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LibCore+Everywhere: Make Core::Stream::read() return Bytes

Browse source 
A mistake I've repeatedly made is along these lines:
```c++
auto nread = TRY(source_file->read(buffer));
TRY(destination_file->write(buffer));
```

It's a little clunky to have to create a Bytes or StringView from the
buffer's data pointer and the nread, and easy to forget and just use
the buffer. So, this patch changes the read() function to return a
Bytes of the data that were just read.

The other read_foo() methods will be modified in the same way in
subsequent commits.

Fixes #13687
This commit is contained in:
Sam Atkins 2022-04-15 13:33:02 +01:00 committed by Tim Flynn
parent 6654efcd82
commit 3b1e063d30
Notes: sideshowbarker 2024-07-18 03:20:18 +09:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/SerenityOS/serenity/commit/3b1e063d30
Pull-request: https://github.com/SerenityOS/serenity/pull/13694
Reviewed-by: https://github.com/trflynn89
22 changed files with 103 additions and 103 deletions
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4
Meta/Lagom/Tools/CodeGenerators/LibUnicode/GeneratorUtil.h
View file

@ -259,8 +259,8 @@ inline ErrorOr<JsonValue> read_json_file(StringView path)
// FIXME: When Core::Stream supports reading an entire file, use that.
while (TRY(file->can_read_line())) {
auto nread = TRY(file->read(buffer));
TRY(builder.try_append(reinterpret_cast<char const*>(buffer.data()), nread));
auto bytes_read = TRY(file->read(buffer));
TRY(builder.try_append(StringView { bytes_read }));
}
return JsonValue::from_string(builder.build());

