 sBubshait
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115c650c55
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Fix Bug in thread initialisation: only init hash if USERPROG is defined
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2024-11-08 19:10:42 +00:00 |
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sBubshait
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e40794e672
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Fix Bug in fd_get_file: In case fd not found, then returns NULL, w/ E
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2024-11-08 16:48:19 +00:00 |
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sBubshait
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8912ef4660
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Implement writing to file system files in the write system call, w/ E
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2024-11-08 16:26:47 +00:00 |
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sBubshait
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2a1cc3c361
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Implement filesize and tell system calls, w/ E
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2024-11-08 16:14:53 +00:00 |
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sBubshait
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a80084e907
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Fix Bug in fd_get_file declaration use open_file instead of file, w/ E
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2024-11-08 15:54:28 +00:00 |
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sBubshait
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5424276603
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Add a helper function to get a file from its descriptor (FD), w/ E
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2024-11-08 15:50:48 +00:00 |
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sBubshait
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5bd94894e0
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Update thread structure to add a hash table of open files and initialise it, w/ E
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2024-11-08 15:13:04 +00:00 |
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sBubshait
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5bbe7a03c0
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Add in syscall hash helper functions for open_file struct: fd_hash and fd_less, w/ E
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2024-11-08 15:12:08 +00:00 |
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sBubshait
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b112824a64
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Implement the exec system call through process_execute, w/ E
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2024-11-08 14:41:27 +00:00 |
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sBubshait
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26e38be761
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Update validate_user_pointer to check if the ptr is mapped to a physical memory address, w/ E
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2024-11-08 14:21:16 +00:00 |
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sBubshait
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39018419cd
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Fix Bug in Process.c to print the exit statement in process_exit instead of exit syscall to handle unexpected/bad exits
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2024-11-07 12:15:29 +00:00 |
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sBubshait
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6a3cf67d33
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Fix Bug in process.c initialising a char to NULL
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2024-11-07 11:55:26 +00:00 |
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sBubshait
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2bfde66d22
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Merge remote-tracking branch 'origin/user-programs-stdout' into system-calls
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2024-11-07 11:45:36 +00:00 |
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sBubshait
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fcb7e9e441
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Update setup_stack to temporarily fake set-up for a stack to prevent page faults in no arg user programs
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2024-11-06 15:48:27 +00:00 |
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sBubshait
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ab716de0a6
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Update process_wait to temporarily sleep for 1 second to allow user programs to run
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2024-11-06 15:46:47 +00:00 |
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sBubshait
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91cef4d650
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Refactor lock release and sema up to remove unnecessary code
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2024-11-06 15:36:56 +00:00 |
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sBubshait
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5aac37d167
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Add temporary fixes to process_wait and setup stack, w/ E
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2024-11-05 23:28:17 +00:00 |
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sBubshait
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02fff62ca2
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Refactor syscall.c to follow PintOS styling, w/ E
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2024-11-05 23:24:41 +00:00 |
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sBubshait
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01933cb5de
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Implement the write system call, w/ E
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2024-11-05 23:07:07 +00:00 |
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sBubshait
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e9c4061531
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Implement the exit system call, w/ E
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2024-11-05 22:38:45 +00:00 |
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sBubshait
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2dccd87a76
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Update thread to add exit_status, intialised to -1, into the thread structure, w/ E
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2024-11-05 22:38:09 +00:00 |
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sBubshait
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5e2342fad7
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Update syscall to make syscall_number an unsigned integer instead of an int
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2024-11-04 00:49:47 +00:00 |
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sBubshait
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0d057da3dc
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Refactor syscall to follow PintOS style in adding space after after function name in calls
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2024-11-04 00:48:36 +00:00 |
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sBubshait
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79f6a8e808
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Fix Bug in syscall handler related to pointer arithmetic: add sizeof uintptr_t instead of 1
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2024-11-04 00:44:55 +00:00 |
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sBubshait
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3a258cf064
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Update validate_user_pointer to perform no memory checks when size is 0
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2024-11-04 00:38:58 +00:00 |
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sBubshait
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e718159ed8
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Update syscall to use screaming uppercase casing for a constant
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2024-11-04 00:29:07 +00:00 |
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sBubshait
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ade8faf0f4
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Update syscall to add more comments explaining the basic handler
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2024-11-04 00:20:09 +00:00 |
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sBubshait
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d626b7a392
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Implement basic syscall_handler using the lookup table, w/ E
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2024-11-03 23:47:22 +00:00 |
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sBubshait
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62453ef432
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Add a look up table from system call numbers to their handler functions, w/ E
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2024-11-03 22:54:03 +00:00 |
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sBubshait
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0bf5fdb0e5
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Add syscall_function type definition for the different syscall handlers, w/ E
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2024-11-03 22:28:17 +00:00 |
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sBubshait
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c2414ec54d
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Add priority_less for comparing threads based on priority and Refactor sema up to use list_max for clarity
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2024-10-25 16:04:55 +01:00 |
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sBubshait
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30ab3ae861
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Update thread_create to only yield CPU to the new thread if necessary
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2024-10-25 15:47:19 +01:00 |
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sBubshait
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81309dcda9
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Refactor sema_up to follow PintOS styling of if statements
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2024-10-25 15:44:56 +01:00 |
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sBubshait
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4879775d0b
