src/lib/syscall_time.C


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

/*  IBM_PROLOG_BEGIN_TAG
 *  This is an automatically generated prolog.
 *
 *  $Source: src/lib/syscall_time.C $
 *
 *  IBM CONFIDENTIAL
 *
 *  COPYRIGHT International Business Machines Corp. 2010-2012
 *
 *  p1
 *
 *  Object Code Only (OCO) source materials
 *  Licensed Internal Code Source Materials
 *  IBM HostBoot Licensed Internal Code
 *
 *  The source code for this program is not published or other-
 *  wise divested of its trade secrets, irrespective of what has
 *  been deposited with the U.S. Copyright Office.
 *
 *  Origin: 30
 *
 *  IBM_PROLOG_END_TAG
 */
#include <time.h>
#include <sys/time.h>
#include <sys/syscall.h>
#include <errno.h>
#include <kernel/timemgr.H>

using namespace Systemcalls;

void nanosleep(uint64_t sec, uint64_t nsec)
{
    // If the delay is short then simpleDelay() will perform the delay
    if(unlikely(!TimeManager::simpleDelay(sec, nsec)))
    {
        _syscall2(TIME_NANOSLEEP, (void*)sec, (void*)nsec);
    }
}

int clock_gettime(clockid_t clk_id, timespec_t* tp)
{
    if (unlikely(NULL == tp)) { return -EFAULT; }

    int rc = 0;

    switch(clk_id)
    {
        case CLOCK_REALTIME: // TODO: Need a message to the FSP to get the
                             //       real-time.
            rc = -EINVAL;
            break;

        case CLOCK_MONOTONIC:
            TimeManager::convertTicksToSec(getTB(), tp->tv_sec, tp->tv_nsec);
            break;

        default:
            rc = -EINVAL;
            break;
    }

    return rc;
}