mirror of
https://github.com/alliedmodders/amxmodx.git
synced 2024-12-25 22:35:37 +03:00
a595557e2d
Update to SQLite 3.3.5
2193 lines
66 KiB
C
2193 lines
66 KiB
C
/*
|
|
** 2001 September 15
|
|
**
|
|
** The author disclaims copyright to this source code. In place of
|
|
** a legal notice, here is a blessing:
|
|
**
|
|
** May you do good and not evil.
|
|
** May you find forgiveness for yourself and forgive others.
|
|
** May you share freely, never taking more than you give.
|
|
**
|
|
*************************************************************************
|
|
** A TCL Interface to SQLite
|
|
**
|
|
** $Id$
|
|
*/
|
|
#ifndef NO_TCL /* Omit this whole file if TCL is unavailable */
|
|
|
|
#include "sqliteInt.h"
|
|
#include "hash.h"
|
|
#include "tcl.h"
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
#include <ctype.h>
|
|
|
|
|
|
#define NUM_PREPARED_STMTS 10
|
|
#define MAX_PREPARED_STMTS 100
|
|
|
|
/*
|
|
** If TCL uses UTF-8 and SQLite is configured to use iso8859, then we
|
|
** have to do a translation when going between the two. Set the
|
|
** UTF_TRANSLATION_NEEDED macro to indicate that we need to do
|
|
** this translation.
|
|
*/
|
|
#if defined(TCL_UTF_MAX) && !defined(SQLITE_UTF8)
|
|
# define UTF_TRANSLATION_NEEDED 1
|
|
#endif
|
|
|
|
/*
|
|
** New SQL functions can be created as TCL scripts. Each such function
|
|
** is described by an instance of the following structure.
|
|
*/
|
|
typedef struct SqlFunc SqlFunc;
|
|
struct SqlFunc {
|
|
Tcl_Interp *interp; /* The TCL interpret to execute the function */
|
|
Tcl_Obj *pScript; /* The Tcl_Obj representation of the script */
|
|
int useEvalObjv; /* True if it is safe to use Tcl_EvalObjv */
|
|
char *zName; /* Name of this function */
|
|
SqlFunc *pNext; /* Next function on the list of them all */
|
|
};
|
|
|
|
/*
|
|
** New collation sequences function can be created as TCL scripts. Each such
|
|
** function is described by an instance of the following structure.
|
|
*/
|
|
typedef struct SqlCollate SqlCollate;
|
|
struct SqlCollate {
|
|
Tcl_Interp *interp; /* The TCL interpret to execute the function */
|
|
char *zScript; /* The script to be run */
|
|
SqlCollate *pNext; /* Next function on the list of them all */
|
|
};
|
|
|
|
/*
|
|
** Prepared statements are cached for faster execution. Each prepared
|
|
** statement is described by an instance of the following structure.
|
|
*/
|
|
typedef struct SqlPreparedStmt SqlPreparedStmt;
|
|
struct SqlPreparedStmt {
|
|
SqlPreparedStmt *pNext; /* Next in linked list */
|
|
SqlPreparedStmt *pPrev; /* Previous on the list */
|
|
sqlite3_stmt *pStmt; /* The prepared statement */
|
|
int nSql; /* chars in zSql[] */
|
|
char zSql[1]; /* Text of the SQL statement */
|
|
};
|
|
|
|
/*
|
|
** There is one instance of this structure for each SQLite database
|
|
** that has been opened by the SQLite TCL interface.
|
|
*/
|
|
typedef struct SqliteDb SqliteDb;
|
|
struct SqliteDb {
|
|
sqlite3 *db; /* The "real" database structure. MUST BE FIRST */
|
|
Tcl_Interp *interp; /* The interpreter used for this database */
|
|
char *zBusy; /* The busy callback routine */
|
|
char *zCommit; /* The commit hook callback routine */
|
|
char *zTrace; /* The trace callback routine */
|
|
char *zProfile; /* The profile callback routine */
|
|
char *zProgress; /* The progress callback routine */
|
|
char *zAuth; /* The authorization callback routine */
|
|
char *zNull; /* Text to substitute for an SQL NULL value */
|
|
SqlFunc *pFunc; /* List of SQL functions */
|
|
Tcl_Obj *pUpdateHook; /* Update hook script (if any) */
|
|
Tcl_Obj *pRollbackHook; /* Rollback hook script (if any) */
|
|
SqlCollate *pCollate; /* List of SQL collation functions */
|
|
int rc; /* Return code of most recent sqlite3_exec() */
|
|
Tcl_Obj *pCollateNeeded; /* Collation needed script */
|
|
SqlPreparedStmt *stmtList; /* List of prepared statements*/
|
|
SqlPreparedStmt *stmtLast; /* Last statement in the list */
|
|
int maxStmt; /* The next maximum number of stmtList */
|
|
int nStmt; /* Number of statements in stmtList */
|
|
};
|
|
|
|
/*
|
|
** Look at the script prefix in pCmd. We will be executing this script
|
|
** after first appending one or more arguments. This routine analyzes
|
|
** the script to see if it is safe to use Tcl_EvalObjv() on the script
|
|
** rather than the more general Tcl_EvalEx(). Tcl_EvalObjv() is much
|
|
** faster.
|
|
**
|
|
** Scripts that are safe to use with Tcl_EvalObjv() consists of a
|
|
** command name followed by zero or more arguments with no [...] or $
|
|
** or {...} or ; to be seen anywhere. Most callback scripts consist
|
|
** of just a single procedure name and they meet this requirement.
|
|
*/
|
|
static int safeToUseEvalObjv(Tcl_Interp *interp, Tcl_Obj *pCmd){
|
|
/* We could try to do something with Tcl_Parse(). But we will instead
|
|
** just do a search for forbidden characters. If any of the forbidden
|
|
** characters appear in pCmd, we will report the string as unsafe.
|
|
*/
|
|
const char *z;
|
|
int n;
|
|
z = Tcl_GetStringFromObj(pCmd, &n);
|
|
while( n-- > 0 ){
|
|
int c = *(z++);
|
|
if( c=='$' || c=='[' || c==';' ) return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
** Find an SqlFunc structure with the given name. Or create a new
|
|
** one if an existing one cannot be found. Return a pointer to the
|
|
** structure.
|
|
*/
|
|
static SqlFunc *findSqlFunc(SqliteDb *pDb, const char *zName){
|
|
SqlFunc *p, *pNew;
|
|
int i;
|
|
pNew = (SqlFunc*)Tcl_Alloc( sizeof(*pNew) + strlen(zName) + 1 );
|
|
pNew->zName = (char*)&pNew[1];
|
|
for(i=0; zName[i]; i++){ pNew->zName[i] = tolower(zName[i]); }
|
|
pNew->zName[i] = 0;
|
|
for(p=pDb->pFunc; p; p=p->pNext){
|
|
if( strcmp(p->zName, pNew->zName)==0 ){
|
|
Tcl_Free((char*)pNew);
|
|
return p;
|
|
}
|
|
}
|
|
pNew->interp = pDb->interp;
|
|
pNew->pScript = 0;
|
|
pNew->pNext = pDb->pFunc;
|
|
pDb->pFunc = pNew;
|
|
return pNew;
|
|
}
|
|
|
|
/*
|
|
** Finalize and free a list of prepared statements
|
|
*/
|
|
static void flushStmtCache( SqliteDb *pDb ){
|
|
SqlPreparedStmt *pPreStmt;
|
|
|
|
while( pDb->stmtList ){
|
|
sqlite3_finalize( pDb->stmtList->pStmt );
|
|
pPreStmt = pDb->stmtList;
|
|
pDb->stmtList = pDb->stmtList->pNext;
|
|
Tcl_Free( (char*)pPreStmt );
|
|
}
|
|
pDb->nStmt = 0;
|
|
pDb->stmtLast = 0;
|
|
}
|
|
|
|
/*
|
|
** TCL calls this procedure when an sqlite3 database command is
|
|
** deleted.
|
|
*/
|
|
static void DbDeleteCmd(void *db){
|
|
SqliteDb *pDb = (SqliteDb*)db;
|
|
flushStmtCache(pDb);
|
|
sqlite3_close(pDb->db);
|
|
while( pDb->pFunc ){
|
|
SqlFunc *pFunc = pDb->pFunc;
|
|
pDb->pFunc = pFunc->pNext;
|
|
Tcl_DecrRefCount(pFunc->pScript);
|
|
Tcl_Free((char*)pFunc);
|
|
}
|
|
while( pDb->pCollate ){
|
|
SqlCollate *pCollate = pDb->pCollate;
|
|
pDb->pCollate = pCollate->pNext;
|
|
Tcl_Free((char*)pCollate);
|
|
}
|
|
if( pDb->zBusy ){
|
|
Tcl_Free(pDb->zBusy);
|
|
}
|
|
if( pDb->zTrace ){
|
|
Tcl_Free(pDb->zTrace);
|
|
}
|
|
if( pDb->zProfile ){
|
|
Tcl_Free(pDb->zProfile);
|
|
}
|
|
if( pDb->zAuth ){
|
|
Tcl_Free(pDb->zAuth);
|
|
}
|
|
if( pDb->zNull ){
|
|
Tcl_Free(pDb->zNull);
|
|
}
|
|
if( pDb->pUpdateHook ){
|
|
Tcl_DecrRefCount(pDb->pUpdateHook);
|
|
}
|
|
if( pDb->pRollbackHook ){
|
|
Tcl_DecrRefCount(pDb->pRollbackHook);
|
|
}
|
|
if( pDb->pCollateNeeded ){
|
|
Tcl_DecrRefCount(pDb->pCollateNeeded);
|
|
}
|
|
Tcl_Free((char*)pDb);
|
|
}
|
|
|
|
/*
|
|
** This routine is called when a database file is locked while trying
|
|
** to execute SQL.
|
|
*/
|
|
static int DbBusyHandler(void *cd, int nTries){
|
|
SqliteDb *pDb = (SqliteDb*)cd;
|
|
int rc;
|
|
char zVal[30];
|
|
|
|
sprintf(zVal, "%d", nTries);
|
|
rc = Tcl_VarEval(pDb->interp, pDb->zBusy, " ", zVal, (char*)0);
|
|
if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
** This routine is invoked as the 'progress callback' for the database.
|
|
*/
|
|
static int DbProgressHandler(void *cd){
|
|
SqliteDb *pDb = (SqliteDb*)cd;
|
|
int rc;
|
|
|
|
assert( pDb->zProgress );
|
|
rc = Tcl_Eval(pDb->interp, pDb->zProgress);
|
|
if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifndef SQLITE_OMIT_TRACE
|
|
/*
|
|
** This routine is called by the SQLite trace handler whenever a new
|
|
** block of SQL is executed. The TCL script in pDb->zTrace is executed.
|
|
*/
|
|
static void DbTraceHandler(void *cd, const char *zSql){
|
|
SqliteDb *pDb = (SqliteDb*)cd;
|
|
Tcl_DString str;
|
|
|
|
Tcl_DStringInit(&str);
|
|
Tcl_DStringAppend(&str, pDb->zTrace, -1);
|
|
Tcl_DStringAppendElement(&str, zSql);
|
|
Tcl_Eval(pDb->interp, Tcl_DStringValue(&str));
|
|
Tcl_DStringFree(&str);
|
|
Tcl_ResetResult(pDb->interp);
