3a124d1e88
The code works fine on macOS, but the default stack size we attempt to set is larger than what my system will allow (Nix attempts to set the stack size to 67108864, but the maximum allowed is 67092480), so I've instead used the requested stack size or the maximum allowed, whichever is smaller. I've also added an error message if setting the stack size fails. It looks like this: > Failed to increase stack size from 8372224 to 67108864 (maximum > allowed stack size: 67092480): Invalid argument
35 lines
641 B
C++
35 lines
641 B
C++
#pragma once
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///@file
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#include <optional>
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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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/**
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* Change the stack size.
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*/
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void setStackSize(rlim_t stackSize);
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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 startSignalHandlerThread(), 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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