* Processes raw data from given resource. This is mostly useful for TCP
* package handling and is implemented in the TcpListener class
*
- * @param $resource A valid resource identifier
+ * @param $resource A valid socket resource array
* @return void
*/
- public function processRawDataFromResource ($resource) {
+ public function processRawDataFromResource (array $socketArray) {
// Check the resource
- if (!is_resource($resource)) {
+ if ((!isset($socketArray[BasePool::SOCKET_ARRAY_RESOURCE])) || (!is_resource($socketArray[BasePool::SOCKET_ARRAY_RESOURCE]))) {
// Throw an exception
throw new InvalidResourceException($this, self::EXCEPTION_INVALID_RESOURCE);
} // END - if
// Reset error code to unhandled
$this->setErrorCode(self::SOCKET_ERROR_UNHANDLED);
- // Init variables
- $decodedData = false;
-
// Debug message
- //* NOISY-DEBUG: */ $this->debugOutput('HANDLER: Handling TCP package from peer ' . $resource);
+ //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('TCP-HANDLER[' . __LINE__ . ']: Handling TCP package from resource=' . $socketArray[BasePool::SOCKET_ARRAY_RESOURCE] . ',type=' . $socketArray[BasePool::SOCKET_ARRAY_CONN_TYPE] . ',last error=' . socket_strerror(socket_last_error($socketArray[BasePool::SOCKET_ARRAY_RESOURCE])));
/*
* Read the raw data from socket. If you change PHP_BINARY_READ to
- * PHP_NORMAL_READ, this line will endless block. We only have
- * simultanous threads and no real threads.
+ * PHP_NORMAL_READ, this line will endless block. This script does only
+ * provide simultanous threads, not real.
*/
- $rawData = socket_read($resource, $this->getConfigInstance()->getConfigEntry('tcp_buffer_length'), PHP_BINARY_READ);
+ $rawData = socket_read($socketArray[BasePool::SOCKET_ARRAY_RESOURCE], $this->getConfigInstance()->getConfigEntry('tcp_buffer_length'), PHP_BINARY_READ);
// Debug output of read data length
- //* NOISY-DEBUG: */ $this->debugOutput('TCP-HANDLER: rawData[]=' . strlen($rawData));
+ //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('TCP-HANDLER[' . __LINE__ . ']: rawData[' . gettype($rawData) . ']=' . strlen($rawData) . ',MD5=' . md5($rawData) . ',resource=' . $socketArray[BasePool::SOCKET_ARRAY_RESOURCE] . ',error=' . socket_strerror(socket_last_error($socketArray[BasePool::SOCKET_ARRAY_RESOURCE])));
+ //* NOISY-DEBUG: */ if ($rawData !== false) self::createDebugInstance(__CLASS__)->debugOutput('TCP-HANDLER[' . __LINE__ . ']: rawData=' . $rawData);
// Is it valid?
- if (($rawData === false) || (socket_last_error($resource) > 0)) {
+ if (socket_last_error($socketArray[BasePool::SOCKET_ARRAY_RESOURCE]) == 11) {
+ // Debug message
+ //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('TCP-HANDLER[' . __LINE__ . ']: Ignoring error 11 (Resource temporary unavailable) from socket resource=' . $socketArray[BasePool::SOCKET_ARRAY_RESOURCE]);
+
+ /*
+ * Error code 11 (Resource temporary unavailable) can be safely
+ * ignored on non-blocking sockets. The socket is currently not
+ * sending any data.
+ */
+ socket_clear_error($socketArray[BasePool::SOCKET_ARRAY_RESOURCE]);
+
+ // Skip any further processing
+ return;
+ } elseif (($rawData === false) || (socket_last_error($socketArray[BasePool::SOCKET_ARRAY_RESOURCE]) > 0)) {
// Network error or connection lost
- $this->setErrorCode(socket_last_error($resource));
+ $this->setErrorCode(socket_last_error($socketArray[BasePool::SOCKET_ARRAY_RESOURCE]));
} elseif (empty($rawData)) {
- // The peer did send nothing to us
- $this->setErrorCode(self::SOCKET_ERROR_EMPTY_DATA);
+ // The peer did send nothing to us which is now being ignored
+ return;
} else {
/*
- * Low-level checks of the raw data went all fine, we can now
- * decode the raw data. This may still fail because of invalid
- * encoded data.
+ * All is fine at this point. So it is okay to add the raw data to
+ * the stacker. Here it doesn't matter if the raw data is a
+ * well-formed BASE64-encoded message with start and markers. This
+ * will be checked later on.
*/
- $decodedData = $this->getInputStreamInstance()->streamData($rawData);
+ $this->addRawDataToStacker($rawData);
}
-
- // Add the (maybe above decoded) data to the stacker
- $this->addDecodedDataToStacker($decodedData);
}
}