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//
// Copyright 2020 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// system_utils_apple.cpp: Implementation of OS-specific functions for Apple platforms
#include "system_utils.h"
#include <unistd.h>
#include <CoreServices/CoreServices.h>
#include <mach-o/dyld.h>
#include <mach/mach.h>
#include <mach/mach_time.h>
#include <cstdlib>
#include <vector>
#include <array>
namespace angle
{
std::string GetExecutablePath()
{
std::string result;
uint32_t size = 0;
_NSGetExecutablePath(nullptr, &size);
std::vector<char> buffer;
buffer.resize(size + 1);
_NSGetExecutablePath(buffer.data(), &size);
buffer[size] = '\0';
if (!strrchr(buffer.data(), '/'))
{
return "";
}
return buffer.data();
}
std::string GetExecutableDirectory()
{
std::string executablePath = GetExecutablePath();
size_t lastPathSepLoc = executablePath.find_last_of("/");
return (lastPathSepLoc != std::string::npos) ? executablePath.substr(0, lastPathSepLoc) : "";
}
double GetCurrentSystemTime()
{
mach_timebase_info_data_t timebaseInfo;
mach_timebase_info(&timebaseInfo);
double secondCoeff = timebaseInfo.numer * 1e-9 / timebaseInfo.denom;
return secondCoeff * mach_absolute_time();
}
} // namespace angle
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