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Shell: Put children in their own process groups and fix job control

This commit fixes job control by putting children in their own process
group, and proxying TTY signals to active jobs.
This also cleans up the code around builtin_disown a bit to use
the newer job interfaces.
This commit is contained in:
AnotherTest 2020-07-12 18:51:47 +04:30 committed by Andreas Kling
parent 3a7a689b87
commit 151e4d41ed
5 changed files with 49 additions and 35 deletions

View file

@ -372,44 +372,33 @@ int Shell::builtin_disown(int argc, const char** argv)
fprintf(stderr, "disown: Invalid job id %s\n", job_id);
}
if (job_ids.is_empty()) {
u64 id = 0;
for (auto& job : jobs)
id = max(id, job.value->job_id());
job_ids.append(id);
}
if (job_ids.is_empty())
job_ids.append(find_last_job_id());
Vector<size_t> keys_of_jobs_to_disown;
Vector<const Job*> jobs_to_disown;
for (auto id : job_ids) {
bool found = false;
for (auto& entry : jobs) {
if (entry.value->job_id() == id) {
keys_of_jobs_to_disown.append(entry.key);
found = true;
break;
}
}
if (!found) {
auto job = find_job(id);
if (!job)
fprintf(stderr, "disown: job with id %zu not found\n", id);
}
else
jobs_to_disown.append(job);
}
if (keys_of_jobs_to_disown.is_empty()) {
if (str_job_ids.is_empty()) {
if (jobs_to_disown.is_empty()) {
if (str_job_ids.is_empty())
fprintf(stderr, "disown: no current job\n");
}
// An error message has already been printed about the nonexistence of each listed job.
return 1;
}
for (auto job_index : keys_of_jobs_to_disown) {
auto job = jobs.get(job_index).value();
for (auto job : jobs_to_disown) {
job->deactivate();
if (!job->is_running_in_background())
fprintf(stderr, "disown warning: job %" PRIu64 " is currently not running, 'kill -%d %d' to make it continue\n", job->job_id(), SIGCONT, job->pid());
jobs.remove(job_index);
jobs.remove(job->pid());
}
return 0;