userver
C++ Async Framework
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cpu_limit.hpp
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#
pragma
once
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/// @file userver/hostinfo/cpu_limit.hpp
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/// @brief Information about CPU limits in container.
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/// @ingroup userver_universal
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#
include
<
optional
>
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USERVER_NAMESPACE_BEGIN
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/// @brief Information about current host.
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namespace
hostinfo {
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/// @brief Returns the CPU limit.
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///
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/// Unlike `nproc` and
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/// `std::thread::hardware_concurrency` this method considers container limits
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/// and may return fractional values.
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///
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/// Uses:
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/// * CPU_LIMIT environment variable (example: `CPU_LIMIT=1.95c`).
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std::optional<
double
>
CpuLimit
();
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/// @brief Returns true if the current process is run in container (CPU_LIMIT
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/// environment variable is set).
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bool
IsInRtc
();
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}
// namespace hostinfo
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USERVER_NAMESPACE_END
userver
hostinfo
cpu_limit.hpp
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