Questions tagged [file-handling]
File handling refers to the set of tools, functions, and libraries to work with files and file handles. Creating, writing, appending, moving, and deleting files fall in this domain.
168
questions
2
votes
2
answers
99
views
How to Design a Secure Script for Conditional File Access Based on Time and API Conditions?
I want to create a secure script that grants access to files based on specific conditions. The access should be controlled by both time-based and API-based conditions. The script should only allow ...
- 33
10
votes
8
answers
6k
views
What is the advantage of log file rotation based on file size?
I understand that log file rotation is changing the log file you used when (1) one gets big enough or (2) at EOD, but I'm not sure I understand the reason for (1). I have never had any issues with ...
- 245
0
votes
2
answers
149
views
Allow-Rendering-Prevent-Download Architecture
I am trying to devise a simple system that, with the use of tokens, allows a specific file to be rendered in the client's browser, yet prevents the user agent from being able to download the file. ...
- 103
0
votes
5
answers
219
views
Load and process (compressed) data from filesystem in the blink of an eye
We have a huge amount of queries hitting our API that request a minor or major extract of some huge files lying around on our mounted hard drives. The data needs to be extracted from the files and ...
- 419
2
votes
1
answer
94
views
What are some architectures and designs I could use to optimize the performance of file text data lookups?
I would like to write a program that essentially handles text data and metadata of files locally on a machine's filesystem. There is no need for any network activity. I am working with large ...
- 1,152
0
votes
3
answers
713
views
Folder structure to store image/file uploads
I'm working on a system and we need to do some refactoring on the upload service, that handles all files and images uploads to the system. Nothing fancy, but I it got me thinking about the folder ...
- 291
6
votes
3
answers
2k
views
Checking if a file exists before writing. Always avoid, or sensible with the right use case?
There are few reliable absolutes in this world. One I have relied on is the idea that checking if a file exists before doing something with it just creates an unwanted race condition. Meaning between ...
- 111k
0
votes
1
answer
147
views
Selecting the endianness of data in files generated by an embedded system
I have an embedded system running on a little-endian Cortex-M3. This system is able to accept packets from the network and reply to them. Now, I would like the system to start generating files. These ...
- 2,109
0
votes
1
answer
76
views
Regrouping several application files into one
I am working on a C++ application which lets users work on projects.
Each project consists of several files that should not be known / edited manually by the user.
For that we currently use a folder ...
- 1,040
1
vote
1
answer
92
views
How best to keep Excel Workbook field in sync across class instances
I know almost nothing about threads, synchronization, ...
That being said, I am working on a record handler, that hits Excel sheet to pull/push data. There exist, in my code base, a BaseRecordHandler, ...
- 322
-1
votes
2
answers
872
views
Dealing with multiple application instances
I'm developing an application (Java & JavaFX) that writes/reads data (a file). The problem is I don't want to restrict user to run only one instance (of my app) at a time, as I really can't think ...
- 33
0
votes
2
answers
99
views
Transferring data from 1 web app into another offline
I have a web app that will be used locally on 2 different site. The program is a Vue web app made with node.js and express, using MySQL database. Due to limitation (no internet in site 1), there is no ...
- 19
1
vote
1
answer
1k
views
How does resuming downloads work?
I have seen download managers manage to resume HTTP downloads from where they stopped. How are they able to resume downloads? Is it related to the Accept-Range Header? Or are there other mechanisms ...
- 119
0
votes
1
answer
420
views
Efficient way to separate text file to header, tail lines and the leftover in between
I'm looking for a more efficient algorithm for the following problem:
The input of the algorithm is a text file and two non-negative integer numbers - the number of headers and the number of tails.
...
- 111
0
votes
1
answer
815
views
Constantly writing a JSON file [closed]
I need to write continuously into a JSON file in C++. The format and structure are defined as requirement. The data is produced in the process itself and needs to be stored multiple times per second. ...
- 27