strawberry-audio-player-win.../src/utilities/macosutils.mm

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/*
* Strawberry Music Player
* Copyright 2019-2021, Jonas Kvinge <jonas@jkvinge.net>
*
* Strawberry 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 3 of the License, or
* (at your option) any later version.
*
* Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <QtGlobal>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/resource.h>
#import <Foundation/Foundation.h>
#import <Foundation/NSProcessInfo.h>
#include "macosutils.h"
#include "core/logging.h"
namespace Utilities {
qint32 GetMacOsVersion() {
NSOperatingSystemVersion version = [ [NSProcessInfo processInfo] operatingSystemVersion];
return version.minorVersion;
}
void IncreaseFDLimit() {
// Bump the soft limit for the number of file descriptors from the default of 256 to the maximum (usually 10240).
struct rlimit limit;
getrlimit(RLIMIT_NOFILE, &limit);
// getrlimit() lies about the hard limit so we have to check sysctl.
int max_fd = 0;
size_t len = sizeof(max_fd);
sysctlbyname("kern.maxfilesperproc", &max_fd, &len, nullptr, 0);
limit.rlim_cur = max_fd;
int ret = setrlimit(RLIMIT_NOFILE, &limit);
if (ret == 0) {
qLog(Debug) << "Max fd:" << max_fd;
}
}
bool ProcessTranslated() {
int value = 0;
size_t value_size = sizeof(value);
if (sysctlbyname("sysctl.proc_translated", &value, &value_size, nullptr, 0) != 0) {
return false;
}
return value == 1;
}
} // namespace Utilities