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| author | Robert Morris <rtm@csail.mit.edu> | 2019-06-11 09:57:14 -0400 |
|---|---|---|
| committer | Robert Morris <rtm@csail.mit.edu> | 2019-06-11 09:57:14 -0400 |
| commit | 5753553213df8f9de851adb68377db43faecb91f (patch) | |
| tree | 3b629ff54897fca414146677532cb459a2ed11ba /sysproc.c | |
| parent | 91ba81110acd3163f7de3580b677eece0c57f5e7 (diff) | |
| download | xv6-labs-5753553213df8f9de851adb68377db43faecb91f.tar.gz xv6-labs-5753553213df8f9de851adb68377db43faecb91f.tar.bz2 xv6-labs-5753553213df8f9de851adb68377db43faecb91f.zip | |
separate source into kernel/ user/ mkfs/
Diffstat (limited to 'sysproc.c')
| -rw-r--r-- | sysproc.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/sysproc.c b/sysproc.c deleted file mode 100644 index e57e045..0000000 --- a/sysproc.c +++ /dev/null @@ -1,90 +0,0 @@ -#include "types.h" -#include "riscv.h" -#include "defs.h" -#include "date.h" -#include "param.h" -#include "memlayout.h" -#include "proc.h" - -int -sys_exit(void) -{ - exit(); - return 0; // not reached -} - -int -sys_getpid(void) -{ - return myproc()->pid; -} - -int -sys_fork(void) -{ - return fork(); -} - -int -sys_wait(void) -{ - return wait(); -} - -int -sys_sbrk(void) -{ - int addr; - int n; - - if(argint(0, &n) < 0) - return -1; - addr = myproc()->sz; - if(growproc(n) < 0) - return -1; - return addr; -} - -int -sys_sleep(void) -{ - int n; - uint ticks0; - - if(argint(0, &n) < 0) - return -1; - acquire(&tickslock); - ticks0 = ticks; - while(ticks - ticks0 < n){ - if(myproc()->killed){ - release(&tickslock); - return -1; - } - sleep(&ticks, &tickslock); - } - release(&tickslock); - return 0; -} - -int -sys_kill(void) -{ - int pid; - - if(argint(0, &pid) < 0) - return -1; - return kill(pid); -} - -// return how many clock tick interrupts have occurred -// since start. -int -sys_uptime(void) -{ - uint xticks; - - acquire(&tickslock); - xticks = ticks; - release(&tickslock); - return xticks; -} |