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livetrax/libs/pbd/resource.cc

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1.7 KiB
C++

/*
Copyright (C) 2011 Tim Mayberry
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef PLATFORM_WINDOWS
#include <stdio.h>
#else
#include <sys/time.h>
#include <sys/resource.h>
#endif
#include "pbd/resource.h"
namespace PBD {
bool
get_resource_limit (ResourceType resource, ResourceLimit& limit)
{
if (resource == OpenFiles)
{
#ifdef PLATFORM_WINDOWS
limit.current_limit = _getmaxstdio();
limit.max_limit = 2048;
return true;
#else
struct rlimit rl;
if (getrlimit (RLIMIT_NOFILE, &rl) == 0) {
limit.current_limit = rl.rlim_cur;
limit.max_limit = rl.rlim_max;
return true;
}
#endif
}
return false;
}
bool
set_resource_limit (ResourceType resource, const ResourceLimit& limit)
{
if (resource == OpenFiles)
{
#ifdef PLATFORM_WINDOWS
// no soft and hard limits on windows
rlimit_t new_max = _setmaxstdio(limit.current_limit);
if (new_max == limit.current_limit) return true;
#else
struct rlimit rl;
rl.rlim_cur = limit.current_limit;
rl.rlim_max = limit.max_limit;
if (setrlimit (RLIMIT_NOFILE, &rl) == 0) {
return true;
}
#endif
}
return false;
}
} // namespace PBD