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Clarify SD longname string size (#14148)

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Robby Candra 2019-05-28 07:50:48 +07:00 committed by Scott Lahteine
parent 5f42d3a8b4
commit 5515f88452
2 changed files with 16 additions and 11 deletions
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16
Marlin/src/sd/cardreader.cpp
View file

@ -81,10 +81,10 @@ uint8_t CardReader::workDirDepth;
char **CardReader::sortshort, **CardReader::sortnames;
#else
char CardReader::sortshort[SDSORT_LIMIT][FILENAME_LENGTH];
char CardReader::sortnames[SDSORT_LIMIT][SORTED_LONGNAME_MAXLEN];
char CardReader::sortnames[SDSORT_LIMIT][SORTED_LONGNAME_STORAGE];
#endif
#elif DISABLED(SDSORT_USES_STACK)
char CardReader::sortnames[SDSORT_LIMIT][SORTED_LONGNAME_MAXLEN];
char CardReader::sortnames[SDSORT_LIMIT][SORTED_LONGNAME_STORAGE];
#endif
#if HAS_FOLDER_SORTING
@ -760,11 +760,13 @@ void CardReader::setroot() {
#endif
#else
// Copy filenames into the static array
#if SORTED_LONGNAME_MAXLEN != LONG_FILENAME_LENGTH
#define SET_SORTNAME(I) do{ strncpy(sortnames[I], longest_filename(), SORTED_LONGNAME_MAXLEN); \
sortnames[I][SORTED_LONGNAME_MAXLEN] = '\0'; }while(0)
#define _SET_SORTNAME(I) strncpy(sortnames[I], longest_filename(), SORTED_LONGNAME_MAXLEN)
#if SORTED_LONGNAME_MAXLEN == LONG_FILENAME_LENGTH
// Short name sorting always use LONG_FILENAME_LENGTH with no trailing nul
#define SET_SORTNAME(I) _SET_SORTNAME(I)
#else
#define SET_SORTNAME(I) strncpy(sortnames[I], longest_filename(), SORTED_LONGNAME_MAXLEN)
// Copy multiple name blocks. Add a nul for the longest case.
#define SET_SORTNAME(I) do{ _SET_SORTNAME(I); sortnames[I][SORTED_LONGNAME_MAXLEN] = '\0'; }while(0)
#endif
#if ENABLED(SDSORT_CACHE_NAMES)
#define SET_SORTSHORT(I) strcpy(sortshort[I], filename)
@ -816,7 +818,7 @@ void CardReader::setroot() {
sortnames = new char*[fileCnt];
#endif
#elif ENABLED(SDSORT_USES_STACK)
char sortnames[fileCnt][SORTED_LONGNAME_MAXLEN];
char sortnames[fileCnt][SORTED_LONGNAME_STORAGE];
#endif
// Folder sorting needs 1 bit per entry for flags.

11
Marlin/src/sd/cardreader.h
View file

@ -175,9 +175,11 @@ private:
#endif
#if BOTH(SDSORT_USES_RAM, SDSORT_CACHE_NAMES) && DISABLED(SDSORT_DYNAMIC_RAM)
#define SORTED_LONGNAME_MAXLEN ((SDSORT_CACHE_VFATS) * (FILENAME_LENGTH) + 1)
#define SORTED_LONGNAME_MAXLEN (SDSORT_CACHE_VFATS) * (FILENAME_LENGTH)
#define SORTED_LONGNAME_STORAGE (SORTED_LONGNAME_MAXLEN + 1)
#else
#define SORTED_LONGNAME_MAXLEN LONG_FILENAME_LENGTH
#define SORTED_LONGNAME_STORAGE SORTED_LONGNAME_MAXLEN
#endif
// Cache filenames to speed up SD menus.
@ -189,10 +191,11 @@ private:
static char **sortshort, **sortnames;
#else
static char sortshort[SDSORT_LIMIT][FILENAME_LENGTH];
static char sortnames[SDSORT_LIMIT][SORTED_LONGNAME_MAXLEN];
#endif
#elif DISABLED(SDSORT_USES_STACK)
static char sortnames[SDSORT_LIMIT][SORTED_LONGNAME_MAXLEN];
#endif
#if (ENABLED(SDSORT_CACHE_NAMES) && DISABLED(SDSORT_DYNAMIC_RAM)) || NONE(SDSORT_CACHE_NAMES, SDSORT_USES_STACK)
static char sortnames[SDSORT_LIMIT][SORTED_LONGNAME_STORAGE];
#endif
// Folder sorting uses an isDir array when caching items.