FreeNOS
lib
libposix
signal
kill.cpp
Go to the documentation of this file.
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/*
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* Copyright (C) 2020 Niek Linnenbank
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <FreeNOS/User.h>
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#include "
stdlib.h
"
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#include "
errno.h
"
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#include "
signal.h
"
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extern
C
int
kill
(
pid_t
pid,
int
sig)
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{
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switch
(sig)
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{
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case
SIGTERM
:
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case
SIGKILL
:
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{
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const
API::Result
result =
ProcessCtl
(pid,
KillPID
,
EXIT_FAILURE
);
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if
(result ==
API::Success
)
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{
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return
0;
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}
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else
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{
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errno
=
EIO
;
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return
-1;
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}
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}
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default
:
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break
;
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}
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// Not supported
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errno
=
ENOTSUP
;
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return
-1;
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}
EXIT_FAILURE
#define EXIT_FAILURE
Unsuccessful termination.
Definition:
stdlib.h:36
API::Result
Result
Enumeration of generic kernel API result codes.
Definition:
API.h:68
errno
C int errno
The lvalue errno is used by many functions to return error values.
ProcessCtl
API::Result ProcessCtl(const ProcessID proc, const ProcessOperation op, const Address addr=0, const Address output=0)
Prototype for user applications.
Definition:
ProcessCtl.h:93
C
#define C
Used to define external C functions.
Definition:
Macros.h:134
ENOTSUP
#define ENOTSUP
Not supported (may be the same value as [EOPNOTSUPP]).
Definition:
errno.h:226
SIGTERM
#define SIGTERM
Termination request.
Definition:
signal.h:54
signal.h
EIO
#define EIO
I/O error.
Definition:
errno.h:130
pid_t
ProcessID pid_t
Used for process IDs and process group IDs.
Definition:
types.h:32
API::Success
@ Success
Definition:
API.h:70
kill
C int kill(pid_t pid, int sig)
Send a signal to a process or a group of processes.
Definition:
kill.cpp:23
stdlib.h
KillPID
@ KillPID
Definition:
ProcessCtl.h:40
SIGKILL
#define SIGKILL
Killed.
Definition:
signal.h:77
errno.h
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