|
|
}
|
|
#endif
|
|
|
|
#ifndef SQLITE_OMIT_TRACE
|
|
/*
|
|
** This routine is called by the SQLite profile handler after a statement
|
|
** SQL has executed. The TCL script in pDb->zProfile is evaluated.
|
|
*/
|
|
static void DbProfileHandler(void *cd, const char *zSql, sqlite_uint64 tm){
|
|
SqliteDb *pDb = (SqliteDb*)cd;
|
|
Tcl_DString str;
|
|
char zTm[100];
|
|
|
|
sqlite3_snprintf(sizeof(zTm)-1, zTm, "%lld", tm);
|
|
Tcl_DStringInit(&str);
|
|
Tcl_DStringAppend(&str, pDb->zProfile, -1);
|
|
Tcl_DStringAppendElement(&str, zSql);
|
|
Tcl_DStringAppendElement(&str, zTm);
|
|
Tcl_Eval(pDb->interp, Tcl_DStringValue(&str));
|
|
Tcl_DStringFree(&str);
|
|
Tcl_ResetResult(pDb->interp);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
** This routine is called when a transaction is committed. The
|
|
** TCL script in pDb->zCommit is executed. If it returns non-zero or
|
|
** if it throws an exception, the transaction is rolled back instead
|
|
** of being committed.
|
|
*/
|
|
static int DbCommitHandler(void *cd){
|
|
SqliteDb *pDb = (SqliteDb*)cd;
|
|
int rc;
|
|
|
|
rc = Tcl_Eval(pDb->interp, pDb->zCommit);
|
|
if( rc!=TCL_OK || atoi(Tcl_GetStringResult(pDb->interp)) ){
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void DbRollbackHandler(void *clientData){
|
|
SqliteDb *pDb = (SqliteDb*)clientData;
|
|
assert(pDb->pRollbackHook);
|
|
if( TCL_OK!=Tcl_EvalObjEx(pDb->interp, pDb->pRollbackHook, 0) ){
|
|
Tcl_BackgroundError(pDb->interp);
|
|
}
|
|
}
|
|
|
|
static void DbUpdateHandler(
|
|
void *p,
|
|
int op,
|
|
const char *zDb,
|
|
const char *zTbl,
|
|
sqlite_int64 rowid
|
|
){
|
|
SqliteDb *pDb = (SqliteDb *)p;
|
|
Tcl_Obj *pCmd;
|
|
|
|
assert( pDb->pUpdateHook );
|
|
assert( op==SQLITE_INSERT || op==SQLITE_UPDATE || op==SQLITE_DELETE );
|
|
|
|
pCmd = Tcl_DuplicateObj(pDb->pUpdateHook);
|
|
Tcl_IncrRefCount(pCmd);
|
|
Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(
|
|
( (op==SQLITE_INSERT)?"INSERT":(op==SQLITE_UPDATE)?"UPDATE":"DELETE"), -1));
|
|
Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(zDb, -1));
|
|
Tcl_ListObjAppendElement(0, pCmd, Tcl_NewStringObj(zTbl, -1));
|
|
Tcl_ListObjAppendElement(0, pCmd, Tcl_NewWideIntObj(rowid));
|
|
Tcl_EvalObjEx(pDb->interp, pCmd, TCL_EVAL_DIRECT);
|
|
}
|
|
|
|
static void tclCollateNeeded(
|
|
void *pCtx,
|
|
sqlite3 *db,
|
|
int enc,
|
|
const char *zName
|
|
){
|
|
SqliteDb *pDb = (SqliteDb *)pCtx;
|
|
Tcl_Obj *pScript = Tcl_DuplicateObj(pDb->pCollateNeeded);
|
|
Tcl_IncrRefCount(pScript);
|
|
Tcl_ListObjAppendElement(0, pScript, Tcl_NewStringObj(zName, -1));
|
|
Tcl_EvalObjEx(pDb->interp, pScript, 0);
|
|
Tcl_DecrRefCount(pScript);
|
|
}
|
|
|
|
/*
|
|
** This routine is called to evaluate an SQL collation function implemented
|
|
** using TCL script.
|
|
*/
|
|
static int tclSqlCollate(
|
|
void *pCtx,
|
|
int nA,
|
|
const void *zA,
|
|
int nB,
|
|
const void *zB
|
|
){
|
|
SqlCollate *p = (SqlCollate *)pCtx;
|
|
Tcl_Obj *pCmd;
|
|
|
|
pCmd = Tcl_NewStringObj(p->zScript, -1);
|
|
Tcl_IncrRefCount(pCmd);
|
|
Tcl_ListObjAppendElement(p->interp, pCmd, Tcl_NewStringObj(zA, nA));
|
|
Tcl_ListObjAppendElement(p->interp, pCmd, Tcl_NewStringObj(zB, nB));
|
|
Tcl_EvalObjEx(p->interp, pCmd, TCL_EVAL_DIRECT);
|
|
Tcl_DecrRefCount(pCmd);
|
|
return (atoi(Tcl_GetStringResult(p->interp)));
|
|
}
|
|
|
|
/*
|
|
** This routine is called to evaluate an SQL function implemented
|
|
** using TCL script.
|
|
*/
|
|
static void tclSqlFunc(sqlite3_context *context, int argc, sqlite3_value**argv){
|
|
SqlFunc *p = sqlite3_user_data(context);
|
|
Tcl_Obj *pCmd;
|
|
int i;
|
|
int rc;
|
|
|
|
if( argc==0 ){
|
|
/* If there are no arguments to the function, call Tcl_EvalObjEx on the
|
|
** script object directly. This allows the TCL compiler to generate
|
|
** bytecode for the command on the first invocation and thus make
|
|
** subsequent invocations much faster. */
|
|
pCmd = p->pScript;
|
|
Tcl_IncrRefCount(pCmd);
|
|
rc = Tcl_EvalObjEx(p->interp, pCmd, 0);
|
|
Tcl_DecrRefCount(pCmd);
|
|
}else{
|
|
/* If there are arguments to the function, make a shallow copy of the
|
|
** script object, lappend the arguments, then evaluate the copy.
|
|
**
|
|
** By "shallow" copy, we mean a only the outer list Tcl_Obj is duplicated.
|
|
** The new Tcl_Obj contains pointers to the original list elements.
|
|
** That way, when Tcl_EvalObjv() is run and shimmers the first element
|
|
** of the list to tclCmdNameType, that alternate representation will
|
|
** be preserved and reused on the next invocation.
|
|
*/
|
|
Tcl_Obj **aArg;
|
|
int nArg;
|
|
if( Tcl_ListObjGetElements(p->interp, p->pScript, &nArg, &aArg) ){
|
|
sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
|
|
return;
|
|
}
|
|
pCmd = Tcl_NewListObj(nArg, aArg);
|
|
Tcl_IncrRefCount(pCmd);
|
|
for(i=0; i<argc; i++){
|
|
sqlite3_value *pIn = argv[i];
|
|
Tcl_Obj *pVal;
|
|
|
|
/* Set pVal to contain the i'th column of this row. */
|
|
switch( sqlite3_value_type(pIn) ){
|
|
case SQLITE_BLOB: {
|
|
int bytes = sqlite3_value_bytes(pIn);
|
|
pVal = Tcl_NewByteArrayObj(sqlite3_value_blob(pIn), bytes);
|
|
break;
|
|
}
|
|
case SQLITE_INTEGER: {
|
|
sqlite_int64 v = sqlite3_value_int64(pIn);
|
|
if( v>=-2147483647 && v<=2147483647 ){
|
|
pVal = Tcl_NewIntObj(v);
|
|
}else{
|
|
pVal = Tcl_NewWideIntObj(v);
|
|
}
|
|
break;
|
|
}
|
|
case SQLITE_FLOAT: {
|
|
double r = sqlite3_value_double(pIn);
|
|
pVal = Tcl_NewDoubleObj(r);
|
|
break;
|
|
}
|
|
case SQLITE_NULL: {
|
|
pVal = Tcl_NewStringObj("", 0);
|
|
break;
|
|
}
|
|
default: {
|
|
int bytes = sqlite3_value_bytes(pIn);
|
|
pVal = Tcl_NewStringObj((char *)sqlite3_value_text(pIn), bytes);
|
|
break;
|
|
}
|
|
}
|
|
rc = Tcl_ListObjAppendElement(p->interp, pCmd, pVal);
|
|
if( rc ){
|
|
Tcl_DecrRefCount(pCmd);
|
|
sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
|
|
return;
|
|
}
|
|
}
|
|
if( !p->useEvalObjv ){
|
|
/* Tcl_EvalObjEx() will automatically call Tcl_EvalObjv() if pCmd
|
|
** is a list without a string representation. To prevent this from
|
|
** happening, make sure pCmd has a valid string representation */
|
|
Tcl_GetString(pCmd);
|
|
}
|
|
rc = Tcl_EvalObjEx(p->interp, pCmd, TCL_EVAL_DIRECT);
|
|
Tcl_DecrRefCount(pCmd);
|
|
}
|
|
|
|
if( rc && rc!=TCL_RETURN ){
|
|
sqlite3_result_error(context, Tcl_GetStringResult(p->interp), -1);
|
|
}else{
|
|
Tcl_Obj *pVar = Tcl_GetObjResult(p->interp);
|
|
int n;
|
|
u8 *data;
|
|
char *zType = pVar->typePtr ? pVar->typePtr->name : "";
|
|
char c = zType[0];
|
|
if( c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0 ){
|
|
/* Only return a BLOB type if the Tcl variable is a bytearray and
|
|
** has no string representation. */
|
|
data = Tcl_GetByteArrayFromObj(pVar, &n);
|
|
sqlite3_result_blob(context, data, n, SQLITE_TRANSIENT);
|
|
}else if( (c=='b' && strcmp(zType,"boolean")==0) ||
|
|
(c=='i' && strcmp(zType,"int")==0) ){
|
|
Tcl_GetIntFromObj(0, pVar, &n);
|
|
sqlite3_result_int(context, n);
|
|
}else if( c=='d' && strcmp(zType,"double")==0 ){
|
|
double r;
|
|
Tcl_GetDoubleFromObj(0, pVar, &r);
|
|
sqlite3_result_double(context, r);
|
|
}else if( c=='w' && strcmp(zType,"wideInt")==0 ){
|
|
Tcl_WideInt v;
|
|
Tcl_GetWideIntFromObj(0, pVar, &v);
|
|
sqlite3_result_int64(context, v);
|
|
}else{
|
|
data = (unsigned char *)Tcl_GetStringFromObj(pVar, &n);
|
|
sqlite3_result_text(context, (char *)data, n, SQLITE_TRANSIENT);
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef SQLITE_OMIT_AUTHORIZATION
