1321,10 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
CHK_CONV(1, tsdb_int64_to_tinyint(*(int64_t*)paramValue, &bind->u.v1));
} break;
case SQL_C_CHAR: {
CHK_CONV(1, tsdb_chars_to_tinyint((const char*)paramValue, *soi, &bind->u.v1));
CHK_CONV(1, tsdb_chars_to_tinyint((const char*)paramValue, (size_t)*soi, &bind->u.v1));
} break;
case SQL_C_WCHAR: {
CHK_CONV(1, tsdb_wchars_to_tinyint(sql_get_w2c(sql), (const unsigned char*)paramValue, *soi, &bind->u.v1));
CHK_CONV(1, tsdb_wchars_to_tinyint(sql_get_w2c(sql), (const unsigned char*)paramValue, (size_t)*soi, &bind->u.v1));
} break;
case SQL_C_USHORT:
case SQL_C_ULONG:
......@@ -1377,10 +1375,10 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
CHK_CONV(1, tsdb_int64_to_smallint(*(int64_t*)paramValue, &bind->u.v2));
} break;
case SQL_C_CHAR: {
CHK_CONV(1, tsdb_chars_to_smallint((const char*)paramValue, *soi, &bind->u.v2));
CHK_CONV(1, tsdb_chars_to_smallint((const char*)paramValue, (size_t)*soi, &bind->u.v2));
} break;
case SQL_C_WCHAR: {
CHK_CONV(1, tsdb_wchars_to_smallint(sql_get_w2c(sql), (const unsigned char*)paramValue, *soi, &bind->u.v2));
CHK_CONV(1, tsdb_wchars_to_smallint(sql_get_w2c(sql), (const unsigned char*)paramValue, (size_t)*soi, &bind->u.v2));
} break;
case SQL_C_USHORT:
case SQL_C_ULONG:
......@@ -1431,10 +1429,10 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
CHK_CONV(1, tsdb_int64_to_int(*(int64_t*)paramValue, &bind->u.v4));
} break;
case SQL_C_CHAR: {
CHK_CONV(1, tsdb_chars_to_int((const char*)paramValue, *soi, &bind->u.v4));
CHK_CONV(1, tsdb_chars_to_int((const char*)paramValue, (size_t)*soi, &bind->u.v4));
} break;
case SQL_C_WCHAR: {
CHK_CONV(1, tsdb_wchars_to_int(sql_get_w2c(sql), (const unsigned char*)paramValue, *soi, &bind->u.v4));
CHK_CONV(1, tsdb_wchars_to_int(sql_get_w2c(sql), (const unsigned char*)paramValue, (size_t)*soi, &bind->u.v4));
} break;
case SQL_C_USHORT:
case SQL_C_ULONG:
......@@ -1485,10 +1483,10 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
CHK_CONV(1, tsdb_int64_to_bigint(*(int64_t*)paramValue, &bind->u.v8));
} break;
case SQL_C_CHAR: {
CHK_CONV(1, tsdb_chars_to_bigint((const char*)paramValue, *soi, &bind->u.v8));
CHK_CONV(1, tsdb_chars_to_bigint((const char*)paramValue, (size_t)*soi, &bind->u.v8));
} break;
case SQL_C_WCHAR: {
CHK_CONV(1, tsdb_wchars_to_bigint(sql_get_w2c(sql), (const unsigned char*)paramValue, *soi, &bind->u.v8));
CHK_CONV(1, tsdb_wchars_to_bigint(sql_get_w2c(sql), (const unsigned char*)paramValue, (size_t)*soi, &bind->u.v8));
} break;
case SQL_C_USHORT:
case SQL_C_ULONG:
......@@ -1545,10 +1543,10 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
bind->u.f4 = (float)*(double*)paramValue;
} break;
case SQL_C_CHAR: {
CHK_CONV(1, tsdb_chars_to_float((const char*)paramValue, *soi, &bind->u.f4));