44
Tests/LibCore/TestLibCoreStream.cpp
View file

@ -63,7 +63,7 @@ TEST_CASE(file_read_bytes)
auto result = file->read(buffer);
EXPECT(!result.is_error());
EXPECT_EQ(result.value(), 131ul);
EXPECT_EQ(result.value().size(), 131ul);
StringView buffer_contents { buffer.bytes() };
EXPECT_EQ(buffer_contents, expected_buffer_contents);
@ -193,11 +193,11 @@ TEST_CASE(tcp_socket_read)
auto maybe_receive_buffer = ByteBuffer::create_uninitialized(64);
EXPECT(!maybe_receive_buffer.is_error());
auto receive_buffer = maybe_receive_buffer.release_value();
auto maybe_nread = client_socket->read(receive_buffer);
EXPECT(!maybe_nread.is_error());
auto nread = maybe_nread.release_value();
auto maybe_read_bytes = client_socket->read(receive_buffer);
EXPECT(!maybe_read_bytes.is_error());
auto read_bytes = maybe_read_bytes.release_value();
StringView received_data { receive_buffer.data(), nread };
StringView received_data { read_bytes };
EXPECT_EQ(sent_data, received_data);
}
@ -226,11 +226,11 @@ TEST_CASE(tcp_socket_write)
auto maybe_receive_buffer = ByteBuffer::create_uninitialized(64);
EXPECT(!maybe_receive_buffer.is_error());
auto receive_buffer = maybe_receive_buffer.release_value();
auto maybe_nread = server_socket->read(receive_buffer);
EXPECT(!maybe_nread.is_error());
auto nread = maybe_nread.release_value();
auto maybe_read_bytes = server_socket->read(receive_buffer);
EXPECT(!maybe_read_bytes.is_error());
auto read_bytes = maybe_read_bytes.release_value();
StringView received_data { receive_buffer.data(), nread };
StringView received_data { read_bytes };
EXPECT_EQ(sent_data, received_data);
}
@ -262,7 +262,7 @@ TEST_CASE(tcp_socket_eof)
auto maybe_receive_buffer = ByteBuffer::create_uninitialized(1);
EXPECT(!maybe_receive_buffer.is_error());
auto receive_buffer = maybe_receive_buffer.release_value();
EXPECT_EQ(client_socket->read(receive_buffer).release_value(), 0ul);
EXPECT(client_socket->read(receive_buffer).release_value().is_empty());
EXPECT(client_socket->is_eof());
}
@ -309,11 +309,11 @@ TEST_CASE(udp_socket_read_write)
auto maybe_client_receive_buffer = ByteBuffer::create_uninitialized(64);
EXPECT(!maybe_client_receive_buffer.is_error());
auto client_receive_buffer = maybe_client_receive_buffer.release_value();
auto maybe_nread = client_socket->read(client_receive_buffer);
EXPECT(!maybe_nread.is_error());
auto nread = maybe_nread.release_value();
auto maybe_read_bytes = client_socket->read(client_receive_buffer);
EXPECT(!maybe_read_bytes.is_error());
auto read_bytes = maybe_read_bytes.release_value();
StringView client_received_data { client_receive_buffer.data(), nread };
StringView client_received_data { read_bytes };
EXPECT_EQ(udp_reply_data, client_received_data);
}
@ -353,11 +353,11 @@ TEST_CASE(local_socket_read)
auto maybe_receive_buffer = ByteBuffer::create_uninitialized(64);
EXPECT(!maybe_receive_buffer.is_error());
auto receive_buffer = maybe_receive_buffer.release_value();
auto maybe_nread = client_socket->read(receive_buffer);
EXPECT(!maybe_nread.is_error());
auto nread = maybe_nread.release_value();
auto maybe_read_bytes = client_socket->read(receive_buffer);
EXPECT(!maybe_read_bytes.is_error());
auto read_bytes = maybe_read_bytes.release_value();
StringView received_data { receive_buffer.data(), nread };
StringView received_data { read_bytes };
EXPECT_EQ(sent_data, received_data);
return 0;
@ -384,11 +384,11 @@ TEST_CASE(local_socket_write)
auto maybe_receive_buffer = ByteBuffer::create_uninitialized(pending_bytes);
EXPECT(!maybe_receive_buffer.is_error());
auto receive_buffer = maybe_receive_buffer.release_value();
auto maybe_nread = server_socket->read(receive_buffer);
EXPECT(!maybe_nread.is_error());
EXPECT_EQ(maybe_nread.value(), sent_data.length());
auto maybe_read_bytes = server_socket->read(receive_buffer);
EXPECT(!maybe_read_bytes.is_error());
EXPECT_EQ(maybe_read_bytes.value().size(), sent_data.length());
StringView received_data { receive_buffer.data(), maybe_nread.value() };
StringView received_data { maybe_read_bytes.value() };
EXPECT_EQ(sent_data, received_data);
event_loop.quit(0);

4
Tests/LibTLS/TestTLSHandshake.cpp
View file

@ -79,8 +79,8 @@ TEST_CASE(test_TLS_hello_handshake)
auto tls = MUST(TLS::TLSv12::connect(DEFAULT_SERVER, port, move(options)));
ByteBuffer contents;
tls->on_ready_to_read = [&] {
auto nread = MUST(tls->read(contents.must_get_bytes_for_writing(4 * KiB)));
if (nread == 0) {
auto read_bytes = MUST(tls->read(contents.must_get_bytes_for_writing(4 * KiB)));
if (read_bytes.is_empty()) {
FAIL("No data received");
loop.quit(1);
}

2
Userland/Libraries/LibAudio/FlacLoader.cpp
View file

@ -114,7 +114,7 @@ MaybeLoaderError FlacLoaderPlugin::parse_header()
[[maybe_unused]] u128 md5_checksum;
VERIFY(streaminfo_data->is_aligned_to_byte_boundary());
auto md5_bytes_read = LOADER_TRY(streaminfo_data->read(md5_checksum.bytes()));
FLAC_VERIFY(md5_bytes_read == md5_checksum.my_size(), LoaderError::Category::IO, "MD5 Checksum size");
FLAC_VERIFY(md5_bytes_read.size() == md5_checksum.my_size(), LoaderError::Category::IO, "MD5 Checksum size");
md5_checksum.bytes().copy_to({ m_md5_checksum, sizeof(m_md5_checksum) });
// Parse other blocks

