Kernel: Add basic nanosleep, only millisecond percision

This commit is contained in:
Bananymous 2023-09-04 12:58:25 +03:00
parent b2139c0b1e
commit 9901f95d78
5 changed files with 17 additions and 0 deletions

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@ -68,6 +68,7 @@ namespace Kernel
BAN::ErrorOr<long> sys_wait(pid_t pid, int* stat_loc, int options);
BAN::ErrorOr<long> sys_sleep(int seconds);
BAN::ErrorOr<long> sys_nanosleep(const timespec* rqtp, timespec* rmtp);
BAN::ErrorOr<long> sys_setenvp(char** envp);

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@ -529,6 +529,13 @@ namespace Kernel
return 0;
}
BAN::ErrorOr<long> Process::sys_nanosleep(const timespec* rqtp, timespec* rmtp)
{
(void)rmtp;
SystemTimer::get().sleep(rqtp->tv_sec * 1000 + BAN::Math::div_round_up<uint64_t>(rqtp->tv_nsec, 1'000'000));
return 0;
}
BAN::ErrorOr<long> Process::sys_setenvp(char** envp)
{
LockGuard _(m_lock);

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@ -182,6 +182,9 @@ namespace Kernel
case SYS_FCNTL:
ret = Process::current().sys_fcntl((int)arg1, (int)arg2, (int)arg3);
break;
case SYS_NANOSLEEP:
ret = Process::current().sys_nanosleep((const timespec*)arg1, (timespec*)arg2);
break;
default:
dwarnln("Unknown syscall {}", syscall);
break;

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@ -51,6 +51,7 @@ __BEGIN_DECLS
#define SYS_GET_PGID 44
#define SYS_SET_PGID 45
#define SYS_FCNTL 46
#define SYS_NANOSLEEP 47
__END_DECLS

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@ -5,4 +5,9 @@
int clock_gettime(clockid_t clock_id, struct timespec* tp)
{
return syscall(SYS_CLOCK_GETTIME, clock_id, tp);
}
int nanosleep(const struct timespec* rqtp, struct timespec* rmtp)
{
return syscall(SYS_NANOSLEEP, rqtp, rmtp);
}