NAME¶

SDL_StorageInterface - Function interface for SDL_Storage.

SYNOPSIS¶

#include <SDL3/SDL_storage.h>

typedef struct SDL_StorageInterface
{
    /* The version of this interface */
    Uint32 version;

    /* Called when the storage is closed */
    bool (SDLCALL *close)(void *userdata);

    /* Optional, returns whether the storage is currently ready for access */
    bool (SDLCALL *ready)(void *userdata);

    /* Enumerate a directory, optional for write-only storage */
    bool (SDLCALL *enumerate)(void *userdata, const char *path, SDL_EnumerateDirectoryCallback callback, void *callback_userdata);

    /* Get path information, optional for write-only storage */
    bool (SDLCALL *info)(void *userdata, const char *path, SDL_PathInfo *info);

    /* Read a file from storage, optional for write-only storage */
    bool (SDLCALL *read_file)(void *userdata, const char *path, void *destination, Uint64 length);

    /* Write a file to storage, optional for read-only storage */
    bool (SDLCALL *write_file)(void *userdata, const char *path, const void *source, Uint64 length);

    /* Create a directory, optional for read-only storage */
    bool (SDLCALL *mkdir)(void *userdata, const char *path);

    /* Remove a file or empty directory, optional for read-only storage */
    bool (SDLCALL *remove)(void *userdata, const char *path);

    /* Rename a path, optional for read-only storage */
    bool (SDLCALL *rename)(void *userdata, const char *oldpath, const char *newpath);

    /* Copy a file, optional for read-only storage */
    bool (SDLCALL *copy)(void *userdata, const char *oldpath, const char *newpath);

    /* Get the space remaining, optional for read-only storage */
    Uint64 (SDLCALL *space_remaining)(void *userdata);
} SDL_StorageInterface;

DESCRIPTION¶

Apps that want to supply a custom implementation of SDL_Storage will fill in all the functions in this struct, and then pass it to SDL_OpenStorage to create a custom SDL_Storage object.

It is not usually necessary to do this; SDL provides standard implementations for many things you might expect to do with an SDL_Storage.

This structure should be initialized using SDL_INIT_INTERFACE()

AVAILABILITY¶

This struct is available since SDL 3.2.0.

SEE ALSO¶

SDL_INIT_INTERFACE(3)