|
|
/*
|
|
** This is the authentication function. It appends the authentication
|
|
** type code and the two arguments to zCmd[] then invokes the result
|
|
** on the interpreter. The reply is examined to determine if the
|
|
** authentication fails or succeeds.
|
|
*/
|
|
static int auth_callback(
|
|
void *pArg,
|
|
int code,
|
|
const char *zArg1,
|
|
const char *zArg2,
|
|
const char *zArg3,
|
|
const char *zArg4
|
|
){
|
|
char *zCode;
|
|
Tcl_DString str;
|
|
int rc;
|
|
const char *zReply;
|
|
SqliteDb *pDb = (SqliteDb*)pArg;
|
|
|
|
switch( code ){
|
|
case SQLITE_COPY : zCode="SQLITE_COPY"; break;
|
|
case SQLITE_CREATE_INDEX : zCode="SQLITE_CREATE_INDEX"; break;
|
|
case SQLITE_CREATE_TABLE : zCode="SQLITE_CREATE_TABLE"; break;
|
|
case SQLITE_CREATE_TEMP_INDEX : zCode="SQLITE_CREATE_TEMP_INDEX"; break;
|
|
case SQLITE_CREATE_TEMP_TABLE : zCode="SQLITE_CREATE_TEMP_TABLE"; break;
|
|
case SQLITE_CREATE_TEMP_TRIGGER: zCode="SQLITE_CREATE_TEMP_TRIGGER"; break;
|
|
case SQLITE_CREATE_TEMP_VIEW : zCode="SQLITE_CREATE_TEMP_VIEW"; break;
|
|
case SQLITE_CREATE_TRIGGER : zCode="SQLITE_CREATE_TRIGGER"; break;
|
|
case SQLITE_CREATE_VIEW : zCode="SQLITE_CREATE_VIEW"; break;
|
|
case SQLITE_DELETE : zCode="SQLITE_DELETE"; break;
|
|
case SQLITE_DROP_INDEX : zCode="SQLITE_DROP_INDEX"; break;
|
|
case SQLITE_DROP_TABLE : zCode="SQLITE_DROP_TABLE"; break;
|
|
case SQLITE_DROP_TEMP_INDEX : zCode="SQLITE_DROP_TEMP_INDEX"; break;
|
|
case SQLITE_DROP_TEMP_TABLE : zCode="SQLITE_DROP_TEMP_TABLE"; break;
|
|
case SQLITE_DROP_TEMP_TRIGGER : zCode="SQLITE_DROP_TEMP_TRIGGER"; break;
|
|
case SQLITE_DROP_TEMP_VIEW : zCode="SQLITE_DROP_TEMP_VIEW"; break;
|
|
case SQLITE_DROP_TRIGGER : zCode="SQLITE_DROP_TRIGGER"; break;
|
|
case SQLITE_DROP_VIEW : zCode="SQLITE_DROP_VIEW"; break;
|
|
case SQLITE_INSERT : zCode="SQLITE_INSERT"; break;
|
|
case SQLITE_PRAGMA : zCode="SQLITE_PRAGMA"; break;
|
|
case SQLITE_READ : zCode="SQLITE_READ"; break;
|
|
case SQLITE_SELECT : zCode="SQLITE_SELECT"; break;
|
|
case SQLITE_TRANSACTION : zCode="SQLITE_TRANSACTION"; break;
|
|
case SQLITE_UPDATE : zCode="SQLITE_UPDATE"; break;
|
|
case SQLITE_ATTACH : zCode="SQLITE_ATTACH"; break;
|
|
case SQLITE_DETACH : zCode="SQLITE_DETACH"; break;
|
|
case SQLITE_ALTER_TABLE : zCode="SQLITE_ALTER_TABLE"; break;
|
|
case SQLITE_REINDEX : zCode="SQLITE_REINDEX"; break;
|
|
case SQLITE_ANALYZE : zCode="SQLITE_ANALYZE"; break;
|
|
default : zCode="????"; break;
|
|
}
|
|
Tcl_DStringInit(&str);
|
|
Tcl_DStringAppend(&str, pDb->zAuth, -1);
|
|
Tcl_DStringAppendElement(&str, zCode);
|
|
Tcl_DStringAppendElement(&str, zArg1 ? zArg1 : "");
|
|
Tcl_DStringAppendElement(&str, zArg2 ? zArg2 : "");
|
|
Tcl_DStringAppendElement(&str, zArg3 ? zArg3 : "");
|
|
Tcl_DStringAppendElement(&str, zArg4 ? zArg4 : "");
|
|
rc = Tcl_GlobalEval(pDb->interp, Tcl_DStringValue(&str));
|
|
Tcl_DStringFree(&str);
|
|
zReply = Tcl_GetStringResult(pDb->interp);
|
|
if( strcmp(zReply,"SQLITE_OK")==0 ){
|
|
rc = SQLITE_OK;
|
|
}else if( strcmp(zReply,"SQLITE_DENY")==0 ){
|
|
rc = SQLITE_DENY;
|
|
}else if( strcmp(zReply,"SQLITE_IGNORE")==0 ){
|
|
rc = SQLITE_IGNORE;
|
|
}else{
|
|
rc = 999;
|
|
}
|
|
return rc;
|
|
}
|
|
#endif /* SQLITE_OMIT_AUTHORIZATION */
|
|
|
|
/*
|
|
** zText is a pointer to text obtained via an sqlite3_result_text()
|
|
** or similar interface. This routine returns a Tcl string object,
|
|
** reference count set to 0, containing the text. If a translation
|
|
** between iso8859 and UTF-8 is required, it is preformed.
|
|
*/
|
|
static Tcl_Obj *dbTextToObj(char const *zText){
|
|
Tcl_Obj *pVal;
|
|
#ifdef UTF_TRANSLATION_NEEDED
|
|
Tcl_DString dCol;
|
|
Tcl_DStringInit(&dCol);
|
|
Tcl_ExternalToUtfDString(NULL, zText, -1, &dCol);
|
|
pVal = Tcl_NewStringObj(Tcl_DStringValue(&dCol), -1);
|
|
Tcl_DStringFree(&dCol);
|
|
#else
|
|
pVal = Tcl_NewStringObj(zText, -1);
|
|
#endif
|
|
return pVal;
|
|
}
|
|
|
|
/*
|
|
** This routine reads a line of text from FILE in, stores
|
|
** the text in memory obtained from malloc() and returns a pointer
|
|
** to the text. NULL is returned at end of file, or if malloc()
|
|
** fails.
|
|
**
|
|
** The interface is like "readline" but no command-line editing
|
|
** is done.
|
|
**
|
|
** copied from shell.c from '.import' command
|
|
*/
|
|
static char *local_getline(char *zPrompt, FILE *in){
|
|
char *zLine;
|
|
int nLine;
|
|
int n;
|
|
int eol;
|
|
|
|
nLine = 100;
|
|
zLine = malloc( nLine );
|
|
if( zLine==0 ) return 0;
|
|
n = 0;
|
|
eol = 0;
|
|
while( !eol ){
|
|
if( n+100>nLine ){
|
|
nLine = nLine*2 + 100;
|
|
zLine = realloc(zLine, nLine);
|
|
if( zLine==0 ) return 0;
|
|
}
|
|
if( fgets(&zLine[n], nLine - n, in)==0 ){
|
|
if( n==0 ){
|
|
free(zLine);
|
|
return 0;
|
|
}
|
|
zLine[n] = 0;
|
|
eol = 1;
|
|
break;
|
|
}
|
|
while( zLine[n] ){ n++; }
|
|
if( n>0 && zLine[n-1]=='\n' ){
|
|
n--;
|
|
zLine[n] = 0;
|
|
eol = 1;
|
|
}
|
|
}
|
|
zLine = realloc( zLine, n+1 );
|
|
return zLine;
|
|
}
|
|
|
|
/*
|
|
** The "sqlite" command below creates a new Tcl command for each
|
|
** connection it opens to an SQLite database. This routine is invoked
|
|
** whenever one of those connection-specific commands is executed
|
|
** in Tcl. For example, if you run Tcl code like this:
|
|
**
|
|
** sqlite3 db1 "my_database"
|
|
** db1 close
|
|
**
|
|
** The first command opens a connection to the "my_database" database
|
|
** and calls that connection "db1". The second command causes this
|
|
** subroutine to be invoked.
|
|
*/
|
|
static int DbObjCmd(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
|
|
SqliteDb *pDb = (SqliteDb*)cd;
|
|
int choice;
|
|
int rc = TCL_OK;
|
|
static const char *DB_strs[] = {
|
|
"authorizer", "busy", "cache",
|
|
"changes", "close", "collate",
|
|
"collation_needed", "commit_hook", "complete",
|
|
"copy", "errorcode", "eval",
|
|
"exists", "function", "last_insert_rowid",
|
|
"nullvalue", "onecolumn", "profile",
|
|
"progress", "rekey", "rollback_hook",
|
|
"timeout", "total_changes", "trace",
|
|
"transaction", "update_hook", "version",
|
|
0
|
|
};
|
|
enum DB_enum {
|
|
DB_AUTHORIZER, DB_BUSY, DB_CACHE,
|
|
DB_CHANGES, DB_CLOSE, DB_COLLATE,
|
|
DB_COLLATION_NEEDED, DB_COMMIT_HOOK, DB_COMPLETE,
|
|
DB_COPY, DB_ERRORCODE, DB_EVAL,
|
|
DB_EXISTS, DB_FUNCTION, DB_LAST_INSERT_ROWID,
|
|
DB_NULLVALUE, DB_ONECOLUMN, DB_PROFILE,
|
|
DB_PROGRESS, DB_REKEY, DB_ROLLBACK_HOOK,
|
|
DB_TIMEOUT, DB_TOTAL_CHANGES, DB_TRACE,
|
|
DB_TRANSACTION, DB_UPDATE_HOOK, DB_VERSION
|
|
};
|
|
/* don't leave trailing commas on DB_enum, it confuses the AIX xlc compiler */
|
|
|
|
if( objc<2 ){
|
|
Tcl_WrongNumArgs(interp, 1, objv, "SUBCOMMAND ...");
|
|
return TCL_ERROR;
|
|
}
|
|
if( Tcl_GetIndexFromObj(interp, objv[1], DB_strs, "option", 0, &choice) ){
|
|
return TCL_ERROR;
|
|
}
|
|
|
|
switch( (enum DB_enum)choice ){
|
|
|
|
/* $db authorizer ?CALLBACK?
|
|
**
|
|
** Invoke the given callback to authorize each SQL operation as it is
|
|
** compiled. 5 arguments are appended to the callback before it is
|
|
** invoked:
|
|
**
|
|
** (1) The authorization type (ex: SQLITE_CREATE_TABLE, SQLITE_INSERT, ...)
|
|
** (2) First descriptive name (depends on authorization type)
|
|
** (3) Second descriptive name
|
|
** (4) Name of the database (ex: "main", "temp")
|
|
** (5) Name of trigger that is doing the access
|
|
**
|
|
** The callback should return on of the following strings: SQLITE_OK,
|
|
** SQLITE_IGNORE, or SQLITE_DENY. Any other return value is an error.
|
|
**
|
|
** If this method is invoked with no arguments, the current authorization
|
|
** callback string is returned.
|
|
*/
|
|
case DB_AUTHORIZER: {
|
|
#ifdef SQLITE_OMIT_AUTHORIZATION
|
|
Tcl_AppendResult(interp, "authorization not available in this build", 0);
|
|
return TCL_ERROR;
|
|
#else
|
|
if( objc>3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
|
|
return TCL_ERROR;
|
|
}else if( objc==2 ){
|
|
if( pDb->zAuth ){
|
|
Tcl_AppendResult(interp, pDb->zAuth, 0);
|
|
}
|
|
}else{
|
|
char *zAuth;
|
|
int len;
|
|
if( pDb->zAuth ){
|
|
Tcl_Free(pDb->zAuth);
|
|
}
|
|
zAuth = Tcl_GetStringFromObj(objv[2], &len);
|
|
if( zAuth && len>0 ){
|
|
pDb->zAuth = Tcl_Alloc( len + 1 );
|
|
strcpy(pDb->zAuth, zAuth);
|
|
}else{
|
|
pDb->zAuth = 0;
|
|
}
|
|
if( pDb->zAuth ){
|
|
pDb->interp = interp;
|
|
sqlite3_set_authorizer(pDb->db, auth_callback, pDb);
|
|
}else{
|
|
sqlite3_set_authorizer(pDb->db, 0, 0);
|
|
}
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
/* $db busy ?CALLBACK?