CHK_CONV(1, tsdb_chars_to_float((const char*)paramValue, (size_t)*soi, &bind->u.f4));
} break;
case SQL_C_WCHAR: {
CHK_CONV(1, tsdb_wchars_to_float(sql_get_w2c(sql), (const unsigned char*)paramValue, *soi, &bind->u.f4));
CHK_CONV(1, tsdb_wchars_to_float(sql_get_w2c(sql), (const unsigned char*)paramValue, (size_t)*soi, &bind->u.f4));
} break;
case SQL_C_USHORT:
case SQL_C_ULONG:
......@@ -1603,10 +1601,10 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
bind->u.f8 = *(double*)paramValue;
} break;
case SQL_C_CHAR: {
CHK_CONV(1, tsdb_chars_to_double((const char*)paramValue, *soi, &bind->u.f8));
CHK_CONV(1, tsdb_chars_to_double((const char*)paramValue, (size_t)*soi, &bind->u.f8));
} break;
case SQL_C_WCHAR: {
CHK_CONV(1, tsdb_wchars_to_double(sql_get_w2c(sql), (const unsigned char*)paramValue, *soi, &bind->u.f8));
CHK_CONV(1, tsdb_wchars_to_double(sql_get_w2c(sql), (const unsigned char*)paramValue, (size_t)*soi, &bind->u.f8));
} break;
case SQL_C_USHORT:
case SQL_C_ULONG:
......@@ -1638,7 +1636,7 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
DASSERT(soi);
DASSERT(*soi != SQL_NTS);
size_t bytes = 0;
SQLCHAR *utf8 = wchars_to_chars(paramValue, *soi/2, &bytes);
SQLCHAR *utf8 = wchars_to_chars((const SQLWCHAR*)paramValue, (size_t)*soi/2, &bytes);
bind->allocated = 1;
bind->u.bin = utf8;
bind->buffer_length = bytes;
......@@ -1649,7 +1647,7 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
if (*soi == SQL_NTS) {
bind->buffer_length = strlen((const char*)paramValue);
} else {
bind->buffer_length = *soi;
bind->buffer_length = (uintptr_t)*soi;
}
bind->buffer = bind->u.bin;
} break;
......@@ -1697,9 +1695,9 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
size_t bytes = 0;
int r = 0;
int64_t t = 0;
SQLCHAR *utf8 = wchars_to_chars(paramValue, *soi/2, &bytes);
SQLCHAR *utf8 = wchars_to_chars((const SQLWCHAR*)paramValue, (size_t)*soi/2, &bytes);
// why cast utf8 to 'char*' ?
r = taosParseTime((char*)utf8, &t, strlen((const char*)utf8), TSDB_TIME_PRECISION_MILLI, 0);
r = taosParseTime((char*)utf8, &t, (int)strlen((const char*)utf8), TSDB_TIME_PRECISION_MILLI, 0);
bind->u.v8 = t;
free(utf8);
if (r) {
......@@ -1753,7 +1751,7 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
DASSERT(soi);
DASSERT(*soi != SQL_NTS);
size_t bytes = 0;
SQLCHAR *utf8 = wchars_to_chars(paramValue, *soi/2, &bytes);
SQLCHAR *utf8 = wchars_to_chars((const SQLWCHAR*)paramValue, (size_t)(*soi/2), &bytes);
bind->allocated = 1;
bind->u.nchar = (char*)utf8;
bind->buffer_length = bytes;
......@@ -1764,7 +1762,7 @@ static SQLRETURN do_bind_param_value(sql_t *sql, int idx_row, int idx, param_bin
if (*soi == SQL_NTS) {
bind->buffer_length = strlen((const char*)paramValue);
} else {
bind->buffer_length = *soi;
bind->buffer_length = (uintptr_t)*soi;
}
bind->buffer = bind->u.nchar;
} break;
......@@ -1845,7 +1843,7 @@ static SQLRETURN do_execute(sql_t *sql)
