Commit Graph

137 Commits

Author SHA1 Message Date
sBubshait
c12cd95093 Fix issues with merging, duplicate references and definition of VM 2024-12-05 02:27:48 +00:00
sBubshait
f13fd435cd Merge remote-tracking branch 'origin/vm/page-swap-synch' into vm/virtual-memory/saleh
# Conflicts:
#	.gitlab-ci.yml
#	src/Makefile.build
#	src/threads/thread.c
#	src/userprog/exception.c
#	src/userprog/process.c
#	src/vm/frame.c
#	src/vm/page.c
#	src/vm/page.h
#	src/vm/stackgrowth.c
#	src/vm/stackgrowth.h
2024-12-05 02:21:53 +00:00
sBubshait
1a8eb1bbe5 Merge branch 'vm/memory-mapped-files' into vm/virtual-memory/saleh 2024-12-05 01:24:50 +00:00
sBubshait
f171a05108 Merge branch 'vm/stack-growth/saleh' into vm/virtual-memory/saleh
# Conflicts:
#	src/userprog/exception.c
#	src/userprog/process.c
#	src/userprog/syscall.c
#	src/vm/frame.c
#	src/vm/page.c
#	src/vm/page.h
2024-12-05 00:51:03 +00:00
Themis Demetriades
19d5b02341 fix: remove use of USERPROG compiler flag specific code when the flag is disabled 2024-12-04 23:48:51 +00:00
sBubshait
806d6bc19e Refactor: Move destroying mmap data into process_exit instead of thread 2024-12-04 21:59:38 +00:00
Themis Demetriades
723055f485 fix: only use lazy loading if VM flag is enabled 2024-12-04 21:33:21 +00:00
Themis Demetriades
1e236a5c47 Merge branch 'vm/lazy-loading' into vm/page-swap-synch 2024-12-04 19:11:37 +00:00
sBubshait
72fa0c1bbb Fix Bug: Initialise the mmap table for the newly created thread rather than the current thread 2024-12-04 17:41:14 +00:00
Themis Demetriades
4bf6914cfa feat: incorporate lazy-loading data & helpers into supplemental page table 2024-12-04 16:45:36 +00:00
sBubshait
6e838aa06a Fix Bug in thread.c: Only initialise and destroy mmap files table if VM is defined 2024-12-04 15:24:11 +00:00
sBubshait
a2f46f3b72 Add a mmap destroy function to cleanup all mmap hash table entries upon thread exit 2024-12-04 15:14:02 +00:00
sBubshait
1ce09a49a1 Add helper functions to initialise the memory-mapped files table and counter 2024-12-04 15:08:43 +00:00
sBubshait
b3042b5aa6 Update thread structure to add mmap files table and a counter for mappings of the thread 2024-12-04 14:56:52 +00:00
Demetriades, Themis
d8edc6d3fe Merge branch 'virtual-memory' into 'ethan-stack-growth'
# Conflicts:
#   src/Makefile.build
2024-11-30 23:21:16 +00:00
EDiasAlberto
5c661c2e24 Feat: pointer validation checks string across multiple pages and handle kernel page faults 2024-11-29 23:49:49 +00:00
sBubshait
14fc96febf Implement Supplemental Page Table (SPT) per thread along with structure for its entries, w/ G 2024-11-28 17:54:15 +00:00
EDiasAlberto
c74a8c55aa Implement stack growth for system calls and add stack pointer tracking to thread 2024-11-27 19:21:43 +00:00
Themis Demetriades
ea2725f606 feat: implement frame table without thread safety 2024-11-26 15:17:11 +00:00
e1f0258f8e fix: handle malloc result in init_process_result 2024-11-24 15:09:32 +00:00
8567434231 Use a single exit_status instead of two 2024-11-15 17:28:04 +00:00
sBubshait
8f82f9d747 Fix Bug in fd_counter initialisation when USERPROG is not defined 2024-11-15 16:57:16 +00:00
2566948a32 Implement hash table for child process results 2024-11-15 16:45:04 +00:00
sBubshait
6b1dbdd34f Update thread and syscall to use local fd counter instead global one, preventing overflow 2024-11-15 15:48:56 +00:00
sBubshait
6a1d10a19b Refactor synch to follow PintOS curly braces indentation style in if statements 2024-11-15 13:51:10 +00:00
dd979f34c8 Fix syn-read, syn-write, and always free elements from donors_list 2024-11-12 21:30:23 +00:00
Themis Demetriades
d878dbc132 Fix bug in userprog-merge where file writes were denied in the wrong thread 2024-11-12 16:22:32 +00:00
Demetriades, Themis
47c3657b65 Merge branch 'process-wait' into 'userprog-merge'
Fix race-condition in process result (memory leak), fix infinite loop in donors_list

