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use SIGCHLD_LOSSY to enable waitpid polling mode

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Some systems lack SIGCHLD or have incomplete SIGCHLD
implementations.  So enable polling mode for them.

[ruby-core:87705] [Bug #14867]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63795 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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normal 2018-06-30 00:51:57 +00:00
parent 47f3c4d147
commit ce2a3b40ed
5 changed files with 20 additions and 3 deletions
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2
mjit.c
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@ -408,7 +408,7 @@ exec_process(const char *path, char *const argv[])
{
int stat, exit_code = -2;
pid_t pid;
rb_vm_t *vm = RUBY_SIGCHLD ? GET_VM() : 0;
rb_vm_t *vm = (RUBY_SIGCHLD || SIGCHLD_LOSSY) ? GET_VM() : 0;
rb_nativethread_cond_t cond;
if (vm) {