thread_integration_detector.h

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// BSD 3-Clause License
// Copyright (c) 2021-2025, 🍀☀🌕🌥 🌊
// See the LICENSE file in the project root for full license information.
 
#pragma once
 
#if !defined(LOGGER_THREAD_INTEGRATION_DETECTED)
#define LOGGER_THREAD_INTEGRATION_DETECTED
 
// ============================================================================
// IExecutor Interface Detection (Issue #253)
// ============================================================================
// IExecutor is the preferred abstraction layer from common_system.
// When available, logger_system can accept any IExecutor implementation
// without compile-time dependency on thread_system.
 
#if !defined(LOGGER_HAS_IEXECUTOR)
#  if __has_include(<kcenon/common/interfaces/executor_interface.h>)
#    define LOGGER_HAS_IEXECUTOR 1
#  elif __has_include(<common/interfaces/executor_interface.h>)
#    define LOGGER_HAS_IEXECUTOR 1
#  else
#    define LOGGER_HAS_IEXECUTOR 0
#  endif
#endif
 
// ============================================================================
// Legacy thread_system Integration Detection
// ============================================================================
// thread_system integration is now OPTIONAL (Issue #222)
// USE_THREAD_SYSTEM is defined by CMake when LOGGER_USE_THREAD_SYSTEM=ON
// and thread_system is found
 
// Auto-detect thread_system availability via header presence
// Note: thread_system v3.0+ uses common_system interfaces instead of
// thread-specific logger_interface.h. Detection now uses umbrella headers.
#if defined(USE_THREAD_SYSTEM)
#  if !defined(USE_THREAD_SYSTEM_INTEGRATION)
#    if __has_include(<kcenon/thread/thread_pool.h>)
#      define USE_THREAD_SYSTEM_INTEGRATION 1
#    endif
#  endif
#endif
 
// ============================================================================
// Compile-time Detection Functions
// ============================================================================
 
namespace kcenon::logger::detail {
 
constexpr bool has_iexecutor_interface() noexcept {
#if LOGGER_HAS_IEXECUTOR
    return true;
#else
    return false;
#endif
}
 
constexpr bool has_any_executor_support() noexcept {
    return has_iexecutor_interface();
}
 
} // namespace kcenon::logger::detail
 
#endif // LOGGER_THREAD_INTEGRATION_DETECTED