|
|
**
|
|
** Invoke the given callback if an SQL statement attempts to open
|
|
** a locked database file.
|
|
*/
|
|
case DB_BUSY: {
|
|
if( objc>3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "CALLBACK");
|
|
return TCL_ERROR;
|
|
}else if( objc==2 ){
|
|
if( pDb->zBusy ){
|
|
Tcl_AppendResult(interp, pDb->zBusy, 0);
|
|
}
|
|
}else{
|
|
char *zBusy;
|
|
int len;
|
|
if( pDb->zBusy ){
|
|
Tcl_Free(pDb->zBusy);
|
|
}
|
|
zBusy = Tcl_GetStringFromObj(objv[2], &len);
|
|
if( zBusy && len>0 ){
|
|
pDb->zBusy = Tcl_Alloc( len + 1 );
|
|
strcpy(pDb->zBusy, zBusy);
|
|
}else{
|
|
pDb->zBusy = 0;
|
|
}
|
|
if( pDb->zBusy ){
|
|
pDb->interp = interp;
|
|
sqlite3_busy_handler(pDb->db, DbBusyHandler, pDb);
|
|
}else{
|
|
sqlite3_busy_handler(pDb->db, 0, 0);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* $db cache flush
|
|
** $db cache size n
|
|
**
|
|
** Flush the prepared statement cache, or set the maximum number of
|
|
** cached statements.
|
|
*/
|
|
case DB_CACHE: {
|
|
char *subCmd;
|
|
int n;
|
|
|
|
if( objc<=2 ){
|
|
Tcl_WrongNumArgs(interp, 1, objv, "cache option ?arg?");
|
|
return TCL_ERROR;
|
|
}
|
|
subCmd = Tcl_GetStringFromObj( objv[2], 0 );
|
|
if( *subCmd=='f' && strcmp(subCmd,"flush")==0 ){
|
|
if( objc!=3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "flush");
|
|
return TCL_ERROR;
|
|
}else{
|
|
flushStmtCache( pDb );
|
|
}
|
|
}else if( *subCmd=='s' && strcmp(subCmd,"size")==0 ){
|
|
if( objc!=4 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "size n");
|
|
return TCL_ERROR;
|
|
}else{
|
|
if( TCL_ERROR==Tcl_GetIntFromObj(interp, objv[3], &n) ){
|
|
Tcl_AppendResult( interp, "cannot convert \"",
|
|
Tcl_GetStringFromObj(objv[3],0), "\" to integer", 0);
|
|
return TCL_ERROR;
|
|
}else{
|
|
if( n<0 ){
|
|
flushStmtCache( pDb );
|
|
n = 0;
|
|
}else if( n>MAX_PREPARED_STMTS ){
|
|
n = MAX_PREPARED_STMTS;
|
|
}
|
|
pDb->maxStmt = n;
|
|
}
|
|
}
|
|
}else{
|
|
Tcl_AppendResult( interp, "bad option \"",
|
|
Tcl_GetStringFromObj(objv[0],0), "\": must be flush or size", 0);
|
|
return TCL_ERROR;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* $db changes
|
|
**
|
|
** Return the number of rows that were modified, inserted, or deleted by
|
|
** the most recent INSERT, UPDATE or DELETE statement, not including
|
|
** any changes made by trigger programs.
|
|
*/
|
|
case DB_CHANGES: {
|
|
Tcl_Obj *pResult;
|
|
if( objc!=2 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "");
|
|
return TCL_ERROR;
|
|
}
|
|
pResult = Tcl_GetObjResult(interp);
|
|
Tcl_SetIntObj(pResult, sqlite3_changes(pDb->db));
|
|
break;
|
|
}
|
|
|
|
/* $db close
|
|
**
|
|
** Shutdown the database
|
|
*/
|
|
case DB_CLOSE: {
|
|
Tcl_DeleteCommand(interp, Tcl_GetStringFromObj(objv[0], 0));
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db collate NAME SCRIPT
|
|
**
|
|
** Create a new SQL collation function called NAME. Whenever
|
|
** that function is called, invoke SCRIPT to evaluate the function.
|
|
*/
|
|
case DB_COLLATE: {
|
|
SqlCollate *pCollate;
|
|
char *zName;
|
|
char *zScript;
|
|
int nScript;
|
|
if( objc!=4 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "NAME SCRIPT");
|
|
return TCL_ERROR;
|
|
}
|
|
zName = Tcl_GetStringFromObj(objv[2], 0);
|
|
zScript = Tcl_GetStringFromObj(objv[3], &nScript);
|
|
pCollate = (SqlCollate*)Tcl_Alloc( sizeof(*pCollate) + nScript + 1 );
|
|
if( pCollate==0 ) return TCL_ERROR;
|
|
pCollate->interp = interp;
|
|
pCollate->pNext = pDb->pCollate;
|
|
pCollate->zScript = (char*)&pCollate[1];
|
|
pDb->pCollate = pCollate;
|
|
strcpy(pCollate->zScript, zScript);
|
|
if( sqlite3_create_collation(pDb->db, zName, SQLITE_UTF8,
|
|
pCollate, tclSqlCollate) ){
|
|
Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE);
|
|
return TCL_ERROR;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db collation_needed SCRIPT
|
|
**
|
|
** Create a new SQL collation function called NAME. Whenever
|
|
** that function is called, invoke SCRIPT to evaluate the function.
|
|
*/
|
|
case DB_COLLATION_NEEDED: {
|
|
if( objc!=3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "SCRIPT");
|
|
return TCL_ERROR;
|
|
}
|
|
if( pDb->pCollateNeeded ){
|
|
Tcl_DecrRefCount(pDb->pCollateNeeded);
|
|
}
|
|
pDb->pCollateNeeded = Tcl_DuplicateObj(objv[2]);
|
|
Tcl_IncrRefCount(pDb->pCollateNeeded);
|
|
sqlite3_collation_needed(pDb->db, pDb, tclCollateNeeded);
|
|
break;
|
|
}
|
|
|
|
/* $db commit_hook ?CALLBACK?
|
|
**
|
|
** Invoke the given callback just before committing every SQL transaction.
|
|
** If the callback throws an exception or returns non-zero, then the
|
|
** transaction is aborted. If CALLBACK is an empty string, the callback
|
|
** is disabled.
|
|
*/
|
|
case DB_COMMIT_HOOK: {
|
|
if( objc>3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
|
|
return TCL_ERROR;
|
|
}else if( objc==2 ){
|
|
if( pDb->zCommit ){
|
|
Tcl_AppendResult(interp, pDb->zCommit, 0);
|
|
}
|
|
}else{
|
|
char *zCommit;
|
|
int len;
|
|
if( pDb->zCommit ){
|
|
Tcl_Free(pDb->zCommit);
|
|
}
|
|
zCommit = Tcl_GetStringFromObj(objv[2], &len);
|
|
if( zCommit && len>0 ){
|
|
pDb->zCommit = Tcl_Alloc( len + 1 );
|
|
strcpy(pDb->zCommit, zCommit);
|
|
}else{
|
|
pDb->zCommit = 0;
|
|
}
|
|
if( pDb->zCommit ){
|
|
pDb->interp = interp;
|
|
sqlite3_commit_hook(pDb->db, DbCommitHandler, pDb);
|
|
}else{
|
|
sqlite3_commit_hook(pDb->db, 0, 0);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* $db complete SQL
|
|
**
|
|
** Return TRUE if SQL is a complete SQL statement. Return FALSE if
|
|
** additional lines of input are needed. This is similar to the
|
|
** built-in "info complete" command of Tcl.
|
|
*/
|
|
case DB_COMPLETE: {
|
|
#ifndef SQLITE_OMIT_COMPLETE
|
|
Tcl_Obj *pResult;
|
|
int isComplete;
|
|
if( objc!=3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "SQL");
|
|
return TCL_ERROR;
|
|
}
|
|
isComplete = sqlite3_complete( Tcl_GetStringFromObj(objv[2], 0) );
|
|
pResult = Tcl_GetObjResult(interp);
|
|
Tcl_SetBooleanObj(pResult, isComplete);
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
/* $db copy conflict-algorithm table filename ?SEPARATOR? ?NULLINDICATOR?
|
|
**
|
|
** Copy data into table from filename, optionally using SEPARATOR
|
|
** as column separators. If a column contains a null string, or the
|
|
** value of NULLINDICATOR, a NULL is inserted for the column.
|
|
** conflict-algorithm is one of the sqlite conflict algorithms:
|
|
** rollback, abort, fail, ignore, replace
|
|
** On success, return the number of lines processed, not necessarily same
|
|
** as 'db changes' due to conflict-algorithm selected.
|
|
**
|
|
** This code is basically an implementation/enhancement of
|
|
** the sqlite3 shell.c ".import" command.
|
|
**
|
|
** This command usage is equivalent to the sqlite2.x COPY statement,
|
|
** which imports file data into a table using the PostgreSQL COPY file format:
|
|
** $db copy $conflit_algo $table_name $filename \t \\N
|
|
*/
|
|
case DB_COPY: {
|
|
char *zTable; /* Insert data into this table */
|
|
char *zFile; /* The file from which to extract data */
|
|
char *zConflict; /* The conflict algorithm to use */
|
|
sqlite3_stmt *pStmt; /* A statement */
|
|
int rc; /* Result code */
|
|
int nCol; /* Number of columns in the table */
|
|
int nByte; /* Number of bytes in an SQL string */
|
|
int i, j; /* Loop counters */
|
|
int nSep; /* Number of bytes in zSep[] */
|
|
int nNull; /* Number of bytes in zNull[] */
|
|
char *zSql; /* An SQL statement */
|
|
char *zLine; /* A single line of input from the file */
|
|
char **azCol; /* zLine[] broken up into columns */
|
|
char *zCommit; /* How to commit changes */
|
|
FILE *in; /* The input file */
|
|
int lineno = 0; /* Line number of input file */
|
|
char zLineNum[80]; /* Line number print buffer */
|
|
Tcl_Obj *pResult; /* interp result */
|
|
|
|
char *zSep;
|
|
char *zNull;
|
|
if( objc<5 || objc>7 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv,
|
|
"CONFLICT-ALGORITHM TABLE FILENAME ?SEPARATOR? ?NULLINDICATOR?");
|
|
return TCL_ERROR;
|
|
}
|
|
if( objc>=6 ){
|
|
zSep = Tcl_GetStringFromObj(objv[5], 0);
|
|
}else{
|
|
zSep = "\t";
|
|
}
|
