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Use the new form of the sqlite3_create_function() API. (CVS 1460)

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FossilOrigin-Name: 0317bef4b0c219ca2888c90553201e53230fb360
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danielk1977
2004-05-26 06:18:37 +00:00
parent fc57d7bf72
commit 6590493d53
11 changed files with 385 additions and 382 deletions
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101
src/main.c
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@@ -14,7 +14,7 @@
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.190 2004/05/26 02:04:57 danielk1977 Exp $
** $Id: main.c,v 1.191 2004/05/26 06:18:37 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
@@ -641,62 +641,65 @@ void sqlite3_freemem(void *p){ free(p); }
const char *sqlite3_libversion(void){ return sqlite3_version; }
const char *sqlite3_libencoding(void){ return sqlite3_encoding; }
/*
** Create new user-defined functions. The sqlite3_create_function()
** routine creates a regular function and sqlite3_create_aggregate()
** creates an aggregate function.
**
** Passing a NULL xFunc argument or NULL xStep and xFinalize arguments
** disables the function. Calling sqlite3_create_function() with the
** same name and number of arguments as a prior call to
** sqlite3_create_aggregate() disables the prior call to
** sqlite3_create_aggregate(), and vice versa.
**
** If nArg is -1 it means that this function will accept any number
** of arguments, including 0. The maximum allowed value of nArg is 127.
*/
int sqlite3_create_function(
sqlite *db, /* Add the function to this database connection */
const char *zName, /* Name of the function to add */
int nArg, /* Number of arguments */
void (*xFunc)(sqlite3_context*,int,sqlite3_value **), /* The implementation */
void *pUserData /* User data */
sqlite3 *db,
const char *zFunctionName,
int nArg,
int eTextRep,
int iCollateArg,
void *pUserData,
void (*xFunc)(sqlite3_context*,int,sqlite3_value **),
void (*xStep)(sqlite3_context*,int,sqlite3_value **),
void (*xFinal)(sqlite3_context*)
){
FuncDef *p;
int nName;
if( db==0 || zName==0 || sqlite3SafetyCheck(db) ) return 1;
if( nArg<-1 || nArg>127 ) return 1;
nName = strlen(zName);
if( nName>255 ) return 1;
p = sqlite3FindFunction(db, zName, nName, nArg, 1);
if( db==0 || zFunctionName==0 || sqlite3SafetyCheck(db) ){
return SQLITE_ERROR;
}
if( (xFunc && (xFinal || xStep)) || (!xFunc && (!xFinal && !xStep)) ){
return SQLITE_ERROR;
}
if( nArg<-1 || nArg>127 ){
return SQLITE_ERROR;
}
nName = strlen(zFunctionName);
if( nName>255 ){
return SQLITE_ERROR;
}
p = sqlite3FindFunction(db, zFunctionName, nName, nArg, 1);
if( p==0 ) return 1;
p->xFunc = xFunc;
p->xStep = 0;
p->xFinalize = 0;
p->pUserData = pUserData;
return 0;
}
int sqlite3_create_aggregate(
sqlite *db, /* Add the function to this database connection */
const char *zName, /* Name of the function to add */
int nArg, /* Number of arguments */
void (*xStep)(sqlite3_context*,int,sqlite3_value**), /* The step function */
void (*xFinalize)(sqlite3_context*), /* The finalizer */
void *pUserData /* User data */
){
FuncDef *p;
int nName;
if( db==0 || zName==0 || sqlite3SafetyCheck(db) ) return 1;
if( nArg<-1 || nArg>127 ) return 1;
nName = strlen(zName);
if( nName>255 ) return 1;
p = sqlite3FindFunction(db, zName, nName, nArg, 1);
if( p==0 ) return 1;
p->xFunc = 0;
p->xStep = xStep;
p->xFinalize = xFinalize;
p->xFinalize = xFinal;
p->pUserData = pUserData;
return 0;
return SQLITE_OK;
}
int sqlite3_create_function16(
sqlite3 *db,
const void *zFunctionName,
int nArg,
int eTextRep,
int iCollateArg,
void *pUserData,
void (*xFunc)(sqlite3_context*,int,sqlite3_value**),
void (*xStep)(sqlite3_context*,int,sqlite3_value**),
void (*xFinal)(sqlite3_context*)
){
int rc;
char *zFunctionName8;
zFunctionName8 = sqlite3utf16to8(zFunctionName, -1, SQLITE3_BIGENDIAN);
if( !zFunctionName8 ){
return SQLITE_NOMEM;
}
rc = sqlite3_create_function(db, zFunctionName8, nArg, eTextRep,
iCollateArg, pUserData, xFunc, xStep, xFinal);
sqliteFree(zFunctionName8);
return rc;
}
/*