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[signals] Removed code related to SIGALRM

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This commit is contained in:
Witold Filipczyk 2024-03-17 17:05:22 +01:00
parent 6684f4bdef
commit e47a482590
3 changed files with 0 additions and 48 deletions
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6
src/main/select.c
View File

@ -1272,10 +1272,8 @@ select_loop(void (*init)(void))
has_timer = get_next_timer_time(&t);
if (!w_max && !has_timer) break;
critical_section = 1;
if (check_signals()) {
critical_section = 0;
continue;
}
#if 0
@ -1309,8 +1307,6 @@ select_loop(void (*init)(void))
* might change errno. */
const int errno_from_select = errno;
critical_section = 0;
uninstall_alarm();
if (errno_from_select != EINTR) {
ERROR(gettext("The call to %s failed: %d (%s)"),
"select()", errno_from_select, (char *) strerror(errno_from_select));
@ -1322,8 +1318,6 @@ select_loop(void (*init)(void))
}
select_errors = 0;
critical_section = 0;
uninstall_alarm();
check_signals();
/*printf("sel: %d\n", n);*/
check_timers(&last_time);

39
src/osdep/signals.c
View File

@ -245,9 +245,6 @@ struct signal_info {
};
static struct signal_info signal_info[NUM_SIGNALS];
volatile int critical_section = 0;
static void check_for_select_race(void);
/* TODO: In order to gain better portability, we should use signal() instead.
* Highest care should be given to careful watching of which signals are
@ -276,7 +273,6 @@ got_signal(int sig)
}
s->mask = 1;
check_for_select_race();
if (can_write(signal_pipe[1])) {
int wr;
@ -324,41 +320,6 @@ install_signal_handler(int sig, void (*fn)(void *), void *data, int critical)
#endif
}
static volatile int pending_alarm = 0;
#ifdef SIGALRM
static void
alarm_handler(void *x)
{
pending_alarm = 0;
check_for_select_race();
}
#endif
static void
check_for_select_race(void)
{
if (critical_section) {
#ifdef SIGALRM
install_signal_handler(SIGALRM, alarm_handler, NULL, 1);
#endif
pending_alarm = 1;
#ifdef HAVE_ALARM
alarm(1);
#endif
}
}
void
uninstall_alarm(void)
{
pending_alarm = 0;
#ifdef HAVE_ALARM
alarm(0);
#endif
}
#ifdef SIGCHLD
static void
sig_chld(void *p)

3
src/osdep/signals.h
View File

@ -11,13 +11,10 @@ struct terminal;
#define NUM_SIGNALS 32
extern volatile int critical_section;
void install_signal_handler(int, void (*)(void *), void *, int);
void set_sigcld(void);
void sig_ctrl_c(struct terminal *term);
void clear_signal_mask_and_handlers(void);
void uninstall_alarm(void);
void handle_basic_signals(struct terminal *term);
void unhandle_terminal_signals(struct terminal *term);
int check_signals(void);