SQLite Android Bindings

// Called after each SQLite VM instruction when cancelation is enabled.
static int sqliteProgressHandlerCallback(void* data) {
    SQLiteConnection* connection = static_cast<SQLiteConnection*>(data);
    return connection->canceled;
}

/*
** This function is a collation sequence callback equivalent to the built-in
** BINARY sequence. 
**
** Stock Android uses a modified version of sqlite3.c that calls out to a module
** named "sqlite3_android" to add extra built-in collations and functions to
** all database handles. Specifically, collation sequence "LOCALIZED". For now,
** this module does not include sqlite3_android (since it is difficult to build
** with the NDK only). Instead, this function is registered as "LOCALIZED" for all
** new database handles. 
*/
static int coll_localized(
  void *not_used,
  int nKey1, const void *pKey1,
  int nKey2, const void *pKey2
){
  int rc, n;
  n = nKey1<nKey2 ? nKey1 : nKey2;
  rc = memcmp(pKey1, pKey2, n);
  if( rc==0 ){
    rc = nKey1 - nKey2;
  }
  return rc;
}

static jint nativeOpen(JNIEnv* env, jclass clazz, jstring pathStr, jint openFlags,
        jstring labelStr, jboolean enableTrace, jboolean enableProfile) {
    int sqliteFlags;
    if (openFlags & SQLiteConnection::CREATE_IF_NECESSARY) {
        sqliteFlags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
    } else if (openFlags & SQLiteConnection::OPEN_READONLY) {

    env->ReleaseStringUTFChars(labelStr, labelChars);

    sqlite3* db;
    int err = sqlite3_open_v2(path.c_str(), &db, sqliteFlags, NULL);
    if (err != SQLITE_OK) {
        throw_sqlite3_exception_errcode(env, err, "Could not open database");
        return 0;
    }
    err = sqlite3_create_collation(db, "localized", SQLITE_UTF8, 0, coll_localized);
    if (err != SQLITE_OK) {
        throw_sqlite3_exception_errcode(env, err, "Could not register collation");
        sqlite3_close(db);
        return 0;
    }

    // Check that the database is really read/write when that is what we asked for.
    if ((sqliteFlags & SQLITE_OPEN_READWRITE) && sqlite3_db_readonly(db, NULL)) {
        throw_sqlite3_exception(env, db, "Could not open the database in read/write mode.");
        sqlite3_close(db);
        return 0;