20
Userland/Libraries/LibCore/EventLoop.cpp
View file

@ -162,31 +162,31 @@ private:
#ifdef __serenity__
m_socket->on_ready_to_read = [this] {
u32 length;
auto maybe_nread = m_socket->read({ (u8*)&length, sizeof(length) });
if (maybe_nread.is_error()) {
dbgln("InspectorServerConnection: Failed to read message length from inspector server connection: {}", maybe_nread.error());
auto maybe_bytes_read = m_socket->read({ (u8*)&length, sizeof(length) });
if (maybe_bytes_read.is_error()) {
dbgln("InspectorServerConnection: Failed to read message length from inspector server connection: {}", maybe_bytes_read.error());
shutdown();
return;
}
auto nread = maybe_nread.release_value();
if (nread == 0) {
auto bytes_read = maybe_bytes_read.release_value();
if (bytes_read.is_empty()) {
dbgln_if(EVENTLOOP_DEBUG, "RPC client disconnected");
shutdown();
return;
}
VERIFY(nread == sizeof(length));
VERIFY(bytes_read.size() == sizeof(length));
auto request_buffer = ByteBuffer::create_uninitialized(length).release_value();
maybe_nread = m_socket->read(request_buffer.bytes());
if (maybe_nread.is_error()) {
dbgln("InspectorServerConnection: Failed to read message content from inspector server connection: {}", maybe_nread.error());
maybe_bytes_read = m_socket->read(request_buffer.bytes());
if (maybe_bytes_read.is_error()) {
dbgln("InspectorServerConnection: Failed to read message content from inspector server connection: {}", maybe_bytes_read.error());
shutdown();
return;
}
nread = maybe_nread.release_value();
bytes_read = maybe_bytes_read.release_value();
auto request_json = JsonValue::from_string(request_buffer);
if (request_json.is_error() || !request_json.value().is_object()) {

2
Userland/Libraries/LibCore/InputBitStream.h
View file

@ -31,7 +31,7 @@ public:
// ^Stream
virtual bool is_readable() const override { return m_stream.is_readable(); }
virtual ErrorOr<size_t> read(Bytes bytes) override
virtual ErrorOr<Bytes> read(Bytes bytes) override
{
if (m_current_byte.has_value() && is_aligned_to_byte_boundary()) {
bytes[0] = m_current_byte.release_value();

6
Userland/Libraries/LibCore/MemoryStream.h
View file

@ -29,15 +29,15 @@ public:
// FIXME: It doesn't make sense to truncate a memory stream. Therefore, we don't do anything here. Is that fine?
virtual ErrorOr<void> truncate(off_t) override { return Error::from_errno(ENOTSUP); }
virtual ErrorOr<size_t> read(Bytes bytes) override
virtual ErrorOr<Bytes> read(Bytes bytes) override
{
auto to_read = min(remaining(), bytes.size());
if (to_read == 0)
return 0;
return Bytes {};
m_bytes.slice(m_offset, to_read).copy_to(bytes);
m_offset += to_read;
return bytes.size();
return bytes.trim(to_read);
}
virtual ErrorOr<off_t> seek(i64 offset, SeekMode seek_mode = SeekMode::SetPosition) override

