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Basic ^C interrupt implementation.

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For testing, I made cat put itself into a new process group.
This should eventually be done by sh between fork() and exec().
This commit is contained in:
Andreas Kling 2018-11-02 14:06:48 +01:00
parent 621217ffeb
commit 10b666f69a
11 changed files with 94 additions and 38 deletions
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14
Kernel/TTY.cpp
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@ -1,4 +1,5 @@
#include "TTY.h"
#include "Process.h"
TTY::TTY(unsigned major, unsigned minor)
: CharacterDevice(major, minor)
@ -38,3 +39,16 @@ void TTY::emit(byte ch)
{
m_buffer.append(ch);
}
void TTY::interrupt()
{
dbgprintf("%s: Interrupt ^C pressed!\n", ttyName().characters());
if (pgid()) {
dbgprintf("%s: Send SIGINT to everyone in pgrp %d\n", ttyName().characters(), pgid());
InterruptDisabler disabler;
Process::for_each_in_pgrp(pgid(), [this] (auto& process) {
dbgprintf("%s: Send SIGINT to %d\n", ttyName().characters(), process.pid());
process.send_signal(SIGINT, nullptr);
});
}
}