90 lines
3.5 KiB
C
90 lines
3.5 KiB
C
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#pragma once
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#ifndef ANSLIBSLOADER_H
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#define ANSLIBSLOADER_H
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// ============================================================================
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// ANSLibsLoader — Centralized dynamic library loader for ANSCENTER
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//
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// Consolidates all runtime DLL loading:
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// - ONNX Runtime (via EPLoader)
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// - TensorRT / cuDNN / CUDA (via NvDynLoader)
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// - OpenCV (via CvLoader)
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// - OpenVINO + TBB (via OvLoader)
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//
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// USAGE
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// -----
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// // At application startup:
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// ANSCENTER::ANSLibsLoader::Initialize();
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//
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// // At application exit (after all engine objects are destroyed):
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// ANSCENTER::ANSLibsLoader::Shutdown();
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//
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// EXPORT MACRO
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// ------------
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// ANSLIBS_API replaces both ANSCORE_API and ENGINE_API for loader classes.
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// Define ANSLIBSLOADER_EXPORTS when building ANSLibsLoader.dll.
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// All other projects importing from ANSLibsLoader get __declspec(dllimport).
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// ============================================================================
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#ifdef _WIN32
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# ifdef ANSLIBSLOADER_EXPORTS
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# define ANSLIBS_API __declspec(dllexport)
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# else
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# define ANSLIBS_API __declspec(dllimport)
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# endif
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#else
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# define ANSLIBS_API
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#endif
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#include "ANSLicense.h" // for ANSCENTER::EngineType enum
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#include <string>
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namespace ANSCENTER {
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class ANSLIBS_API ANSLibsLoader
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{
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public:
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// ── Platform defaults ────────────────────────────────────────────────
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#ifdef _WIN32
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static constexpr const char* DEFAULT_SHARED_DIR =
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"C:\\ProgramData\\ANSCENTER\\Shared";
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#else
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static constexpr const char* DEFAULT_SHARED_DIR =
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"/opt/anscenter/shared";
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#endif
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// ── Master initialization ────────────────────────────────────────────
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/// Calls all sub-loaders in the correct order:
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/// 1. Injects shared_dir into DLL search path
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/// 2. CvLoader — pre-loads OpenCV
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/// 3. OvLoader — pre-loads OpenVINO + TBB
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/// 4. NvDynLoader — loads TRT / cuDNN / CUDA (if NVIDIA)
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/// 5. EPLoader — loads ONNX Runtime with selected EP
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///
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/// Thread-safe. Subsequent calls are no-ops.
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static void Initialize(
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const std::string& shared_dir = DEFAULT_SHARED_DIR,
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EngineType preferred = EngineType::AUTO_DETECT);
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// ── Master shutdown ──────────────────────────────────────────────────
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/// Shuts down all sub-loaders in reverse order.
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/// Must be called AFTER all engine/session objects are destroyed.
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/// Safe to call multiple times.
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static void Shutdown();
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// ── Status ───────────────────────────────────────────────────────────
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[[nodiscard]] static bool IsInitialized();
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// ── Non-copyable / non-movable ───────────────────────────────────────
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ANSLibsLoader() = delete;
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ANSLibsLoader(const ANSLibsLoader&) = delete;
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ANSLibsLoader& operator=(const ANSLibsLoader&) = delete;
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private:
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static bool s_initialized;
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};
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} // namespace ANSCENTER
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#endif // ANSLIBSLOADER_H
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