for (int i=0; i<sql->n_rows; ++i) {
TAOS_BIND *binds = NULL;
if (sql->n_params>0) {
binds = (TAOS_BIND*)calloc(sql->n_params, sizeof(*binds));
binds = (TAOS_BIND*)calloc((size_t)sql->n_params, sizeof(*binds));
if (!binds) {
SET_ERROR(sql, "HY001", TSDB_CODE_ODBC_OOM, "");
return SQL_ERROR;
......@@ -1921,7 +1919,7 @@ static SQLRETURN doSQLGetDiagField(SQLSMALLINT HandleType, SQLHANDLE Handle,
SQLSMALLINT *StringLength)
{
// if this function is not exported, isql will never call SQLGetDiagRec
return SQL_ERROR;
return SQL_SUCCESS;
}
SQLRETURN SQL_API SQLGetDiagField(SQLSMALLINT HandleType, SQLHANDLE Handle,
......@@ -2117,14 +2115,14 @@ static SQLRETURN doSQLDriverConnect(
if (host) {
char *p = strchr(host, ':');
if (p) {
ip = strndup(host, p-host);
ip = strndup(host, (size_t)(p-host));
port = atoi(p+1);
}
}
// TODO: data-race
// TODO: shall receive ip/port from odbc.ini
conn->taos = taos_connect(ip ? ip : "localhost", userName, auth, NULL, port);
conn->taos = taos_connect(ip ? ip : "localhost", userName, auth, NULL, (uint16_t)port);
free(ip); ip = NULL;
if (!conn->taos) {
SET_ERROR(conn, "HY000", terrno, "failed to connect to data source");
......@@ -2132,7 +2130,7 @@ static SQLRETURN doSQLDriverConnect(
}
if (szConnStrOut) {
snprintf((char*)szConnStrOut, cbConnStrOutMax, "%s", connStr);
snprintf((char*)szConnStrOut, (size_t)cbConnStrOutMax, "%s", connStr);
}
if (pcbConnStrOut) {
*pcbConnStrOut = cbConnStrIn;
......@@ -2220,13 +2218,13 @@ static SQLRETURN doSQLDescribeCol(SQLHSTMT StatementHandle,
TAOS_FIELD *field = fields + ColumnNumber - 1;
if (ColumnName) {
size_t n = sizeof(field->name);
if (n>BufferLength) n = BufferLength;
if (n>BufferLength) n = (size_t)BufferLength;
strncpy((char*)ColumnName, field->name, n);
}
if (NameLength) {
*NameLength = strnlen(field->name, sizeof(field->name));
*NameLength = (SQLSMALLINT)strnlen(field->name, sizeof(field->name));
}
if (ColumnSize) *ColumnSize = field->bytes;
if (ColumnSize) *ColumnSize = (SQLULEN)field->bytes;
if (DecimalDigits) *DecimalDigits = 0;
if (DataType) {
......@@ -2334,7 +2332,7 @@ static SQLRETURN doSQLNumParams(SQLHSTMT hstmt, SQLSMALLINT *pcpar)
return SQL_ERROR;
}
if (pcpar) *pcpar = params;
if (pcpar) *pcpar = (SQLSMALLINT)params;
return SQL_SUCCESS;
}
......@@ -2420,7 +2418,7 @@ static void init_routine(void) {
taos_init();
}
static int do_field_display_size(TAOS_FIELD *field) {
static size_t do_field_display_size(TAOS_FIELD *field) {
switch (field->type) {
case TSDB_DATA_TYPE_TINYINT:
return 5;
......@@ -2448,7 +2446,7 @@ static int do_field_display_size(TAOS_FIELD *field) {
case TSDB_DATA_TYPE_BINARY:
case TSDB_DATA_TYPE_NCHAR: {
return 3*(field->bytes - VARSTR_HEADER_SIZE) + 2;
return 3*((size_t)field->bytes - VARSTR_HEADER_SIZE) + 2;
} break;
case TSDB_DATA_TYPE_TIMESTAMP:
......
