mirror of
https://github.com/LadybirdBrowser/ladybird.git
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a46318d414
This fixes running `jobs` in a child process. Also makes sure that stdout is flushed when writing jobs out.
125 lines
3.5 KiB
C++
125 lines
3.5 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "Job.h"
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#include "AST.h"
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#include "Shell.h"
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#include <inttypes.h>
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#include <stdio.h>
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#include <sys/wait.h>
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namespace Shell {
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bool Job::print_status(PrintStatusMode mode)
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{
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int wstatus;
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auto rc = waitpid(m_pid, &wstatus, WNOHANG);
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auto status = "running";
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if (rc > 0) {
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if (WIFEXITED(wstatus))
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status = "exited";
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if (WIFSTOPPED(wstatus))
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status = "stopped";
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if (WIFSIGNALED(wstatus))
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status = "signaled";
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} else if (rc < 0) {
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// We couldn't waitpid() it, probably because we're not the parent shell.
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// just use the old information.
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if (exited())
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status = "exited";
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else if (m_is_suspended)
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status = "stopped";
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else if (signaled())
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status = "signaled";
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}
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char background_indicator = '-';
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if (is_running_in_background())
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background_indicator = '+';
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const AST::Command& command = *m_command;
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switch (mode) {
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case PrintStatusMode::Basic:
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outln("[{}] {} {} {}", m_job_id, background_indicator, status, command);
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break;
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case PrintStatusMode::OnlyPID:
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outln("[{}] {} {} {} {}", m_job_id, background_indicator, m_pid, status, command);
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break;
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case PrintStatusMode::ListAll:
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outln("[{}] {} {} {} {} {}", m_job_id, background_indicator, m_pid, m_pgid, status, command);
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break;
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}
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fflush(stdout);
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return true;
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}
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Job::Job(pid_t pid, unsigned pgid, String cmd, u64 job_id, AST::Command&& command)
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: m_pgid(pgid)
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, m_pid(pid)
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, m_job_id(job_id)
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, m_cmd(move(cmd))
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{
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m_command = make<AST::Command>(move(command));
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set_running_in_background(false);
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m_command_timer.start();
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}
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void Job::set_has_exit(int exit_code)
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{
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if (m_exited)
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return;
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m_exit_code = exit_code;
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m_exited = true;
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if (on_exit)
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on_exit(*this);
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}
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void Job::set_signalled(int sig)
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{
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if (m_exited)
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return;
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m_exited = true;
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m_exit_code = 126;
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m_term_sig = sig;
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if (on_exit)
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on_exit(*this);
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}
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void Job::unblock() const
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{
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if (!m_exited && on_exit)
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on_exit(*this);
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}
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}
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