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From 787f7252d63945996f009828aff3c44afd0f7781 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leonardo=20Hern=C3=A1ndez=20Hern=C3=A1ndez?=
<leohdz172@proton.me>
Date: Sat, 8 Jul 2023 17:11:36 -0600
Subject: [PATCH] port autostart patch from dwm
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
https://dwm.suckless.org/patches/cool_autostart/
Signed-off-by: Leonardo Hernández Hernández <leohdz172@proton.me>
---
config.def.h | 7 +++++++
dwl.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++-----
2 files changed, 61 insertions(+), 5 deletions(-)
diff --git a/config.def.h b/config.def.h
index 22d2171..8dc6502 100644
--- a/config.def.h
+++ b/config.def.h
@@ -20,6 +20,13 @@ static const float fullscreen_bg[] = {0.1f, 0.1f, 0.1f, 1.0f}; /* You ca
/* logging */
static int log_level = WLR_ERROR;
+/* Autostart */
+static const char *const autostart[] = {
+ "wbg", "/path/to/your/image", NULL,
+ NULL /* terminate */
+};
+
+
/* NOTE: ALWAYS keep a rule declared even if you don't use rules (e.g leave at least one example) */
static const Rule rules[] = {
/* app_id title tags mask isfloating monitor */
diff --git a/dwl.c b/dwl.c
index 5bf995e..e8b8727 100644
--- a/dwl.c
+++ b/dwl.c
@@ -249,6 +249,7 @@ static void arrange(Monitor *m);
static void arrangelayer(Monitor *m, struct wl_list *list,
struct wlr_box *usable_area, int exclusive);
static void arrangelayers(Monitor *m);
+static void autostartexec(void);
static void axisnotify(struct wl_listener *listener, void *data);
static void buttonpress(struct wl_listener *listener, void *data);
static void chvt(const Arg *arg);
@@ -432,6 +433,9 @@ static xcb_atom_t netatom[NetLast];
/* attempt to encapsulate suck into one file */
#include "client.h"
+static pid_t *autostart_pids;
+static size_t autostart_len;
+
/* function implementations */
void
applybounds(Client *c, struct wlr_box *bbox)
@@ -580,6 +584,27 @@ arrangelayers(Monitor *m)
}
}
+void
+autostartexec(void) {
+ const char *const *p;
+ size_t i = 0;
+
+ /* count entries */
+ for (p = autostart; *p; autostart_len++, p++)
+ while (*++p);
+
+ autostart_pids = calloc(autostart_len, sizeof(pid_t));
+ for (p = autostart; *p; i++, p++) {
+ if ((autostart_pids[i] = fork()) == 0) {
+ setsid();
+ execvp(*p, (char *const *)p);
+ die("dwl: execvp %s:", *p);
+ }
+ /* skip arguments */
+ while (*++p);
+ }
+}
+
void
axisnotify(struct wl_listener *listener, void *data)
{
@@ -676,11 +701,21 @@ checkidleinhibitor(struct wlr_surface *exclude)
void
cleanup(void)
{
+ size_t i;
#ifdef XWAYLAND
wlr_xwayland_destroy(xwayland);
xwayland = NULL;
#endif
wl_display_destroy_clients(dpy);
+
+ /* 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);
+ }
+ }
+
if (child_pid > 0) {
kill(-child_pid, SIGTERM);
waitpid(child_pid, NULL, 0);
@@ -1497,18 +1532,31 @@ void
handlesig(int signo)
{
if (signo == SIGCHLD) {
-#ifdef XWAYLAND
siginfo_t in;
/* wlroots expects to reap the XWayland process itself, so we
* use WNOWAIT to keep the child waitable until we know it's not
* XWayland.
*/
while (!waitid(P_ALL, 0, &in, WEXITED|WNOHANG|WNOWAIT) && in.si_pid
- && (!xwayland || in.si_pid != xwayland->server->pid))
- waitpid(in.si_pid, NULL, 0);
-#else
- while (waitpid(-1, NULL, WNOHANG) > 0);
+#ifdef XWAYLAND
+ && (!xwayland || in.si_pid != xwayland->server->pid)
#endif
+ ) {
+ pid_t *p, *lim;
+ waitpid(in.si_pid, NULL, 0);
+ if (in.si_pid == child_pid)
+ child_pid = -1;
+ if (!(p = autostart_pids))
+ continue;
+ lim = &p[autostart_len];
+
+ for (; p < lim; p++) {
+ if (*p == in.si_pid) {
+ *p = -1;
+ break;
+ }
+ }
+ }
} else if (signo == SIGINT || signo == SIGTERM) {
quit(NULL);
}
@@ -2224,6 +2272,7 @@ run(char *startup_cmd)
die("startup: backend_start");
/* Now that the socket exists and the backend is started, run the startup command */
+ autostartexec();
if (startup_cmd) {
int piperw[2];
if (pipe(piperw) < 0)
--
2.45.2
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