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libbb: introduce bb_signals and bb_signals_recursive,

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which sets same handler for many signals. sig_catch is nuked
(bb_signals_recursive is more descriptive name).
*: use them as appropriate. 

function                                             old     new   delta
bb_signals_recursive                                   -      95     +95
bb_signals                                             -      52     +52
run_command                                          258     273     +15
svlogd_main                                         1368    1377      +9
runsv_main                                          1746    1752      +6
runsvdir_main                                       1643    1646      +3
UNSPEC_print                                          64      66      +2
time_main                                           1128    1127      -1
...
resize_main                                          246     210     -36
sig_catch                                             63       -     -63
set_fatal_sighandler                                  85      14     -71
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 5/24 up/down: 182/-548)        Total: -366 bytes
This commit is contained in:
Denis Vlasenko
2008-02-16 22:58:56 +00:00
parent 7fc294cdfe
commit 25591c322c
26 changed files with 249 additions and 154 deletions
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6
miscutils/watchdog.c
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@ -47,8 +47,10 @@ int watchdog_main(int argc, char **argv)
bb_daemonize_or_rexec(DAEMON_CHDIR_ROOT, argv);
}
signal(SIGHUP, watchdog_shutdown);
signal(SIGINT, watchdog_shutdown);
bb_signals(0
+ (1 << SIGHUP)
+ (1 << SIGINT)
, watchdog_shutdown);
/* Use known fd # - avoid needing global 'int fd' */
xmove_fd(xopen(argv[argc - 1], O_WRONLY), 3);