See merge request lab2425_autumn/pintos_22!33
2024-11-11 22:24:39 +00:00
EDiasAlberto
98a5818406 add file_deny_write and file_allow_write to process creation and exiting to make executable read-only 2024-11-11 17:55:24 +00:00
18c884234d Fix race-condition in process result (memory leak), fix infinite loop in donors_list 2024-11-11 17:35:49 +00:00
EDiasAlberto
5b1e4b561b merge process-wait 2024-11-11 15:50:21 +00:00
sBubshait
115c650c55 Fix Bug in thread initialisation: only init hash if USERPROG is defined 2024-11-08 19:10:42 +00:00
EDiasAlberto
92e93b8060 Implement syscall for file opening and refactor open_files initialisation in thread.c w/ S. 2024-11-08 15:33:47 +00:00
sBubshait
5bd94894e0 Update thread structure to add a hash table of open files and initialise it, w/ E 2024-11-08 15:13:04 +00:00
6ed1ccd21e Fix process_result locking by acquiring in process_wait as well to prevent freeing memory too early 2024-11-08 10:50:10 +00:00
84fe637c7e Remove process_result lock since it is an invalid solution
TODO : synchronise process_result in another way
2024-11-08 09:16:18 +00:00
fde70dcf59 Implement process_wait. 2024-11-08 03:56:15 +00:00
7349b4e66f Fix typo list_insert -> list_push_back for thread.child_results 2024-11-08 03:55:34 +00:00
ec8547aec9 Implement creation of process results 2024-11-08 03:31:48 +00:00
ddcd59fdf8 Add child and own process result information to struct thread 2024-11-08 03:30:58 +00:00
Dias Alberto, Ethan
5535cbae24 Merge branch 'master' into 'system-calls'
Merge refactor and removal of duplicated code into section-specific branch

See merge request lab2425_autumn/pintos_22!25
2024-11-06 16:45:53 +00:00
sBubshait
91cef4d650 Refactor lock release and sema up to remove unnecessary code 2024-11-06 15:36:56 +00:00
sBubshait
2dccd87a76 Update thread to add exit_status, intialised to -1, into the thread structure, w/ E 2024-11-05 22:38:09 +00:00
Themis Demetriades
4066354f8a Refactor thread_create () to call thread_get_priority in order to retrieve priority 2024-10-25 17:03:18 +01:00
sBubshait
c2414ec54d Add priority_less for comparing threads based on priority and Refactor sema up to use list_max for clarity 2024-10-25 16:04:55 +01:00
sBubshait
30ab3ae861 Update thread_create to only yield CPU to the new thread if necessary 2024-10-25 15:47:19 +01:00
sBubshait
81309dcda9 Refactor sema_up to follow PintOS styling of if statements 2024-10-25 15:44:56 +01:00
6e072a557f Allow priority donation with BSD scheduler.
- Recalculate priority with donations after BSD priority updates
- Remove mlfqs checks from lock_acquire
2024-10-25 14:03:55 +01:00
093c6efd30 Re-sort ready_list when priorities update + PRI_UPDATE_FREQ
- PRI_UPDATE_FREQ is a separate value from TIME_SLICE, they just
  happen to be set the same.
2024-10-25 09:13:27 +01:00
EDiasAlberto
b88baede64 rename recent_cpu update function 2024-10-24 22:45:49 +01:00