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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
commit | 9e3c08db40b8916968b9f30096c7be3f00ce9647 (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /other-licenses/snappy/src/snappy-sinksource.cc | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'other-licenses/snappy/src/snappy-sinksource.cc')
-rw-r--r-- | other-licenses/snappy/src/snappy-sinksource.cc | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/other-licenses/snappy/src/snappy-sinksource.cc b/other-licenses/snappy/src/snappy-sinksource.cc new file mode 100644 index 0000000000..8214964a7e --- /dev/null +++ b/other-licenses/snappy/src/snappy-sinksource.cc @@ -0,0 +1,121 @@ +// Copyright 2011 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. + +#include <stddef.h> +#include <cstring> + +#include "snappy-sinksource.h" + +namespace snappy { + +Source::~Source() = default; + +Sink::~Sink() = default; + +char* Sink::GetAppendBuffer(size_t length, char* scratch) { + // TODO: Switch to [[maybe_unused]] when we can assume C++17. + (void)length; + + return scratch; +} + +char* Sink::GetAppendBufferVariable( + size_t min_size, size_t desired_size_hint, char* scratch, + size_t scratch_size, size_t* allocated_size) { + // TODO: Switch to [[maybe_unused]] when we can assume C++17. + (void)min_size; + (void)desired_size_hint; + + *allocated_size = scratch_size; + return scratch; +} + +void Sink::AppendAndTakeOwnership( + char* bytes, size_t n, + void (*deleter)(void*, const char*, size_t), + void *deleter_arg) { + Append(bytes, n); + (*deleter)(deleter_arg, bytes, n); +} + +ByteArraySource::~ByteArraySource() = default; + +size_t ByteArraySource::Available() const { return left_; } + +const char* ByteArraySource::Peek(size_t* len) { + *len = left_; + return ptr_; +} + +void ByteArraySource::Skip(size_t n) { + left_ -= n; + ptr_ += n; +} + +UncheckedByteArraySink::~UncheckedByteArraySink() { } + +void UncheckedByteArraySink::Append(const char* data, size_t n) { + // Do no copying if the caller filled in the result of GetAppendBuffer() + if (data != dest_) { + std::memcpy(dest_, data, n); + } + dest_ += n; +} + +char* UncheckedByteArraySink::GetAppendBuffer(size_t len, char* scratch) { + // TODO: Switch to [[maybe_unused]] when we can assume C++17. + (void)len; + (void)scratch; + + return dest_; +} + +void UncheckedByteArraySink::AppendAndTakeOwnership( + char* bytes, size_t n, + void (*deleter)(void*, const char*, size_t), + void *deleter_arg) { + if (bytes != dest_) { + std::memcpy(dest_, bytes, n); + (*deleter)(deleter_arg, bytes, n); + } + dest_ += n; +} + +char* UncheckedByteArraySink::GetAppendBufferVariable( + size_t min_size, size_t desired_size_hint, char* scratch, + size_t scratch_size, size_t* allocated_size) { + // TODO: Switch to [[maybe_unused]] when we can assume C++17. + (void)min_size; + (void)scratch; + (void)scratch_size; + + *allocated_size = desired_size_hint; + return dest_; +} + +} // namespace snappy |