|
if( objc>=7 ){
|
|
zNull = Tcl_GetStringFromObj(objv[6], 0);
|
|
}else{
|
|
zNull = "";
|
|
}
|
|
zConflict = Tcl_GetStringFromObj(objv[2], 0);
|
|
zTable = Tcl_GetStringFromObj(objv[3], 0);
|
|
zFile = Tcl_GetStringFromObj(objv[4], 0);
|
|
nSep = strlen(zSep);
|
|
nNull = strlen(zNull);
|
|
if( nSep==0 ){
|
|
Tcl_AppendResult(interp, "Error: non-null separator required for copy", 0);
|
|
return TCL_ERROR;
|
|
}
|
|
if(sqlite3StrICmp(zConflict, "rollback") != 0 &&
|
|
sqlite3StrICmp(zConflict, "abort" ) != 0 &&
|
|
sqlite3StrICmp(zConflict, "fail" ) != 0 &&
|
|
sqlite3StrICmp(zConflict, "ignore" ) != 0 &&
|
|
sqlite3StrICmp(zConflict, "replace" ) != 0 ) {
|
|
Tcl_AppendResult(interp, "Error: \"", zConflict,
|
|
"\", conflict-algorithm must be one of: rollback, "
|
|
"abort, fail, ignore, or replace", 0);
|
|
return TCL_ERROR;
|
|
}
|
|
zSql = sqlite3_mprintf("SELECT * FROM '%q'", zTable);
|
|
if( zSql==0 ){
|
|
Tcl_AppendResult(interp, "Error: no such table: ", zTable, 0);
|
|
return TCL_ERROR;
|
|
}
|
|
nByte = strlen(zSql);
|
|
rc = sqlite3_prepare(pDb->db, zSql, 0, &pStmt, 0);
|
|
sqlite3_free(zSql);
|
|
if( rc ){
|
|
Tcl_AppendResult(interp, "Error: ", sqlite3_errmsg(pDb->db), 0);
|
|
nCol = 0;
|
|
}else{
|
|
nCol = sqlite3_column_count(pStmt);
|
|
}
|
|
sqlite3_finalize(pStmt);
|
|
if( nCol==0 ) {
|
|
return TCL_ERROR;
|
|
}
|
|
zSql = malloc( nByte + 50 + nCol*2 );
|
|
if( zSql==0 ) {
|
|
Tcl_AppendResult(interp, "Error: can't malloc()", 0);
|
|
return TCL_ERROR;
|
|
}
|
|
sqlite3_snprintf(nByte+50, zSql, "INSERT OR %q INTO '%q' VALUES(?",
|
|
zConflict, zTable);
|
|
j = strlen(zSql);
|
|
for(i=1; i<nCol; i++){
|
|
zSql[j++] = ',';
|
|
zSql[j++] = '?';
|
|
}
|
|
zSql[j++] = ')';
|
|
zSql[j] = 0;
|
|
rc = sqlite3_prepare(pDb->db, zSql, 0, &pStmt, 0);
|
|
free(zSql);
|
|
if( rc ){
|
|
Tcl_AppendResult(interp, "Error: ", sqlite3_errmsg(pDb->db), 0);
|
|
sqlite3_finalize(pStmt);
|
|
return TCL_ERROR;
|
|
}
|
|
in = fopen(zFile, "rb");
|
|
if( in==0 ){
|
|
Tcl_AppendResult(interp, "Error: cannot open file: ", zFile, NULL);
|
|
sqlite3_finalize(pStmt);
|
|
return TCL_ERROR;
|
|
}
|
|
azCol = malloc( sizeof(azCol[0])*(nCol+1) );
|
|
if( azCol==0 ) {
|
|
Tcl_AppendResult(interp, "Error: can't malloc()", 0);
|
|
fclose(in);
|
|
return TCL_ERROR;
|
|
}
|
|
(void)sqlite3_exec(pDb->db, "BEGIN", 0, 0, 0);
|
|
zCommit = "COMMIT";
|
|
while( (zLine = local_getline(0, in))!=0 ){
|
|
char *z;
|
|
i = 0;
|
|
lineno++;
|
|
azCol[0] = zLine;
|
|
for(i=0, z=zLine; *z; z++){
|
|
if( *z==zSep[0] && strncmp(z, zSep, nSep)==0 ){
|
|
*z = 0;
|
|
i++;
|
|
if( i<nCol ){
|
|
azCol[i] = &z[nSep];
|
|
z += nSep-1;
|
|
}
|
|
}
|
|
}
|
|
if( i+1!=nCol ){
|
|
char *zErr;
|
|
zErr = malloc(200 + strlen(zFile));
|
|
sprintf(zErr,
|
|
"Error: %s line %d: expected %d columns of data but found %d",
|
|
zFile, lineno, nCol, i+1);
|
|
Tcl_AppendResult(interp, zErr, 0);
|
|
free(zErr);
|
|
zCommit = "ROLLBACK";
|
|
break;
|
|
}
|
|
for(i=0; i<nCol; i++){
|
|
/* check for null data, if so, bind as null */
|
|
if ((nNull>0 && strcmp(azCol[i], zNull)==0) || strlen(azCol[i])==0) {
|
|
sqlite3_bind_null(pStmt, i+1);
|
|
}else{
|
|
sqlite3_bind_text(pStmt, i+1, azCol[i], -1, SQLITE_STATIC);
|
|
}
|
|
}
|
|
sqlite3_step(pStmt);
|
|
rc = sqlite3_reset(pStmt);
|
|
free(zLine);
|
|
if( rc!=SQLITE_OK ){
|
|
Tcl_AppendResult(interp,"Error: ", sqlite3_errmsg(pDb->db), 0);
|
|
zCommit = "ROLLBACK";
|
|
break;
|
|
}
|
|
}
|
|
free(azCol);
|
|
fclose(in);
|
|
sqlite3_finalize(pStmt);
|
|
(void)sqlite3_exec(pDb->db, zCommit, 0, 0, 0);
|
|
|
|
if( zCommit[0] == 'C' ){
|
|
/* success, set result as number of lines processed */
|
|
pResult = Tcl_GetObjResult(interp);
|
|
Tcl_SetIntObj(pResult, lineno);
|
|
rc = TCL_OK;
|
|
}else{
|
|
/* failure, append lineno where failed */
|
|
sprintf(zLineNum,"%d",lineno);
|
|
Tcl_AppendResult(interp,", failed while processing line: ",zLineNum,0);
|
|
rc = TCL_ERROR;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db errorcode
|
|
**
|
|
** Return the numeric error code that was returned by the most recent
|
|
** call to sqlite3_exec().
|
|
*/
|
|
case DB_ERRORCODE: {
|
|
Tcl_SetObjResult(interp, Tcl_NewIntObj(sqlite3_errcode(pDb->db)));
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db eval $sql ?array? ?{ ...code... }?
|
|
** $db onecolumn $sql
|
|
**
|
|
** The SQL statement in $sql is evaluated. For each row, the values are
|
|
** placed in elements of the array named "array" and ...code... is executed.
|
|
** If "array" and "code" are omitted, then no callback is every invoked.
|
|
** If "array" is an empty string, then the values are placed in variables
|
|
** that have the same name as the fields extracted by the query.
|
|
**
|
|
** The onecolumn method is the equivalent of:
|
|
** lindex [$db eval $sql] 0
|
|
*/
|
|
case DB_ONECOLUMN:
|
|
case DB_EVAL:
|
|
case DB_EXISTS: {
|
|
char const *zSql; /* Next SQL statement to execute */
|
|
char const *zLeft; /* What is left after first stmt in zSql */
|
|
sqlite3_stmt *pStmt; /* Compiled SQL statment */
|
|
Tcl_Obj *pArray; /* Name of array into which results are written */
|
|
Tcl_Obj *pScript; /* Script to run for each result set */
|
|
Tcl_Obj **apParm; /* Parameters that need a Tcl_DecrRefCount() */
|
|
int nParm; /* Number of entries used in apParm[] */
|
|
Tcl_Obj *aParm[10]; /* Static space for apParm[] in the common case */
|
|
Tcl_Obj *pRet; /* Value to be returned */
|
|
SqlPreparedStmt *pPreStmt; /* Pointer to a prepared statement */
|
|
int rc2;
|
|
|
|
if( choice==DB_EVAL ){
|
|
if( objc<3 || objc>5 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "SQL ?ARRAY-NAME? ?SCRIPT?");
|
|
return TCL_ERROR;
|
|
}
|
|
pRet = Tcl_NewObj();
|
|
Tcl_IncrRefCount(pRet);
|
|
}else{
|
|
if( objc!=3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "SQL");
|
|
return TCL_ERROR;
|
|
}
|
|
if( choice==DB_EXISTS ){
|
|
pRet = Tcl_NewBooleanObj(0);
|
|
Tcl_IncrRefCount(pRet);
|
|
}else{
|
|
pRet = 0;
|
|
}
|
|
}
|
|
if( objc==3 ){
|
|
pArray = pScript = 0;
|
|
}else if( objc==4 ){
|
|
pArray = 0;
|
|
pScript = objv[3];
|
|
}else{
|
|
pArray = objv[3];
|
|
if( Tcl_GetString(pArray)[0]==0 ) pArray = 0;
|
|
pScript = objv[4];
|
|
}
|
|
|
|
Tcl_IncrRefCount(objv[2]);
|
|
zSql = Tcl_GetStringFromObj(objv[2], 0);
|
|
while( rc==TCL_OK && zSql[0] ){
|
|
int i; /* Loop counter */
|
|
int nVar; /* Number of bind parameters in the pStmt */
|
|
int nCol; /* Number of columns in the result set */
|
|
Tcl_Obj **apColName = 0; /* Array of column names */
|
|
int len; /* String length of zSql */
|
|
|
|
/* Try to find a SQL statement that has already been compiled and
|
|
** which matches the next sequence of SQL.
|
|
*/
|
|
pStmt = 0;
|
|
pPreStmt = pDb->stmtList;
|
|
len = strlen(zSql);
|
|
if( pPreStmt && sqlite3_expired(pPreStmt->pStmt) ){
|
|
flushStmtCache(pDb);
|
|
pPreStmt = 0;
|
|
}
|
|
for(; pPreStmt; pPreStmt=pPreStmt->pNext){
|
|
int n = pPreStmt->nSql;
|
|
if( len>=n
|
|
&& memcmp(pPreStmt->zSql, zSql, n)==0
|
|
&& (zSql[n]==0 || zSql[n-1]==';')
|
|
){
|
|
pStmt = pPreStmt->pStmt;
|
|
zLeft = &zSql[pPreStmt->nSql];
|
|
|
|
/* When a prepared statement is found, unlink it from the
|
|
** cache list. It will later be added back to the beginning
|
|
** of the cache list in order to implement LRU replacement.
|
|
*/
|
|
if( pPreStmt->pPrev ){
|
|
pPreStmt->pPrev->pNext = pPreStmt->pNext;
|
|
}else{
|
|
pDb->stmtList = pPreStmt->pNext;
|
|
}
|
|
if( pPreStmt->pNext ){
|
|
pPreStmt->pNext->pPrev = pPreStmt->pPrev;
|
|
}else{
|
|
pDb->stmtLast = pPreStmt->pPrev;
|
|
}
|
|
pDb->nStmt--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If no prepared statement was found. Compile the SQL text
|
|
*/
|
|
if( pStmt==0 ){
|
|
if( SQLITE_OK!=sqlite3_prepare(pDb->db, zSql, -1, &pStmt, &zLeft) ){
|
|
Tcl_SetObjResult(interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
|
|
rc = TCL_ERROR;
|
|
break;
|
|
}
|
|
if( pStmt==0 ){
|
|
if( SQLITE_OK!=sqlite3_errcode(pDb->db) ){
|
|
/* A compile-time error in the statement
|
|
*/
|
|
Tcl_SetObjResult(interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
|
|
rc = TCL_ERROR;
|
|
break;
