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Add support fchstat and chstat function for littlefs #13964

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merged 7 commits into from
Oct 11, 2024
Merged

Add support fchstat and chstat function for littlefs #13964

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6b08b1c
fs/littlefs: Implement fchstat and chstat of littlefs
DS-LK Aug 24, 2021
27cdba1
fs/littlefs: Fix the bug of missing file types
DS-LK Sep 2, 2021
0925bb9
fs/littlefs: Add attr to dirA
DS-LK Sep 2, 2021
6d89f11
littlefs/stat: return OK when stat success
Donny9 Sep 6, 2021
93c9115
fs/littlefs: revert fstat and use lfs_file_attr function
DS-LK Sep 9, 2021
313f717
littlefs: fix warnings
GUIDINGLI Dec 2, 2021
76ed1d7
littlefs:remove the '/' in the end of relpath in mkdir
guohao15 Aug 6, 2024
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6 changes: 4 additions & 2 deletions fs/littlefs/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -31,8 +31,10 @@ if(CONFIG_FS_LITTLEFS)
${CMAKE_BINARY_DIR}/fs/littlefs/littlefs
PATCH_COMMAND
patch -p2 -d ${CMAKE_CURRENT_LIST_DIR} <
${CMAKE_CURRENT_LIST_DIR}/lfs_util.patch COMMAND patch -p2 -d
${CMAKE_CURRENT_LIST_DIR} < ${CMAKE_CURRENT_LIST_DIR}/lfs_getpath.patch)
${CMAKE_CURRENT_LIST_DIR}/lfs_util.patch && patch -p2 -d
${CMAKE_CURRENT_LIST_DIR} < ${CMAKE_CURRENT_LIST_DIR}/lfs_getpath.patch
&& patch -p2 -d ${CMAKE_CURRENT_LIST_DIR} <
${CMAKE_CURRENT_LIST_DIR}/lfs_getsetattr.patch)
FetchContent_MakeAvailable(littlefs)
endif()

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1 change: 1 addition & 0 deletions fs/littlefs/Make.defs
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Expand Up @@ -56,6 +56,7 @@ $(LITTLEFS_TARBALL):
$(Q) mv littlefs/littlefs-$(LITTLEFS_VERSION) littlefs/littlefs
$(Q) git apply littlefs/lfs_util.patch
$(Q) git apply littlefs/lfs_getpath.patch
$(Q) git apply littlefs/lfs_getsetattr.patch
$(Q) touch littlefs/.littlefsunpack

# Download and unpack tarball if no git repo found
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80 changes: 80 additions & 0 deletions fs/littlefs/lfs_getsetattr.patch
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@@ -0,0 +1,80 @@
--- ./littlefs/littlefs/lfs.c
+++ ./littlefs/littlefs/lfs.c
@@ -5717,6 +5717,41 @@ int lfs_file_path(lfs_t *lfs, lfs_file_t *file, char *path, lfs_size_t size) {
return err < 0 ? err : 0;
}

+lfs_ssize_t lfs_file_getattr(lfs_t *lfs, lfs_file_t *file,
+ uint8_t type, void *buffer, lfs_size_t size)
+{
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_setattr(%p, %p)", (void*)lfs, (void*)file);
+ LFS_TRACE("lfs_file_setattr(%"PRIu8", %p, %"PRIu32")",
+ type, buffer, size);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ return lfs_dir_get(lfs, &file->m, LFS_MKTAG(0x7ff, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_USERATTR + type,
+ file->id, lfs_min(size, lfs->attr_max)), buffer);
+}
+
+#ifndef LFS_READONLY
+int lfs_file_setattr(lfs_t *lfs, lfs_file_t *file,
+ uint8_t type, const void *buffer, lfs_size_t size)
+{
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_getattr(%p, %p)", (void*)lfs, (void*)file);
+ LFS_TRACE("lfs_file_getattr(%"PRIu8", %p, %"PRIu32")",
+ type, buffer, size);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ return lfs_dir_commit(lfs, &file->m, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_USERATTR + type, file->id, size), buffer}));
+}
+#endif
+
#ifndef LFS_READONLY
int lfs_mkdir(lfs_t *lfs, const char *path) {
int err = LFS_LOCK(lfs->cfg);
--- ./littlefs/littlefs/lfs.h
+++ ./littlefs/littlefs/lfs.h
@@ -611,6 +611,33 @@ lfs_soff_t lfs_file_size(lfs_t *lfs, lfs_file_t *file);
// Returns a negative error code on failure.
int lfs_file_path(lfs_t *lfs, lfs_file_t *file, char *path, lfs_size_t size);

+// Get a custom attribute of file
+//
+// Custom attributes are uniquely identified by an 8-bit type and limited
+// to LFS_ATTR_MAX bytes. When read, if the stored attribute is smaller than
+// the buffer, it will be padded with zeros. If the stored attribute is larger,
+// then it will be silently truncated. If no attribute is found, the error
+// LFS_ERR_NOATTR is returned and the buffer is filled with zeros.
+//
+// Returns the size of the attribute, or a negative error code on failure.
+// Note, the returned size is the size of the attribute on disk, irrespective
+// of the size of the buffer. This can be used to dynamically allocate a buffer
+// or check for existance.
+lfs_ssize_t lfs_file_getattr(lfs_t *lfs, lfs_file_t *file,
+ uint8_t type, void *buffer, lfs_size_t size);
+
+// Set custom attributes of file
+//
+// Custom attributes are uniquely identified by an 8-bit type and limited
+// to LFS_ATTR_MAX bytes. If an attribute is not found, it will be
+// implicitly created.
+//
+// Returns a negative error code on failure.
+#ifndef LFS_READONLY
+int lfs_file_setattr(lfs_t *lfs, lfs_file_t *file,
+ uint8_t type, const void *buffer, lfs_size_t size);
+#endif
+
/// Directory operations ///

#ifndef LFS_READONLY
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