16
Userland/Libraries/LibCore/SOCKSProxyClient.cpp
View file

@ -107,7 +107,7 @@ ErrorOr<void> send_version_identifier_and_method_selection_message(Core::Stream:
return Error::from_string_literal("SOCKS negotiation failed: Failed to send version identifier and method selection message");
Socks5InitialResponse response;
size = TRY(socket.read({ &response, sizeof(response) }));
size = TRY(socket.read({ &response, sizeof(response) })).size();
if (size != sizeof(response))
return Error::from_string_literal("SOCKS negotiation failed: Failed to receive initial response");
@ -169,7 +169,7 @@ ErrorOr<Reply> send_connect_request_message(Core::Stream::Socket& socket, Core::
return Error::from_string_literal("SOCKS negotiation failed: Failed to send connect request");
Socks5ConnectResponseHeader response_header;
size = TRY(socket.read({ &response_header, sizeof(response_header) }));
size = TRY(socket.read({ &response_header, sizeof(response_header) })).size();
if (size != sizeof(response_header))
return Error::from_string_literal("SOCKS negotiation failed: Failed to receive connect response header");
@ -177,26 +177,26 @@ ErrorOr<Reply> send_connect_request_message(Core::Stream::Socket& socket, Core::
return Error::from_string_literal("SOCKS negotiation failed: Invalid version identifier");
u8 response_address_type;
size = TRY(socket.read({ &response_address_type, sizeof(response_address_type) }));
size = TRY(socket.read({ &response_address_type, sizeof(response_address_type) })).size();
if (size != sizeof(response_address_type))
return Error::from_string_literal("SOCKS negotiation failed: Failed to receive connect response address type");
switch (AddressType(response_address_type)) {
case AddressType::IPV4: {
u8 response_address_data[4];
size = TRY(socket.read({ response_address_data, sizeof(response_address_data) }));
size = TRY(socket.read({ response_address_data, sizeof(response_address_data) })).size();
if (size != sizeof(response_address_data))
return Error::from_string_literal("SOCKS negotiation failed: Failed to receive connect response address data");
break;
}
case AddressType::DomainName: {
u8 response_address_length;
size = TRY(socket.read({ &response_address_length, sizeof(response_address_length) }));
size = TRY(socket.read({ &response_address_length, sizeof(response_address_length) })).size();
if (size != sizeof(response_address_length))
return Error::from_string_literal("SOCKS negotiation failed: Failed to receive connect response address length");
ByteBuffer buffer;
buffer.resize(response_address_length);
size = TRY(socket.read(buffer));
size = TRY(socket.read(buffer)).size();
if (size != response_address_length)
return Error::from_string_literal("SOCKS negotiation failed: Failed to receive connect response address data");
break;
@ -207,7 +207,7 @@ ErrorOr<Reply> send_connect_request_message(Core::Stream::Socket& socket, Core::
}
u16 bound_port;
size = TRY(socket.read({ &bound_port, sizeof(bound_port) }));
size = TRY(socket.read({ &bound_port, sizeof(bound_port) })).size();
if (size != sizeof(bound_port))
return Error::from_string_literal("SOCKS negotiation failed: Failed to receive connect response bound port");
@ -247,7 +247,7 @@ ErrorOr<u8> send_username_password_authentication_message(Core::Stream::Socket&
return Error::from_string_literal("SOCKS negotiation failed: Failed to send username/password authentication message");
Socks5UsernamePasswordResponse response;
size = TRY(socket.read({ &response, sizeof(response) }));
size = TRY(socket.read({ &response, sizeof(response) })).size();
if (size != sizeof(response))
return Error::from_string_literal("SOCKS negotiation failed: Failed to receive username/password authentication response");

2
Userland/Libraries/LibCore/SOCKSProxyClient.h
View file

@ -37,7 +37,7 @@ public:
virtual ~SOCKSProxyClient() override;
// ^Stream::Stream
virtual ErrorOr<size_t> read(Bytes bytes) override { return m_socket.read(bytes); }
virtual ErrorOr<Bytes> read(Bytes bytes) override { return m_socket.read(bytes); }
virtual ErrorOr<size_t> write(ReadonlyBytes bytes) override { return m_socket.write(bytes); }
virtual bool is_eof() const override { return m_socket.is_eof(); }
virtual bool is_open() const override { return m_socket.is_open(); }