|
|
}else{
|
|
/* The statement was a no-op. Continue to the next statement
|
|
** in the SQL string.
|
|
*/
|
|
zSql = zLeft;
|
|
continue;
|
|
}
|
|
}
|
|
assert( pPreStmt==0 );
|
|
}
|
|
|
|
/* Bind values to parameters that begin with $ or :
|
|
*/
|
|
nVar = sqlite3_bind_parameter_count(pStmt);
|
|
nParm = 0;
|
|
if( nVar>sizeof(aParm)/sizeof(aParm[0]) ){
|
|
apParm = (Tcl_Obj**)Tcl_Alloc(nVar*sizeof(apParm[0]));
|
|
}else{
|
|
apParm = aParm;
|
|
}
|
|
for(i=1; i<=nVar; i++){
|
|
const char *zVar = sqlite3_bind_parameter_name(pStmt, i);
|
|
if( zVar!=0 && (zVar[0]=='$' || zVar[0]==':') ){
|
|
Tcl_Obj *pVar = Tcl_GetVar2Ex(interp, &zVar[1], 0, 0);
|
|
if( pVar ){
|
|
int n;
|
|
u8 *data;
|
|
char *zType = pVar->typePtr ? pVar->typePtr->name : "";
|
|
char c = zType[0];
|
|
if( c=='b' && strcmp(zType,"bytearray")==0 && pVar->bytes==0 ){
|
|
/* Only load a BLOB type if the Tcl variable is a bytearray and
|
|
** has no string representation. */
|
|
data = Tcl_GetByteArrayFromObj(pVar, &n);
|
|
sqlite3_bind_blob(pStmt, i, data, n, SQLITE_STATIC);
|
|
Tcl_IncrRefCount(pVar);
|
|
apParm[nParm++] = pVar;
|
|
}else if( (c=='b' && strcmp(zType,"boolean")==0) ||
|
|
(c=='i' && strcmp(zType,"int")==0) ){
|
|
Tcl_GetIntFromObj(interp, pVar, &n);
|
|
sqlite3_bind_int(pStmt, i, n);
|
|
}else if( c=='d' && strcmp(zType,"double")==0 ){
|
|
double r;
|
|
Tcl_GetDoubleFromObj(interp, pVar, &r);
|
|
sqlite3_bind_double(pStmt, i, r);
|
|
}else if( c=='w' && strcmp(zType,"wideInt")==0 ){
|
|
Tcl_WideInt v;
|
|
Tcl_GetWideIntFromObj(interp, pVar, &v);
|
|
sqlite3_bind_int64(pStmt, i, v);
|
|
}else{
|
|
data = (unsigned char *)Tcl_GetStringFromObj(pVar, &n);
|
|
sqlite3_bind_text(pStmt, i, (char *)data, n, SQLITE_STATIC);
|
|
Tcl_IncrRefCount(pVar);
|
|
apParm[nParm++] = pVar;
|
|
}
|
|
}else{
|
|
sqlite3_bind_null( pStmt, i );
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Compute column names */
|
|
nCol = sqlite3_column_count(pStmt);
|
|
if( pScript ){
|
|
apColName = (Tcl_Obj**)Tcl_Alloc( sizeof(Tcl_Obj*)*nCol );
|
|
if( apColName==0 ) break;
|
|
for(i=0; i<nCol; i++){
|
|
apColName[i] = dbTextToObj(sqlite3_column_name(pStmt,i));
|
|
Tcl_IncrRefCount(apColName[i]);
|
|
}
|
|
}
|
|
|
|
/* If results are being stored in an array variable, then create
|
|
** the array(*) entry for that array
|
|
*/
|
|
if( pArray ){
|
|
Tcl_Obj *pColList = Tcl_NewObj();
|
|
Tcl_Obj *pStar = Tcl_NewStringObj("*", -1);
|
|
Tcl_IncrRefCount(pColList);
|
|
for(i=0; i<nCol; i++){
|
|
Tcl_ListObjAppendElement(interp, pColList, apColName[i]);
|
|
}
|
|
Tcl_ObjSetVar2(interp, pArray, pStar, pColList,0);
|
|
Tcl_DecrRefCount(pColList);
|
|
Tcl_DecrRefCount(pStar);
|
|
}
|
|
|
|
/* Execute the SQL
|
|
*/
|
|
while( rc==TCL_OK && pStmt && SQLITE_ROW==sqlite3_step(pStmt) ){
|
|
for(i=0; i<nCol; i++){
|
|
Tcl_Obj *pVal;
|
|
|
|
/* Set pVal to contain the i'th column of this row. */
|
|
switch( sqlite3_column_type(pStmt, i) ){
|
|
case SQLITE_BLOB: {
|
|
int bytes = sqlite3_column_bytes(pStmt, i);
|
|
pVal = Tcl_NewByteArrayObj(sqlite3_column_blob(pStmt, i), bytes);
|
|
break;
|
|
}
|
|
case SQLITE_INTEGER: {
|
|
sqlite_int64 v = sqlite3_column_int64(pStmt, i);
|
|
if( v>=-2147483647 && v<=2147483647 ){
|
|
pVal = Tcl_NewIntObj(v);
|
|
}else{
|
|
pVal = Tcl_NewWideIntObj(v);
|
|
}
|
|
break;
|
|
}
|
|
case SQLITE_FLOAT: {
|
|
double r = sqlite3_column_double(pStmt, i);
|
|
pVal = Tcl_NewDoubleObj(r);
|
|
break;
|
|
}
|
|
case SQLITE_NULL: {
|
|
pVal = dbTextToObj(pDb->zNull);
|
|
break;
|
|
}
|
|
default: {
|
|
pVal = dbTextToObj((char *)sqlite3_column_text(pStmt, i));
|
|
break;
|
|
}
|
|
}
|
|
|
|
if( pScript ){
|
|
if( pArray==0 ){
|
|
Tcl_ObjSetVar2(interp, apColName[i], 0, pVal, 0);
|
|
}else{
|
|
Tcl_ObjSetVar2(interp, pArray, apColName[i], pVal, 0);
|
|
}
|
|
}else if( choice==DB_ONECOLUMN ){
|
|
assert( pRet==0 );
|
|
if( pRet==0 ){
|
|
pRet = pVal;
|
|
Tcl_IncrRefCount(pRet);
|
|
}
|
|
rc = TCL_BREAK;
|
|
i = nCol;
|
|
}else if( choice==DB_EXISTS ){
|
|
Tcl_DecrRefCount(pRet);
|
|
pRet = Tcl_NewBooleanObj(1);
|
|
Tcl_IncrRefCount(pRet);
|
|
rc = TCL_BREAK;
|
|
i = nCol;
|
|
}else{
|
|
Tcl_ListObjAppendElement(interp, pRet, pVal);
|
|
}
|
|
}
|
|
|
|
if( pScript ){
|
|
rc = Tcl_EvalObjEx(interp, pScript, 0);
|
|
if( rc==TCL_CONTINUE ){
|
|
rc = TCL_OK;
|
|
}
|
|
}
|
|
}
|
|
if( rc==TCL_BREAK ){
|
|
rc = TCL_OK;
|
|
}
|
|
|
|
/* Free the column name objects */
|
|
if( pScript ){
|
|
for(i=0; i<nCol; i++){
|
|
Tcl_DecrRefCount(apColName[i]);
|
|
}
|
|
Tcl_Free((char*)apColName);
|
|
}
|
|
|
|
/* Free the bound string and blob parameters */
|
|
for(i=0; i<nParm; i++){
|
|
Tcl_DecrRefCount(apParm[i]);
|
|
}
|
|
if( apParm!=aParm ){
|
|
Tcl_Free((char*)apParm);
|
|
}
|
|
|
|
/* Reset the statement. If the result code is SQLITE_SCHEMA, then
|
|
** flush the statement cache and try the statement again.
|
|
*/
|
|
rc2 = sqlite3_reset(pStmt);
|
|
if( SQLITE_SCHEMA==rc2 ){
|
|
/* After a schema change, flush the cache and try to run the
|
|
** statement again
|
|
*/
|
|
flushStmtCache( pDb );
|
|
sqlite3_finalize(pStmt);
|
|
if( pPreStmt ) Tcl_Free((char*)pPreStmt);
|
|
continue;
|
|
}else if( SQLITE_OK!=rc2 ){
|
|
/* If a run-time error occurs, report the error and stop reading
|
|
** the SQL
|
|
*/
|
|
Tcl_SetObjResult(interp, dbTextToObj(sqlite3_errmsg(pDb->db)));
|
|
sqlite3_finalize(pStmt);
|
|
rc = TCL_ERROR;
|
|
if( pPreStmt ) Tcl_Free((char*)pPreStmt);
|
|
break;
|
|
}else if( pDb->maxStmt<=0 ){
|
|
/* If the cache is turned off, deallocated the statement */
|
|
if( pPreStmt ) Tcl_Free((char*)pPreStmt);
|
|
sqlite3_finalize(pStmt);
|
|
}else{
|
|
/* Everything worked and the cache is operational.
|
|
** Create a new SqlPreparedStmt structure if we need one.
|
|
** (If we already have one we can just reuse it.)
|
|
*/
|
|
if( pPreStmt==0 ){
|
|
len = zLeft - zSql;
|
|
pPreStmt = (SqlPreparedStmt*)Tcl_Alloc( sizeof(*pPreStmt) + len );
|
|
if( pPreStmt==0 ) return TCL_ERROR;
|
|
pPreStmt->pStmt = pStmt;
|
|
pPreStmt->nSql = len;
|
|
memcpy(pPreStmt->zSql, zSql, len);
|
|
pPreStmt->zSql[len] = 0;
|
|
}
|
|
|
|
/* Add the prepared statement to the beginning of the cache list
|
|
*/
|
|
pPreStmt->pNext = pDb->stmtList;
|
|
pPreStmt->pPrev = 0;
|
|
if( pDb->stmtList ){
|
|
pDb->stmtList->pPrev = pPreStmt;
|
|
}
|
|
pDb->stmtList = pPreStmt;
|
|
if( pDb->stmtLast==0 ){
|
|
assert( pDb->nStmt==0 );
|
|
pDb->stmtLast = pPreStmt;
|
|
}else{
|
|
assert( pDb->nStmt>0 );
|
|
}
|
|
pDb->nStmt++;
|
|
|
|
/* If we have too many statement in cache, remove the surplus from the
|
|
** end of the cache list.
|
|
*/
|
|
while( pDb->nStmt>pDb->maxStmt ){
|
|
sqlite3_finalize(pDb->stmtLast->pStmt);
|
|
pDb->stmtLast = pDb->stmtLast->pPrev;
|
|
Tcl_Free((char*)pDb->stmtLast->pNext);
|
|
pDb->stmtLast->pNext = 0;
|
|
pDb->nStmt--;
|
|
}
|
|
}
|
|
|
|
/* Proceed to the next statement */
|
|
zSql = zLeft;
|
|
}
|
|
Tcl_DecrRefCount(objv[2]);
|
|
|
|
if( pRet ){
|
|
if( rc==TCL_OK ){
|
|
Tcl_SetObjResult(interp, pRet);
|
|
}
|
|
Tcl_DecrRefCount(pRet);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db function NAME SCRIPT
|
|
**
|
|
** Create a new SQL function called NAME. Whenever that function is
|
|
** called, invoke SCRIPT to evaluate the function.
|
|
*/
|
|
case DB_FUNCTION: {
|
|
SqlFunc *pFunc;
|
|
Tcl_Obj *pScript;
|
|
char *zName;
|
|
if( objc!=4 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "NAME SCRIPT");
|
|
return TCL_ERROR;
|
|
}
|
|
zName = Tcl_GetStringFromObj(objv[2], 0);
|
|
pScript = objv[3];
|
|
pFunc = findSqlFunc(pDb, zName);
|
|
if( pFunc==0 ) return TCL_ERROR;
|
|
if( pFunc->pScript ){
|
|
Tcl_DecrRefCount(pFunc->pScript);
|
|
}
|
|
pFunc->pScript = pScript;
|
|
Tcl_IncrRefCount(pScript);
|
|
pFunc->useEvalObjv = safeToUseEvalObjv(interp, pScript);
|
|
rc = sqlite3_create_function(pDb->db, zName, -1, SQLITE_UTF8,
|
|
pFunc, tclSqlFunc, 0, 0);
|
|
if( rc!=SQLITE_OK ){
|
|
rc = TCL_ERROR;
|
|
Tcl_SetResult(interp, (char *)sqlite3_errmsg(pDb->db), TCL_VOLATILE);
|
|
}else{
|
|
/* Must flush any cached statements */
|
|
flushStmtCache( pDb );
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db nullvalue ?STRING?
