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# HG changeset patch
# User Barbu Paul - Gheorghe <barbu.paul.gheorghe@gmail.com>
# Date 1354650884 -7200
# Node ID 6c472a21a5887c5295a331c48c4da188ec2c8413
# Parent aaab44133a6830c9a00263731d098c01cc1d6fb5
selfrestart now magically locates the current dwm (no need to hardcode a path)
diff -r aaab44133a68 -r 6c472a21a588 config.def.h
--- a/config.def.h Tue Dec 04 21:54:44 2012 +0200
+++ b/config.def.h Tue Dec 04 21:54:44 2012 +0200
@@ -54,6 +54,8 @@
static const char *termcmd[] = { "urxvtc", NULL };
static const char *filemancmd[] = { "thunar", NULL };
+#include "selfrestart.c"
+
static Key keys[] = {
/* modifier key function argument */
{ MODKEY, XK_r, spawn, {.v = dmenucmd } },
@@ -89,6 +91,7 @@
TAGKEYS( XK_7, 6)
TAGKEYS( XK_8, 7)
TAGKEYS( XK_9, 8)
+ { MODKEY|ShiftMask, XK_r, self_restart, {0} },
{ MODKEY|ShiftMask, XK_q, quit, {0} },
};
@@ -108,4 +111,3 @@
{ ClkTagBar, MODKEY, Button1, tag, {0} },
{ ClkTagBar, MODKEY, Button3, toggletag, {0} },
};
-
diff -r aaab44133a68 -r 6c472a21a588 selfrestart.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/selfrestart.c Tue Dec 04 21:54:44 2012 +0200
@@ -0,0 +1,65 @@
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * Magically finds the current's executable path
+ *
+ * I'm doing the do{}while(); trick because Linux (what I'm running) is not
+ * POSIX compilant and so lstat() cannot be trusted on /proc entries
+ *
+ * @return char* the path of the current executable
+ */
+char *get_dwm_path(){
+ struct stat s;
+ int r, length, rate = 42;
+ char *path = NULL;
+
+ if(lstat("/proc/self/exe", &s) == -1){
+ perror("lstat:");
+ return NULL;
+ }
+
+ length = s.st_size + 1 - rate;
+
+ do{
+ length+=rate;
+
+ free(path);
+ path = malloc(sizeof(char) * length);
+
+ if(path == NULL){
+ perror("malloc:");
+ return NULL;
+ }
+
+ r = readlink("/proc/self/exe", path, length);
+
+ if(r == -1){
+ perror("readlink:");
+ return NULL;
+ }
+ }while(r >= length);
+
+ path[r] = '\0';
+
+ return path;
+}
+
+/**
+ * self-restart
+ *
+ * Initially inspired by: Yu-Jie Lin
+ * https://sites.google.com/site/yjlnotes/notes/dwm
+ */
+void self_restart(const Arg *arg) {
+ char *const argv[] = {get_dwm_path(), NULL};
+
+ if(argv[0] == NULL){
+ return;
+ }
+
+ execv(argv[0], argv);
+}
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