Themis Demetriades
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52fdd47e0c
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Fix race condition in the passing of data from thread executing process_execute to its child
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2024-11-11 21:51:38 +00:00 |
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Themis Demetriades
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049fc5559c
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Reformat stack initialization code to follow style for length and spacing
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2024-11-11 21:20:53 +00:00 |
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EDiasAlberto
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98a5818406
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add file_deny_write and file_allow_write to process creation and exiting to make executable read-only
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2024-11-11 17:55:24 +00:00 |
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18c884234d
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Fix race-condition in process result (memory leak), fix infinite loop in donors_list
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2024-11-11 17:35:49 +00:00 |
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EDiasAlberto
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5b1e4b561b
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merge process-wait
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2024-11-11 15:50:21 +00:00 |
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Themis Demetriades
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b8d358ecb2
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Update stack initialization to handle overflow by allocating a second page for argument pointers
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2024-11-11 13:13:21 +00:00 |
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Themis Demetriades
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8b2fc86b51
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Refactor process_init_stack to reduce code duplication
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2024-11-10 14:34:38 +00:00 |
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Themis Demetriades
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324301e7b3
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Update process_execute function comment to reflect new function arguments
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2024-11-10 13:43:22 +00:00 |
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Themis Demetriades
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0ac46db2e4
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Refactor process initialization to obtain name of process file in process_execute
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2024-11-10 13:41:08 +00:00 |
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Themis Demetriades
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795d81b7ad
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Update process_init_tack saveptr argument name to cmd_savetpr for clarity
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2024-11-10 11:33:29 +00:00 |
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Themis Demetriades
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6018c0f6ec
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Refactor process_init_stack to not surpass 80 character limit
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2024-11-10 11:25:20 +00:00 |
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Themis Demetriades
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f0dae74cf3
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Update stack initialization alignment calculation to use WORD_SIZE constant for clarity
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2024-11-10 11:24:51 +00:00 |
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Themis Demetriades
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a165107f5f
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Update process execution related function argument names to be more accurate
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2024-11-10 11:17:22 +00:00 |
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Themis Demetriades
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b37f205334
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Update process_init_stack to return success, refactoring error handling to occur inside start_process
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2024-11-10 11:13:11 +00:00 |
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EDiasAlberto
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1bfd73b202
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Comment syscall functions and handlers
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2024-11-10 01:32:58 +00:00 |
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7778e05aa4
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Fix deadlock by release of lock and semaphore in the wrong order
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2024-11-09 11:06:36 +00:00 |
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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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Themis Demetriades
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5ed999bc9c
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Refactor push_to_stack helper to match style of other helper functions
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2024-11-08 16:53:30 +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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Themis Demetriades
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a19f02fad7
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Move user process stack initialization into a helper function
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2024-11-08 16:46:18 +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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EDiasAlberto
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18694d7b62
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Implement file reading syscall and fix fd validation w/ S.
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2024-11-08 16:25:49 +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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EDiasAlberto
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3cfbe198e0
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Implement syscall for seek w/ S.
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2024-11-08 16:10:46 +00:00 |
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EDiasAlberto
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75bd3fbde0
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Implement syscall for close() and fix typing bug in fd_get_file w/ S.
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2024-11-08 16:02:51 +00:00 |
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Themis Demetriades
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b866fa88cd
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Refactor process.c to use FNAME_MAX_LEN constant
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2024-11-08 15:54:47 +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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Themis Demetriades
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b64434fb9d
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Move definition of maximum file name length from <syscall> to file.h
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2024-11-08 15:41:35 +00:00 |
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EDiasAlberto
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92e93b8060
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Implement syscall for file opening and refactor open_files initialisation in thread.c w/ S.
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2024-11-08 15:33:47 +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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EDiasAlberto
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dca9d8f5a3
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Implement syscall for file removal w/ S.
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2024-11-08 14:35:23 +00:00 |
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EDiasAlberto
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a8676f2e09
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Implement syscall for file creation, with relevant locks w/ S.
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2024-11-08 14:34:08 +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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6ed1ccd21e
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Fix process_result locking by acquiring in process_wait as well to prevent freeing memory too early
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2024-11-08 10:50:10 +00:00 |
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84fe637c7e
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Remove process_result lock since it is an invalid solution
TODO : synchronise process_result in another way
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2024-11-08 09:16:18 +00:00 |
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d95894085b
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Implement syscall_exec via process_execute
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2024-11-08 09:15:22 +00:00 |
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fde70dcf59
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Implement process_wait.
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2024-11-08 03:56:15 +00:00 |
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7349b4e66f
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Fix typo list_insert -> list_push_back for thread.child_results
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2024-11-08 03:55:34 +00:00 |
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ec8547aec9
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Implement creation of process results
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2024-11-08 03:31:48 +00:00 |
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ddcd59fdf8
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Add child and own process result information to struct thread
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2024-11-08 03:30:58 +00:00 |
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Demetriades, Themis
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ed09e0b08e
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Merge branch 'system-calls' into 'master'
Add support for some basic system calls and args handling correctly.
See merge request lab2425_autumn/pintos_22!29
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2024-11-07 19:36:29 +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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Themis Demetriades
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273fb48b31
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Fix stack initialization to pass stack addreses (rather than thread addresses) for the arguments and only pass name a single time
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2024-11-07 00:40:52 +00:00 |
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Themis Demetriades
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26ae7ac02e
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Fix bug in stack creation which would count one extra argument for argc
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2024-11-06 23:57:48 +00:00 |
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Themis Demetriades
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1ca9d09512
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Update exit () syscall to print correct termination message
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2024-11-06 23:01:10 +00:00 |
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