From bd734d5bedc74531db26626944814952abdc3909 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Thu, 1 Aug 2019 20:09:16 +0200
Subject: [PATCH] threads: set thread titles

---
 main.c   | 7 +++++++
 render.c | 8 ++++++++
 2 files changed, 15 insertions(+)

diff --git a/main.c b/main.c
index 68e22e31..40e1dc4b 100644
--- a/main.c
+++ b/main.c
@@ -12,6 +12,7 @@
 
 #include <sys/timerfd.h>
 #include <sys/sysinfo.h>
+#include <sys/prctl.h>
 
 #include <freetype/tttables.h>
 #include <wayland-client.h>
@@ -196,6 +197,12 @@ keyboard_repeater(void *arg)
 {
     struct terminal *term = arg;
 
+    char proc_title[16];
+    snprintf(proc_title, sizeof(proc_title), "foot:kbd-repeat");
+
+    if (prctl(PR_SET_NAME, proc_title, 0, 0, 0) < 0)
+        LOG_ERRNO("kbd repeat: failed to set process title");
+
     while (true) {
         LOG_DBG("repeater: waiting for start");
 
diff --git a/render.c b/render.c
index 2528831b..1ae6abb4 100644
--- a/render.c
+++ b/render.c
@@ -1,9 +1,11 @@
 #include "render.h"
 
 #include <string.h>
+
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/timerfd.h>
+#include <sys/prctl.h>
 
 #include <wayland-cursor.h>
 #include <xdg-shell.h>
@@ -316,6 +318,12 @@ render_worker_thread(void *_ctx)
     struct terminal *term = ctx->term;
     const int my_id = ctx->my_id;
 
+    char proc_title[16];
+    snprintf(proc_title, sizeof(proc_title), "foot:render:%d", my_id);
+
+    if (prctl(PR_SET_NAME, proc_title, 0, 0, 0) < 0)
+        LOG_ERRNO("render worker %d: failed to set process title", my_id);
+
     sem_t *start = &term->render.workers.start;
     sem_t *done = &term->render.workers.done;
     mtx_t *lock = &term->render.workers.lock;