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annotate util.c @ 384:126e78129f1d

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configurenotify remembers max geom now, and restores this if necessary, however it accepts to touch the max size on configurerequest, this shouldn't break fillscreen apps (tested with mplayer)
author Anselm R. Garbe <arg@10kloc.org>
date Tue, 29 Aug 2006 17:31:55 +0200
parents 44a55e6e46bf
children 9d23330a5268
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1 /*
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2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
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3 * See LICENSE file for license details.
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4 */
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5 #include "dwm.h"
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6 #include <stdarg.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <sys/wait.h>
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10 #include <unistd.h>
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12 /* extern */
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14 void *
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15 emallocz(unsigned int size)
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16 {
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17 void *res = calloc(1, size);
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18
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19 if(!res)
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20 eprint("fatal: could not malloc() %u bytes\n", size);
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21 return res;
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22 }
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23
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24 void
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25 eprint(const char *errstr, ...)
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26 {
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27 va_list ap;
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28
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29 va_start(ap, errstr);
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30 vfprintf(stderr, errstr, ap);
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31 va_end(ap);
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32 exit(EXIT_FAILURE);
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33 }
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34
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35 void *
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36 erealloc(void *ptr, unsigned int size)
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37 {
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38 void *res = realloc(ptr, size);
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39 if(!res)
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40 eprint("fatal: could not malloc() %u bytes\n", size);
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41 return res;
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42 }
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43
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44 void
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45 spawn(Arg *arg)
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46 {
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47 static char *shell = NULL;
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48
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49 if(!shell && !(shell = getenv("SHELL")))
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50 shell = "/bin/sh";
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51
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52 if(!arg->cmd)
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53 return;
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54 /* the double-fork construct avoids zombie processes */
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55 if(fork() == 0) {
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56 if(fork() == 0) {
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57 if(dpy)
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58 close(ConnectionNumber(dpy));
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59 setsid();
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60 execl(shell, shell, "-c", arg->cmd, (char *)NULL);
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61 fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg->cmd);
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62 perror(" failed");
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63 }
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64 exit(0);
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65 }
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66 wait(0);
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67 }