NS_IMETHODIMP AsyncExecuteStatements::Run() { MOZ_ASSERT(!mConnection->isClosed()); // Do not run if we have been canceled. { MutexAutoLock lockedScope(mMutex); if (mCancelRequested) mState = CANCELED; } if (mState == CANCELED) return notifyComplete(); if (statementsNeedTransaction() && mConnection->getAutocommit()) { if (NS_SUCCEEDED(mConnection->beginTransactionInternal(mNativeConnection, mozIStorageConnection::TRANSACTION_IMMEDIATE))) { mHasTransaction = true; } #ifdef DEBUG else { NS_WARNING("Unable to create a transaction for async execution."); } #endif } // Execute each statement, giving the callback results if it returns any. for (uint32_t i = 0; i < mStatements.Length(); i++) { bool finished = (i == (mStatements.Length() - 1)); sqlite3_stmt *stmt; { // lock the sqlite mutex so sqlite3_errmsg cannot change SQLiteMutexAutoLock lockedScope(mDBMutex); int rc = mStatements[i].getSqliteStatement(&stmt); if (rc != SQLITE_OK) { // Set our error state. mState = ERROR; // Build the error object; can't call notifyError with the lock held nsCOMPtr<mozIStorageError> errorObj( new Error(rc, ::sqlite3_errmsg(mNativeConnection)) ); { // We cannot hold the DB mutex and call notifyError. SQLiteMutexAutoUnlock unlockedScope(mDBMutex); (void)notifyError(errorObj); } break; } } // If we have parameters to bind, bind them, execute, and process. if (mStatements[i].hasParametersToBeBound()) { if (!bindExecuteAndProcessStatement(mStatements[i], finished)) break; } // Otherwise, just execute and process the statement. else if (!executeAndProcessStatement(stmt, finished)) { break; } } // If we still have results that we haven't notified about, take care of // them now. if (mResultSet) (void)notifyResults(); // Notify about completion return notifyComplete(); }
NS_IMETHODIMP AsyncExecuteStatements::Run() { // Do not run if we have been canceled. { MutexAutoLock lockedScope(mMutex); if (mCancelRequested) mState = CANCELED; } if (mState == CANCELED) return notifyComplete(); if (statementsNeedTransaction()) { mTransactionManager = new mozStorageTransaction(mConnection, false, mozIStorageConnection::TRANSACTION_IMMEDIATE); } // Execute each statement, giving the callback results if it returns any. for (PRUint32 i = 0; i < mStatements.Length(); i++) { bool finished = (i == (mStatements.Length() - 1)); sqlite3_stmt *stmt; { // lock the sqlite mutex so sqlite3_errmsg cannot change SQLiteMutexAutoLock lockedScope(mDBMutex); int rc = mStatements[i].getSqliteStatement(&stmt); if (rc != SQLITE_OK) { // Set our error state. mState = ERROR; // Build the error object; can't call notifyError with the lock held sqlite3 *db = mConnection->GetNativeConnection(); nsCOMPtr<mozIStorageError> errorObj( new Error(rc, ::sqlite3_errmsg(db)) ); { // We cannot hold the DB mutex and call notifyError. SQLiteMutexAutoUnlock unlockedScope(mDBMutex); (void)notifyError(errorObj); } break; } } // If we have parameters to bind, bind them, execute, and process. if (mStatements[i].hasParametersToBeBound()) { if (!bindExecuteAndProcessStatement(mStatements[i], finished)) break; } // Otherwise, just execute and process the statement. else if (!executeAndProcessStatement(stmt, finished)) { break; } } // If we still have results that we haven't notified about, take care of // them now. if (mResultSet) (void)notifyResults(); // Notify about completion return notifyComplete(); }