EXPORTS
SQLAllocEnv
SQLFreeEnv
SQLAllocConnect
SQLFreeConnect
SQLConnect
SQLDisconnect
SQLAllocStmt
SQLAllocHandle
SQLFreeStmt
SQLExecDirect
SQLExecDirectW
SQLNumResultCols
SQLRowCount
SQLColAttribute
SQLGetData
SQLFetch
SQLPrepare
SQLExecute
SQLGetDiagField
SQLGetDiagRec
SQLBindParameter
SQLDriverConnect
SQLSetConnectAttr
SQLDescribeCol
SQLNumParams
SQLSetStmtAttr
1 VERSIONINFO
FILEVERSION ${TD_VER_NUMBER}
PRODUCTVERSION ${TD_VER_NUMBER}
FILEFLAGSMASK 0x17L
#ifdef _DEBUG
FILEFLAGS 0x1L
#else
FILEFLAGS 0x0L
#endif
FILEOS 0x4L
FILETYPE 0x0L
FILESUBTYPE 0x0L
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904b0"
BEGIN
VALUE "FileDescription", "ODBC Driver for TDengine"
VALUE "FileVersion", "${TD_VER_NUMBER}"
VALUE "InternalName", "todbc.dll(${TD_VER_CPUTYPE})"
VALUE "LegalCopyright", "Copyright (C) 2020 TAOS Data"
VALUE "OriginalFilename", ""
VALUE "ProductName", "todbc.dll(${TD_VER_CPUTYPE})"
VALUE "ProductVersion", "${TD_VER_NUMBER}"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x409, 1200
END
END
\ No newline at end of file
INSTALLDRIVER "TAOS ODBC|Driver=todbc.dll|FileUsage=0|ConnectFunctions=YYN"
......@@ -15,8 +15,6 @@
#include "todbc_conv.h"
#include "todbc_util.h"
#include <errno.h>
#include <limits.h>
#include <stdio.h>
......@@ -74,7 +72,7 @@ TSDB_CONV_CODE tsdb_iconv_conv(iconv_t cnv, const unsigned char *src, size_t *sl
size_t sl = *slen;
size_t dl = *dlen;
int n = iconv(cnv, &s, &sl, &d, &dl);
size_t n = iconv(cnv, &s, &sl, &d, &dl);
int e = errno;
if (dl) *d = '\0'; // what if all consumed?
......
......@@ -16,11 +16,9 @@
#ifndef _todbc_conv_h_
#define _todbc_conv_h_
#include <inttypes.h>
#include <sqltypes.h>
#include <stddef.h>
#include "iconv.h"
#include "os.h"
#include <iconv.h>
#include <sql.h>
typedef enum {
......
/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TODBC_FLEX_H_
#define _TODBC_FLEX_H_
int todbc_parse_conn_string(const char *conn, char **dsn, char **uid, char **pwd, char **host);
#endif // _TODBC_FLEX_H_
......@@ -16,9 +16,7 @@
#ifndef _todbc_log_h_
#define _todbc_log_h_
#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include "os.h"
#define D(fmt, ...) \
fprintf(stderr, \
......
%{
#include "todbc_util.h"
#include "todbc_flex.h"
#include <stdio.h>
#ifdef _MSC_VER
#define strncasecmp _strnicmp
#define strcasecmp _stricmp
#endif
typedef struct params_s params_t;
struct params_s {
char *key;
......@@ -68,6 +72,8 @@ do { \
%option prefix="todbc_yy"
%option extra-type="struct params_s *"
%option nounistd
%option never-interactive
%option reentrant
%option noyywrap
%option noinput nounput
......@@ -98,8 +104,7 @@ do { \
<EQ>[{] { CHG_STATE(BRACE1); }
<EQ>.|\n { return -1; }
<BRACE1>[[:space:]]+ { }
<BRACE1>[^{}\n[:space:]]+ { set_val(); CHG_STATE(BRACE2); }
<BRACE1>[^{}\n]+ { set_val(); CHG_STATE(BRACE2); }
<BRACE1>.|\n { return -1; }
<BRACE2>[[:space:]]+ { }
......
