The echo module test is now running. Added the tclvar module test but have

not yet done anything with it. (CVS 3234)

FossilOrigin-Name: 29199eeea4c46168ccaa7535d4941bd740479dee

src/test_tclvar.c

@@ -0,0 +1,193 @@
+/*
+** 2006 June 13
+**
+** 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.
+**
+*************************************************************************
+** Code for testing the virtual table interfaces.  This code
+** is not included in the SQLite library.  It is used for automated
+** testing of the SQLite library.
+**
+** The emphasis of this file is a virtual table that provides
+** access to TCL variables.
+**
+** $Id: test_tclvar.c,v 1.1 2006/06/13 23:51:35 drh Exp $
+*/
+#include "sqliteInt.h"
+#include "tcl.h"
+#include "os.h"
+#include <stdlib.h>
+#include <string.h>
+
+typedef struct tclvar_vtab tclvar_vtab;
+typedef struct tclvar_cursor tclvar_cursor;
+
+/* 
+** A tclvar virtual-table object 
+*/
+struct tclvar_vtab {
+  sqlite3_vtab base;
+  Tcl_Interp *interp;
+};
+
+/* A tclvar cursor object */
+struct tclvar_cursor {
+  sqlite3_vtab_cursor base;
+  Tcl_Obj *pList1, *pList2;
+  int i, j;
+};
+
+/* Methods for the tclvar module */
+static int tclvarConnect(
+  sqlite3 *db,
+  const sqlite3_module *pModule,
+  int argc, char **argv,
+  sqlite3_vtab **ppVtab
+){
+  tclvar_vtab *pVtab;
+  static const char zSchema[] = 
+     "CREATE TABLE whatever(name TEXT, arrayname TEXT, value TEXT)";
+  pVtab = sqliteMalloc( sizeof(*pVtab) );
+  if( pVtab==0 ) return SQLITE_NOMEM;
+  *ppVtab = &pVtab->base;
+  pVtab->base.pModule = pModule;
+  pVtab->interp = pModule->pAux;
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  sqlite3_declare_vtab(db, zSchema);
+#endif
+  return SQLITE_OK;
+}
+/* Note that for this virtual table, the xCreate and xConnect
+** methods are identical. */
+static int tclvarDisconnect(sqlite3_vtab *pVtab){
+  free(pVtab);
+}
+/* The xDisconnect and xDestroy methods are also the same */
+
+static int tclvarOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  tclvar_cursor *pCur;
+  pCur = sqliteMalloc(sizeof(tclvar_cursor));
+  *ppCursor = &pCur->base;
+  return SQLITE_OK;
+}
+
+static int tclvarClose(sqlite3_vtab_cursor *cur){
+  tclvar_cursor *pCur = (tclvar_cursor *)cur;
+  if( pCur->pList1 ){
+    Tcl_DecrRefCount(pCur->pList1);
+  }
+  if( pCur->pList2 ){
+    Tcl_DecrRefCount(pCur->pList2);
+  }
+  sqliteFree(pCur);
+  return SQLITE_OK;
+}
+
+static int tclvarNext(sqlite3_vtab_cursor *cur){
+  tclvar_cursor *pCur = (tclvar_cursor *)cur;
+  return 0;
+}
+
+static int tclvarColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
+  tclvar_cursor *pCur = (tclvar_cursor*)cur;
+  return SQLITE_OK;
+}
+
+static int tclvarRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  tclvar_cursor *pCur = (tclvar_cursor*)cur;
+  return SQLITE_OK;
+}
+
+static int tclvarFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  tclvar_cursor *pCur = (tclvar_cursor *)pVtabCursor;
+  tclvar_vtab *pVtab = (tclvar_vtab *)pCur->base.pVtab;
+  return 0;
+}
+
+/*
+*/
+static int tclvarBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
+  tclvar_vtab *pVtab = (tclvar_vtab *)tab;
+  return SQLITE_OK;
+}
+
+/*
+** A virtual table module that merely echos method calls into TCL
+** variables.
+*/
+static sqlite3_module tclvarModule = {
+  0,                         /* iVersion */
+  "tclvar",                  /* zName */
+  0,                         /* pAux */
+  tclvarConnect,
+  tclvarConnect,
+  tclvarBestIndex,
+  tclvarDisconnect, 
+  tclvarDisconnect,
+  tclvarOpen,                  /* xOpen - open a cursor */
+  tclvarClose,                 /* xClose - close a cursor */
+  tclvarFilter,                /* xFilter - configure scan constraints */
+  tclvarNext,                  /* xNext - advance a cursor */
+  tclvarColumn,                /* xColumn - read data */
+  tclvarRowid                  /* xRowid - read data */
+};
+
+/*
+** Decode a pointer to an sqlite3 object.
+*/
+static int getDbPointer(Tcl_Interp *interp, const char *zA, sqlite3 **ppDb){
+  *ppDb = (sqlite3*)sqlite3TextToPtr(zA);
+  return TCL_OK;
+}
+
+
+/*
+** Register the echo virtual table module.
+*/
+static int register_tclvar_module(
+  ClientData clientData, /* Pointer to sqlite3_enable_XXX function */
+  Tcl_Interp *interp,    /* The TCL interpreter that invoked this command */
+  int objc,              /* Number of arguments */
+  Tcl_Obj *CONST objv[]  /* Command arguments */
+){
+  sqlite3 *db;
+  if( objc!=2 ){
+    Tcl_WrongNumArgs(interp, 1, objv, "DB");
+    return TCL_ERROR;
+  }
+  if( getDbPointer(interp, Tcl_GetString(objv[1]), &db) ) return TCL_ERROR;
+  tclvarModule.pAux = interp;
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  sqlite3_create_module(db, "tclvar", &tclvarModule);
+#endif
+  return TCL_OK;
+}
+
+
+/*
+** Register commands with the TCL interpreter.
+*/
+int Sqlitetesttclvar_Init(Tcl_Interp *interp){
+  static struct {
+     char *zName;
+     Tcl_ObjCmdProc *xProc;
+     void *clientData;
+  } aObjCmd[] = {
+     { "register_tclvar_module",   register_tclvar_module, 0 },
+  };
+  int i;
+  for(i=0; i<sizeof(aObjCmd)/sizeof(aObjCmd[0]); i++){
+    Tcl_CreateObjCommand(interp, aObjCmd[i].zName, 
+        aObjCmd[i].xProc, aObjCmd[i].clientData, 0);
+  }
+  return TCL_OK;
+}