mirror of
https://github.com/NixOS/nix
synced 2025-07-05 20:41:47 +02:00
41 lines
799 B
C++
41 lines
799 B
C++
#pragma once
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///@file
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#include <optional>
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#ifndef _WIN32
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# include <sys/resource.h>
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#endif
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#include "types.hh"
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namespace nix {
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/**
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* If cgroups are active, attempt to calculate the number of CPUs available.
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* If cgroups are unavailable or if cpu.max is set to "max", return 0.
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*/
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unsigned int getMaxCPU();
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// It does not seem possible to dynamically change stack size on Windows.
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#ifndef _WIN32
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/**
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* Change the stack size.
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*/
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void setStackSize(size_t stackSize);
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#endif
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/**
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* Restore the original inherited Unix process context (such as signal
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* masks, stack size).
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* See unix::startSignalHandlerThread(), unix::saveSignalMask().
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*/
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void restoreProcessContext(bool restoreMounts = true);
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/**
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* @return the path of the current executable.
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*/
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std::optional<Path> getSelfExe();
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}
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