Shell: Move to Userland/Shell/

2025-07-25 04:27:43 +00:00 · 2021-01-12 11:53:14 +01:00 · 2021-01-12 11:53:14 +01:00 · c4e2fd8123
commit c4e2fd8123
parent 07c7e35372
35 changed files with 11 additions and 9 deletions
--- a/Userland/Shell/Job.cpp
+++ b/Userland/Shell/Job.cpp
@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "Job.h"
+#include "AST.h"
+#include "Shell.h"
+#include <inttypes.h>
+#include <stdio.h>
+#include <sys/wait.h>
+
+namespace Shell {
+
+bool Job::print_status(PrintStatusMode mode)
+{
+    int wstatus;
+    auto rc = waitpid(m_pid, &wstatus, WNOHANG);
+    auto status = "running";
+
+    if (rc > 0) {
+        if (WIFEXITED(wstatus))
+            status = "exited";
+
+        if (WIFSTOPPED(wstatus))
+            status = "stopped";
+
+        if (WIFSIGNALED(wstatus))
+            status = "signaled";
+    } else if (rc < 0) {
+        // We couldn't waitpid() it, probably because we're not the parent shell.
+        // just use the old information.
+        if (exited())
+            status = "exited";
+        else if (m_is_suspended)
+            status = "stopped";
+        else if (signaled())
+            status = "signaled";
+    }
+
+    char background_indicator = '-';
+
+    if (is_running_in_background())
+        background_indicator = '+';
+
+    const AST::Command& command = *m_command;
+
+    switch (mode) {
+    case PrintStatusMode::Basic:
+        outln("[{}] {} {} {}", m_job_id, background_indicator, status, command);
+        break;
+    case PrintStatusMode::OnlyPID:
+        outln("[{}] {} {} {} {}", m_job_id, background_indicator, m_pid, status, command);
+        break;
+    case PrintStatusMode::ListAll:
+        outln("[{}] {} {} {} {} {}", m_job_id, background_indicator, m_pid, m_pgid, status, command);
+        break;
+    }
+    fflush(stdout);
+
+    return true;
+}
+
+Job::Job(pid_t pid, unsigned pgid, String cmd, u64 job_id, AST::Command&& command)
+    : m_pgid(pgid)
+    , m_pid(pid)
+    , m_job_id(job_id)
+    , m_cmd(move(cmd))
+{
+    m_command = make<AST::Command>(move(command));
+
+    set_running_in_background(false);
+    m_command_timer.start();
+}
+
+void Job::set_has_exit(int exit_code)
+{
+    if (m_exited)
+        return;
+    m_exit_code = exit_code;
+    m_exited = true;
+    if (on_exit)
+        on_exit(*this);
+}
+
+void Job::set_signalled(int sig)
+{
+    if (m_exited)
+        return;
+    m_exited = true;
+    m_exit_code = 126;
+    m_term_sig = sig;
+    if (on_exit)
+        on_exit(*this);
+}
+
+void Job::unblock() const
+{
+    if (!m_exited && on_exit)
+        on_exit(*this);
+}
+
+}