12
Userland/Libraries/LibCore/Stream.cpp
View file

@ -41,7 +41,7 @@ bool Stream::read_or_error(Bytes buffer)
return false;
}
nread += result.value();
nread += result.value().size();
} while (nread < buffer.size());
return true;
@ -156,7 +156,7 @@ ErrorOr<void> File::open_path(StringView filename, mode_t permissions)
bool File::is_readable() const { return has_flag(m_mode, OpenMode::Read); }
bool File::is_writable() const { return has_flag(m_mode, OpenMode::Write); }
ErrorOr<size_t> File::read(Bytes buffer)
ErrorOr<Bytes> File::read(Bytes buffer)
{
if (!has_flag(m_mode, OpenMode::Read)) {
// NOTE: POSIX says that if the fd is not open for reading, the call
@ -167,7 +167,7 @@ ErrorOr<size_t> File::read(Bytes buffer)
ssize_t nread = TRY(System::read(m_fd, buffer));
m_last_read_was_eof = nread == 0;
return nread;
return buffer.trim(nread);
}
ErrorOr<size_t> File::write(ReadonlyBytes buffer)
@ -322,7 +322,7 @@ ErrorOr<void> Socket::connect_inet(int fd, SocketAddress const& address)
return System::connect(fd, bit_cast<struct sockaddr*>(&addr), sizeof(addr));
}
ErrorOr<size_t> PosixSocketHelper::read(Bytes buffer, int flags)
ErrorOr<Bytes> PosixSocketHelper::read(Bytes buffer, int flags)
{
if (!is_open()) {
return Error::from_errno(ENOTCONN);
@ -337,7 +337,7 @@ ErrorOr<size_t> PosixSocketHelper::read(Bytes buffer, int flags)
if (m_last_read_was_eof && m_notifier)
m_notifier->set_enabled(false);
return nread;
return buffer.trim(nread);
}
ErrorOr<size_t> PosixSocketHelper::write(ReadonlyBytes buffer)
@ -554,7 +554,7 @@ ErrorOr<pid_t> LocalSocket::peer_pid() const
ErrorOr<size_t> LocalSocket::read_without_waiting(Bytes buffer)
{
return m_helper.read(buffer, MSG_DONTWAIT);
return TRY(m_helper.read(buffer, MSG_DONTWAIT)).size();
}
ErrorOr<int> LocalSocket::release_fd()

