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storage: enumerate and glob on storage can accept a NULL path.

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This will be treated as the root of the storage tree.
This commit is contained in:
Ryan C. Gordon 2025-01-17 20:04:27 -05:00
parent a6a8598b98
commit 010f27dc70
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GPG key ID: FA148B892AB48044
2 changed files with 16 additions and 7 deletions
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10
include/SDL3/SDL_storage.h
View file

@ -543,8 +543,11 @@ extern SDL_DECLSPEC bool SDLCALL SDL_CreateStorageDirectory(SDL_Storage *storage
* returned SDL_ENUM_SUCCESS to halt enumeration, or all directory entries * returned SDL_ENUM_SUCCESS to halt enumeration, or all directory entries
* were enumerated. * were enumerated.
* *
* If `path` is NULL, this is treated as a request to enumerate the root of
* the storage container's tree. An empty string also works for this.
*
* \param storage a storage container. * \param storage a storage container.
* \param path the path of the directory to enumerate. * \param path the path of the directory to enumerate, or NULL for the root.
* \param callback a function that is called for each entry in the directory. * \param callback a function that is called for each entry in the directory.
* \param userdata a pointer that is passed to `callback`. * \param userdata a pointer that is passed to `callback`.
* \returns true on success or false on failure; call SDL_GetError() for more * \returns true on success or false on failure; call SDL_GetError() for more
@ -646,8 +649,11 @@ extern SDL_DECLSPEC Uint64 SDLCALL SDL_GetStorageSpaceRemaining(SDL_Storage *sto
* convenience, but if `count` is non-NULL, on return it will contain the * convenience, but if `count` is non-NULL, on return it will contain the
* number of items in the array, not counting the NULL terminator. * number of items in the array, not counting the NULL terminator.
* *
* If `path` is NULL, this is treated as a request to enumerate the root of
* the storage container's tree. An empty string also works for this.
*
* \param storage a storage container. * \param storage a storage container.
* \param path the path of the directory to enumerate. * \param path the path of the directory to enumerate, or NULL for the root.
* \param pattern the pattern that files in the directory must match. Can be * \param pattern the pattern that files in the directory must match. Can be
* NULL. * NULL.
* \param flags `SDL_GLOB_*` bitflags that affect this search. * \param flags `SDL_GLOB_*` bitflags that affect this search.

13
src/storage/SDL_storage.c
View file

@ -284,8 +284,10 @@ bool SDL_EnumerateStorageDirectory(SDL_Storage *storage, const char *path, SDL_E
CHECK_STORAGE_MAGIC() CHECK_STORAGE_MAGIC()
if (!path) { if (!path) {
return SDL_InvalidParamError("path"); path = ""; // we allow NULL to mean "root of the storage tree".
} else if (!ValidateStoragePath(path)) { }
if (!ValidateStoragePath(path)) {
return false; return false;
} else if (!storage->iface.enumerate) { } else if (!storage->iface.enumerate) {
return SDL_Unsupported(); return SDL_Unsupported();
@ -396,9 +398,10 @@ char **SDL_GlobStorageDirectory(SDL_Storage *storage, const char *path, const ch
CHECK_STORAGE_MAGIC_RET(NULL) CHECK_STORAGE_MAGIC_RET(NULL)
if (!path) { if (!path) {
SDL_InvalidParamError("path"); path = ""; // we allow NULL to mean "root of the storage tree".
return NULL; }
} else if (!ValidateStoragePath(path)) {
if (!ValidateStoragePath(path)) {
return NULL; return NULL;
} }