Test files for fdatasync/fsync

[kuzeyardabulut]

Description

This PR introduces two new test cases for the fsync and fdatasync syscalls. The test files have been created and tested for validity. They will help us confirm the correct operation of these syscalls.

I also fixed the warnings of the flock.c file.

fsync.c

A new C source file, fsync.c, tests the fsync system call functionality.

fdatasync.c

We've introduced a C source file, fdatasync.c, to verify the fdatasync system call.

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

To reproduce the tests, follow these steps for each system call:

Test of fsync

• Test of fsync- lind_project/tests/test_cases/fsync.c

1. Compile fsync.c in lindsh with compile tests/test_cases/fsync.c -o fsync.nexe
2. Copy test file to Lind file system with lindfs cp /home/lind/lind_project/fsync.nexe fsync.nexe
3. If all operations were successful, your file should have been copied. You can check the file with lindfs ls / command.
4. Run the test file with lind /fsync.nexe

Test of fdatasync

• Test of fdatasync - lind_project/tests/test_cases/fdatasync.c

1. Compile fdatasync.c in lindsh with compile tests/test_cases/fdatasync.c -o fdatasync.nexe
2. Copy test file to Lind file system with lindfs cp /home/lind/lind_project/fdatasync.nexe fdatasync.nexe
3. To perform the test, create a directory with the lindfs mkdir automated_tests command.
4. If all operations are successful, your file should be copied and your directory should be created. You can check the file with lindfs ls / command.
5. Run the test file with lind /fdatasync.nexe

Checklist:

• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• Any dependent changes have been added to a pull request and/or merged in other modules (native-client, lind-glibc, safeposix-rust)

[rennergade]

Looks great. Thanks for adding tests.