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Update donate priority to add an assertion that intrrupts are disabled, w/ T
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2024-10-23 16:32:40 +01:00 |
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sBubshait
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6223846fde
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Update lock_acquire to disable interrupts to eliminate race-conditions, w/ T
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2024-10-23 16:30:38 +01:00 |
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sBubshait
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d82176a2e2
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Refactor lock release to follow PintOS indent style and use list functoins, w/ T
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2024-10-22 22:52:29 +01:00 |
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sBubshait
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78c6fd36e3
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Refactor sema_up to add comments for clarity, w/ T
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2024-10-22 21:04:14 +01:00 |
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sBubshait
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5549b9c0cb
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Refactor thread recalculate priority to add comments for clarity, w/ T
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2024-10-22 20:52:52 +01:00 |
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sBubshait
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bf6104200c
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Refactor thread set priority to remove unused variable and add comment, w/ T
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2024-10-22 20:47:34 +01:00 |
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sBubshait
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244db41434
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Update condvar to use linear search due to changes in priority from donations, w/ T
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2024-10-22 20:25:13 +01:00 |
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sBubshait
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d9b9572631
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Fix Bug in recalculating priority, uses 'elem' instead of 'donor_elem', w/ T
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2024-10-22 19:49:53 +01:00 |
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sBubshait
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7f7b1648cd
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Fix indentation in recalculate priority to match pintos style, w/ T
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2024-10-20 22:28:29 +01:00 |
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sBubshait
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44de31c0ff
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Fix Bug in Implementation of recalculate priority setting base priority, w/ T
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2024-10-20 20:54:48 +01:00 |
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sBubshait
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b1dba1a0bd
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Add implementation for recalculate effective priority, w/ T
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2024-10-20 20:37:03 +01:00 |
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sBubshait
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343ac55d37
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Implement priority donation helper function with propagation, w/ T
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2024-10-20 19:42:35 +01:00 |
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sBubshait
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5a651f1279
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Update implementation of thread set priority to account for donations, w/ T
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2024-10-20 18:06:07 +01:00 |
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sBubshait
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8b1e0b9559
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Add donation-related information to the thread structure, w/ T
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2024-10-20 17:04:14 +01:00 |
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sBubshait
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bfdedc53e2
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Update set priority so not to yield if no ready threads
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2024-10-17 19:46:10 +01:00 |
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sBubshait
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c9a9d57019
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Merge branch 'task1/priority-scheduling' into task1/merged/priority-scheduling
# Conflicts:
# .gitignore
# src/threads/synch.c
# src/threads/thread.c
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2024-10-17 19:30:19 +01:00 |
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sBubshait
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88967acdaa
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Update cond_wait to insert into waiters list in sorted order of priority
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2024-10-17 08:53:53 +01:00 |
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sBubshait
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e74ee59e17
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Update sema priority compare to take aux optionally as priority of first sema
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2024-10-17 08:46:14 +01:00 |
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sBubshait
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53b296d6c4
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Add function to compare the priority of two semaphores
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2024-10-17 08:36:29 +01:00 |
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sBubshait
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0d6fb2f167
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Update sema_up to yield CPU if unblocked has higher priority
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2024-10-17 07:15:10 +01:00 |
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sBubshait
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24900545d4
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Update sema_down to insert into waiters list in priority sorted order
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2024-10-17 06:54:10 +01:00 |
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sBubshait
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fb268cdef0
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Update thread make priority_more public
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2024-10-17 06:47:58 +01:00 |
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sBubshait
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dbb7fd56e3
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Update set priority to reorder the list if priority is changed
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2024-10-17 06:38:27 +01:00 |
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sBubshait
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949455aae5
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Update set priority to eliminate race condition when accessing ready list
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2024-10-17 06:35:39 +01:00 |
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sBubshait
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5c09ff0149
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Updated set priority to yield if priority is lowered
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2024-10-17 06:27:59 +01:00 |
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sBubshait
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9f53040d27
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Update thread_set_priority to not do anything if priority is unchanged
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2024-10-17 06:00:34 +01:00 |
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sBubshait
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62c8818c05
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Update thread_yield to add thread back in sorted order of priority
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2024-10-16 08:18:51 +01:00 |
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sBubshait
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fda79173c0
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Update thread_unblock to maintain priority order in ready_list
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2024-10-16 08:14:00 +01:00 |
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sBubshait
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1c53790ca7
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Update set_priority to ensure that the new priority is within bounds
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2024-10-16 08:13:56 +01:00 |
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sBubshait
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9bb0b758c8
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Fix Error missing semicolon after function signature
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2024-10-16 07:40:41 +01:00 |
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sBubshait
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8b3f9e353f
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Update creating thread to yield if the new thread has higher priority
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2024-10-16 07:33:24 +01:00 |
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sBubshait
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83910f945c
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Add priority comparator function for thread list sorting
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2024-10-16 07:26:02 +01:00 |
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sBubshait
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9f71c989a9
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Update gitignore to ignore temporary Mac OS files and code editor folders
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2024-10-16 07:10:31 +01:00 |
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sBubshait
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a28bae3ad1
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Add Contributing Guidelines for Group Collaboration
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2024-10-15 04:30:59 +01:00 |
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