src/lib-dict/dict-transaction-memory.h

#ifndef DICT_TRANSACTION_MEMORY_H
#define DICT_TRANSACTION_MEMORY_H

#include "dict-private.h"

enum dict_change_type {
    DICT_CHANGE_TYPE_SET,
    DICT_CHANGE_TYPE_UNSET,
    DICT_CHANGE_TYPE_INC
};

struct dict_transaction_memory_change {
    enum dict_change_type type;
    const char *key;
    union {
        const char *str;
        long long diff;
    } value;
};

struct dict_transaction_memory_context {
    struct dict_transaction_context ctx;
    pool_t pool;
    ARRAY(struct dict_transaction_memory_change) changes;
};

void dict_transaction_memory_init(struct dict_transaction_memory_context *ctx,
                  struct dict *dict, pool_t pool);
void dict_transaction_memory_rollback(struct dict_transaction_context *ctx);

void dict_transaction_memory_set(struct dict_transaction_context *ctx,
                 const char *key, const char *value);
void dict_transaction_memory_unset(struct dict_transaction_context *ctx,
                   const char *key);
void dict_transaction_memory_atomic_inc(struct dict_transaction_context *ctx,
                    const char *key, long long diff);

#endif