系統程式第 9 週 -- 簽到討論區

ccckmit commented 2 years ago

終端機 1

(base) $ gcc forever.c -o forever
(base) $ ./forever
^C
(base) $ ps
  PID TTY           TIME CMD
  720 ttys000    0:00.01 /bin/bash -l
  756 ttys001    0:00.01 /bin/bash -l
  855 ttys002    0:00.02 /bin/bash -l
33663 ttys003    0:00.02 -bash
33687 ttys004    0:00.02 /bin/bash -l
(base) $ ps
  PID TTY           TIME CMD
33663 ttys003    0:00.02 -bash
33687 ttys004    0:00.02 /bin/bash -l
(base) $ ./forever
Terminated: 15

終端機 2

(base) $ ps
  PID TTY           TIME CMD
33663 ttys003    0:00.02 -bash
33687 ttys004    0:00.02 /bin/bash -l
33827 ttys004    0:10.42 ./forever
33833 ttys005    0:00.01 /bin/bash -l
(base) $ kill 33827

forever.c

(base) $ ./forever
^C
(base) $ ./forever &
[1] 34225
(base) $ ps
  PID TTY           TIME CMD
34190 ttys000    0:00.01 /bin/bash -l
34225 ttys000    0:05.99 ./forever
33663 ttys003    0:00.02 -bash
34045 ttys006    0:00.02 /bin/bash -l
(base) $ ./forever &
[2] 34242
(base) $ ps
  PID TTY           TIME CMD
34190 ttys000    0:00.01 /bin/bash -l
34225 ttys000    0:18.68 ./forever
34242 ttys000    0:04.94 ./forever
33663 ttys003    0:00.02 -bash
34045 ttys006    0:00.02 /bin/bash -l
(base) $ ./forever &
[3] 34257
(base) $ ps
  PID TTY           TIME CMD
34190 ttys000    0:00.02 /bin/bash -l
34225 ttys000    0:40.43 ./forever
34242 ttys000    0:26.66 ./forever
34257 ttys000    0:04.55 ./forever
33663 ttys003    0:00.02 -bash
34045 ttys006    0:00.02 /bin/bash -l
(base) $ kill 34225
(base) $ ps
  PID TTY           TIME CMD
34190 ttys000    0:00.02 /bin/bash -l
34242 ttys000    0:38.87 ./forever
34257 ttys000    0:16.78 ./forever
33663 ttys003    0:00.02 -bash
34045 ttys006    0:00.02 /bin/bash -l
[1]   Terminated: 15          ./forever
(base) $ kill 34242
(base) $ ps
  PID TTY           TIME CMD
34190 ttys000    0:00.02 /bin/bash -l
34257 ttys000    0:25.33 ./forever
33663 ttys003    0:00.02 -bash
34045 ttys006    0:00.02 /bin/bash -l
[2]-  Terminated: 15          ./forever
(base) $ kill 34257
(base) $ ps
  PID TTY           TIME CMD
34190 ttys000    0:00.02 /bin/bash -l
33663 ttys003    0:00.02 -bash
34045 ttys006    0:00.02 /bin/bash -l
[3]+  Terminated: 15          ./forever
(base) $ ps
  PID TTY           TIME CMD
34190 ttys000    0:00.02 /bin/bash -l
33663 ttys003    0:00.02 -bash
34045 ttys006    0:00.02 /bin/bash -l

sp/09-posix/02-thread/georgeMary.c

(base) $ gcc georgeMary.c -o georgeMary -lpthread
(base) $ ./georgeMary
----------------
George
Mary
----------------
George
Mary
----------------
George
----------------
George
Mary

/sp/09-posix/02-thread/race.c

(base) $ gcc race.c -o race -lpthread
(base) $ ./race
counter=4484060
(base) $ ./race
counter=-4016974
(base) $ ./race
counter=-3538358

norace.c

(base) $ gcc norace.c -o norace
(base) $ ./norace
counter=0
(base) $ ./norace
counter=0
(base) $ ./norace
counter=0
(base) $ ./norace
counter=0

deadlock.c

C# 程式進階：作業系統與 Thread

base) $ gcc deadlock.c -o deadlock
(base) $ ./deadlock
A lock x
B lock y

(base) $ gcc -w philospher.c -o philospher
(base) $ ./philospher 
Switch=false
 Think 0 1
 Eat 0 1
    Think 1 1
 Think 0 2
    Eat 1 1
        Think 2 1
 Eat 0 2
    Think 1 2
        Eat 2 1
 Think 0 3
    Eat 1 2
        Think 2 2
 Eat 0 3
    Think 1 3
        Eat 2 2
 Think 0 4
    Eat 1 3
        Think 2 3
 Eat 0 4
    Think 1 4
        Eat 2 3
 Think 0 5
    Eat 1 4
        Think 2 4
 Eat 0 5
    Think 1 5
        Eat 2 4
    Eat 1 5
        Think 2 5
        Eat 2 5