Implement ps #1

Make-IT-Wright · 2023-03-20T12:45:45Z

Implemented the following:

a ps() system call that returns information about processes known by the kernel
a ps user program that calls the ps system call and outputs information about processes known by the kernel
a longRunner user program that runs for a long time so that ps has something to output information about

try

longRunner &
ps

…t processes

Make-IT-Wright · 2023-03-20T12:47:07Z

proc.c

@@ -520,17 +550,9 @@ kill(int pid)
 void
 procdump(void)
 {
-  static char *states[] = {


Moved these definitions to top of file because now used in more than one function

Make-IT-Wright · 2023-03-20T12:47:58Z

ps.c

@@ -2,10 +2,25 @@
 #include "stat.h"
 #include "user.h"

+static struct procInfo arrayOfProcInfo[1024];
+static const char * const states[] = {


Used to convert enum values into human readable words

Make-IT-Wright added 10 commits March 10, 2023 15:28

Implemented return of process information from kernel to calling process

50d2a00

Document procInfo struct used to return information to calling program

1f4b6c7

Added simple long running program to help test ps

13901dd

Added simple long running program to help test ps

68ad61b

Added procInfo struct used to return information to calling program

9443b1e

Added proc_ps to return information about processes to user program

61094c5

Added ps program make system call and output information about curren…

e485e5e

…t processes

Added kernel side of system call, ps

b308925

Defined struct procInfo used inside the kernel and by user program, ps

47ac0cf

Defined ps system call

498cab6

Make-IT-Wright self-assigned this Mar 20, 2023

Make-IT-Wright merged commit 69cb5b1 into master Mar 20, 2023

Make-IT-Wright commented Mar 20, 2023

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