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/*
** 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>
#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 */
char *zScript; /* The script to be run */
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 */
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 *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 */
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 */
};
/*
** 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_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->zAuth ){
Tcl_Free(pDb->zAuth);
}
if( pDb->zNull ){
Tcl_Free(pDb->zNull);
}
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];
char *zCmd;
Tcl_DString cmd;
Tcl_DStringInit(&cmd);
Tcl_DStringAppend(&cmd, pDb->zBusy, -1);
sprintf(zVal, "%d", nTries);
Tcl_DStringAppendElement(&cmd, zVal);
zCmd = Tcl_DStringValue(&cmd);
rc = Tcl_Eval(pDb->interp, zCmd);
Tcl_DStringFree(&cmd);
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;
}
/*
** 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);
}
/*
** 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 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, 0);
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_DString cmd;
int i;
int rc;
Tcl_DStringInit(&cmd);
Tcl_DStringAppend(&cmd, p->zScript, -1);
for(i=0; i<argc; i++){
if( SQLITE_NULL==sqlite3_value_type(argv[i]) ){
Tcl_DStringAppendElement(&cmd, "");
}else{
Tcl_DStringAppendElement(&cmd, sqlite3_value_text(argv[i]));
}
}
rc = Tcl_EvalEx(p->interp, Tcl_DStringValue(&cmd), Tcl_DStringLength(&cmd),
TCL_EVAL_DIRECT);
Tcl_DStringFree(&cmd);
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 ){
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{
data = Tcl_GetStringFromObj(pVar, &n);
sqlite3_result_text(context, 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;
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",
"function", "last_insert_rowid", "nullvalue",
"onecolumn", "progress", "rekey",
"timeout", "total_changes", "trace",
"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_FUNCTION, DB_LAST_INSERT_ROWID,DB_NULLVALUE,
DB_ONECOLUMN, DB_PROGRESS, DB_REKEY,
DB_TIMEOUT, DB_TOTAL_CHANGES, DB_TRACE,
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 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 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 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 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: {
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_ONECOLUMN ){
if( objc!=3 ){
Tcl_WrongNumArgs(interp, 2, objv, "SQL");
return TCL_ERROR;
}
pRet = 0;
}else{
if( objc<3 || objc>5 ){
Tcl_WrongNumArgs(interp, 2, objv, "SQL ?ARRAY-NAME? ?SCRIPT?");
return TCL_ERROR;
}
pRet = Tcl_NewObj();
Tcl_IncrRefCount(pRet);
}
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 ){
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{
data = Tcl_GetStringFromObj(pVar, &n);
sqlite3_bind_text(pStmt, i, 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(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 ){
if( pRet==0 ){
pRet = pVal;
Tcl_IncrRefCount(pRet);
}
rc = TCL_BREAK;
}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;
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);
pFunc = (SqlFunc*)Tcl_Alloc( sizeof(*pFunc) + nScript + 1 );
if( pFunc==0 ) return TCL_ERROR;
pFunc->interp = interp;
pFunc->pNext = pDb->pFunc;
pFunc->zScript = (char*)&pFunc[1];
pDb->pFunc = pFunc;
strcpy(pFunc->zScript, zScript);
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 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 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 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 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;
}
if( pDb->zTrace ){
pDb->interp = interp;
sqlite3_trace(pDb->db, DbTraceHandler, pDb);
}else{
sqlite3_trace(pDb->db, 0, 0);
}
}
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);
return TCL_ERROR;
}
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);
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 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;
char zBuf[80];
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);
/* The return value is the value of the sqlite* pointer
*/
sprintf(zBuf, "%p", p->db);
if( strncmp(zBuf,"0x",2) ){
sprintf(zBuf, "0x%p", p->db);
}
Tcl_AppendResult(interp, zBuf, 0);
/* 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
/*
** 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.
*/
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", "3.0");
Tcl_CreateObjCommand(interp, "sqlite", (Tcl_ObjCmdProc*)DbMain, 0, 0);
Tcl_PkgProvide(interp, "sqlite", "3.0");
return TCL_OK;
}
int Tclsqlite3_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
int Sqlite3_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
int Tclsqlite3_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
#ifndef SQLITE_3_SUFFIX_ONLY
int Sqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
int Tclsqlite_Init(Tcl_Interp *interp){ return Sqlite3_Init(interp); }
int Sqlite_SafeInit(Tcl_Interp *interp){ return TCL_OK; }
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 Md5_Init(Tcl_Interp*);
extern int Sqlitetestsse_Init(Tcl_Interp*);
Sqlitetest1_Init(interp);
Sqlitetest2_Init(interp);
Sqlitetest3_Init(interp);
Sqlitetest4_Init(interp);
Sqlitetest5_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) */