-failed_assert(char *a, char *file, int line)
-{
- fprintf(stderr, "Assertion \"%s\" failed at %s:%d\n", a, file, line);
- abort();
-}
-
-void
-swap(void **p1, void **p2)
-{
- void *tmp = *p1;
- *p1 = *p2;
- *p2 = tmp;
-}
-
-void
-spawn(Display *dpy, const char *cmd)
-{
- if(!shell && !(shell = getenv("SHELL")))
- shell = "/bin/sh";
-
- if(!cmd)
- return;
- if(fork() == 0) {
- if(fork() == 0) {
- setsid();
- if(dpy)
- close(ConnectionNumber(dpy));
- execlp(shell, "shell", "-c", cmd, NULL);
- fprintf(stderr, "gridwm: execvp %s", cmd);
- perror(" failed");
- }
- exit (0);
- }
- wait(0);
-}
-
-void
-pipe_spawn(char *buf, unsigned int len, Display *dpy, const char *cmd)
-{
- unsigned int l, n;
- int pfd[2];
-
- if(!shell && !(shell = getenv("SHELL")))
- shell = "/bin/sh";