......@@ -14,14 +14,10 @@
*/
#include "todbc_util.h"
#include "iconv.h"
#include <sql.h>
#include <sqltypes.h>
#include "todbc_log.h"
#include <iconv.h>
#include <sqlext.h>
#include <stdlib.h>
#include <string.h>
const char* sql_sql_type(int type) {
switch (type) {
......@@ -125,7 +121,7 @@ int string_conv(const char *fromcode, const char *tocode,
iconv_t conv = iconv_open(tocode, fromcode);
if (!conv) return -1;
int r = 0;
size_t r = 0;
do {
char *s = (char*)src;
char *d = (char*)dst;
......@@ -141,7 +137,7 @@ int string_conv(const char *fromcode, const char *tocode,
} while (0);
iconv_close(conv);
return r;
return (int)r;
}
int utf8_chars(const char *src)
......@@ -161,7 +157,7 @@ int utf8_chars(const char *src)
size_t chars = (sizeof(buf) - dlen) / 2;
iconv_close(conv);
return chars;
return (int)chars;
}
unsigned char* utf8_to_ucs4le(const char *utf8, size_t *chars)
......@@ -240,7 +236,7 @@ size_t wchars_to_chars2(const SQLWCHAR *src, size_t slen, SQLCHAR *dst, size_t d
{
size_t consumed=0, generated=0;
int n = string_conv("UCS-2LE", "UTF-8", (const unsigned char*)src, slen, dst, dlen, &consumed, &generated);
if (n) return -1;
if (n) return (size_t)-1;
return generated;
}
......@@ -248,7 +244,7 @@ size_t chars_to_wchars2(const SQLCHAR *src, size_t slen, SQLWCHAR *dst, size_t d
{
size_t consumed=0, generated=0;
int n = string_conv("UTF-8", "UCS-2LE", (const unsigned char*)src, slen, (unsigned char*)dst, dlen, &consumed, &generated);
if (n) return -1;
if (n) return (size_t)-1;
return generated;
}
......@@ -16,10 +16,10 @@
#ifndef _TODBC_UTIL_H_
#define _TODBC_UTIL_H_
#include "todbc_log.h"
#include "os.h"
#include <stddef.h>
#include <sql.h>
#include <sqltypes.h>
const char* sql_sql_type(int type);
const char* sql_c_type(int type);
......@@ -27,8 +27,6 @@ const char* sql_c_type(int type);
int is_valid_sql_c_type(int type);
int is_valid_sql_sql_type(int type);
int todbc_parse_conn_string(const char *conn, char **dsn, char **uid, char **pwd, char **host);
int string_conv(const char *fromcode, const char *tocode,
const unsigned char *src, size_t sbytes,
unsigned char *dst, size_t dbytes,
......
