forked from mirrors/gecko-dev
217bbab384
Update testing/mochitest/pywebsocket with the latest version available: pywebsocket3 is python 3 compatible. This keeps the basic structure of the old pywebsocket, but changes the directory name to pywebsocket3 to reflect the project renaming. Differential Revision: https://phabricator.services.mozilla.com/D84455
98 lines
3.2 KiB
OpenEdge ABL
98 lines
3.2 KiB
OpenEdge ABL
// Copyright 2013, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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%module fast_masking
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%include "cstring.i"
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%{
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#include <cstring>
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#ifdef __SSE2__
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#include <emmintrin.h>
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#endif
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%}
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%apply (char *STRING, int LENGTH) {
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(const char* payload, int payload_length),
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(const char* masking_key, int masking_key_length) };
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%cstring_output_allocate_size(
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char** result, int* result_length, delete [] *$1);
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%inline %{
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void mask(
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const char* payload, int payload_length,
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const char* masking_key, int masking_key_length,
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int masking_key_index,
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char** result, int* result_length) {
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*result = new char[payload_length];
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*result_length = payload_length;
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memcpy(*result, payload, payload_length);
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char* cursor = *result;
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char* cursor_end = *result + *result_length;
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#ifdef __SSE2__
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while ((cursor < cursor_end) &&
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(reinterpret_cast<size_t>(cursor) & 0xf)) {
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*cursor ^= masking_key[masking_key_index];
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++cursor;
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masking_key_index = (masking_key_index + 1) % masking_key_length;
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}
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if (cursor == cursor_end) {
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return;
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}
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const int kBlockSize = 16;
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__m128i masking_key_block;
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for (int i = 0; i < kBlockSize; ++i) {
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*(reinterpret_cast<char*>(&masking_key_block) + i) =
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masking_key[masking_key_index];
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masking_key_index = (masking_key_index + 1) % masking_key_length;
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}
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while (cursor + kBlockSize <= cursor_end) {
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__m128i payload_block =
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_mm_load_si128(reinterpret_cast<__m128i*>(cursor));
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_mm_stream_si128(reinterpret_cast<__m128i*>(cursor),
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_mm_xor_si128(payload_block, masking_key_block));
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cursor += kBlockSize;
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}
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#endif
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while (cursor < cursor_end) {
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*cursor ^= masking_key[masking_key_index];
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++cursor;
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masking_key_index = (masking_key_index + 1) % masking_key_length;
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}
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}
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%}
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