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Use combined creation/modification file time stamps for sorting

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This commit is contained in:
DRracer 2020-02-14 09:09:15 +01:00
parent a10b7f3963
commit f234ef2104
2 changed files with 22 additions and 11 deletions
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29
Firmware/cardreader.cpp
View file

@ -136,8 +136,17 @@ void CardReader::lsDive(const char *prepend, SdFile parent, const char * const m
SERIAL_ECHOPGM("Access date: ");
MYSERIAL.println(p.lastAccessDate);
SERIAL_ECHOLNPGM("");*/
modificationDate = p.lastWriteDate;
modificationTime = p.lastWriteTime;
crmodDate = p.lastWriteDate;
crmodTime = p.lastWriteTime;
// There are scenarios when simple modification time is not enough (on MS Windows)
// For example - extract an old g-code from an archive onto the SD card.
// In such case the creation time is current time (which is correct), but the modification time
// stays the same - i.e. old.
// Therefore let's pick the most recent timestamp from both creation and modification timestamps
if( crmodDate < p.creationDate || ( crmodDate == p.creationDate && crmodTime < p.creationTime ) ){
crmodDate = p.creationDate;
crmodTime = p.creationTime;
}
//writeDate = p.lastAccessDate;
if (match != NULL) {
if (strcasecmp(match, filename) == 0) return;
@ -773,8 +782,8 @@ void CardReader::presort() {
// retaining only two filenames at a time. This is very
// slow but is safest and uses minimal RAM.
char name1[LONG_FILENAME_LENGTH + 1];
uint16_t modification_time_bckp;
uint16_t modification_date_bckp;
uint16_t crmod_time_bckp;
uint16_t crmod_date_bckp;
#endif
position = 0;
@ -800,8 +809,8 @@ void CardReader::presort() {
#else
// Copy filenames into the static array
strcpy(sortnames[i], LONGEST_FILENAME);
modification_time[i] = modificationTime;
modification_date[i] = modificationDate;
modification_time[i] = crmodTime;
modification_date[i] = crmodDate;
#if SDSORT_CACHE_NAMES
strcpy(sortshort[i], filename);
#endif
@ -830,8 +839,8 @@ void CardReader::presort() {
(modification_date[o1] < modification_date [o2]))
#else
#define _SORT_CMP_NODIR() (strcasecmp(name1, name2) > 0) //true if lowercase(name1) > lowercase(name2)
#define _SORT_CMP_TIME_NODIR() (((modification_date_bckp == modificationDate) && (modification_time_bckp > modificationTime)) || \
(modification_date_bckp > modificationDate))
#define _SORT_CMP_TIME_NODIR() (((crmod_date_bckp == crmodDate) && (crmod_time_bckp > crmodTime)) || \
(crmod_date_bckp > crmodDate))
#endif
@ -882,8 +891,8 @@ void CardReader::presort() {
counter++;
getfilename_simple(positions[o1]);
strcpy(name1, LONGEST_FILENAME); // save (or getfilename below will trounce it)
modification_date_bckp = modificationDate;
modification_time_bckp = modificationTime;
crmod_date_bckp = crmodDate;
crmod_time_bckp = crmodTime;
#if HAS_FOLDER_SORTING
bool dir1 = filenameIsDir;
#endif

4
Firmware/cardreader.h
View file

@ -75,7 +75,9 @@ public:
bool sdprinting ;
bool cardOK ;
char filename[13];
uint16_t modificationTime, modificationDate;
// There are scenarios when simple modification time is not enough (on MS Windows)
// Therefore these timestamps hold the most recent one of creation/modification date/times
uint16_t crmodTime, crmodDate;
uint32_t cluster, position;
char longFilename[LONG_FILENAME_LENGTH];
bool filenameIsDir;