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LibCore/Process: Make all spawn overloads return ErrorOr<Process>

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stasoid 2024-11-17 20:11:13 +05:00 committed by Andrew Kaster
parent ddd15e96b6
commit 4a731b3858
Notes: github-actions[bot] 2024-11-19 22:28:35 +00:00 
Author: https://github.com/stasoid
Commit: https://github.com/LadybirdBrowser/ladybird/commit/4a731b3858a
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2377
Reviewed-by: https://github.com/ADKaster ✅
6 changed files with 22 additions and 27 deletions
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16
Libraries/LibCore/Process.cpp
View file

@ -121,7 +121,7 @@ ErrorOr<Process> Process::spawn(ProcessSpawnOptions const& options)
return Process { pid };
}
ErrorOr<pid_t> Process::spawn(StringView path, ReadonlySpan<ByteString> arguments, ByteString working_directory, KeepAsChild keep_as_child)
ErrorOr<Process> Process::spawn(StringView path, ReadonlySpan<ByteString> arguments, ByteString working_directory, KeepAsChild keep_as_child)
{
auto process = TRY(spawn({
.executable = path,
@ -131,14 +131,11 @@ ErrorOr<pid_t> Process::spawn(StringView path, ReadonlySpan<ByteString> argument
if (keep_as_child == KeepAsChild::No)
TRY(process.disown());
else {
// FIXME: This won't be needed if return value is changed to Process.
process.m_should_disown = false;
}
return process.pid();
return process;
}
ErrorOr<pid_t> Process::spawn(StringView path, ReadonlySpan<StringView> arguments, ByteString working_directory, KeepAsChild keep_as_child)
ErrorOr<Process> Process::spawn(StringView path, ReadonlySpan<StringView> arguments, ByteString working_directory, KeepAsChild keep_as_child)
{
Vector<ByteString> backing_strings;
backing_strings.ensure_capacity(arguments.size());
@ -153,9 +150,8 @@ ErrorOr<pid_t> Process::spawn(StringView path, ReadonlySpan<StringView> argument
if (keep_as_child == KeepAsChild::No)
TRY(process.disown());
else
process.m_should_disown = false;
return process.pid();
return process;
}
ErrorOr<String> Process::get_name()

7
Libraries/LibCore/Process.h
View file

@ -74,9 +74,8 @@ public:
static ErrorOr<Process> spawn(ProcessSpawnOptions const& options);
static Process current();
// FIXME: Make the following 2 functions return Process instance or delete them.
static ErrorOr<pid_t> spawn(StringView path, ReadonlySpan<ByteString> arguments, ByteString working_directory = {}, KeepAsChild keep_as_child = KeepAsChild::No);
static ErrorOr<pid_t> spawn(StringView path, ReadonlySpan<StringView> arguments, ByteString working_directory = {}, KeepAsChild keep_as_child = KeepAsChild::No);
static ErrorOr<Process> spawn(StringView path, ReadonlySpan<ByteString> arguments, ByteString working_directory = {}, KeepAsChild keep_as_child = KeepAsChild::No);
static ErrorOr<Process> spawn(StringView path, ReadonlySpan<StringView> arguments, ByteString working_directory = {}, KeepAsChild keep_as_child = KeepAsChild::No);
static ErrorOr<String> get_name();
enum class SetThreadName {
@ -96,7 +95,7 @@ public:
ErrorOr<bool> wait_for_termination();
private:
Process(pid_t pid)
Process(pid_t pid = -1)
: m_pid(pid)
, m_should_disown(true)
{

4
Services/WebDriver/Client.h
View file

@ -19,8 +19,8 @@
namespace WebDriver {
struct LaunchBrowserCallbacks {
Function<ErrorOr<pid_t>(ByteString const&)> launch_browser;
Function<ErrorOr<pid_t>(ByteString const&)> launch_headless_browser;
Function<ErrorOr<Core::Process>(ByteString const&)> launch_browser;
Function<ErrorOr<Core::Process>(ByteString const&)> launch_headless_browser;
};
class Client final : public Web::WebDriver::Client {

11
Services/WebDriver/Session.cpp
View file

@ -43,10 +43,9 @@ Session::~Session()
// from active sessions
// 3. Perform any implementation-specific cleanup steps.
if (m_browser_pid.has_value()) {
MUST(Core::System::kill(*m_browser_pid, SIGTERM));
m_browser_pid = {};
}
if (m_browser_process.has_value())
MUST(Core::System::kill(m_browser_process->pid(), SIGTERM));
if (m_web_content_socket_path.has_value()) {
MUST(Core::System::unlink(*m_web_content_socket_path));
m_web_content_socket_path = {};
@ -172,9 +171,9 @@ ErrorOr<void> Session::start(LaunchBrowserCallbacks const& callbacks)
m_web_content_server = TRY(create_server(promise));
if (m_options.headless)
m_browser_pid = TRY(callbacks.launch_headless_browser(*m_web_content_socket_path));
m_browser_process = TRY(callbacks.launch_headless_browser(*m_web_content_socket_path));
else
m_browser_pid = TRY(callbacks.launch_browser(*m_web_content_socket_path));
m_browser_process = TRY(callbacks.launch_browser(*m_web_content_socket_path));
// FIXME: Allow this to be more asynchronous. For now, this at least allows us to propagate
// errors received while accepting the Browser and WebContent sockets.

3
Services/WebDriver/Session.h
View file

@ -15,6 +15,7 @@
#include <AK/ScopeGuard.h>
#include <AK/String.h>
#include <LibCore/EventLoop.h>
#include <LibCore/Process.h>
#include <LibCore/Promise.h>
#include <LibWeb/WebDriver/Capabilities.h>
#include <LibWeb/WebDriver/Error.h>
@ -95,7 +96,7 @@ private:
String m_current_window_handle;
Optional<ByteString> m_web_content_socket_path;
Optional<pid_t> m_browser_pid;
Optional<Core::Process> m_browser_process;
RefPtr<Core::LocalServer> m_web_content_server;

8
Services/WebDriver/main.cpp
View file

@ -19,11 +19,11 @@
static Vector<ByteString> certificates;
static ErrorOr<pid_t> launch_process(StringView application, ReadonlySpan<ByteString> arguments)
static ErrorOr<Core::Process> launch_process(StringView application, ReadonlySpan<ByteString> arguments)
{
auto paths = TRY(WebView::get_paths_for_helper_process(application));
ErrorOr<pid_t> result = -1;
ErrorOr<Core::Process> result = Error::from_string_literal("All paths failed to launch");
for (auto const& path : paths) {
auto path_view = path.view();
result = Core::Process::spawn(path_view, arguments, {}, Core::Process::KeepAsChild::Yes);
@ -56,13 +56,13 @@ static Vector<ByteString> create_arguments(ByteString const& socket_path, bool f
return arguments;
}
static ErrorOr<pid_t> launch_browser(ByteString const& socket_path, bool force_cpu_painting)
static ErrorOr<Core::Process> launch_browser(ByteString const& socket_path, bool force_cpu_painting)
{
auto arguments = create_arguments(socket_path, force_cpu_painting);
return launch_process("Ladybird"sv, arguments.span());
}
static ErrorOr<pid_t> launch_headless_browser(ByteString const& socket_path, bool force_cpu_painting)
static ErrorOr<Core::Process> launch_headless_browser(ByteString const& socket_path, bool force_cpu_painting)
{
auto arguments = create_arguments(socket_path, force_cpu_painting);
return launch_process("headless-browser"sv, arguments.span());