[hackers] [surf] Fix synchronization issue with atoms || Quentin Rameau

[git]

commit f5be376ccc1fef96722df610c4783e99ce1e944e
Author:     Quentin Rameau <quinq@fifth.space>
AuthorDate: Fri May 12 00:28:24 2017 +0200
Commit:     Quentin Rameau <quinq@fifth.space>
CommitDate: Fri May 12 00:30:51 2017 +0200

    Fix synchronization issue with atoms
    
    Be sure to sync after setting an atom.
    Sync too before reading one.

diff --git a/surf.c b/surf.c
index f02418a..2d3a6f5 100644
--- a/surf.c
+++ b/surf.c
@@ -530,10 +530,10 @@ geturi(Client *c)
 void
 setatom(Client *c, int a, const char *v)
 {
-       XSync(dpy, False);
        XChangeProperty(dpy, c->xid,
                        atoms[a], XA_STRING, 8, PropModeReplace,
                        (unsigned char *)v, strlen(v) + 1);
+       XSync(dpy, False);
 }
 
 const char *
@@ -545,6 +545,7 @@ getatom(Client *c, int a)
        unsigned long ldummy;
        unsigned char *p = NULL;
 
+       XSync(dpy, False);
        XGetWindowProperty(dpy, c->xid, atoms[a], 0L, BUFSIZ, False, XA_STRING,
                           &adummy, &idummy, &ldummy, &ldummy, &p);
        if (p)