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Add sigset functions.

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This commit is contained in:
Jonas 'Sortie' Termansen 2013-01-08 15:10:24 +01:00
parent e88d492efd
commit 6dbff1991b
7 changed files with 186 additions and 0 deletions
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5
libc/Makefile
View file

@ -92,6 +92,11 @@ op-new.o \
rewind.o \
setbuf.o \
setvbuf.o \
sigaddset.o \
sigdelset.o \
sigfillset.o \
sigemptyset.o \
sigismember.o \
sort.o \
sprint.o \
sscanf.o \

39
libc/sigaddset.cpp Normal file
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@ -0,0 +1,39 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
sigaddset.cpp
Add a signal to a signal set.
*******************************************************************************/
#include <errno.h>
#include <signal.h>
#include <stdint.h>
extern "C" int sigaddset(sigset_t* set, int signum)
{
int max_signals = sizeof(set->__val) * 8;
if ( max_signals <= signum )
return errno = EINVAL, -1;
size_t which_byte = signum / 8;
size_t which_bit = signum % 8;
uint8_t* bytes = (uint8_t*) set->__val;
bytes[which_byte] |= 1 << which_bit;
return 0;
}

39
libc/sigdelset.cpp Normal file
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@ -0,0 +1,39 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
sigdelset.cpp
Remove a signal from a signal set.
*******************************************************************************/
#include <errno.h>
#include <signal.h>
#include <stdint.h>
extern "C" int sigdelset(sigset_t* set, int signum)
{
int max_signals = sizeof(set->__val) * 8;
if ( max_signals <= signum )
return errno = EINVAL, -1;
size_t which_byte = signum / 8;
size_t which_bit = signum % 8;
uint8_t* bytes = (uint8_t*) set->__val;
bytes[which_byte] &= ~(1 << which_bit);
return 0;
}

32
libc/sigemptyset.cpp Normal file
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@ -0,0 +1,32 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
sigemptyset.cpp
Removes all the signals from a signal set.
*******************************************************************************/
#include <signal.h>
#include <string.h>
extern "C" int sigemptyset(sigset_t* set)
{
memset(set, 0, sizeof(*set));
return 0;
}

32
libc/sigfillset.cpp Normal file
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@ -0,0 +1,32 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
sigfillset.cpp
Add all signals to a signal set.
*******************************************************************************/
#include <signal.h>
#include <string.h>
extern "C" int sigfillset(sigset_t* set)
{
memset(set, 255, sizeof(*set));
return 0;
}

38
libc/sigismember.cpp Normal file
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@ -0,0 +1,38 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
sigismember.cpp
Test signal membership in a signal set.
*******************************************************************************/
#include <errno.h>
#include <signal.h>
#include <stdint.h>
extern "C" int sigismember(const sigset_t* set, int signum)
{
int max_signals = sizeof(set->__val) * 8;
if ( max_signals <= signum )
return errno = EINVAL, -1;
size_t which_byte = signum / 8;
size_t which_bit = signum % 8;
const uint8_t* bytes = (const uint8_t*) set->__val;
return bytes[which_byte] & (1 << which_bit) ? 1 : 0;
}

1
libc/signal.cpp
View file

@ -24,6 +24,7 @@
#include <sys/types.h>
#include <sys/syscall.h>
#include <signal.h>
const int MAX_SIGNALS = 128;