26
Userland/Libraries/LibCore/Stream.h
View file

@ -31,9 +31,9 @@ public:
virtual bool is_readable() const { return false; }
/// Reads into a buffer, with the maximum size being the size of the buffer.
/// The amount of bytes read can be smaller than the size of the buffer.
/// Returns either the amount of bytes read, or an errno in the case of
/// Returns either the bytes that were read, or an errno in the case of
/// failure.
virtual ErrorOr<size_t> read(Bytes) = 0;
virtual ErrorOr<Bytes> read(Bytes) = 0;
/// Tries to fill the entire buffer through reading. Returns whether the
/// buffer was filled without an error.
virtual bool read_or_error(Bytes);
@ -194,7 +194,7 @@ public:
}
virtual bool is_readable() const override;
virtual ErrorOr<size_t> read(Bytes) override;
virtual ErrorOr<Bytes> read(Bytes) override;
virtual bool is_writable() const override;
virtual ErrorOr<size_t> write(ReadonlyBytes) override;
virtual bool is_eof() const override;
@ -243,7 +243,7 @@ public:
int fd() const { return m_fd; }
void set_fd(int fd) { m_fd = fd; }
ErrorOr<size_t> read(Bytes, int flags = 0);
ErrorOr<Bytes> read(Bytes, int flags = 0);
ErrorOr<size_t> write(ReadonlyBytes);
bool is_eof() const { return !is_open() || m_last_read_was_eof; }
@ -292,7 +292,7 @@ public:
virtual bool is_readable() const override { return is_open(); }
virtual bool is_writable() const override { return is_open(); }
virtual ErrorOr<size_t> read(Bytes buffer) override { return m_helper.read(buffer); }
virtual ErrorOr<Bytes> read(Bytes buffer) override { return m_helper.read(buffer); }
virtual ErrorOr<size_t> write(ReadonlyBytes buffer) override { return m_helper.write(buffer); }
virtual bool is_eof() const override { return m_helper.is_eof(); }
virtual bool is_open() const override { return m_helper.is_open(); };
@ -351,7 +351,7 @@ public:
return *this;
}
virtual ErrorOr<size_t> read(Bytes buffer) override
virtual ErrorOr<Bytes> read(Bytes buffer) override
{
auto pending_bytes = TRY(this->pending_bytes());
if (pending_bytes > buffer.size()) {
@ -426,7 +426,7 @@ public:
virtual bool is_readable() const override { return is_open(); }
virtual bool is_writable() const override { return is_open(); }
virtual ErrorOr<size_t> read(Bytes buffer) override { return m_helper.read(buffer); }
virtual ErrorOr<Bytes> read(Bytes buffer) override { return m_helper.read(buffer); }
virtual ErrorOr<size_t> write(ReadonlyBytes buffer) override { return m_helper.write(buffer); }
virtual bool is_eof() const override { return m_helper.is_eof(); }
virtual bool is_open() const override { return m_helper.is_open(); }
@ -523,7 +523,7 @@ public:
T& stream() { return *m_stream; }
T const& stream() const { return *m_stream; }
ErrorOr<size_t> read(Bytes buffer)
ErrorOr<Bytes> read(Bytes buffer)
{
if (!stream().is_open())
return Error::from_errno(ENOTCONN);
@ -552,7 +552,7 @@ public:
m_buffered_size -= amount_to_take;
}
return buffer_nread;
return Bytes { buffer.data(), buffer_nread };
}
// Reads into the buffer until \n is encountered.
@ -715,7 +715,7 @@ private:
break;
return result.error();
}
auto read_size = result.value();
auto read_size = result.value().size();
m_buffered_size += read_size;
nread += read_size;
break;
@ -752,7 +752,7 @@ public:
BufferedSeekable& operator=(BufferedSeekable&& other) = default;
virtual bool is_readable() const override { return m_helper.stream().is_readable(); }
virtual ErrorOr<size_t> read(Bytes buffer) override { return m_helper.read(move(buffer)); }
virtual ErrorOr<Bytes> read(Bytes buffer) override { return m_helper.read(move(buffer)); }
virtual bool is_writable() const override { return m_helper.stream().is_writable(); }
virtual ErrorOr<size_t> write(ReadonlyBytes buffer) override { return m_helper.stream().write(buffer); }
virtual bool is_eof() const override { return m_helper.is_eof(); }
@ -823,7 +823,7 @@ public:
}
virtual bool is_readable() const override { return m_helper.stream().is_readable(); }
virtual ErrorOr<size_t> read(Bytes buffer) override { return m_helper.read(move(buffer)); }
virtual ErrorOr<Bytes> read(Bytes buffer) override { return m_helper.read(move(buffer)); }
virtual bool is_writable() const override { return m_helper.stream().is_writable(); }
virtual ErrorOr<size_t> write(ReadonlyBytes buffer) override { return m_helper.stream().write(buffer); }
virtual bool is_eof() const override { return m_helper.is_eof(); }
@ -911,7 +911,7 @@ public:
}
virtual bool is_readable() const override { return m_socket.is_readable(); }
virtual ErrorOr<size_t> read(Bytes buffer) override { return m_socket.read(move(buffer)); }
virtual ErrorOr<Bytes> read(Bytes buffer) override { return m_socket.read(move(buffer)); }
virtual bool is_writable() const override { return m_socket.is_writable(); }
virtual ErrorOr<size_t> write(ReadonlyBytes buffer) override { return m_socket.write(buffer); }
virtual bool is_eof() const override { return m_socket.is_eof(); }

2
Userland/Libraries/LibGemini/Job.cpp
View file

@ -63,7 +63,7 @@ String Job::read_line(size_t size)
ByteBuffer Job::receive(size_t size)
{
ByteBuffer buffer = ByteBuffer::create_uninitialized(size).release_value_but_fixme_should_propagate_errors();
auto nread = MUST(m_socket->read(buffer));
auto nread = MUST(m_socket->read(buffer)).size();
return buffer.slice(0, nread);
}

2
Userland/Libraries/LibHTTP/Job.cpp
View file

@ -172,7 +172,7 @@ ErrorOr<ByteBuffer> Job::receive(size_t size)
auto result = m_socket->read(buffer);
if (result.is_error() && result.error().is_errno() && result.error().code() == EINTR)
continue;
nread = TRY(result);
nread = TRY(result).size();
break;
} while (true);
return buffer.slice(0, nread);

