forked from SerenityOS/serenity
-
Notifications
You must be signed in to change notification settings - Fork 0
/
HelperProcess.cpp
205 lines (172 loc) · 8.84 KB
/
HelperProcess.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
/*
* Copyright (c) 2023, Andrew Kaster <[email protected]>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "HelperProcess.h"
#include "Utilities.h"
#include <AK/Enumerate.h>
#include <LibCore/Process.h>
#include <LibWebView/ProcessManager.h>
enum class RegisterWithProcessManager {
No,
Yes,
};
template<typename ClientType, typename SpawnFunction>
static ErrorOr<NonnullRefPtr<ClientType>> launch_server_process_impl(
StringView server_name,
ReadonlySpan<ByteString> candidate_server_paths,
Vector<ByteString> arguments,
RegisterWithProcessManager register_with_process_manager,
Ladybird::EnableCallgrindProfiling enable_callgrind_profiling,
SpawnFunction&& spawn_function)
{
if (enable_callgrind_profiling == Ladybird::EnableCallgrindProfiling::Yes) {
arguments.prepend({
"--tool=callgrind"sv,
"--instr-atstart=no"sv,
""sv, // Placeholder for the process path.
});
}
for (auto [i, path] : enumerate(candidate_server_paths)) {
Core::ProcessSpawnOptions options { .name = server_name, .arguments = arguments };
if (enable_callgrind_profiling == Ladybird::EnableCallgrindProfiling::Yes) {
options.executable = "valgrind"sv;
options.search_for_executable_in_path = true;
arguments[2] = path;
} else {
options.executable = path;
}
auto result = spawn_function(options);
if (!result.is_error()) {
auto process = result.release_value();
if (register_with_process_manager == RegisterWithProcessManager::Yes)
WebView::ProcessManager::the().add_process(WebView::process_type_from_name(server_name), process.process.pid());
if (enable_callgrind_profiling == Ladybird::EnableCallgrindProfiling::Yes) {
dbgln();
dbgln("\033[1;45mLaunched {} process under callgrind!\033[0m", server_name);
dbgln("\033[100mRun `\033[4mcallgrind_control -i on\033[24m` to start instrumentation and `\033[4mcallgrind_control -i off\033[24m` stop it again.\033[0m");
dbgln();
}
return move(process.client);
}
if (i == candidate_server_paths.size() - 1) {
warnln("Could not launch any of {}: {}", candidate_server_paths, result.error());
return result.release_error();
}
}
VERIFY_NOT_REACHED();
}
template<typename ClientType, typename... ClientArguments>
static ErrorOr<NonnullRefPtr<ClientType>> launch_generic_server_process(
StringView server_name,
ReadonlySpan<ByteString> candidate_server_paths,
Vector<ByteString> arguments,
RegisterWithProcessManager register_with_process_manager,
Ladybird::EnableCallgrindProfiling enable_callgrind_profiling,
ClientArguments&&... client_arguments)
{
return launch_server_process_impl<ClientType>(server_name, candidate_server_paths, move(arguments), register_with_process_manager, enable_callgrind_profiling, [&](auto options) {
return Core::IPCProcess::spawn<ClientType>(move(options), forward<ClientArguments>(client_arguments)...);
});
}
template<typename ClientType, typename... ClientArguments>
static ErrorOr<NonnullRefPtr<ClientType>> launch_singleton_server_process(
StringView server_name,
ReadonlySpan<ByteString> candidate_server_paths,
Vector<ByteString> arguments,
RegisterWithProcessManager register_with_process_manager,
ClientArguments&&... client_arguments)
{
return launch_server_process_impl<ClientType>(server_name, candidate_server_paths, move(arguments), register_with_process_manager, Ladybird::EnableCallgrindProfiling::No, [&](auto options) {
return Core::IPCProcess::spawn_singleton<ClientType>(move(options), forward<ClientArguments>(client_arguments)...);
});
}
ErrorOr<NonnullRefPtr<WebView::WebContentClient>> launch_web_content_process(
WebView::ViewImplementation& view,
ReadonlySpan<ByteString> candidate_web_content_paths,
Ladybird::WebContentOptions const& web_content_options,
Optional<IPC::File> request_server_socket)
{
Vector<ByteString> arguments {
"--command-line"sv,
web_content_options.command_line.to_byte_string(),
"--executable-path"sv,
web_content_options.executable_path.to_byte_string(),
};
if (web_content_options.is_layout_test_mode == Ladybird::IsLayoutTestMode::Yes)
arguments.append("--layout-test-mode"sv);
