void SmushChannel::processBuffer() { assert(_tbuffer != 0); assert(_tbufferSize != 0); assert(_sbuffer == 0); assert(_sbufferSize == 0); if (_inData) { if (_dataSize < _tbufferSize) { int32 offset = _dataSize; while (handleSubTags(offset)) ; _sbufferSize = _dataSize; _sbuffer = _tbuffer; if (offset < _tbufferSize) { int new_size = _tbufferSize - offset; _tbuffer = (byte *)malloc(new_size); // FIXME: _tbuffer might be 0 if new_size is 0. // NB: Also check other "if (_tbuffer)" locations in smush if (!_tbuffer) error("smush channel failed to allocate memory"); memcpy(_tbuffer, _sbuffer + offset, new_size); _tbufferSize = new_size; } else { _tbuffer = 0; _tbufferSize = 0; } if (_sbufferSize == 0) { free(_sbuffer); _sbuffer = 0; } } else { _sbufferSize = _tbufferSize; _sbuffer = _tbuffer; _tbufferSize = 0; _tbuffer = 0; } } else { int32 offset = 0; while (handleSubTags(offset)) ; if (_inData) { _sbufferSize = _tbufferSize - offset; assert(_sbufferSize); _sbuffer = (byte *)malloc(_sbufferSize); if (!_sbuffer) error("smush channel failed to allocate memory"); memcpy(_sbuffer, _tbuffer + offset, _sbufferSize); free(_tbuffer); _tbuffer = 0; _tbufferSize = 0; } else { if (offset) { byte *old = _tbuffer; int32 new_size = _tbufferSize - offset; _tbuffer = (byte *)malloc(new_size); // FIXME: _tbuffer might be 0 if new_size is 0. // NB: Also check other "if (_tbuffer)" locations in smush if (!_tbuffer) error("smush channel failed to allocate memory"); memcpy(_tbuffer, old + offset, new_size); _tbufferSize = new_size; free(old); } } } }
void SmushChannel::processBuffer() { assert(_tbuffer != 0); assert(_tbufferSize != 0); assert(_sbuffer == 0); assert(_sbufferSize == 0); if (_inData) { if (_dataSize < _tbufferSize) { int32 offset = _dataSize; while (handleSubTags(offset)) ; _sbufferSize = _dataSize; _sbuffer = _tbuffer; if (offset < _tbufferSize) { int new_size = _tbufferSize - offset; _tbuffer = new byte[new_size]; if (!_tbuffer) error("smush channel failed to allocate memory"); memcpy(_tbuffer, _sbuffer + offset, new_size); _tbufferSize = new_size; } else { _tbuffer = 0; _tbufferSize = 0; } if (_sbufferSize == 0) { delete[] _sbuffer; _sbuffer = 0; } } else { _sbufferSize = _tbufferSize; _sbuffer = _tbuffer; _tbufferSize = 0; _tbuffer = 0; } } else { int32 offset = 0; while (handleSubTags(offset)) ; if (_inData) { _sbufferSize = _tbufferSize - offset; assert(_sbufferSize); _sbuffer = new byte[_sbufferSize]; if (!_sbuffer) error("smush channel failed to allocate memory"); memcpy(_sbuffer, _tbuffer + offset, _sbufferSize); delete[] _tbuffer; _tbuffer = 0; _tbufferSize = 0; } else { if (offset) { byte *old = _tbuffer; int32 new_size = _tbufferSize - offset; _tbuffer = new byte[new_size]; if (!_tbuffer) error("smush channel failed to allocate memory"); memcpy(_tbuffer, old + offset, new_size); _tbufferSize = new_size; delete[] old; } } } }