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LibCore: Implement SIGTERM-based kill() on Windows

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There is no direct Win32 API equivalent, but calling WM_CLOSE on
the top-level windows allows for a graceful shutdown where resources
are able to clean themselves up properly
This commit is contained in:
ayeteadoe 2025-08-23 20:58:43 -07:00 committed by Jelle Raaijmakers
parent bbb9159883
commit 69e92f69a7
2 changed files with 20 additions and 1 deletions
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2
Libraries/LibCore/System.h
View File

@ -128,8 +128,8 @@ ErrorOr<void> access(StringView pathname, int mode, int flags = 0);
ErrorOr<ByteString> readlink(StringView pathname);
ErrorOr<int> poll(Span<struct pollfd>, int timeout);
#if !defined(AK_OS_WINDOWS)
ErrorOr<void> kill(pid_t, int signal);
#if !defined(AK_OS_WINDOWS)
ErrorOr<void> chown(StringView pathname, uid_t uid, gid_t gid);
ErrorOr<pid_t> posix_spawn(StringView path, posix_spawn_file_actions_t const* file_actions, posix_spawnattr_t const* attr, char* const arguments[], char* const envp[]);
ErrorOr<pid_t> posix_spawnp(StringView path, posix_spawn_file_actions_t* const file_actions, posix_spawnattr_t* const attr, char* const arguments[], char* const envp[]);

19
Libraries/LibCore/SystemWindows.cpp
View File

@ -384,4 +384,23 @@ ErrorOr<void> connect(int socket, struct sockaddr const* address, socklen_t addr
return {};
}
ErrorOr<void> kill(pid_t pid, int signal)
{
if (signal == SIGTERM) {
if (!EnumWindows([](HWND hwnd, LPARAM l_param) -> BOOL {
DWORD window_pid = 0;
GetWindowThreadProcessId(hwnd, &window_pid);
if (window_pid == static_cast<DWORD>(l_param)) {
PostMessage(hwnd, WM_CLOSE, 0, 0);
}
return TRUE;
},
pid))
return Error::from_windows_error();
} else {
return Error::from_string_literal("Unsupported signal value");
}
return {};
}
}