......@@ -5,3 +5,9 @@ IF (TD_LINUX)
ADD_EXECUTABLE(tcodbc main.c)
TARGET_LINK_LIBRARIES(tcodbc odbc)
ENDIF ()
IF (TD_WINDOWS_64)
AUX_SOURCE_DIRECTORY(. SRC)
ADD_EXECUTABLE(tcodbc main.c)
TARGET_LINK_LIBRARIES(tcodbc odbc32 os)
ENDIF ()
#include <libgen.h>
#include "../src/todbc_log.h"
#ifdef _MSC_VER
#include <winsock2.h>
#include <windows.h>
#include "os.h"
#endif
#include <sql.h>
#include <sqlext.h>
#include <stdio.h>
#include <string.h>
#include "os.h"
#include "../src/todbc_log.h"
// static const char *dsn = "TAOS_DSN";
// static const char *uid = "root";
// static const char *pwd = "taosdata";
#define CHK_TEST(statement) \
do { \
D("testing: %s", #statement); \
......@@ -72,9 +71,9 @@ static int open_connect(const char *dsn, const char *uid, const char *pwd, SQLHE
CHK_RESULT(r, SQL_HANDLE_ENV, env, "");
if (r!=SQL_SUCCESS) break;
do {
r = SQLConnect(conn, (SQLCHAR*)dsn, strlen(dsn),
(SQLCHAR*)uid, strlen(uid),
(SQLCHAR*)pwd, strlen(pwd));
r = SQLConnect(conn, (SQLCHAR*)dsn, (SQLSMALLINT)strlen(dsn),
(SQLCHAR*)uid, (SQLSMALLINT)strlen(uid),
(SQLCHAR*)pwd, (SQLSMALLINT)strlen(pwd));
CHK_RESULT(r, SQL_HANDLE_DBC, conn, "");
if (r==SQL_SUCCESS) {
*pEnv = env;
......@@ -105,7 +104,7 @@ static int open_driver_connect(const char *connstr, SQLHENV *pEnv, SQLHDBC *pCon
SQLHDBC ConnectionHandle = conn;
SQLHWND WindowHandle = NULL;
SQLCHAR * InConnectionString = (SQLCHAR*)connstr;
SQLSMALLINT StringLength1 = strlen(connstr);
SQLSMALLINT StringLength1 = (SQLSMALLINT)strlen(connstr);
SQLCHAR * OutConnectionString = buf;
SQLSMALLINT BufferLength = sizeof(buf);
SQLSMALLINT * StringLength2Ptr = &blen;
......@@ -144,7 +143,7 @@ static int do_statement(SQLHSTMT stmt, const char *statement) {
CHK_RESULT(r, SQL_HANDLE_STMT, stmt, "");
for (size_t i=0; i<cols; ++i) {
SQLLEN soi = 0;
r = SQLGetData(stmt, i+1, SQL_C_CHAR, buf, sizeof(buf), &soi);
r = SQLGetData(stmt, (SQLUSMALLINT)(i+1), SQL_C_CHAR, buf, sizeof(buf), &soi);
CHK_RESULT(r, SQL_HANDLE_STMT, stmt, "");
if (r) {
if (r!=SQL_SUCCESS_WITH_INFO) {
......@@ -185,10 +184,10 @@ static int do_insert(SQLHSTMT stmt, data_t data) {
SQLLEN lblob;
const char *statement = "insert into t values (?, ?, ?, ?, ?, ?, ?, ?, ?,?)";
int ignored = 0;
#define ignored 0
do {
r = SQLPrepare(stmt, (SQLCHAR*)statement, strlen(statement));
r = SQLPrepare(stmt, (SQLCHAR*)statement, (SQLINTEGER)strlen(statement));
CHK_RESULT(r, SQL_HANDLE_STMT, stmt, "statement: %s", statement);
if (r) break;
......@@ -243,28 +242,30 @@ static int do_insert(SQLHSTMT stmt, data_t data) {
// r = SQLExecute(stmt);
// if (r) break;
} while (0);
#undef ignored
return r;
}
static int test1(const char *dsn, const char *uid, const char *pwd) {