if (web_content_options.use_lagom_networking == Ladybird::UseLagomNetworking::Yes)
arguments.append("--use-lagom-networking"sv);
if (web_content_options.enable_gpu_painting == Ladybird::EnableGPUPainting::Yes)
arguments.append("--use-gpu-painting"sv);
if (web_content_options.wait_for_debugger == Ladybird::WaitForDebugger::Yes)
arguments.append("--wait-for-debugger"sv);
if (web_content_options.log_all_js_exceptions == Ladybird::LogAllJSExceptions::Yes)
arguments.append("--log-all-js-exceptions"sv);
if (web_content_options.enable_idl_tracing == Ladybird::EnableIDLTracing::Yes)
arguments.append("--enable-idl-tracing"sv);
if (web_content_options.expose_internals_object == Ladybird::ExposeInternalsObject::Yes)
arguments.append("--expose-internals-object"sv);
if (auto server = mach_server_name(); server.has_value()) {
arguments.append("--mach-server-name"sv);
arguments.append(server.value());
}
if (request_server_socket.has_value()) {
arguments.append("--request-server-socket"sv);
arguments.append(ByteString::number(request_server_socket->fd()));
}
return launch_generic_server_process<WebView::WebContentClient>("WebContent"sv, candidate_web_content_paths, move(arguments), RegisterWithProcessManager::No, web_content_options.enable_callgrind_profiling, view);
}
ErrorOr<NonnullRefPtr<ImageDecoderClient::Client>> launch_image_decoder_process(ReadonlySpan<ByteString> candidate_image_decoder_paths)
{
return launch_generic_server_process<ImageDecoderClient::Client>("ImageDecoder"sv, candidate_image_decoder_paths, {}, RegisterWithProcessManager::Yes, Ladybird::EnableCallgrindProfiling::No);
}
ErrorOr<NonnullRefPtr<Web::HTML::WebWorkerClient>> launch_web_worker_process(ReadonlySpan<ByteString> candidate_web_worker_paths, NonnullRefPtr<Protocol::RequestClient> request_client)
{
auto socket = TRY(connect_new_request_server_client(move(request_client)));
Vector<ByteString> arguments {
"--request-server-socket"sv,
ByteString::number(socket.fd()),
};
return launch_generic_server_process<Web::HTML::WebWorkerClient>("WebWorker"sv, candidate_web_worker_paths, move(arguments), RegisterWithProcessManager::Yes, Ladybird::EnableCallgrindProfiling::No);
}
ErrorOr<NonnullRefPtr<Protocol::RequestClient>> launch_request_server_process(ReadonlySpan<ByteString> candidate_request_server_paths, StringView serenity_resource_root, Vector<ByteString> const& certificates)
{
Vector<ByteString> arguments;
if (!serenity_resource_root.is_empty()) {
arguments.append("--serenity-resource-root"sv);
arguments.append(serenity_resource_root);
}
for (auto const& certificate : certificates)
arguments.append(ByteString::formatted("--certificate={}", certificate));
if (auto server = mach_server_name(); server.has_value()) {
arguments.append("--mach-server-name"sv);
arguments.append(server.value());
}
return launch_generic_server_process<Protocol::RequestClient>("RequestServer"sv, candidate_request_server_paths, move(arguments), RegisterWithProcessManager::Yes, Ladybird::EnableCallgrindProfiling::No);
}
ErrorOr<NonnullRefPtr<SQL::SQLClient>> launch_sql_server_process(ReadonlySpan<ByteString> candidate_sql_server_paths)
{
Vector<ByteString> arguments;
if (auto server = mach_server_name(); server.has_value()) {
arguments.append("--mach-server-name"sv);
arguments.append(server.value());
}
return launch_singleton_server_process<SQL::SQLClient>("SQLServer"sv, candidate_sql_server_paths, arguments, RegisterWithProcessManager::Yes);
}
ErrorOr<IPC::File> connect_new_request_server_client(Protocol::RequestClient& client)
{
auto new_socket = client.send_sync_but_allow_failure<Messages::RequestServer::ConnectNewClient>();
if (!new_socket)
return Error::from_string_literal("Failed to connect to RequestServer");
auto socket = new_socket->take_client_socket();
// FIXME: IPC::Files transferred over the wire are always set O_CLOEXEC during decoding.
// Perhaps we should add an option to IPC::File to allow the receiver to decide whether to
// make it O_CLOEXEC or not. Or an attribute in the .ipc file?
auto fd = socket.fd();
auto fd_flags = MUST(Core::System::fcntl(fd, F_GETFD));
fd_flags &= ~FD_CLOEXEC;
MUST(Core::System::fcntl(fd, F_SETFD, fd_flags));
return socket;
}