serialization.c

// A serializer prototype - you serialize by calling Write N times.
// the key type is determined on registration so not needed here
// the list size will be determined by redis when you exit, based on the number of times you called write()
int (*Serialize)(RedisModuleCtx *ctx,  RedisModuleObjectWriter *out, RedisModuleKey *k)

// you deserialize by calling Read and reading one object at a time. 
// numElements is passed so the user can preallocate stuff in advance
int (*Deserialize)(RedisModuleCtx *ctx, RedisModuleObjectReader *in, RedisModuleString *keyName, size_t numElements)

// reader/writer methods - each one reads or writes a complete object
int ObjectWriter_Write(RedisModuleObjectWriter *w, char *data, size_t len);
int ObjectReader_Read(RedisModuleObjectReader *r, char **data, size_t &len);

// we can add higher level write/read utils, e.g.:
int ObjectWriter_WriteInt64(RedisModuleObjectWriter, int_64_t i);
int ObjectWriter_WriteVarint(RedisModuleObjectWriter, int_64_t i);
.. etc etc - not sure if needed