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/******************************************************************************
*
* Project: OpenGIS Simple Features Reference Implementation
* Purpose: Test dynamic loading of SQLite Virtual Table module using OGR
*layers Author: Even Rouault, even dot rouault at spatialys.com
*
******************************************************************************
* Copyright (c) 2012, Even Rouault <even dot rouault at spatialys.com>
*
* SPDX-License-Identifier: MIT
****************************************************************************/
#ifdef HAVE_SPATIALITE
#ifdef SPATIALITE_AMALGAMATION
/*
/ using an AMALGAMATED version of SpatiaLite
/ a private internal copy of SQLite is included:
/ so we are required including the SpatiaLite's
/ own header
/
/ IMPORTANT NOTICE: using AMALAGATION is only
/ useful on Windows (to skip DLL hell related oddities)
*/
#include <spatialite/sqlite3.h>
#else
/*
/ You MUST NOT use AMALGAMATION on Linux or any
/ other "sane" operating system !!!!
*/
#include "sqlite3.h"
#endif
#else
#include "sqlite3.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#undef NDEBUG
#include <assert.h>
#ifndef _MSC_VER
#include <unistd.h>
#endif
#if _MSC_VER
#define snprintf _snprintf
#endif
int main(int argc, char *argv[])
{
sqlite3 *db = NULL;
char *pszErrMsg = NULL;
char **papszResult = NULL;
int nRowCount = 0, nColCount = 0;
int rc;
char szBuffer[256];
if (argc < 2 || argc > 4)
{
fprintf(stderr, "Usage: test_load_virtual_ogr libgdal.so|gdalXX.dll "
"[datasource_name] [layer_name]\n");
exit(1);
}
sqlite3_open("tmp.db", &db);
if (db == NULL)
{
fprintf(stderr, "cannot open DB.\n");
exit(1);
}
rc = sqlite3_enable_load_extension(db, 1);
if (rc != SQLITE_OK)
{
fprintf(stderr, "sqlite3_enable_load_extension() failed\n");
sqlite3_close(db);
unlink("tmp.db");
exit(1);
}
rc = sqlite3_load_extension(db, argv[1], NULL, &pszErrMsg);
if (rc != SQLITE_OK)
{
fprintf(stderr, "sqlite3_load_extension(%s) failed: %s\n", argv[1],
pszErrMsg);
sqlite3_free(pszErrMsg);
sqlite3_close(db);
unlink("tmp.db");
exit(1);
}
rc = sqlite3_get_table(db, "SELECT ogr_version()", &papszResult, &nRowCount,
&nColCount, &pszErrMsg);
if (rc == SQLITE_OK && nRowCount == 1 && nColCount == 1)
{
printf("SELECT ogr_version() returned : %s\n", papszResult[1]);
}
else
{
fprintf(stderr, "SELECT ogr_version() failed: %s\n", pszErrMsg);
sqlite3_free(pszErrMsg);
sqlite3_close(db);
unlink("tmp.db");
exit(1);
}
sqlite3_free_table(papszResult);
if (argc >= 3)
{
if (argc == 3)
{
snprintf(szBuffer, sizeof(szBuffer),
"CREATE VIRTUAL TABLE foo USING VirtualOGR('%s')",
argv[2]);
}
else
{
snprintf(
szBuffer, sizeof(szBuffer),
"CREATE VIRTUAL TABLE foo USING VirtualOGR('%s', 0, '%s', 1)",
argv[2], argv[3]);
}
rc = sqlite3_exec(db, szBuffer, NULL, NULL, &pszErrMsg);
if (rc != SQLITE_OK)
{
fprintf(stderr, "%s failed: %s\n", szBuffer, pszErrMsg);
sqlite3_free(pszErrMsg);
sqlite3_close(db);
unlink("tmp.db");
exit(1);
}
else
{
if (argc == 3)
printf("Managed to open '%s'\n", argv[2]);
else
printf("Managed to open '%s':'%s'\n", argv[2], argv[3]);
assert(SQLITE_OK ==
sqlite3_exec(db,
"CREATE TABLE spy_table (spy_content VARCHAR)",
NULL, NULL, NULL));
assert(SQLITE_OK ==
sqlite3_exec(db, "CREATE TABLE regular_table (bar VARCHAR)",
NULL, NULL, NULL));
assert(
SQLITE_OK ==
sqlite3_exec(
db,
"CREATE TRIGGER spy_trigger INSERT ON regular_table BEGIN "
"INSERT OR REPLACE INTO spy_table (spy_content) "
"SELECT OGR_STYLE FROM foo; END;",
NULL, NULL, NULL));
sqlite3_close(db);
db = NULL;
sqlite3_open("tmp.db", &db);
if (db == NULL)
{
fprintf(stderr, "cannot reopen DB.\n");
unlink("tmp.db");
exit(1);
}
assert(SQLITE_OK == sqlite3_enable_load_extension(db, 1));
assert(SQLITE_OK ==
sqlite3_load_extension(db, argv[1], NULL, NULL));
pszErrMsg = NULL;
assert(SQLITE_OK !=
sqlite3_exec(
db, "INSERT INTO regular_table (bar) VALUES ('bar')",
NULL, NULL, &pszErrMsg));
fprintf(stderr, "Expected error. We got : %s\n", pszErrMsg);
sqlite3_free(pszErrMsg);
}
}
sqlite3_close(db);
unlink("tmp.db");
return 0;
}
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