1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* ISC license. */
#include <stdint.h>
#include <signal.h>
#include <skalibs/sgetopt.h>
#include <skalibs/types.h>
#include <skalibs/bitarray.h>
#include <skalibs/sig.h>
#include <skalibs/tai.h>
#include <skalibs/strerr2.h>
#include "s6-svlisten.h"
#define USAGE "s6-svwait [ -U | -u | -d | -D | -r | -R ] [ -a | -o ] [ -t timeout ] servicedir..."
#define dieusage() strerr_dieusage(100, USAGE)
int main (int argc, char const *const *argv)
{
tain deadline ;
int or = 0 ;
int wantup = 1, wantready = 0 ;
PROG = "s6-svwait" ;
{
unsigned int t = 0 ;
subgetopt l = SUBGETOPT_ZERO ;
for (;;)
{
int opt = subgetopt_r(argc, argv, "UudDrRaot:", &l) ;
if (opt == -1) break ;
switch (opt)
{
case 'U' : wantup = 1 ; wantready = 1 ; break ;
case 'u' : wantup = 1 ; wantready = 0 ; break ;
case 'd' : wantup = 0 ; wantready = 0 ; break ;
case 'D' : wantup = 0 ; wantready = 1 ; break ;
case 'r' : wantup = 2 ; wantready = 0 ; break ;
case 'R' : wantup = 2 ; wantready = 1 ; break ;
case 'a' : or = 0 ; break ;
case 'o' : or = 1 ; break ;
case 't' : if (!uint0_scan(l.arg, &t)) dieusage() ; break ;
default : dieusage() ;
}
}
argc -= l.ind ; argv += l.ind ;
if (t) tain_from_millisecs(&deadline, t) ; else deadline = tain_infinite_relative ;
}
if (!argc) dieusage() ;
tain_now_set_stopwatch_g() ;
tain_add_g(&deadline, &deadline) ;
{
s6_svlisten_t foo = S6_SVLISTEN_ZERO ;
int e ;
uint16_t ids[argc] ;
unsigned char upstate[bitarray_div8(argc)] ;
unsigned char readystate[bitarray_div8(argc)] ;
if (!sig_ignore(SIGPIPE)) strerr_diefu1sys(111, "ignore SIGPIPE") ;
s6_svlisten_init(argc, argv, &foo, ids, upstate, readystate, &deadline) ;
if (wantup == 2)
{
wantup = 1 ;
e = s6_svlisten_loop(&foo, 0, 0, 0, &deadline, -1, 0) ;
if (e < 0) strerr_dief1x(102, "supervisor died") ;
else if (e > 0) strerr_dief1x(e, "some services reported permanent failure") ;
}
e = s6_svlisten_loop(&foo, wantup, wantready, or, &deadline, -1, 0) ;
if (e < 0) strerr_dief1x(102, "supervisor died") ;
else if (e > 0) strerr_dief1x(e, "some services reported permanent failure") ;
}
return 0 ;
}
|