|
|
**
|
|
** Change text used when a NULL comes back from the database. If ?STRING?
|
|
** is not present, then the current string used for NULL is returned.
|
|
** If STRING is present, then STRING is returned.
|
|
**
|
|
*/
|
|
case DB_NULLVALUE: {
|
|
if( objc!=2 && objc!=3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "NULLVALUE");
|
|
return TCL_ERROR;
|
|
}
|
|
if( objc==3 ){
|
|
int len;
|
|
char *zNull = Tcl_GetStringFromObj(objv[2], &len);
|
|
if( pDb->zNull ){
|
|
Tcl_Free(pDb->zNull);
|
|
}
|
|
if( zNull && len>0 ){
|
|
pDb->zNull = Tcl_Alloc( len + 1 );
|
|
strncpy(pDb->zNull, zNull, len);
|
|
pDb->zNull[len] = '\0';
|
|
}else{
|
|
pDb->zNull = 0;
|
|
}
|
|
}
|
|
Tcl_SetObjResult(interp, dbTextToObj(pDb->zNull));
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db last_insert_rowid
|
|
**
|
|
** Return an integer which is the ROWID for the most recent insert.
|
|
*/
|
|
case DB_LAST_INSERT_ROWID: {
|
|
Tcl_Obj *pResult;
|
|
int rowid;
|
|
if( objc!=2 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "");
|
|
return TCL_ERROR;
|
|
}
|
|
rowid = sqlite3_last_insert_rowid(pDb->db);
|
|
pResult = Tcl_GetObjResult(interp);
|
|
Tcl_SetIntObj(pResult, rowid);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** The DB_ONECOLUMN method is implemented together with DB_EVAL.
|
|
*/
|
|
|
|
/* $db progress ?N CALLBACK?
|
|
**
|
|
** Invoke the given callback every N virtual machine opcodes while executing
|
|
** queries.
|
|
*/
|
|
case DB_PROGRESS: {
|
|
if( objc==2 ){
|
|
if( pDb->zProgress ){
|
|
Tcl_AppendResult(interp, pDb->zProgress, 0);
|
|
}
|
|
}else if( objc==4 ){
|
|
char *zProgress;
|
|
int len;
|
|
int N;
|
|
if( TCL_OK!=Tcl_GetIntFromObj(interp, objv[2], &N) ){
|
|
return TCL_ERROR;
|
|
};
|
|
if( pDb->zProgress ){
|
|
Tcl_Free(pDb->zProgress);
|
|
}
|
|
zProgress = Tcl_GetStringFromObj(objv[3], &len);
|
|
if( zProgress && len>0 ){
|
|
pDb->zProgress = Tcl_Alloc( len + 1 );
|
|
strcpy(pDb->zProgress, zProgress);
|
|
}else{
|
|
pDb->zProgress = 0;
|
|
}
|
|
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
|
|
if( pDb->zProgress ){
|
|
pDb->interp = interp;
|
|
sqlite3_progress_handler(pDb->db, N, DbProgressHandler, pDb);
|
|
}else{
|
|
sqlite3_progress_handler(pDb->db, 0, 0, 0);
|
|
}
|
|
#endif
|
|
}else{
|
|
Tcl_WrongNumArgs(interp, 2, objv, "N CALLBACK");
|
|
return TCL_ERROR;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* $db profile ?CALLBACK?
|
|
**
|
|
** Make arrangements to invoke the CALLBACK routine after each SQL statement
|
|
** that has run. The text of the SQL and the amount of elapse time are
|
|
** appended to CALLBACK before the script is run.
|
|
*/
|
|
case DB_PROFILE: {
|
|
if( objc>3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
|
|
return TCL_ERROR;
|
|
}else if( objc==2 ){
|
|
if( pDb->zProfile ){
|
|
Tcl_AppendResult(interp, pDb->zProfile, 0);
|
|
}
|
|
}else{
|
|
char *zProfile;
|
|
int len;
|
|
if( pDb->zProfile ){
|
|
Tcl_Free(pDb->zProfile);
|
|
}
|
|
zProfile = Tcl_GetStringFromObj(objv[2], &len);
|
|
if( zProfile && len>0 ){
|
|
pDb->zProfile = Tcl_Alloc( len + 1 );
|
|
strcpy(pDb->zProfile, zProfile);
|
|
}else{
|
|
pDb->zProfile = 0;
|
|
}
|
|
#ifndef SQLITE_OMIT_TRACE
|
|
if( pDb->zProfile ){
|
|
pDb->interp = interp;
|
|
sqlite3_profile(pDb->db, DbProfileHandler, pDb);
|
|
}else{
|
|
sqlite3_profile(pDb->db, 0, 0);
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db rekey KEY
|
|
**
|
|
** Change the encryption key on the currently open database.
|
|
*/
|
|
case DB_REKEY: {
|
|
int nKey;
|
|
void *pKey;
|
|
if( objc!=3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "KEY");
|
|
return TCL_ERROR;
|
|
}
|
|
pKey = Tcl_GetByteArrayFromObj(objv[2], &nKey);
|
|
#ifdef SQLITE_HAS_CODEC
|
|
rc = sqlite3_rekey(pDb->db, pKey, nKey);
|
|
if( rc ){
|
|
Tcl_AppendResult(interp, sqlite3ErrStr(rc), 0);
|
|
rc = TCL_ERROR;
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db timeout MILLESECONDS
|
|
**
|
|
** Delay for the number of milliseconds specified when a file is locked.
|
|
*/
|
|
case DB_TIMEOUT: {
|
|
int ms;
|
|
if( objc!=3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "MILLISECONDS");
|
|
return TCL_ERROR;
|
|
}
|
|
if( Tcl_GetIntFromObj(interp, objv[2], &ms) ) return TCL_ERROR;
|
|
sqlite3_busy_timeout(pDb->db, ms);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db total_changes
|
|
**
|
|
** Return the number of rows that were modified, inserted, or deleted
|
|
** since the database handle was created.
|
|
*/
|
|
case DB_TOTAL_CHANGES: {
|
|
Tcl_Obj *pResult;
|
|
if( objc!=2 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "");
|
|
return TCL_ERROR;
|
|
}
|
|
pResult = Tcl_GetObjResult(interp);
|
|
Tcl_SetIntObj(pResult, sqlite3_total_changes(pDb->db));
|
|
break;
|
|
}
|
|
|
|
/* $db trace ?CALLBACK?
|
|
**
|
|
** Make arrangements to invoke the CALLBACK routine for each SQL statement
|
|
** that is executed. The text of the SQL is appended to CALLBACK before
|
|
** it is executed.
|
|
*/
|
|
case DB_TRACE: {
|
|
if( objc>3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "?CALLBACK?");
|
|
return TCL_ERROR;
|
|
}else if( objc==2 ){
|
|
if( pDb->zTrace ){
|
|
Tcl_AppendResult(interp, pDb->zTrace, 0);
|
|
}
|
|
}else{
|
|
char *zTrace;
|
|
int len;
|
|
if( pDb->zTrace ){
|
|
Tcl_Free(pDb->zTrace);
|
|
}
|
|
zTrace = Tcl_GetStringFromObj(objv[2], &len);
|
|
if( zTrace && len>0 ){
|
|
pDb->zTrace = Tcl_Alloc( len + 1 );
|
|
strcpy(pDb->zTrace, zTrace);
|
|
}else{
|
|
pDb->zTrace = 0;
|
|
}
|
|
#ifndef SQLITE_OMIT_TRACE
|
|
if( pDb->zTrace ){
|
|
pDb->interp = interp;
|
|
sqlite3_trace(pDb->db, DbTraceHandler, pDb);
|
|
}else{
|
|
sqlite3_trace(pDb->db, 0, 0);
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* $db transaction [-deferred|-immediate|-exclusive] SCRIPT
|
|
**
|
|
** Start a new transaction (if we are not already in the midst of a
|
|
** transaction) and execute the TCL script SCRIPT. After SCRIPT
|
|
** completes, either commit the transaction or roll it back if SCRIPT
|
|
** throws an exception. Or if no new transation was started, do nothing.
|
|
** pass the exception on up the stack.
|
|
**
|
|
** This command was inspired by Dave Thomas's talk on Ruby at the
|
|
** 2005 O'Reilly Open Source Convention (OSCON).
|
|
*/
|
|
case DB_TRANSACTION: {
|
|
int inTrans;
|
|
Tcl_Obj *pScript;
|
|
const char *zBegin = "BEGIN";
|
|
if( objc!=3 && objc!=4 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "[TYPE] SCRIPT");
|
|
return TCL_ERROR;
|
|
}
|
|
if( objc==3 ){
|
|
pScript = objv[2];
|
|
} else {
|
|
static const char *TTYPE_strs[] = {
|
|
"deferred", "exclusive", "immediate", 0
|
|
};
|
|
enum TTYPE_enum {
|
|
TTYPE_DEFERRED, TTYPE_EXCLUSIVE, TTYPE_IMMEDIATE
|
|
};
|
|
int ttype;
|
|
if( Tcl_GetIndexFromObj(interp, objv[2], TTYPE_strs, "transaction type",
|
|
0, &ttype) ){
|
|
return TCL_ERROR;
|
|
}
|
|
switch( (enum TTYPE_enum)ttype ){
|
|
case TTYPE_DEFERRED: /* no-op */; break;
|
|
case TTYPE_EXCLUSIVE: zBegin = "BEGIN EXCLUSIVE"; break;
|
|
case TTYPE_IMMEDIATE: zBegin = "BEGIN IMMEDIATE"; break;
|
|
}
|
|
pScript = objv[3];
|
|
}
|
|
inTrans = !sqlite3_get_autocommit(pDb->db);
|
|
if( !inTrans ){
|
|
(void)sqlite3_exec(pDb->db, zBegin, 0, 0, 0);
|
|
}
|
|
rc = Tcl_EvalObjEx(interp, pScript, 0);
|
|
if( !inTrans ){
|
|
const char *zEnd;
|
|
if( rc==TCL_ERROR ){
|
|
zEnd = "ROLLBACK";
|
|
} else {
|
|
zEnd = "COMMIT";
|
|
}
|
|
(void)sqlite3_exec(pDb->db, zEnd, 0, 0, 0);
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
** $db update_hook ?script?
|
|
** $db rollback_hook ?script?
|
|
*/
|
|
case DB_UPDATE_HOOK:
|
|
case DB_ROLLBACK_HOOK: {
|
|
|
|
/* set ppHook to point at pUpdateHook or pRollbackHook, depending on
|
|
** whether [$db update_hook] or [$db rollback_hook] was invoked.
|
|
*/
|
|
Tcl_Obj **ppHook;
|
|
if( choice==DB_UPDATE_HOOK ){
|
|
ppHook = &pDb->pUpdateHook;
|
|
}else{
|
|
ppHook = &pDb->pRollbackHook;
|
|
}
|
|
|
|
if( objc!=2 && objc!=3 ){
|
|
Tcl_WrongNumArgs(interp, 2, objv, "?SCRIPT?");
|
|
return TCL_ERROR;
|
|
}
|
|
if( *ppHook ){
|
|
Tcl_SetObjResult(interp, *ppHook);
|
|
if( objc==3 ){
|
|
Tcl_DecrRefCount(*ppHook);
|
|
*ppHook = 0;
|
|
}
|
|
}
|
|
if( objc==3 ){
|
|
assert( !(*ppHook) );
|
|
if( Tcl_GetCharLength(objv[2])>0 ){
|
|
*ppHook = objv[2];
|
|
Tcl_IncrRefCount(*ppHook);
|
|
}
|
|
}
|
|
|
|
sqlite3_update_hook(pDb->db, (pDb->pUpdateHook?DbUpdateHandler:0), pDb);
|
|
sqlite3_rollback_hook(pDb->db,(pDb->pRollbackHook?DbRollbackHandler:0),pDb);
|
|
|
|
break;
|
|
}
|
|
|
|
/* $db version
|
|
**
|
|
** Return the version string for this database.
|
|
*/
|
|
case DB_VERSION: {
|
|
Tcl_SetResult(interp, (char *)sqlite3_libversion(), TCL_STATIC);
|
|
break;
