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* process.c (rb_waitpid): use wait_each() on no waitpid platforms.

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[ruby-dev:38054]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22688 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2009-03-01 07:15:33 +00:00
parent 135930e95b
commit da9ffe378f
2 changed files with 49 additions and 34 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sun Mar 1 16:15:31 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* process.c (rb_waitpid): use wait_each() on no waitpid platforms.
[ruby-dev:38054]
Sun Mar 1 16:01:01 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* process.c (proc_daemon): stops and restarts timer thread because

78
process.c
View file

@ -590,6 +590,29 @@ pst_wcoredump(VALUE st)
#if !defined(HAVE_WAITPID) && !defined(HAVE_WAIT4)
#define NO_WAITPID
static st_table *pid_tbl;
struct wait_data {
rb_pid_t pid;
int status;
};
static int
wait_each(rb_pid_t pid, int status, struct wait_data *data)
{
if (data->status != -1) return ST_STOP;
data->pid = pid;
data->status = status;
return ST_DELETE;
}
static int
waitall_each(rb_pid_t pid, int status, VALUE ary)
{
rb_last_status_set(status, pid);
rb_ary_push(ary, rb_assoc_new(PIDT2NUM(pid), rb_last_status_get()));
return ST_DELETE;
}
#else
struct waitpid_arg {
rb_pid_t pid;
@ -624,7 +647,7 @@ rb_waitpid(rb_pid_t pid, int *st, int flags)
#ifndef NO_WAITPID
struct waitpid_arg arg;
retry:
retry:
arg.pid = pid;
arg.st = st;
arg.flags = flags;
@ -635,13 +658,25 @@ retry:
RUBY_VM_CHECK_INTS();
goto retry;
}
return -1;
return (rb_pid_t)-1;
}
#else /* NO_WAITPID */
if (pid_tbl && st_lookup(pid_tbl, pid, (st_data_t *)st)) {
rb_last_status_set(*st, pid);
st_delete(pid_tbl, (st_data_t*)&pid, NULL);
return pid;
if (pid_tbl) {
st_data_t status, piddata = (st_data_t)pid;
if (pid == (rb_pid_t)-1) {
struct wait_data data;
data.pid = (rb_pid_t)-1;
data.status = -1;
st_foreach(pid_tbl, wait_each, (st_data_t)&data);
if (data.status != -1) {
rb_last_status_set(data.status, data.pid);
return data.pid;
}
}
else if (st_delete(pid_tbl, &piddata, &status)) {
rb_last_status_set(*st = (int)status, pid);
return pid;
}
}
if (flags) {
@ -656,13 +691,13 @@ retry:
rb_thread_schedule();
continue;
}
return -1;
return (rb_pid_t)-1;
}
if (result == pid) {
if (result == pid || pid == (rb_pid_t)-1) {
break;
}
if (!pid_tbl)
pid_tbl = st_init_numtable();
pid_tbl = st_init_numtable();
st_insert(pid_tbl, pid, (st_data_t)st);
if (!rb_thread_alone()) rb_thread_schedule();
}
@ -673,31 +708,6 @@ retry:
return result;
}
#ifdef NO_WAITPID
struct wait_data {
rb_pid_t pid;
int status;
};
static int
wait_each(rb_pid_t pid, int status, struct wait_data *data)
{
if (data->status != -1) return ST_STOP;
data->pid = pid;
data->status = status;
return ST_DELETE;
}
static int
waitall_each(rb_pid_t pid, int status, VALUE ary)
{
rb_last_status_set(status, pid);
rb_ary_push(ary, rb_assoc_new(PIDT2NUM(pid), rb_last_status_get()));
return ST_DELETE;
}
#endif
/* [MG]:FIXME: I wasn't sure how this should be done, since ::wait()
has historically been documented as if it didn't take any arguments