From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../pywebsocket3/mod_pywebsocket/fast_masking.i | 98 ++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 testing/mochitest/pywebsocket3/mod_pywebsocket/fast_masking.i (limited to 'testing/mochitest/pywebsocket3/mod_pywebsocket/fast_masking.i') diff --git a/testing/mochitest/pywebsocket3/mod_pywebsocket/fast_masking.i b/testing/mochitest/pywebsocket3/mod_pywebsocket/fast_masking.i new file mode 100644 index 0000000000..ddaad27f53 --- /dev/null +++ b/testing/mochitest/pywebsocket3/mod_pywebsocket/fast_masking.i @@ -0,0 +1,98 @@ +// Copyright 2013, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + +%module fast_masking + +%include "cstring.i" + +%{ +#include + +#ifdef __SSE2__ +#include +#endif +%} + +%apply (char *STRING, int LENGTH) { + (const char* payload, int payload_length), + (const char* masking_key, int masking_key_length) }; +%cstring_output_allocate_size( + char** result, int* result_length, delete [] *$1); + +%inline %{ + +void mask( + const char* payload, int payload_length, + const char* masking_key, int masking_key_length, + int masking_key_index, + char** result, int* result_length) { + *result = new char[payload_length]; + *result_length = payload_length; + memcpy(*result, payload, payload_length); + + char* cursor = *result; + char* cursor_end = *result + *result_length; + +#ifdef __SSE2__ + while ((cursor < cursor_end) && + (reinterpret_cast(cursor) & 0xf)) { + *cursor ^= masking_key[masking_key_index]; + ++cursor; + masking_key_index = (masking_key_index + 1) % masking_key_length; + } + if (cursor == cursor_end) { + return; + } + + const int kBlockSize = 16; + __m128i masking_key_block; + for (int i = 0; i < kBlockSize; ++i) { + *(reinterpret_cast(&masking_key_block) + i) = + masking_key[masking_key_index]; + masking_key_index = (masking_key_index + 1) % masking_key_length; + } + + while (cursor + kBlockSize <= cursor_end) { + __m128i payload_block = + _mm_load_si128(reinterpret_cast<__m128i*>(cursor)); + _mm_stream_si128(reinterpret_cast<__m128i*>(cursor), + _mm_xor_si128(payload_block, masking_key_block)); + cursor += kBlockSize; + } +#endif + + while (cursor < cursor_end) { + *cursor ^= masking_key[masking_key_index]; + ++cursor; + masking_key_index = (masking_key_index + 1) % masking_key_length; + } +} + +%} -- cgit v1.2.3