Bricoles/xv6-riscv
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handle negative arguments to sleep() a little better

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This commit is contained in:
Robert Morris 2022-09-09 09:17:37 -04:00
parent f5b93ef12f
commit 463ae0abc3
1 changed files with 2 additions and 0 deletions

2
kernel/sysproc.c
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@ -55,6 +55,8 @@ sys_sleep(void)
uint ticks0; uint ticks0;
argint(0, &n); argint(0, &n);
if(n < 0)
n = 0;
acquire(&tickslock); acquire(&tickslock);
ticks0 = ticks; ticks0 = ticks;
while(ticks - ticks0 < n){ while(ticks - ticks0 < n){