6
Userland/Libraries/LibProtocol/Request.cpp
View file

@ -51,10 +51,10 @@ void Request::stream_into_impl(T& stream)
break;
if (result.is_error())
continue;
auto nread = result.value();
if (nread == 0)
auto read_bytes = result.release_value();
if (read_bytes.is_empty())
break;
if (!stream.write_or_error({ buf, nread })) {
if (!stream.write_or_error(read_bytes)) {
// FIXME: What do we do here?
TODO();
}

14
Userland/Libraries/LibTLS/Socket.cpp
View file

@ -18,18 +18,18 @@ constexpr static size_t MaximumApplicationDataChunkSize = 16 * KiB;
namespace TLS {
ErrorOr<size_t> TLSv12::read(Bytes bytes)
ErrorOr<Bytes> TLSv12::read(Bytes bytes)
{
m_eof = false;
auto size_to_read = min(bytes.size(), m_context.application_buffer.size());
if (size_to_read == 0) {
m_eof = true;
return 0;
return Bytes {};
}
m_context.application_buffer.span().slice(0, size_to_read).copy_to(bytes);
m_context.application_buffer = m_context.application_buffer.slice(size_to_read, m_context.application_buffer.size() - size_to_read);
return size_to_read;
return Bytes { bytes.data(), size_to_read };
}
String TLSv12::read_line(size_t max_size)
@ -186,7 +186,7 @@ ErrorOr<void> TLSv12::read_from_socket()
u8 buffer[16 * KiB];
Bytes bytes { buffer, array_size(buffer) };
size_t nread = 0;
Bytes read_bytes {};
auto& stream = underlying_stream();
do {
auto result = stream.read(bytes);
@ -198,9 +198,9 @@ ErrorOr<void> TLSv12::read_from_socket()
}
continue;
}
nread = result.release_value();
consume(bytes.slice(0, nread));
} while (nread > 0 && !m_context.critical_error);
read_bytes = result.release_value();
consume(read_bytes);
} while (!read_bytes.is_empty() && !m_context.critical_error);
return {};
}

4
Userland/Libraries/LibTLS/TLSv12.h
View file

@ -356,9 +356,9 @@ public:
/// Reads into a buffer, with the maximum size being the size of the buffer.
/// The amount of bytes read can be smaller than the size of the buffer.
/// Returns either the amount of bytes read, or an errno in the case of
/// Returns either the bytes that were read, or an errno in the case of
/// failure.
virtual ErrorOr<size_t> read(Bytes) override;
virtual ErrorOr<Bytes> read(Bytes) override;
/// Tries to write the entire contents of the buffer. It is possible for
/// less than the full buffer to be written. Returns either the amount of

4
Userland/Libraries/LibWebSocket/Impl/WebSocketImpl.cpp
View file

@ -56,8 +56,8 @@ void WebSocketImpl::connect(ConnectionInfo const& connection_info)
ErrorOr<ByteBuffer> WebSocketImpl::read(int max_size)
{
auto buffer = TRY(ByteBuffer::create_uninitialized(max_size));
auto nread = TRY(m_socket->read(buffer));
return buffer.slice(0, nread);
auto read_bytes = TRY(m_socket->read(buffer));
return buffer.slice(0, read_bytes.size());
}
ErrorOr<String> WebSocketImpl::read_line(size_t size)

6
Userland/Services/EchoServer/Client.cpp
View file

@ -30,16 +30,16 @@ ErrorOr<void> Client::drain_socket()
auto buffer = TRY(ByteBuffer::create_uninitialized(1024));
while (TRY(m_socket->can_read_without_blocking())) {
auto nread = TRY(m_socket->read(buffer));
auto bytes_read = TRY(m_socket->read(buffer));
dbgln("Read {} bytes.", nread);
dbgln("Read {} bytes.", bytes_read.size());
if (m_socket->is_eof()) {
Core::deferred_invoke([this, strong_this = NonnullRefPtr(*this)] { quit(); });
break;
}
TRY(m_socket->write({ buffer.data(), nread }));
TRY(m_socket->write(bytes_read));
}
return {};

