RGBCube/serenity
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Terminal: Port to LibMain :^)

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This simplifies a bunch of error handling and makes the main function
quite a bit shorter.

It will become shorter yet, as we get better at propagating errors. :^)
This commit is contained in:
Andreas Kling 2021-11-22 16:12:40 +01:00
parent 3d34216b9a
commit e388782f60
2 changed files with 18 additions and 53 deletions
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2
Userland/Applications/Terminal/CMakeLists.txt
View file

@ -12,4 +12,4 @@ set(SOURCES
)
serenity_app(Terminal ICON app-terminal)
target_link_libraries(Terminal LibGUI LibVT)
target_link_libraries(Terminal LibGUI LibVT LibMain)

69
Userland/Applications/Terminal/main.cpp
View file

@ -32,6 +32,8 @@
#include <LibGUI/Widget.h>
#include <LibGUI/Window.h>
#include <LibGfx/Palette.h>
#include <LibMain/Main.h>
#include <LibSystem/Wrappers.h>
#include <LibVT/TerminalWidget.h>
#include <assert.h>
#include <errno.h>
@ -248,29 +250,20 @@ static RefPtr<GUI::Window> create_find_window(VT::TerminalWidget& terminal)
return window;
}
int main(int argc, char** argv)
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
if (pledge("stdio tty rpath cpath wpath recvfd sendfd proc exec unix sigaction", nullptr) < 0) {
perror("pledge");
return 1;
}
TRY(System::pledge("stdio tty rpath cpath wpath recvfd sendfd proc exec unix sigaction", nullptr));
struct sigaction act;
memset(&act, 0, sizeof(act));
act.sa_flags = SA_NOCLDWAIT;
act.sa_handler = SIG_IGN;
int rc = sigaction(SIGCHLD, &act, nullptr);
if (rc < 0) {
perror("sigaction");
return 1;
}
auto app = GUI::Application::construct(argc, argv);
TRY(System::sigaction(SIGCHLD, &act, nullptr));
if (pledge("stdio tty rpath cpath wpath recvfd sendfd proc exec unix", nullptr) < 0) {
perror("pledge");
return 1;
}
auto app = GUI::Application::construct(arguments.argc, arguments.argv);
TRY(System::pledge("stdio tty rpath cpath wpath recvfd sendfd proc exec unix", nullptr));
Config::pledge_domains("Terminal");
@ -281,7 +274,7 @@ int main(int argc, char** argv)
args_parser.add_option(command_to_execute, "Execute this command inside the terminal", nullptr, 'e', "command");
args_parser.add_option(keep_open, "Keep the terminal open after the command has finished executing", nullptr, 'k');
args_parser.parse(argc, argv);
args_parser.parse(arguments.argc, arguments.argv);
if (keep_open && !command_to_execute) {
warnln("Option -k can only be used in combination with -e.");
@ -429,42 +422,14 @@ int main(int argc, char** argv)
settings_window->close();
};
if (unveil("/res", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/bin", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/bin/Terminal", "x") < 0) {
perror("unveil");
return 1;
}
if (unveil("/bin/utmpupdate", "x") < 0) {
perror("unveil");
return 1;
}
if (unveil("/etc/FileIconProvider.ini", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/tmp/portal/launch", "rw") < 0) {
perror("unveil");
return 1;
}
if (unveil("/tmp/portal/config", "rw") < 0) {
perror("unveil");
return 1;
}
unveil(nullptr, nullptr);
TRY(System::unveil("/res", "r"));
TRY(System::unveil("/bin", "r"));
TRY(System::unveil("/bin/Terminal", "x"));
TRY(System::unveil("/bin/utmpupdate", "x"));
TRY(System::unveil("/etc/FileIconProvider.ini", "r"));
TRY(System::unveil("/tmp/portal/launch", "rw"));
TRY(System::unveil("/tmp/portal/config", "rw"));
TRY(System::unveil(nullptr, nullptr));
window->show();
int result = app->exec();