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Move signal code into proc.c.

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This commit is contained in:
nicm
2017-07-12 09:24:17 +00:00
parent ed3cfaafb2
commit 0453ad0146
9 changed files with 96 additions and 151 deletions
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89
proc.c
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@@ -24,6 +24,7 @@
#include <errno.h>
#include <event.h>
#include <imsg.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
@@ -35,6 +36,14 @@ struct tmuxproc {
int exit;
void (*signalcb)(int);
struct event ev_sighup;
struct event ev_sigchld;
struct event ev_sigcont;
struct event ev_sigterm;
struct event ev_sigusr1;
struct event ev_sigusr2;
struct event ev_sigwinch;
};
struct tmuxpeer {
@@ -162,29 +171,11 @@ proc_send(struct tmuxpeer *peer, enum msgtype type, int fd, const void *buf,
}
struct tmuxproc *
proc_start(const char *name, struct event_base *base, int forkflag,
void (*signalcb)(int))
proc_start(const char *name)
{
struct tmuxproc *tp;
struct utsname u;
if (forkflag) {
switch (fork()) {
case -1:
fatal("fork failed");
case 0:
break;
default:
return (NULL);
}
if (daemon(1, 0) != 0)
fatal("daemon failed");
clear_signals(0);
if (event_reinit(base) != 0)
fatalx("event_reinit failed");
}
log_open(name);
setproctitle("%s (%s)", name, socket_path);
@@ -199,9 +190,6 @@ proc_start(const char *name, struct event_base *base, int forkflag,
tp = xcalloc(1, sizeof *tp);
tp->name = xstrdup(name);
tp->signalcb = signalcb;
set_signals(proc_signal_cb, tp);
return (tp);
}
@@ -221,6 +209,63 @@ proc_exit(struct tmuxproc *tp)
tp->exit = 1;
}
void
proc_set_signals(struct tmuxproc *tp, void (*signalcb)(int))
{
struct sigaction sa;
tp->signalcb = signalcb;
memset(&sa, 0, sizeof sa);
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sa.sa_handler = SIG_IGN;
sigaction(SIGINT, &sa, NULL);
sigaction(SIGPIPE, &sa, NULL);
sigaction(SIGUSR2, &sa, NULL);
sigaction(SIGTSTP, &sa, NULL);
signal_set(&tp->ev_sighup, SIGHUP, proc_signal_cb, tp);
signal_add(&tp->ev_sighup, NULL);
signal_set(&tp->ev_sigchld, SIGCHLD, proc_signal_cb, tp);
signal_add(&tp->ev_sigchld, NULL);
signal_set(&tp->ev_sigcont, SIGCONT, proc_signal_cb, tp);
signal_add(&tp->ev_sigcont, NULL);
signal_set(&tp->ev_sigterm, SIGTERM, proc_signal_cb, tp);
signal_add(&tp->ev_sigterm, NULL);
signal_set(&tp->ev_sigusr1, SIGUSR1, proc_signal_cb, tp);
signal_add(&tp->ev_sigusr1, NULL);
signal_set(&tp->ev_sigusr2, SIGUSR2, proc_signal_cb, tp);
signal_add(&tp->ev_sigusr2, NULL);
signal_set(&tp->ev_sigwinch, SIGWINCH, proc_signal_cb, tp);
signal_add(&tp->ev_sigwinch, NULL);
}
void
proc_clear_signals(struct tmuxproc *tp)
{
struct sigaction sa;
memset(&sa, 0, sizeof sa);
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sa.sa_handler = SIG_DFL;
sigaction(SIGINT, &sa, NULL);
sigaction(SIGPIPE, &sa, NULL);
sigaction(SIGUSR2, &sa, NULL);
sigaction(SIGTSTP, &sa, NULL);
event_del(&tp->ev_sighup);
event_del(&tp->ev_sigchld);
event_del(&tp->ev_sigcont);
event_del(&tp->ev_sigterm);
event_del(&tp->ev_sigusr1);
event_del(&tp->ev_sigusr2);
event_del(&tp->ev_sigwinch);
}
struct tmuxpeer *
proc_add_peer(struct tmuxproc *tp, int fd,
void (*dispatchcb)(struct imsg *, void *), void *arg)