SQLRETURN r = SQL_SUCCESS;
SQLHENV env = {0};
SQLHDBC conn = {0};
int n = open_connect(dsn, uid, pwd, &env, &conn);
if (n) return 1;
int ok = 0;
do {
SQLRETURN r = SQL_SUCCESS;
SQLHSTMT stmt = {0};
r = SQLAllocHandle(SQL_HANDLE_STMT, conn, &stmt);
if (r!=SQL_SUCCESS) break;
do {
if (do_statement(stmt, "drop database if exists db")) {
r = SQL_ERROR;
break;
}
for (size_t i=0; i<sizeof(pre_stmts)/sizeof(pre_stmts[0]); ++i) {
r = do_statement(stmt, pre_stmts[i]);
if (r!=SQL_SUCCESS) break;
n = do_statement(stmt, pre_stmts[i]);
if (n) break;
}
do {
data_t data = {0};
......@@ -274,7 +275,7 @@ static int test1(const char *dsn, const char *uid, const char *pwd) {
data.v2 = 32767;
data.v4 = 2147483647;
data.v8 = 9223372036854775807;
data.f4 = 123.456;
data.f4 = 123.456f;
data.f8 = 9999999.999999;
memset(data.bin, 0, sizeof(data.bin));
memset(data.blob, 0, sizeof(data.blob));
......@@ -285,8 +286,8 @@ static int test1(const char *dsn, const char *uid, const char *pwd) {
r = SQLAllocHandle(SQL_HANDLE_STMT, conn, &stmt);
if (r!=SQL_SUCCESS) break;
do {
r = do_insert(stmt, data);
if (r!=SQL_SUCCESS) break;
n = do_insert(stmt, data);
if (n) break;
} while (0);
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
......@@ -297,12 +298,15 @@ static int test1(const char *dsn, const char *uid, const char *pwd) {
// if (r!=SQL_SUCCESS) break;
// } while (0);
// SQLFreeHandle(SQL_HANDLE_STMT, stmt);
ok = 1;
} while (0);
if (r!=SQL_SUCCESS) break;
if (!ok) break;
ok = 0;
for (size_t i=0; i<sizeof(pro_stmts)/sizeof(pro_stmts[0]); ++i) {
r = do_statement(stmt, pro_stmts[i]);
if (r!=SQL_SUCCESS) break;
n = do_statement(stmt, pro_stmts[i]);
if (n) break;
}
ok = 1;
} while (0);
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
} while (0);
......@@ -310,7 +314,7 @@ static int test1(const char *dsn, const char *uid, const char *pwd) {
SQLFreeConnect(conn);
SQLFreeEnv(env);
return r ? 1 : 0;
return ok ? 0 : 1;
}
int test_statements(const char *dsn, const char *uid, const char *pwd, const char **statements) {
......@@ -418,7 +422,12 @@ int test_sqls_in_stmt(SQLHENV env, SQLHDBC conn, SQLHSTMT stmt, const char *sqls
char *line = NULL;
size_t len = 0;
ssize_t n = getline(&line, &len, f);
ssize_t n = 0;
#ifdef _MSC_VER
n = taosGetline(&line, &len, f);
#else
n = getline(&line, &len, f);
#endif
if (n==-1) break;
const char *p = NULL;
......@@ -493,6 +502,11 @@ int main(int argc, char *argv[]) {
const char *connstr = (argc>4) ? argv[4] : NULL;
const char *sqls = (argc>5) ? argv[5] : NULL;
dsn = NULL;
uid = NULL;
pwd = NULL;
connstr = argv[1];
sqls = argv[2];
if (0) {
CHK_TEST(test_env());
......
