File: _FreeStmt.c

package info (click to toggle)
unixodbc 2.2.11-16
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 17,332 kB
  • ctags: 12,399
  • sloc: ansic: 116,624; cpp: 29,333; sh: 25,024; makefile: 3,002; lex: 241; yacc: 182; perl: 142; sed: 16; sql: 1
file content (54 lines) | stat: -rw-r--r-- 1,601 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
/**************************************************
 * _FreeStmt
 *
 **************************************************
 * This code was created by Peter Harvey @ CodeByDesign.
 * Released under LGPL 31.JAN.99
 *
 * Contributions from...
 * -----------------------------------------------
 * Peter Harvey		- pharvey@codebydesign.com
 **************************************************/
#include "driver.h"

SQLRETURN _FreeStmt( SQLHSTMT hDrvStmt )
{
    HDRVSTMT hStmt	= (HDRVSTMT)hDrvStmt;
	HDRVSTMT	hPrevStmt;
	SQLRETURN	nReturn;

	if ( hStmt == SQL_NULL_HDBC )
		return SQL_ERROR;

	/* SPECIAL CHECK FOR FIRST IN LIST 				*/
	if ( ((HDRVDBC)hStmt->hDbc)->hFirstStmt == hStmt )
		((HDRVDBC)hStmt->hDbc)->hFirstStmt = hStmt->pNext;
	
	/* SPECIAL CHECK FOR LAST IN LIST 				*/
	if ( ((HDRVDBC)hStmt->hDbc)->hLastStmt == hStmt )
		((HDRVDBC)hStmt->hDbc)->hLastStmt = hStmt->pPrev;

	/* EXTRACT SELF FROM LIST						*/
	if ( hStmt->pPrev != SQL_NULL_HSTMT )
		hStmt->pPrev->pNext = hStmt->pNext;
	if ( hStmt->pNext != SQL_NULL_HSTMT )
		hStmt->pNext->pPrev = hStmt->pPrev;

	/* FREE STANDARD MEMORY */
	if( NULL != hStmt->pszQuery ) free( hStmt->pszQuery );

/*********************************************************************/
/* 	!!! FREE DRIVER SPECIFIC MEMORY (hidden in hStmtExtras) HERE !!! */
	_FreeResults( hStmt->hStmtExtras );
	free( hStmt->hStmtExtras );
/*********************************************************************/

	logPushMsg( hStmt->hLog, __FILE__, __FILE__, __LINE__, LOG_INFO, LOG_INFO, "SQL_SUCCESS" );
	logClose( hStmt->hLog );
	free( hStmt );

	return SQL_SUCCESS;
}