Commit graph

26 commits

Author SHA1 Message Date
rsc efc12b8e61 Replace yield system call with sleep. 2007-08-27 13:34:35 +00:00
rsc 4bcd0f6a77 Add yield system call, for zombie test program (bad idea?). 2007-08-24 20:04:53 +00:00
rsc 224f6598c1 refactor syscall code 2006-09-07 14:13:26 +00:00
rsc 39593d2f1a struct fd -> struct file 2006-09-06 18:38:56 +00:00
rsc 42d5d65b9a renumber system calls 2006-09-06 18:19:36 +00:00
rsc 2685309fb4 split syscall.c into sysfile.c and sysproc.c 2006-09-06 18:19:11 +00:00
kaashoek 8b58e81077 i/o redirection in sh
better parsing of sh commands (copied from jos sh)
cat: read from 1 if no args
sbrk system call, but untested
getpid system call
moved locks in keyboard intr, but why do we get intr w. null characters from keyboard?
2006-08-23 01:09:24 +00:00
kaashoek 16083d4462 removed block system call
renumber system calls (run gmake clean!)
skeleton for dup system call
2006-08-20 03:08:54 +00:00
kaashoek 8787cd01df chdir
cd in shell
nits in mkdir, ls, etc.
2006-08-19 23:41:34 +00:00
kaashoek d15f0d1033 start on mkdir
stat
2006-08-14 03:00:13 +00:00
rtm 9e5970d596 link() 2006-08-13 02:12:44 +00:00
rtm 4357207237 fix getblk to actually lock the block
no more cons_put system calls
usertests tests two processes writing files
2006-08-12 11:38:57 +00:00
kaashoek 1f544842ce fstat
primitive ls
2006-08-12 04:33:50 +00:00
kaashoek 28d9ef04dd printf
convert userfs to use printf
bfree
ifree
writei
start on unlink
2006-08-10 01:28:57 +00:00
kaashoek e8d11c2e84 mknod,ialloc,iupdate 2006-08-08 18:07:37 +00:00
rtm 32630628a9 open() 2006-07-29 09:35:02 +00:00
rtm c59361f143 primitive exec 2006-07-27 21:10:00 +00:00
rsc f3d290220f add cons_puts for atomic (readable) output 2006-07-16 15:38:00 +00:00
rtm 46bbd72f3e no more recursive locks
wakeup1() assumes you hold proc_table_lock
sleep(chan, lock) provides atomic sleep-and-release to wait for condition
ugly code in swtch/scheduler to implement new sleep
fix lots of bugs in pipes, wait, and exit
fix bugs if timer interrupt goes off in schedule()
console locks per line, not per byte
2006-07-15 12:03:57 +00:00
rtm b548df152b pre-empt both user and kernel, in clock interrupt
usertest.c tests pre-emption
kill()
2006-07-11 17:39:45 +00:00
kaashoek 7837c71b32 disable all interrupts when acquiring lock
user program that makes a blocking system call
2006-07-06 21:47:22 +00:00
rtm 8b4e2a08fe swtch saves callee-saved registers
swtch idles on per-CPU stack, not on calling process's stack
fix pipe bugs
usertest.c tests pipes, fork, exit, close
2006-07-01 21:26:01 +00:00
rtm c41f1de5d4 file descriptors
pipes
2006-06-27 14:35:53 +00:00
rtm bf3903612d system call arguments 2006-06-26 15:11:19 +00:00
rtm be0a7eacda sleep, wakeup, wait, exit 2006-06-15 19:58:01 +00:00
rtm a4c03dea09 primitive fork and exit system calls 2006-06-15 16:02:20 +00:00