hook_registry.h

Go to the documentation of this file.

// SPDX-License-Identifier: Apache-2.0
#pragma once
 
#include <entropic/types/hooks.h>
#include <entropic/types/error.h>
 
#include <array>
#include <shared_mutex>
#include <vector>
 
namespace entropic {
 
struct HookEntry {
    entropic_hook_callback_t callback; 
    void* user_data;                   
    int priority;                      
};
 
class HookRegistry {
public:
    entropic_error_t register_hook(
        entropic_hook_point_t point,
        entropic_hook_callback_t callback,
        void* user_data,
        int priority);
 
    entropic_error_t deregister_hook(
        entropic_hook_point_t point,
        entropic_hook_callback_t callback,
        void* user_data);
 
    int fire_pre(
        entropic_hook_point_t point,
        const char* context_json,
        char** out_json);
 
    void fire_post(
        entropic_hook_point_t point,
        const char* context_json,
        char** out_json);
 
    void fire_info(
        entropic_hook_point_t point,
        const char* context_json);
 
    size_t hook_count(entropic_hook_point_t point) const;
 
private:
    static bool is_valid_point(entropic_hook_point_t point);
 
    std::vector<HookEntry> snapshot(entropic_hook_point_t point) const;
 
    std::array<std::vector<HookEntry>, ENTROPIC_HOOK_COUNT_> entries_;
 
    mutable std::array<std::shared_mutex, ENTROPIC_HOOK_COUNT_> mutexes_;
};
 
} // namespace entropic