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fc221e234d
Remove custom delcarations inside `std::` of which behaviors are undefined by the standard
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT license.
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#ifndef MSCCLPP_UTILS_HPP_
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#define MSCCLPP_UTILS_HPP_
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#include <functional>
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#include <mscclpp/core.hpp>
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#include <string>
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namespace mscclpp {
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namespace detail {
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// Refer https://www.boost.org/doc/libs/1_86_0/libs/container_hash/doc/html/hash.html#combine
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template <typename T>
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inline void hashCombine(std::size_t& seed, const T& value) {
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std::hash<T> hasher;
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seed ^= hasher(value) + 0x9e3779b9 + (seed << 6) + (seed >> 2);
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}
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} // namespace detail
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/// Get the host name of the system.
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/// @param maxlen The maximum length of the returned string.
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/// @param delim The delimiter to use for the host name; if the delimiter is found before maxlen characters, the
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/// host name will be truncated at that point.
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/// @return The host name of the system, truncated to maxlen characters if necessary, and split by
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/// the specified delimiter.
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/// @throw Error if it fails to retrieve the host name (error code: SystemError).
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std::string getHostName(int maxlen, const char delim);
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/// Get the number of available InfiniBand devices.
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///
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/// @return The number of available InfiniBand devices.
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int getIBDeviceCount();
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/// Get the name of the InfiniBand device associated with the specified transport.
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///
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/// @param ibTransport The InfiniBand transport to get the device name for.
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/// @return The name of the InfiniBand device associated with the specified transport.
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std::string getIBDeviceName(Transport ibTransport);
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/// Get the InfiniBand transport associated with the specified device name.
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///
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/// @param ibDeviceName The name of the InfiniBand device to get the transport for.
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/// @return The InfiniBand transport associated with the specified device name.
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Transport getIBTransportByDeviceName(const std::string& ibDeviceName);
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} // namespace mscclpp
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#endif // MSCCLPP_UTILS_HPP_
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