mjsonrpc.h

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#ifndef MJSONRPC_H_
#define MJSONRPC_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include "cJSON.h"
#include <stdint.h>
 
#define JSON_RPC_CODE_PARSE_ERROR (-32700)
 
#define JSON_RPC_CODE_INVALID_REQUEST (-32600)
 
#define JSON_RPC_CODE_METHOD_NOT_FOUND (-32601)
 
#define JSON_RPC_CODE_INVALID_PARAMS (-32603)
 
#define JSON_RPC_CODE_INTERNAL_ERROR (-32693)
 
// -32000 to -32099 Reserved for implementation-defined server-errors.
 
enum mjrpc_error_return
{
    MJRPC_RET_OK,
    
    MJRPC_RET_OK_NOTIFICATION,
    
    MJRPC_RET_ERROR_MEM_ALLOC_FAILED,
    
    MJRPC_RET_ERROR_NOT_FOUND,
    
    MJRPC_RET_ERROR_EMPTY_REQUEST,
    
    MJRPC_RET_ERROR_NOT_OBJ_ARY,
    
    MJRPC_RET_ERROR_PARSE_FAILED,
    
    MJRPC_RET_ERROR_HANDLE_NOT_INITIALIZED,
    
    MJRPC_RET_ERROR_INVALID_PARAM
};
 
typedef struct
{
    void* data;
    
    int32_t error_code;
    
    char* error_message;
} mjrpc_func_ctx_t;
 
typedef cJSON* (*mjrpc_func)(mjrpc_func_ctx_t* context, cJSON* params, cJSON* id);
 
struct mjrpc_method
{
    char* name;
    
    mjrpc_func func;
    
    void* arg;
    
    int state;
};
 
typedef struct mjrpc_handle
{
    struct mjrpc_method* methods;
    
    size_t capacity;
    
    size_t size;
} mjrpc_handle_t;
 
typedef void* (*mjrpc_malloc_func)(size_t size);
 
typedef void (*mjrpc_free_func)(void* ptr);
 
typedef char* (*mjrpc_strdup_func)(const char* str);
 
int mjrpc_set_memory_hooks(mjrpc_malloc_func malloc_func, mjrpc_free_func free_func,
                           mjrpc_strdup_func strdup_func);
 
char* mjrpc_request_str(const char* method, cJSON* params, cJSON* id);
 
cJSON* mjrpc_request_cjson(const char* method, cJSON* params, cJSON* id);
 
cJSON* mjrpc_response_ok(cJSON* result, cJSON* id);
 
cJSON* mjrpc_response_error(int code, char* message, cJSON* id);
 
mjrpc_handle_t* mjrpc_create_handle(size_t initial_capacity);
 
int mjrpc_destroy_handle(mjrpc_handle_t* handle);
 
int mjrpc_add_method(mjrpc_handle_t* handle, mjrpc_func function_pointer, const char* method_name,
                     void* arg2func);
 
int mjrpc_del_method(mjrpc_handle_t* handle, const char* method_name);
 
char* mjrpc_process_str(mjrpc_handle_t* handle, const char* request_str, int* ret_code);
 
cJSON* mjrpc_process_cjson(mjrpc_handle_t* handle, const cJSON* request_cjson, int* ret_code);
 
#ifdef __cplusplus
}
#endif
 
#endif // MJSONRPC_H_