8
Userland/Services/FileOperation/main.cpp
View file

@ -238,15 +238,15 @@ ErrorOr<int> execute_work_items(Vector<WorkItem> const& items)
while (true) {
print_progress();
auto bytes_read = TRY(source_file->read(buffer.bytes()));
if (bytes_read == 0)
if (bytes_read.is_empty())
break;
if (auto result = destination_file->write(buffer); result.is_error()) {
if (auto result = destination_file->write(bytes_read); result.is_error()) {
// FIXME: Return the formatted string directly. There is no way to do this right now without the temporary going out of scope and being destroyed.
report_warning(String::formatted("Failed to write to destination file: {}", result.error()));
return result.error();
}
item_done += bytes_read;
executed_work_bytes += bytes_read;
item_done += bytes_read.size();
executed_work_bytes += bytes_read.size();
print_progress();
// FIXME: Remove this once the kernel is smart enough to schedule other threads
// while we're doing heavy I/O. Right now, copying a large file will totally

16
Userland/Services/InspectorServer/InspectableProcess.cpp
View file

@ -43,8 +43,8 @@ String InspectableProcess::wait_for_response()
}
u32 length {};
auto nread = m_socket->read({ (u8*)&length, sizeof(length) }).release_value_but_fixme_should_propagate_errors();
if (nread != sizeof(length)) {
auto length_bytes_read = m_socket->read({ (u8*)&length, sizeof(length) }).release_value_but_fixme_should_propagate_errors();
if (length_bytes_read.size() != sizeof(length)) {
dbgln("InspectableProcess got malformed data: PID {}", m_pid);
m_socket->close();
return {};
@ -54,17 +54,17 @@ String InspectableProcess::wait_for_response()
auto remaining_data_buffer = data_buffer.bytes();
while (!remaining_data_buffer.is_empty()) {
auto maybe_nread = m_socket->read(remaining_data_buffer);
if (maybe_nread.is_error()) {
dbgln("InspectableProcess::wait_for_response: Failed to read data: {}", maybe_nread.error());
auto maybe_bytes_read = m_socket->read(remaining_data_buffer);
if (maybe_bytes_read.is_error()) {
dbgln("InspectableProcess::wait_for_response: Failed to read data: {}", maybe_bytes_read.error());
break;
}
auto nread = maybe_nread.release_value();
if (nread == 0)
auto bytes_read = maybe_bytes_read.release_value();
if (bytes_read.is_empty())
break;
remaining_data_buffer = remaining_data_buffer.slice(nread);
remaining_data_buffer = remaining_data_buffer.slice(bytes_read.size());
}
VERIFY(data_buffer.size() == length);

2
Userland/Services/LookupServer/LookupServer.cpp
View file

@ -239,7 +239,7 @@ ErrorOr<Vector<Answer>> LookupServer::lookup(Name const& name, String const& nam
TRY(udp_socket->write(buffer));
u8 response_buffer[4096];
int nrecv = TRY(udp_socket->read({ response_buffer, sizeof(response_buffer) }));
int nrecv = TRY(udp_socket->read({ response_buffer, sizeof(response_buffer) })).size();
if (udp_socket->is_eof())
return Vector<Answer> {};

4
Userland/Services/TelnetServer/Client.cpp
View file

@ -76,9 +76,9 @@ ErrorOr<void> Client::drain_socket()
auto buffer = TRY(ByteBuffer::create_uninitialized(1024));
while (TRY(m_socket->can_read_without_blocking())) {
auto nread = TRY(m_socket->read(buffer));
auto read_bytes = TRY(m_socket->read(buffer));
m_parser.write({ buffer.data(), nread });
m_parser.write(StringView { read_bytes });
if (m_socket->is_eof()) {
Core::deferred_invoke([this, strong_this = NonnullRefPtr(*this)] { quit(); });