diff --git a/config.def.h b/config.def.h index 1c0b587..ed056a4 100644 --- a/config.def.h +++ b/config.def.h @@ -18,6 +18,11 @@ static const char *colors[][3] = { [SchemeSel] = { col_gray4, col_cyan, col_cyan }, }; +static const char *const autostart[] = { + "st", NULL, + NULL /* terminate */ +}; + /* tagging */ static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" }; diff --git a/dwm.c b/dwm.c index 9fd0286..1facd56 100644 --- a/dwm.c +++ b/dwm.c @@ -234,6 +234,7 @@ static int xerror(Display *dpy, XErrorEvent *ee); static int xerrordummy(Display *dpy, XErrorEvent *ee); static int xerrorstart(Display *dpy, XErrorEvent *ee); static void zoom(const Arg *arg); +static void autostart_exec(void); /* variables */ static const char broken[] = "broken"; @@ -275,6 +276,34 @@ static Window root, wmcheckwin; /* compile-time check if all tags fit into an unsigned int bit array. */ struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; }; +/* dwm will keep pid's of processes from autostart array and kill them at quit */ +static pid_t *autostart_pids; +static size_t autostart_len; + +/* execute command from autostart array */ +static void +autostart_exec() { + const char *const *p; + size_t i = 0; + + /* count entries */ + for (p = autostart; *p; autostart_len++, p++) + while (*++p); + + autostart_pids = malloc(autostart_len * sizeof(pid_t)); + for (p = autostart; *p; i++, p++) { + if ((autostart_pids[i] = fork()) == 0) { + setsid(); + execvp(*p, (char *const *)p); + fprintf(stderr, "dwm: execvp %s\n", *p); + perror(" failed"); + _exit(EXIT_FAILURE); + } + /* skip arguments */ + while (*++p); + } +} + /* function implementations */ void applyrules(Client *c) @@ -1249,6 +1278,16 @@ propertynotify(XEvent *e) void quit(const Arg *arg) { + size_t i; + + /* kill child processes */ + for (i = 0; i < autostart_len; i++) { + if (0 < autostart_pids[i]) { + kill(autostart_pids[i], SIGTERM); + waitpid(autostart_pids[i], NULL, 0); + } + } + running = 0; } @@ -1632,9 +1671,25 @@ showhide(Client *c) void sigchld(int unused) { + pid_t pid; + if (signal(SIGCHLD, sigchld) == SIG_ERR) die("can't install SIGCHLD handler:"); - while (0 < waitpid(-1, NULL, WNOHANG)); + while (0 < (pid = waitpid(-1, NULL, WNOHANG))) { + pid_t *p, *lim; + + if (!(p = autostart_pids)) + continue; + lim = &p[autostart_len]; + + for (; p < lim; p++) { + if (*p == pid) { + *p = -1; + break; + } + } + + } } void @@ -2139,6 +2194,7 @@ main(int argc, char *argv[]) if (!(dpy = XOpenDisplay(NULL))) die("dwm: cannot open display"); checkotherwm(); + autostart_exec(); setup(); #ifdef __OpenBSD__ if (pledge("stdio rpath proc exec", NULL) == -1)