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openLooKeng / hetu-odbc-driverCLGPL-2.1

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The ODBC driver of openLooKeng provides the ODBC interconnection capability for openLooKeng. spread retract

  • C 95.8%
  • CMake 2.7%
  • Shell 0.5%
  • C++ 0.4%
  • Batchfile 0.3%
  • Other 0.3%
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ma_legacy_helpers.h 3.63 KB
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bryanwong authored 2020-06-29 21:58 . openlookeng first commit
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
2016 MariaDB Corporation AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not see <http://www.gnu.org/licenses>
or write to the Free Software Foundation, Inc.,
51 Franklin St., Fifth Floor, Boston, MA 02110, USA
*/
#ifndef _MA_LEGACY_HELPERS_H
#define _MA_LEGACY_HELPERS_H
/********
*
* Function definitions, types, macros for MADB_List, MADB_DynArray, and MADB_DynString copied from C/C
*
********/
/*
*************** Dubble-linked lists *********
*/
typedef struct st_ma_odbc_list {
struct st_ma_odbc_list *prev, *next;
void *data;
} MADB_List;
typedef int(*MADB_ListWalkAction)(void *, void *);
/* Add a element to start of list */
MADB_List *MADB_ListAdd(MADB_List *root, MADB_List *element);
MADB_List *MADB_ListDelete(MADB_List *root, MADB_List *element);
void MADB_ListFree(MADB_List *root, unsigned int free_data);
MADB_List *MADB_ListCons(void *data, MADB_List *list);
MADB_List *MADB_ListReverse(MADB_List *root);
unsigned int MADB_ListLength(MADB_List *list);
int MADB_ListWalk(MADB_List *list, MADB_ListWalkAction action, char *argument);
#define MADB_LIST_REST(a) ((a)->next)
#define MADB_LIST_PUSH(a,b) (a)=MADB_ListCons((b),(a))
#define MADB_LIST_POP(A) {MADB_List *old=(A); (A)=MADB_ListDelete(old,old) ; free((char *) old); }
/************************** MADB_DynString ************************/
typedef struct st_ma_odbc_dynstr {
char *str;
size_t length,max_length,alloc_increment;
} MADB_DynString;
my_bool MADB_InitDynamicString(MADB_DynString *str, const char *init_str,
size_t init_alloc, size_t alloc_increment);
my_bool MADB_DynstrSet(MADB_DynString *str, const char *init_str);
my_bool MADB_DynstrRealloc(MADB_DynString *str, size_t additional_size);
my_bool MADB_DynstrAppend(MADB_DynString *str, const char *append);
my_bool MADB_DynstrAppendMem(MADB_DynString *str, const char *append,
size_t length);
void MADB_DynstrFree(MADB_DynString *str);
char *MADB_DynstrMake(register char *dst, register const char *src, size_t length);
/************* MADB_DynArray - Arrays that can grow dynamicly. **************/
typedef struct ma_odbc_st_dynarr {
char *buffer;
unsigned int elements,max_element;
unsigned int alloc_increment;
unsigned int size_of_element;
} MADB_DynArray;
my_bool MADB_InitDynamicArray(MADB_DynArray *array, unsigned int element_size,
unsigned int init_alloc, unsigned int alloc_increment);
my_bool MADB_InsertDynamic(MADB_DynArray *array, void *element);
/* Alloc room for one element */
unsigned char *MADB_AllocDynamic(MADB_DynArray *array);
/* remove last element from array and return it */
unsigned char *MADB_PopDynamic(MADB_DynArray *array);
my_bool MADB_SetDynamic(MADB_DynArray *array, void * element, unsigned int idx);
void MADB_GetDynamic(MADB_DynArray *array, void * element, unsigned int idx);
void MADB_DeleteDynamic(MADB_DynArray *array);
void MADB_DeleteDynamicElement(MADB_DynArray *array, unsigned int idx);
void MADB_FreezeSizeDynamic(MADB_DynArray *array);
#endif /* #ifndef _MA_LEGACY_HELPERS_H */

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