mirror of
https://github.com/RGBCube/serenity
synced 2025-07-23 10:37:41 +00:00
LibIPC: Make IPC::Connection::post_message() return ErrorOr
This commit is contained in:
parent
982ac34437
commit
8d76eb773f
4 changed files with 30 additions and 23 deletions
|
@ -553,7 +553,8 @@ public:
|
|||
auto result = m_connection.template send_sync_but_allow_failure<Messages::@endpoint.name@::@message.pascal_name@>()~~~");
|
||||
} else {
|
||||
message_generator.append(R"~~~(
|
||||
m_connection.post_message(Messages::@endpoint.name@::@message.pascal_name@ { )~~~");
|
||||
// FIXME: Handle post_message failures.
|
||||
(void) m_connection.post_message(Messages::@endpoint.name@::@message.pascal_name@ { )~~~");
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < parameters.size(); ++i) {
|
||||
|
|
|
@ -4,6 +4,7 @@
|
|||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#include <LibCore/System.h>
|
||||
#include <LibIPC/Connection.h>
|
||||
#include <LibIPC/Stub.h>
|
||||
#include <sys/select.h>
|
||||
|
@ -23,28 +24,28 @@ ConnectionBase::~ConnectionBase()
|
|||
{
|
||||
}
|
||||
|
||||
void ConnectionBase::post_message(Message const& message)
|
||||
ErrorOr<void> ConnectionBase::post_message(Message const& message)
|
||||
{
|
||||
post_message(message.encode());
|
||||
return post_message(message.encode());
|
||||
}
|
||||
|
||||
void ConnectionBase::post_message(MessageBuffer buffer)
|
||||
ErrorOr<void> ConnectionBase::post_message(MessageBuffer buffer)
|
||||
{
|
||||
// NOTE: If this connection is being shut down, but has not yet been destroyed,
|
||||
// the socket will be closed. Don't try to send more messages.
|
||||
if (!m_socket->is_open())
|
||||
return;
|
||||
return Error::from_string_literal("Trying to post_message during IPC shutdown"sv);
|
||||
|
||||
// Prepend the message size.
|
||||
uint32_t message_size = buffer.data.size();
|
||||
buffer.data.prepend(reinterpret_cast<const u8*>(&message_size), sizeof(message_size));
|
||||
TRY(buffer.data.try_prepend(reinterpret_cast<const u8*>(&message_size), sizeof(message_size)));
|
||||
|
||||
#ifdef __serenity__
|
||||
for (auto& fd : buffer.fds) {
|
||||
auto rc = sendfd(m_socket->fd(), fd.value());
|
||||
if (rc < 0) {
|
||||
perror("sendfd");
|
||||
if (auto result = Core::System::sendfd(m_socket->fd(), fd.value()); result.is_error()) {
|
||||
dbgln("{}", result.error());
|
||||
shutdown();
|
||||
return result;
|
||||
}
|
||||
}
|
||||
#else
|
||||
|
@ -58,23 +59,21 @@ void ConnectionBase::post_message(MessageBuffer buffer)
|
|||
if (nwritten < 0) {
|
||||
switch (errno) {
|
||||
case EPIPE:
|
||||
dbgln("{}::post_message: Disconnected from peer", static_cast<Core::Object const&>(*this));
|
||||
shutdown();
|
||||
return;
|
||||
return Error::from_string_literal("IPC::Connection::post_message: Disconnected from peer"sv);
|
||||
case EAGAIN:
|
||||
dbgln("{}::post_message: Peer buffer overflowed", static_cast<Core::Object const&>(*this));
|
||||
shutdown();
|
||||
return;
|
||||
return Error::from_string_literal("IPC::Connection::post_message: Peer buffer overflowed"sv);
|
||||
default:
|
||||
perror("Connection::post_message write");
|
||||
shutdown();
|
||||
return;
|
||||
return Error::from_syscall("IPC::Connection::post_message write"sv, -errno);
|
||||
}
|
||||
}
|
||||
total_nwritten += nwritten;
|
||||
}
|
||||
|
||||
m_responsiveness_timer->start();
|
||||
return {};
|
||||
}
|
||||
|
||||
void ConnectionBase::shutdown()
|
||||
|
@ -88,9 +87,13 @@ void ConnectionBase::handle_messages()
|
|||
{
|
||||
auto messages = move(m_unprocessed_messages);
|
||||
for (auto& message : messages) {
|
||||
if (message.endpoint_magic() == m_local_endpoint_magic)
|
||||
if (auto response = m_local_stub.handle(message))
|
||||
post_message(*response);
|
||||
if (message.endpoint_magic() == m_local_endpoint_magic) {
|
||||
if (auto response = m_local_stub.handle(message)) {
|
||||
if (auto result = post_message(*response); result.is_error()) {
|
||||
dbgln("IPC::ConnectionBase::handle_messages: {}", result.error());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -33,7 +33,7 @@ public:
|
|||
virtual ~ConnectionBase() override;
|
||||
|
||||
bool is_open() const { return m_socket->is_open(); }
|
||||
void post_message(Message const&);
|
||||
ErrorOr<void> post_message(Message const&);
|
||||
|
||||
void shutdown();
|
||||
virtual void die() { }
|
||||
|
@ -52,7 +52,7 @@ protected:
|
|||
ErrorOr<Vector<u8>> read_as_much_as_possible_from_socket_without_blocking();
|
||||
ErrorOr<void> drain_messages_from_peer();
|
||||
|
||||
void post_message(MessageBuffer);
|
||||
ErrorOr<void> post_message(MessageBuffer);
|
||||
void handle_messages();
|
||||
|
||||
IPC::Stub& m_local_stub;
|
||||
|
@ -90,7 +90,7 @@ public:
|
|||
template<typename RequestType, typename... Args>
|
||||
NonnullOwnPtr<typename RequestType::ResponseType> send_sync(Args&&... args)
|
||||
{
|
||||
post_message(RequestType(forward<Args>(args)...));
|
||||
MUST(post_message(RequestType(forward<Args>(args)...)));
|
||||
auto response = wait_for_specific_endpoint_message<typename RequestType::ResponseType, PeerEndpoint>();
|
||||
VERIFY(response);
|
||||
return response.release_nonnull();
|
||||
|
@ -99,7 +99,8 @@ public:
|
|||
template<typename RequestType, typename... Args>
|
||||
OwnPtr<typename RequestType::ResponseType> send_sync_but_allow_failure(Args&&... args)
|
||||
{
|
||||
post_message(RequestType(forward<Args>(args)...));
|
||||
if (post_message(RequestType(forward<Args>(args)...)).is_error())
|
||||
return nullptr;
|
||||
return wait_for_specific_endpoint_message<typename RequestType::ResponseType, PeerEndpoint>();
|
||||
}
|
||||
|
||||
|
|
|
@ -44,7 +44,9 @@ void WMClientConnection::set_applet_area_position(Gfx::IntPoint const& position)
|
|||
AppletManager::the().set_position(position);
|
||||
|
||||
WindowServer::ClientConnection::for_each_client([](auto& connection) {
|
||||
connection.post_message(Messages::WindowClient::AppletAreaRectChanged(AppletManager::the().window()->rect()));
|
||||
if (auto result = connection.post_message(Messages::WindowClient::AppletAreaRectChanged(AppletManager::the().window()->rect())); result.is_error()) {
|
||||
dbgln("WMClientConnection::set_applet_area_position: {}", result.error());
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue