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42 lines
734 B
C
42 lines
734 B
C
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static int statussig;
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pid_t statuspid = -1;
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pid_t
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getstatusbarpid()
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{
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char buf[32], *str = buf, *c;
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FILE *fp;
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if (statuspid > 0) {
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snprintf(buf, sizeof(buf), "/proc/%u/cmdline", statuspid);
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if ((fp = fopen(buf, "r"))) {
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fgets(buf, sizeof(buf), fp);
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while ((c = strchr(str, '/')))
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str = c + 1;
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fclose(fp);
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if (!strcmp(str, STATUSBAR))
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return statuspid;
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}
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}
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if (!(fp = popen("pgrep -o "STATUSBAR, "r")))
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return -1;
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fgets(buf, sizeof(buf), fp);
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pclose(fp);
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return strtol(buf, NULL, 10);
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}
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void
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sigstatusbar(const Arg *arg)
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{
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union sigval sv;
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if (!statussig)
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return;
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if ((statuspid = getstatusbarpid()) <= 0)
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return;
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sv.sival_int = arg->i;
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sigqueue(statuspid, SIGRTMIN+statussig, sv);
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}
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