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libbb: introduse and use signal_[no_]SA_RESTART_empty_mask and sigaction_set

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signal_SA_RESTART_empty_mask                           -      65     +65
signal_no_SA_RESTART_empty_mask                        -      54     +54
dd_main                                             1325    1369     +44
sigaction_set                                          -      19     +19
dname_enc                                            373     377      +4
UNSPEC_print                                          64      66      +2
setsignal                                            296     294      -2
bb_signals_recursive                                  95      92      -3
bb_askpass                                           367     361      -6
inetd_main                                          1810    1797     -13
rx_main                                              912     883     -29
sigdelset                                             32       -     -32
__sigdelset                                           32       -     -32
__GI_sigdelset                                        32       -     -32
sighup_handler                                        84      37     -47
arping_main                                         1844    1797     -47
fsck_main                                           1869    1807     -62
run_list                                            1917    1844     -73
vlock_main                                           492     409     -83
progressmeter                                        883     798     -85
handle_incoming_and_exit                            2737    2651     -86
------------------------------------------------------------------------------
(add/remove: 3/3 grow/shrink: 3/12 up/down: 188/-632)        Total: -444 bytes
This commit is contained in:
Denis Vlasenko
2008-03-12 23:19:35 +00:00
parent 4cf1d08fc2
commit 8e2cfec1cd
14 changed files with 60 additions and 83 deletions
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9
coreutils/dd.c
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@@ -121,9 +121,6 @@ int dd_main(int argc, char **argv)
off_t count;
off_t seek, skip;
const char *infile, *outfile;
#if ENABLE_FEATURE_DD_SIGNAL_HANDLING
struct sigaction sigact;
#endif
} Z;
#define flags (Z.flags )
#define oc (Z.oc )
@@ -132,17 +129,13 @@ int dd_main(int argc, char **argv)
#define skip (Z.skip )
#define infile (Z.infile )
#define outfile (Z.outfile)
#define sigact (Z.sigact )
memset(&Z, 0, sizeof(Z));
INIT_G();
//fflush(NULL); - is this needed because of NOEXEC?
#if ENABLE_FEATURE_DD_SIGNAL_HANDLING
sigact.sa_handler = dd_output_status;
sigact.sa_flags = SA_RESTART;
/*sigemptyset(&sigact.sa_mask); - memset did it */
sigaction(SIGUSR1, &sigact, NULL);
signal_SA_RESTART_empty_mask(SIGUSR1, dd_output_status);
#endif
for (n = 1; n < argc; n++) {