// Portions of this file are from JUCE (http://www.juce.com).
// Copyright (c) 2013 - Raw Material Software Ltd.
// Please visit http://www.juce.com

#pragma once

#include <boost/predef.h>

#include <cstddef>
#include <string>
#include <string_view>

namespace beast {

/**
 * Changes the name of the caller thread.
 * Different OSes may place different length or content limits on this name.
 */
void
setCurrentThreadName(std::string_view newThreadName);

#if BOOST_OS_LINUX

// On Linux, thread names are limited to 16 bytes including the null terminator.
// Maximum number of characters is therefore 15.
constexpr std::size_t kMaxThreadNameLength = 15;

/**
 * Sets the name of the caller thread with compile-time size checking.
 * @tparam N The size of the string literal including null terminator
 * @param newThreadName A string literal to set as the thread name
 *
 * This template overload enforces that thread names are at most 16 characters
 * (including null terminator) at compile time, matching Linux's limit.
 */
template <std::size_t N>
void
setCurrentThreadName(char const (&newThreadName)[N])
{
    static_assert(N <= kMaxThreadNameLength + 1, "Thread name cannot exceed 15 characters");

    setCurrentThreadName(std::string_view(newThreadName, N - 1));
}
#endif

/**
 * Returns the name of the caller thread.
 *
 * The name returned is the name as set by a call to setCurrentThreadName().
 * If the thread name is set by an external force, then that name change
 * will not be reported.
 *
 * If no name has ever been set, then the empty string is returned.
 */
std::string
getCurrentThreadName();

}  // namespace beast