1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
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);
}
}
|
