87 lines
1.3 KiB
C
87 lines
1.3 KiB
C
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/*
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* Clumsy hack to take snapshots and dumps.
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*/
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#include <u.h>
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#include <libc.h>
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void
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usage(void)
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{
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fprint(2, "usage: fossil/dump [-i snap-interval] [-n name] fscons /n/fossil\n");
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exits("usage");
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}
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char*
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snapnow(void)
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{
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Tm t;
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static char buf[100];
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t = *localtime(time(0)-5*60*60); /* take dumps at 5:00 am */
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sprint(buf, "archive/%d/%02d%02d", t.year+1900, t.mon+1, t.mday);
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return buf;
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}
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void
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main(int argc, char **argv)
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{
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int onlyarchive, cons, s;
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ulong t, i;
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char *name;
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name = "main";
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s = 0;
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onlyarchive = 0;
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i = 60*60; /* one hour */
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ARGBEGIN{
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case 'i':
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i = atoi(EARGF(usage()));
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if(i == 0){
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onlyarchive = 1;
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i = 60*60;
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}
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break;
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case 'n':
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name = EARGF(usage());
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break;
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case 's':
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s = atoi(EARGF(usage()));
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break;
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}ARGEND
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if(argc != 2)
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usage();
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if((cons = open(argv[0], OWRITE)) < 0)
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sysfatal("open %s: %r", argv[0]);
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if(chdir(argv[1]) < 0)
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sysfatal("chdir %s: %r", argv[1]);
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rfork(RFNOTEG);
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switch(fork()){
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case -1:
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sysfatal("fork: %r");
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case 0:
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break;
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default:
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exits(0);
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}
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/*
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* pause at boot time to let clock stabilize.
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*/
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if(s)
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sleep(s*1000);
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for(;;){
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if(access(snapnow(), AEXIST) < 0)
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fprint(cons, "\nfsys %s snap -a\n", name);
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t = time(0);
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sleep((i - t%i)*1000+200);
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if(!onlyarchive)
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fprint(cons, "\nfsys %s snap\n", name);
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}
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}
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