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* process.c (proc_getmaxgroups, proc_setmaxgroups): refrect

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platform maxgroups limitation by default instead hardcoded 65536.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31047 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2011-03-07 11:58:12 +00:00
parent 1df42597d1
commit 1a8ee910f3
2 changed files with 26 additions and 6 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Mon Mar 7 20:49:12 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* process.c (proc_getmaxgroups, proc_setmaxgroups): refrect
platform maxgroups limitation by default instead hardcoded 65536.
Mon Mar 7 17:13:00 2011 Yukihiro Matsumoto <matz@ruby-lang.org>
* gc.c (rb_gc_set_params): allow GC parameter configuration by

27
process.c
View file

@ -4541,7 +4541,18 @@ proc_setgid(VALUE obj, VALUE id)
* Windows 1015
*/
#define RB_MAX_GROUPS (65536)
static int maxgroups = RB_MAX_GROUPS;
static int _maxgroups = -1;
static int maxgroups(void)
{
if (_maxgroups < 0) {
_maxgroups = sysconf(_SC_NGROUPS_MAX);
if (_maxgroups < 0)
_maxgroups = RB_MAX_GROUPS;
}
return _maxgroups;
}
#ifdef HAVE_GETGROUPS
@ -4608,8 +4619,8 @@ proc_setgroups(VALUE obj, VALUE ary)
Check_Type(ary, T_ARRAY);
ngroups = RARRAY_LEN(ary);
if (ngroups > (size_t)maxgroups)
rb_raise(rb_eArgError, "too many groups, %u max", maxgroups);
if (ngroups > (size_t)maxgroups())
rb_raise(rb_eArgError, "too many groups, %u max", maxgroups());
groups = ALLOCA_N(rb_gid_t, ngroups);
@ -4691,7 +4702,7 @@ proc_initgroups(VALUE obj, VALUE uname, VALUE base_grp)
static VALUE
proc_getmaxgroups(VALUE obj)
{
return INT2FIX(maxgroups);
return INT2FIX(maxgroups());
}
@ -4707,6 +4718,7 @@ static VALUE
proc_setmaxgroups(VALUE obj, VALUE val)
{
int ngroups = FIX2INT(val);
int ngroups_max = sysconf(_SC_NGROUPS_MAX);
if (ngroups <= 0)
rb_raise(rb_eArgError, "maxgroups %d shold be positive", ngroups);
@ -4714,9 +4726,12 @@ proc_setmaxgroups(VALUE obj, VALUE val)
if (ngroups > RB_MAX_GROUPS)
ngroups = RB_MAX_GROUPS;
maxgroups = ngroups;
if (ngroups_max > 0 && ngroups > ngroups_max)
ngroups = ngroups_max;
return INT2FIX(maxgroups);
_maxgroups = ngroups;
return INT2FIX(_maxgroups);
}
#if defined(HAVE_DAEMON) || (defined(HAVE_FORK) && defined(HAVE_SETSID))