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/* direvent - directory content watcher daemon
Copyright (C) 2012-2014 Sergey Poznyakoff
Direvent is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
Direvent 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 General Public License for more details.
You should have received a copy of the GNU General Public License along
with direvent. If not, see <http://www.gnu.org/licenses/>. */
#include "direvent.h"
int
sigv_set_action(int sigc, int *sigv, struct sigaction *sa)
{
int i;
for (i = 0; i < sigc; i++) {
if (sigaction(sigv[i], &sa[i], NULL))
return i+1;
}
return 0;
}
int
sigv_restore_tab(int sigc, struct sigtab *sigtab, struct sigaction *sa)
{
int i;
for (i = 0; i < sigc; i++) {
if (sigaction(sigtab[i].signo, &sa[i], NULL))
return i+1;
}
return 0;
}
int
sigv_set_all(void (*handler)(int), int sigc, int *sigv,
struct sigaction *retsa)
{
int i;
struct sigaction sa;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
for (i = 0; i < sigc; i++) {
sa.sa_handler = handler;
if (sigaction(sigv[i], &sa, retsa ? &retsa[i] : NULL)) {
if (retsa) {
int ec = errno;
sigv_set_action(i, sigv, retsa);
errno = ec;
}
return -1;
}
}
return 0;
}
int
sigv_set_tab(int sigc, struct sigtab *sigtab, struct sigaction *retsa)
{
int i;
struct sigaction sa;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
for (i = 0; i < sigc; i++) {
sa.sa_handler = sigtab[i].sigfun;
if (sigaction(sigtab[i].signo, &sa,
retsa ? &retsa[i] : NULL)) {
if (retsa) {
int ec = errno;
sigv_restore_tab(i, sigtab, retsa);
errno = ec;
}
return -1;
}
}
return 0;
}
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