|
|
}
|
|
|
|
|
|
} /* End of the SWITCH statement */
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
** sqlite3 DBNAME FILENAME ?MODE? ?-key KEY?
|
|
**
|
|
** This is the main Tcl command. When the "sqlite" Tcl command is
|
|
** invoked, this routine runs to process that command.
|
|
**
|
|
** The first argument, DBNAME, is an arbitrary name for a new
|
|
** database connection. This command creates a new command named
|
|
** DBNAME that is used to control that connection. The database
|
|
** connection is deleted when the DBNAME command is deleted.
|
|
**
|
|
** The second argument is the name of the directory that contains
|
|
** the sqlite database that is to be accessed.
|
|
**
|
|
** For testing purposes, we also support the following:
|
|
**
|
|
** sqlite3 -encoding
|
|
**
|
|
** Return the encoding used by LIKE and GLOB operators. Choices
|
|
** are UTF-8 and iso8859.
|
|
**
|
|
** sqlite3 -version
|
|
**
|
|
** Return the version number of the SQLite library.
|
|
**
|
|
** sqlite3 -tcl-uses-utf
|
|
**
|
|
** Return "1" if compiled with a Tcl uses UTF-8. Return "0" if
|
|
** not. Used by tests to make sure the library was compiled
|
|
** correctly.
|
|
*/
|
|
static int DbMain(void *cd, Tcl_Interp *interp, int objc,Tcl_Obj *const*objv){
|
|
SqliteDb *p;
|
|
void *pKey = 0;
|
|
int nKey = 0;
|
|
const char *zArg;
|
|
char *zErrMsg;
|
|
const char *zFile;
|
|
if( objc==2 ){
|
|
zArg = Tcl_GetStringFromObj(objv[1], 0);
|
|
if( strcmp(zArg,"-version")==0 ){
|
|
Tcl_AppendResult(interp,sqlite3_version,0);
|
|
return TCL_OK;
|
|
}
|
|
if( strcmp(zArg,"-has-codec")==0 ){
|
|
#ifdef SQLITE_HAS_CODEC
|
|
Tcl_AppendResult(interp,"1",0);
|
|
#else
|
|
Tcl_AppendResult(interp,"0",0);
|
|
#endif
|
|
return TCL_OK;
|
|
}
|
|
if( strcmp(zArg,"-tcl-uses-utf")==0 ){
|
|
#ifdef TCL_UTF_MAX
|
|
Tcl_AppendResult(interp,"1",0);
|
|
#else
|
|
Tcl_AppendResult(interp,"0",0);
|
|
#endif
|
|
return TCL_OK;
|
|
}
|
|
}
|
|
if( objc==5 || objc==6 ){
|
|
zArg = Tcl_GetStringFromObj(objv[objc-2], 0);
|
|
if( strcmp(zArg,"-key")==0 ){
|
|
pKey = Tcl_GetByteArrayFromObj(objv[objc-1], &nKey);
|
|
objc -= 2;
|
|
}
|
|
}
|
|
if( objc!=3 && objc!=4 ){
|
|
Tcl_WrongNumArgs(interp, 1, objv,
|
|
#ifdef SQLITE_HAS_CODEC
|
|
"HANDLE FILENAME ?-key CODEC-KEY?"
|
|
#else
|
|
"HANDLE FILENAME ?MODE?"
|
|
#endif
|
|
);
|
|
return TCL_ERROR;
|
|
}
|
|
zErrMsg = 0;
|
|
p = (SqliteDb*)Tcl_Alloc( sizeof(*p) );
|
|
if( p==0 ){
|
|
Tcl_SetResult(interp, "malloc failed", TCL_STATIC);
|
|
return TCL_ERROR;
|
|
}
|
|
memset(p, 0, sizeof(*p));
|
|
zFile = Tcl_GetStringFromObj(objv[2], 0);
|
|
sqlite3_open(zFile, &p->db);
|
|
if( SQLITE_OK!=sqlite3_errcode(p->db) ){
|
|
zErrMsg = strdup(sqlite3_errmsg(p->db));
|
|
sqlite3_close(p->db);
|
|
p->db = 0;
|
|
}
|
|
#ifdef SQLITE_HAS_CODEC
|
|
sqlite3_key(p->db, pKey, nKey);
|
|
#endif
|
|
if( p->db==0 ){
|
|
Tcl_SetResult(interp, zErrMsg, TCL_VOLATILE);
|
|
Tcl_Free((char*)p);
|
|
free(zErrMsg);
|
|
return TCL_ERROR;
|
|
}
|
|
p->maxStmt = NUM_PREPARED_STMTS;
|
|
zArg = Tcl_GetStringFromObj(objv[1], 0);
|
|
Tcl_CreateObjCommand(interp, zArg, DbObjCmd, (char*)p, DbDeleteCmd);
|
|
|
|
/* If compiled with SQLITE_TEST turned on, then register the "md5sum"
|
|
** SQL function.
|
|
*/
|
|
#ifdef SQLITE_TEST
|
|
{
|
|
extern void Md5_Register(sqlite3*);
|
|
#ifdef SQLITE_MEMDEBUG
|
|
int mallocfail = sqlite3_iMallocFail;
|
|
sqlite3_iMallocFail = 0;
|
|
#endif
|
|
Md5_Register(p->db);
|
|
#ifdef SQLITE_MEMDEBUG
|
|
sqlite3_iMallocFail = mallocfail;
|
|
#endif
|
|
}
|
|
#endif
|
|
p->interp = interp;
|
|
return TCL_OK;
|
|
}
|
|
|
|
/*
|
|
** Provide a dummy Tcl_InitStubs if we are using this as a static
|
|
** library.
|
|
*/
|
|
#ifndef USE_TCL_STUBS
|
|
# undef Tcl_InitStubs
|
|
# define Tcl_InitStubs(a,b,c)
|
|
#endif
|
|
|
|
/*
|
|
** Make sure we have a PACKAGE_VERSION macro defined. This will be
|
|
** defined automatically by the TEA makefile. But other makefiles
|
|
** do not define it.
|
|
*/
|
|
#ifndef PACKAGE_VERSION
|
|
# define PACKAGE_VERSION SQLITE_VERSION
|
|
#endif
|
|
|
|
/*
|
|
** Initialize this module.
|
|
**
|
|
** This Tcl module contains only a single new Tcl command named "sqlite".
|
|
** (Hence there is no namespace. There is no point in using a namespace
|
|
** if the extension only supplies one new name!) The "sqlite" command is
|
|
** used to open a new SQLite database. See the DbMain() routine above
|
|
** for additional information.
|
|
*/
|
|
extern int Sqlite3_Init(Tcl_Interp *interp){
|
|
Tcl_InitStubs(interp, "8.4", 0);
|
|
Tcl_CreateObjCommand(interp, "sqlite3", (Tcl_ObjCmdProc*)DbMain, 0, 0);
|
|
Tcl_PkgProvide(interp, "sqlite3", PACKAGE_VERSION);
|
|
Tcl_CreateObjCommand(interp, "sqlite", (Tcl_ObjCmdProc*)DbMain, 0, 0);
|
|
Tcl_PkgProvide(interp, "sqlite", PACKAGE_VERSION);
|
|
return TCL_OK;
|
|
}
|
|
extern int Tclsqlite3_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
|
|
extern int Sqlite3_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
|
|
extern int Tclsqlite3_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
|
|
|
|
#ifndef SQLITE_3_SUFFIX_ONLY
|
|
extern int Sqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
|
|
extern int Tclsqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
|
|
extern int Sqlite_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
|
|
extern int Tclsqlite_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
|
|
#endif
|
|
|
|
#ifdef TCLSH
|
|
/*****************************************************************************
|
|
** The code that follows is used to build standalone TCL interpreters
|
|
*/
|
|
|
|
/*
|
|
** If the macro TCLSH is one, then put in code this for the
|
|
** "main" routine that will initialize Tcl and take input from
|
|
** standard input.
|
|
*/
|
|
#if TCLSH==1
|
|
static char zMainloop[] =
|
|
"set line {}\n"
|
|
"while {![eof stdin]} {\n"
|
|
"if {$line!=\"\"} {\n"
|
|
"puts -nonewline \"> \"\n"
|
|
"} else {\n"
|
|
"puts -nonewline \"% \"\n"
|
|
"}\n"
|
|
"flush stdout\n"
|
|
"append line [gets stdin]\n"
|
|
"if {[info complete $line]} {\n"
|
|
"if {[catch {uplevel #0 $line} result]} {\n"
|
|
"puts stderr \"Error: $result\"\n"
|
|
"} elseif {$result!=\"\"} {\n"
|
|
"puts $result\n"
|
|
"}\n"
|
|
"set line {}\n"
|
|
"} else {\n"
|
|
"append line \\n\n"
|
|
"}\n"
|
|
"}\n"
|
|
;
|
|
#endif
|
|
|
|
/*
|
|
** If the macro TCLSH is two, then get the main loop code out of
|
|
** the separate file "spaceanal_tcl.h".
|
|
*/
|
|
#if TCLSH==2
|
|
static char zMainloop[] =
|
|
#include "spaceanal_tcl.h"
|
|
;
|
|
#endif
|
|
|
|
#define TCLSH_MAIN main /* Needed to fake out mktclapp */
|
|
int TCLSH_MAIN(int argc, char **argv){
|
|
Tcl_Interp *interp;
|
|
Tcl_FindExecutable(argv[0]);
|
|
interp = Tcl_CreateInterp();
|
|
Sqlite3_Init(interp);
|
|
#ifdef SQLITE_TEST
|
|
{
|
|
extern int Sqlitetest1_Init(Tcl_Interp*);
|
|
extern int Sqlitetest2_Init(Tcl_Interp*);
|
|
extern int Sqlitetest3_Init(Tcl_Interp*);
|
|
extern int Sqlitetest4_Init(Tcl_Interp*);
|
|
extern int Sqlitetest5_Init(Tcl_Interp*);
|
|
extern int Sqlitetest6_Init(Tcl_Interp*);
|
|
extern int Sqlitetest7_Init(Tcl_Interp*);
|
|
extern int Md5_Init(Tcl_Interp*);
|
|
extern int Sqlitetestsse_Init(Tcl_Interp*);
|
|
extern int Sqlitetestasync_Init(Tcl_Interp*);
|
|
|
|
Sqlitetest1_Init(interp);
|
|
Sqlitetest2_Init(interp);
|
|
Sqlitetest3_Init(interp);
|
|
Sqlitetest4_Init(interp);
|
|
Sqlitetest5_Init(interp);
|
|
Sqlitetest6_Init(interp);
|
|
Sqlitetest7_Init(interp);
|
|
Sqlitetestasync_Init(interp);
|
|
Md5_Init(interp);
|
|
#ifdef SQLITE_SSE
|
|
Sqlitetestsse_Init(interp);
|
|
#endif
|
|
}
|
|
#endif
|
|
if( argc>=2 || TCLSH==2 ){
|
|
int i;
|
|
Tcl_SetVar(interp,"argv0",argv[1],TCL_GLOBAL_ONLY);
|
|
Tcl_SetVar(interp,"argv", "", TCL_GLOBAL_ONLY);
|
|
for(i=3-TCLSH; i<argc; i++){
|
|
Tcl_SetVar(interp, "argv", argv[i],
|
|
TCL_GLOBAL_ONLY | TCL_LIST_ELEMENT | TCL_APPEND_VALUE);
|
|
}
|
|
if( TCLSH==1 && Tcl_EvalFile(interp, argv[1])!=TCL_OK ){
|
|
const char *zInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
|
|
if( zInfo==0 ) zInfo = interp->result;
|
|
fprintf(stderr,"%s: %s\n", *argv, zInfo);
|
|
return 1;
|
|
}
|
|
}
|
|
if( argc<=1 || TCLSH==2 ){
|
|
Tcl_GlobalEval(interp, zMainloop);
|
|
}
|
|
return 0;
|
|
}
|
|
#endif /* TCLSH */
|
|
|
|
#endif /* !defined(NO_TCL) */
|