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signal.c: if to switch

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* signal.c (ruby_signal): turn multiple `if` statements into a
  `switch`.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45889 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-05-09 14:31:27 +00:00
parent 058b5bce60
commit b60fbca806
1 changed files with 9 additions and 5 deletions
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14
signal.c
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@ -532,18 +532,22 @@ ruby_signal(int signum, sighandler_t handler)
sigact.sa_flags = 0; sigact.sa_flags = 0;
#endif #endif
switch (signum) {
#ifdef SA_NOCLDWAIT #ifdef SA_NOCLDWAIT
if (signum == SIGCHLD && handler == SIG_IGN) case SIGCHLD:
sigact.sa_flags |= SA_NOCLDWAIT; if (handler == SIG_IGN)
sigact.sa_flags |= SA_NOCLDWAIT;
break;
#endif #endif
#if defined(SA_ONSTACK) && defined(USE_SIGALTSTACK) #if defined(SA_ONSTACK) && defined(USE_SIGALTSTACK)
if (signum == SIGSEGV case SIGSEGV:
#ifdef SIGBUS #ifdef SIGBUS
|| signum == SIGBUS case SIGBUS:
#endif #endif
)
sigact.sa_flags |= SA_ONSTACK; sigact.sa_flags |= SA_ONSTACK;
break;
#endif #endif
}
(void)VALGRIND_MAKE_MEM_DEFINED(&old, sizeof(old)); (void)VALGRIND_MAKE_MEM_DEFINED(&old, sizeof(old));
if (sigaction(signum, &sigact, &old) < 0) { if (sigaction(signum, &sigact, &old) < 0) {
if (errno != 0 && errno != EINVAL) { if (errno != 0 && errno != EINVAL) {