| 1 | /* $Id: thread-r0drv-freebsd.c 8245 2008-04-21 17:24:28Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - Threads (Part 1), Ring-0 Driver, FreeBSD.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (c) 2007 knut st. osmundsen <[email protected]>
|
|---|
| 8 | *
|
|---|
| 9 | * Permission is hereby granted, free of charge, to any person
|
|---|
| 10 | * obtaining a copy of this software and associated documentation
|
|---|
| 11 | * files (the "Software"), to deal in the Software without
|
|---|
| 12 | * restriction, including without limitation the rights to use,
|
|---|
| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|---|
| 14 | * copies of the Software, and to permit persons to whom the
|
|---|
| 15 | * Software is furnished to do so, subject to the following
|
|---|
| 16 | * conditions:
|
|---|
| 17 | *
|
|---|
| 18 | * The above copyright notice and this permission notice shall be
|
|---|
| 19 | * included in all copies or substantial portions of the Software.
|
|---|
| 20 | *
|
|---|
| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|---|
| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|---|
| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|---|
| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|---|
| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|---|
| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|---|
| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|---|
| 28 | * OTHER DEALINGS IN THE SOFTWARE.
|
|---|
| 29 | */
|
|---|
| 30 |
|
|---|
| 31 | /*******************************************************************************
|
|---|
| 32 | * Header Files *
|
|---|
| 33 | *******************************************************************************/
|
|---|
| 34 | #include "the-freebsd-kernel.h"
|
|---|
| 35 |
|
|---|
| 36 | #include <iprt/thread.h>
|
|---|
| 37 | #include <iprt/err.h>
|
|---|
| 38 | #include <iprt/assert.h>
|
|---|
| 39 |
|
|---|
| 40 | #include "internal/thread.h"
|
|---|
| 41 |
|
|---|
| 42 |
|
|---|
| 43 | RTDECL(RTNATIVETHREAD) RTThreadNativeSelf(void)
|
|---|
| 44 | {
|
|---|
| 45 | return (RTNATIVETHREAD)curthread;
|
|---|
| 46 | }
|
|---|
| 47 |
|
|---|
| 48 |
|
|---|
| 49 | RTDECL(int) RTThreadSleep(unsigned cMillies)
|
|---|
| 50 | {
|
|---|
| 51 | int rc;
|
|---|
| 52 | int cTicks;
|
|---|
| 53 |
|
|---|
| 54 | /*
|
|---|
| 55 | * 0 ms sleep -> yield.
|
|---|
| 56 | */
|
|---|
| 57 | if (!cMillies)
|
|---|
| 58 | {
|
|---|
| 59 | RTThreadYield();
|
|---|
| 60 | return VINF_SUCCESS;
|
|---|
| 61 | }
|
|---|
| 62 |
|
|---|
| 63 | /*
|
|---|
| 64 | * Translate milliseconds into ticks and go to sleep.
|
|---|
| 65 | */
|
|---|
| 66 | if (cMillies != RT_INDEFINITE_WAIT)
|
|---|
| 67 | {
|
|---|
| 68 | if (hz == 1000)
|
|---|
| 69 | cTicks = cMillies;
|
|---|
| 70 | else if (hz == 100)
|
|---|
| 71 | cTicks = cMillies / 10;
|
|---|
| 72 | else
|
|---|
| 73 | {
|
|---|
| 74 | int64_t cTicks64 = ((uint64_t)cMillies * hz) / 1000;
|
|---|
| 75 | cTicks = (int)cTicks64;
|
|---|
| 76 | if (cTicks != cTicks64)
|
|---|
| 77 | cTicks = INT_MAX;
|
|---|
| 78 | }
|
|---|
| 79 | }
|
|---|
| 80 | else
|
|---|
| 81 | cTicks = 0; /* requires giant lock! */
|
|---|
| 82 |
|
|---|
| 83 | rc = tsleep((void *)RTThreadSleep,
|
|---|
| 84 | PZERO | PCATCH,
|
|---|
| 85 | "iprtsl", /* max 6 chars */
|
|---|
| 86 | cTicks);
|
|---|
| 87 | switch (rc)
|
|---|
| 88 | {
|
|---|
| 89 | case 0:
|
|---|
| 90 | return VINF_SUCCESS;
|
|---|
| 91 | case EWOULDBLOCK:
|
|---|
| 92 | return VERR_TIMEOUT;
|
|---|
| 93 | case EINTR:
|
|---|
| 94 | case ERESTART:
|
|---|
| 95 | return VERR_INTERRUPTED;
|
|---|
| 96 | default:
|
|---|
| 97 | AssertMsgFailed(("%d\n", rc));
|
|---|
| 98 | return VERR_NO_TRANSLATION;
|
|---|
| 99 | }
|
|---|
| 100 | }
|
|---|
| 101 |
|
|---|
| 102 |
|
|---|
| 103 | RTDECL(bool) RTThreadYield(void)
|
|---|
| 104 | {
|
|---|
| 105 | uio_yield();
|
|---|
| 106 | return false; /** @todo figure this one ... */
|
|---|
| 107 | }
|
|---|
| 108 |
|
|---|
