mirrors/Astral
1
0
Fork 0
mirror of https://github.com/Mathewnd/Astral.git synced 2026-10-31 06:28:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

kernel: usercopy functions

Browse Source
This commit is contained in:
Matheus
2024-06-09 19:31:26 -03:00
parent 429f56aced
commit 50b4b45d00
53 changed files with 712 additions and 260 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel-src/sys/syscalls/sleep.c
+9 -7
View File
@@ -14,12 +14,10 @@ syscallret_t syscall_nanosleep(context_t *, timespec_t *utime, timespec_t *remai
.ret = -1
};
if ((void *)utime > USERSPACE_END || (void *)remaining > USERSPACE_END) {
ret.errno = EFAULT;
timespec_t time;
ret.errno = usercopy_fromuser(&time, utime, sizeof(timespec_t));
if (ret.errno)
return ret;
}
timespec_t time = *utime;
if (time.ns > 999999999 || time.ns < 0) {
ret.errno = EINVAL;
@@ -34,8 +32,12 @@ syscallret_t syscall_nanosleep(context_t *, timespec_t *utime, timespec_t *remai
ret.errno = sched_yield();
if (ret.errno)
timer_remove(_cpu()->timer, &sleepentry);
if (ret.errno) {
uintmax_t remainingus = timer_remove(_cpu()->timer, &sleepentry);
time.ns = (remainingus % 1000000) * 1000;
time.s = (remainingus / 1000000);
ret.errno = usercopy_touser(remaining, &time, sizeof(timespec_t)) ? EFAULT : EINTR;
}
sched_targetcpu(NULL);