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Revert "LibIPC+LibWeb: Delete LargeMessageWrapper workaround in IPC…

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…connection"

This reverts commit 2d625f5c23.
This commit is contained in:
Tim Ledbetter 2025-04-10 12:49:50 +01:00 • committed by Tim Ledbetter
parent 3fcdbef327
commit 1ee56d34e7
Notes: github-actions[bot] 2025-04-10 15:25:37 +00:00
11 changed files with 177 additions and 23 deletions
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50
Libraries/LibIPC/Message.cpp
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@ -6,6 +6,7 @@
#include <AK/Checked.h>
#include <LibIPC/Decoder.h>
#include <LibIPC/Encoder.h>
#include <LibIPC/Message.h>
namespace IPC {
@ -46,4 +47,53 @@ ErrorOr<void> MessageBuffer::transfer_message(Transport& transport)
return {};
}
NonnullOwnPtr<LargeMessageWrapper> LargeMessageWrapper::create(u32 endpoint_magic, MessageBuffer& buffer_to_wrap)
{
auto size = buffer_to_wrap.data().size();
auto wrapped_message_data = MUST(Core::AnonymousBuffer::create_with_size(size));
memcpy(wrapped_message_data.data<void>(), buffer_to_wrap.data().data(), size);
Vector<File> files;
for (auto& owned_fd : buffer_to_wrap.take_fds()) {
files.append(File::adopt_fd(owned_fd->take_fd()));
}
return make<LargeMessageWrapper>(endpoint_magic, move(wrapped_message_data), move(files));
}
LargeMessageWrapper::LargeMessageWrapper(u32 endpoint_magic, Core::AnonymousBuffer wrapped_message_data, Vector<File>&& wrapped_fds)
: m_endpoint_magic(endpoint_magic)
, m_wrapped_message_data(move(wrapped_message_data))
, m_wrapped_fds(move(wrapped_fds))
{
}
ErrorOr<MessageBuffer> LargeMessageWrapper::encode() const
{
MessageBuffer buffer;
Encoder stream { buffer };
TRY(stream.encode(m_endpoint_magic));
TRY(stream.encode(MESSAGE_ID));
TRY(stream.encode(m_wrapped_message_data));
TRY(stream.encode(m_wrapped_fds.size()));
for (auto const& wrapped_fd : m_wrapped_fds) {
TRY(stream.append_file_descriptor(wrapped_fd.take_fd()));
}
return buffer;
}
ErrorOr<NonnullOwnPtr<LargeMessageWrapper>> LargeMessageWrapper::decode(u32 endpoint_magic, Stream& stream, UnprocessedFileDescriptors& files)
{
Decoder decoder { stream, files };
auto wrapped_message_data = TRY(decoder.decode<Core::AnonymousBuffer>());
Vector<File> wrapped_fds;
auto num_fds = TRY(decoder.decode<u32>());
for (u32 i = 0; i < num_fds; ++i) {
auto fd = TRY(decoder.decode<IPC::File>());
wrapped_fds.append(move(fd));
}
return make<LargeMessageWrapper>(endpoint_magic, wrapped_message_data, move(wrapped_fds));
}
}