drpc_struct.h

#pragma once

#include "drpc_types.h"
#include "hashtable.c/hashtable.h"


struct d_struct{
    pthread_mutex_t lock;

    hashtable* hashtable;
    size_t current_len;   //ammount of elements in d_struct currently

    struct drpc_que* heap_keys;
};

struct d_struct_element{
    void* data; //may be packed type or may be a pointer(d_sizedbuf, d_struct, d_array, d_struct); d_sizedbuf and d_str are copyed on setting
    char is_packed; //used for simpler detection of pointer types
    char type;

    size_t sizedbuf_len;
};


struct d_struct* new_d_struct();

void d_struct_set(struct d_struct* dstruct,char* key, void* native_type, enum drpc_types type,...);
                    /*
                    * key         -- name of field to set
                    * native_type -- pointer to native C type that will be pushed
                    * type        -- type of native_type, used to serilialize-deserialize
                    * ...         -- used with d_sizedbuf type, used as d_sizedbuf len
                    */
int d_struct_get(struct d_struct* dstruct,char* key, void* native_type, enum drpc_types type,...);
                    /*
                    * key         -- name of field to get
                    * native_type -- pointer to memory where this type will be written
                    * type        -- type of native_type, used to serilialize-deserialize them
                    * ...         -- used with d_sizedbuf type, used as d_sizedbuf len output pointer
                    */

int d_struct_unlink(struct d_struct* dstruct, char* key, enum drpc_types type);
                    /*
                     * remove this entry from hashtable but dont free data
                     */

void d_struct_free(struct d_struct* dstruct);

int d_struct_remove(struct d_struct* dstruct, char* key); //remove entry and free it

void d_struct_free_internal(struct d_struct* dstruct);

size_t d_struct_fields(struct d_struct* dstruct, char*** keys, enum drpc_types** types);

char* d_struct_buf(struct d_struct* dstruct, size_t* buflen);
void buf_d_struct(char* buf, struct d_struct* dstruct);