9,644 questions
0
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ESP32 SD card write error: errno 22 (Invalid argument) when using fopen
I am trying to write data to an SD card on an ESP32-WROOM. My function for file creation is:
bool create_file(const char *file_path, const char *data)
{
if (!file_path || !data) {
printf(&...
- 81
-4
votes
0
answers
63
views
How can I emulate Linux secure delete (shred, dd, wipe) on Windows? [closed]
On Linux, tools like shred, dd, or wipe can securely delete files or even overwrite an entire disk to make data unrecoverable.
On Windows, the normal delete just removes file references, and the data ...
0
votes
1
answer
17
views
Generic/multi-FS alternative to the XFS_IOC_RESVSP64 ioctl?
The XFS filesystem has (or used to have) a IOCTL named XFS_IOC_RESVSP64 for reserving space: You called it with a given file descriptor, and the XFS driver reserved an amount of space use by for your ...
- 136k
-2
votes
0
answers
22
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Why do NFS-backed files remain visible in a VM after host umount when shared via virtiofs? [closed]
I am curious about the behavior of Virtual Machine.
Environment
There are two computers.
192.168.180.10: NFS Server
Rocky Linux 9.6
192.168.160.30: VDSM Host (NFS Client)
Rocky Linux 9.6
VDSM ...
- 489
-2
votes
0
answers
49
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How to recover files from LUKS partition of Ubuntu that when unlocked is empty [closed]
Idea messed around with the mounting options of my Ubuntu OS, I have since backed up the LUKS partition to a IMG file.
When I luksOpen it, I am able to mount the LVM2 member on a live Ubuntu however ...
-1
votes
1
answer
66
views
How to block a windows ReadFile call
I have a requirement that a single ReadFile call on a specific NTFS file blocks until I explicitly permit it to proceed from another thread. I attempted to accomplish this by obtaining an exclusive ...
- 1
1
vote
0
answers
94
views
Is it possible to a create a looped directory structure without any of the folders having a Reparse attribute and each folder having a unique File Id
I have come across a network share path, say \\Server\Share\Loop\Loop\Loop, where the directory structure is looping but the folder Loop has the attribute DIRECTORY (0x10) and not DIRECTORY+REPARSE (...
- 163
1
vote
1
answer
113
views
TypeScript solution for managing filesystem path structure
This question is all about a good TypeScript solution for managing all your paths of your filesystem structure.
When I came across web-based local applications or website backend pages, to manage the ...
- 21
1
vote
0
answers
44
views
How can I determine the max filename length on Windows network drive which may or may not be NTFS?
I'm on Windows and need to programmatically determine the maximum filename length allowed on any given volume. I'm having a problem with a network drive that is mapped to a btrfs volume on a NAS.
...
- 21
0
votes
1
answer
44
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/usr/bin/time -v on cached file : why are file inputs showing as non zero?
My program reads from a file that is already in the page cache
cat foo >> /dev/null
I run /usr/bin/time -v on it and I still see file inputs is not zero, AND it increases
as I read more of the ...
- 13.3k
1
vote
2
answers
79
views
Is there a way to ignore specific subfolders when using DirectoryInfo.EnumerateFiles without manual recursion?
I'm using the following code to get all files of given extensions inside a folder with it's respective subfolders.
string path = "C:\\FolderA\\FolderB\\FolderC\\FolderD";
List<string> ...
- 167
0
votes
0
answers
102
views
How to implement recursive folder processing in Power Automate to handle dynamic folder depths?
I am working on a Power Automate solution to mirror the contents of a network drive (using the File System connector via on-premises data gateway) into a SharePoint document library.
The folder I want ...
- 310
0
votes
0
answers
19
views
code build errors with mcuboot and mass storage: nRF52840
I am trying to implement DFU(with USB&BLE) and USB Mass Storage with FAT FS filesystems on external QSPI flash. I am getting the following build errors- with SDK version 2.9.0
without mcuboot ...
6
votes
1
answer
325
views
How to ensure file system is updated when modifying files on a USB drive
I've been working on an Android app that moves files on and off a connected USB drive. For moving, the basic code I'm using is:
file.copyRecursively(File(target, file.name), overwrite = true)
file....
- 4,228
1
vote
1
answer
78
views
How to design an embedded code that can handle three types of connections: MQTT, TCP sync and TCP async? Fail considerations
Our system is running on FreeRTOS. The server sends our device operation requests (via MQTT, TCP sync, TCP aysnc) and some operations have different number of steps/states.
Scenario 1:
Server ...
- 577