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commit 3ec7bf9dc4fbf2404cf9a21bc0b65c3b137a70c6
Author: Nicola Ferru Aka NFVblog <ask.nfvblog@outlook.it>
Date: Thu Nov 30 15:12:19 2023 +0100
autostart patch
diff --git a/config.def.h b/config.def.h
index db0babc..416f5da 100644
--- a/config.def.h
+++ b/config.def.h
@@ -13,6 +13,12 @@ static const float urgentcolor[] = COLOR(0xff0000ff);
/* To conform the xdg-protocol, set the alpha to zero to restore the old behavior */
static const float fullscreen_bg[] = {0.1, 0.1, 0.1, 1.0}; /* You can also use glsl colors */
+/* Autostart */
+static const char *const autostart[] = {
+ "wbg", "/path/to/your/image", NULL,
+ NULL /* terminate */
+};
+
/* tagging - TAGCOUNT must be no greater than 31 */
#define TAGCOUNT (9)
diff --git a/dwl.c b/dwl.c
index ef27a1d..70c4f61 100644
--- a/dwl.c
+++ b/dwl.c
@@ -228,6 +228,7 @@ typedef struct {
/* function declarations */
static void applybounds(Client *c, struct wlr_box *bbox);
+static void autostartexec(void);
static void applyrules(Client *c);
static void arrange(Monitor *m);
static void arrangelayer(Monitor *m, struct wl_list *list,
@@ -396,6 +397,9 @@ 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)
@@ -414,6 +418,27 @@ applybounds(Client *c, struct wlr_box *bbox)
c->geom.y = bbox->y;
}
+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
applyrules(Client *c)
{
@@ -624,11 +649,21 @@ 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);
@@ -1306,18 +1341,31 @@ 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);
}
@@ -1973,6 +2021,7 @@ 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)
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