P:drop database if exists m;
P:create database m;
P:use m;
P:create table t (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, blob binary(1), name nchar(1));
P:insert into t (ts, b) values('2020-10-10 00:00:00', 0);
P:insert into t (ts, b) values('2020-10-10 00:00:00.001', 1);
P:insert into t (ts, b) values('2020-10-10 00:00:00.002', 10);
P:select * from t;
P:drop table t;
P:create table t (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, blob binary(1), name nchar(1));
P:insert into t (ts, v1) values('2020-10-10 00:00:00', 0);
P:insert into t (ts, v1) values('2020-10-10 00:00:00.001', 1);
P:insert into t (ts, v1) values('2020-10-10 00:00:00.002', 10);
P:select * from t;
P:drop table t;
P:create table t (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, blob binary(1), name nchar(1));
P:insert into t (ts, name) values('2020-10-10 00:00:00', 0);
P:insert into t (ts, name) values('2020-10-10 00:00:00.001', 1);
P:insert into t (ts, name) values('2020-10-10 00:00:00.002', '人');
P:insert into t (ts, name) values('2020-10-10 00:00:00.003', 'a');
P:select * from t;
P:drop table t;
P:create table t (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, blob binary(3), name nchar(1));
P:insert into t (ts, blob) values('2020-10-10 00:00:00', 0);
P:insert into t (ts, blob) values('2020-10-10 00:00:00.001', 1);
P:insert into t (ts, blob) values('2020-10-10 00:00:00.002', 'a');
P:insert into t (ts, blob) values('2020-10-10 00:00:00.003', 'b');
P:insert into t (ts, blob) values('2020-10-10 00:00:00.004', '人');
P:select * from t;
P:drop table t;
P:create table t (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, blob binary(3), name nchar(1));
N:insert into t (ts, blob) values('2020-10-10 00:00:00', '1234');
N:insert into t (ts, blob) values('2020-10-10 00:00:00.001', '0000');
N:insert into t (ts, blob) values('2020-10-10 00:00:00.002', '人a');
P:insert into t (ts, blob) values('2020-10-10 00:00:00.003', 'a');
P:insert into t (ts, blob) values('2020-10-10 00:00:00.004', 'b');
P:insert into t (ts, blob) values('2020-10-10 00:00:00.005', '人');
P:select * from t;
......@@ -24,9 +24,9 @@ extern "C" {
#include <stdbool.h>
#ifdef TAOS_ERROR_C
#define TAOS_DEFINE_ERROR(name, mod, code, msg) {.val = (0x80000000 | ((mod)<<16) | (code)), .str=(msg)},
#define TAOS_DEFINE_ERROR(name, mod, code, msg) {.val = (int32_t)((0x80000000 | ((mod)<<16) | (code))), .str=(msg)},
#else
#define TAOS_DEFINE_ERROR(name, mod, code, msg) static const int32_t name = (0x80000000 | ((mod)<<16) | (code));
#define TAOS_DEFINE_ERROR(name, mod, code, msg) static const int32_t name = (int32_t)((0x80000000 | ((mod)<<16) | (code)));
#endif
#define TAOS_SYSTEM_ERROR(code) (0x80ff0000 | (code))
......
......@@ -38,14 +38,14 @@ int32_t taosGetTimestampSec();
static FORCE_INLINE int64_t taosGetTimestampMs() {
struct timeval systemTime;
gettimeofday(&systemTime, NULL);
return (int64_t)systemTime.tv_sec * 1000L + (uint64_t)systemTime.tv_usec / 1000;
return (int64_t)systemTime.tv_sec * 1000L + (int64_t)systemTime.tv_usec / 1000;
}
//@return timestamp in microsecond
static FORCE_INLINE int64_t taosGetTimestampUs() {
struct timeval systemTime;
gettimeofday(&systemTime, NULL);
return (int64_t)systemTime.tv_sec * 1000000L + (uint64_t)systemTime.tv_usec;
return (int64_t)systemTime.tv_sec * 1000000L + (int64_t)systemTime.tv_usec;
}
/*
......
......@@ -43,6 +43,7 @@
#include "msvcProcess.h"
#include "msvcDirect.h"
#include "msvcFcntl.h"
#include "msvcLibgen.h"
#include "msvcStdio.h"
#include "sys/msvcStat.h"
#include "sys/msvcTypes.h"
......
......@@ -31,7 +31,10 @@
#pragma comment(lib, "Mswsock.lib ")
#endif
#pragma warning(push)
#pragma warning(disable:4091)
#include <DbgHelp.h>
#pragma warning(pop)
static void taosGetSystemTimezone() {
// get and set default timezone
......
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