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comparison: nsprpub/pr/src/md/unix/darwin.c
nsprpub/pr/src/md/unix/darwin.c
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "primpl.h" | |
| 7 | |
| 8 #include <mach/mach_time.h> | |
| 9 | |
| 10 void _MD_EarlyInit(void) | |
| 11 { | |
| 12 } | |
| 13 | |
| 14 /* | |
| 15 * The multiplier (as a fraction) for converting the Mach absolute time | |
| 16 * unit to nanoseconds. | |
| 17 */ | |
| 18 static mach_timebase_info_data_t machTimebaseInfo; | |
| 19 | |
| 20 void _PR_Mach_IntervalInit(void) | |
| 21 { | |
| 22 kern_return_t rv; | |
| 23 | |
| 24 rv = mach_timebase_info(&machTimebaseInfo); | |
| 25 PR_ASSERT(rv == KERN_SUCCESS); | |
| 26 } | |
| 27 | |
| 28 PRIntervalTime _PR_Mach_GetInterval(void) | |
| 29 { | |
| 30 uint64_t time; | |
| 31 | |
| 32 /* | |
| 33 * mach_absolute_time returns the time in the Mach absolute time unit. | |
| 34 * Convert it to milliseconds. See Mac Technical Q&A QA1398. | |
| 35 */ | |
| 36 time = mach_absolute_time(); | |
| 37 time = time * machTimebaseInfo.numer / machTimebaseInfo.denom / | |
| 38 PR_NSEC_PER_MSEC; | |
| 39 return (PRIntervalTime)time; | |
| 40 } /* _PR_Mach_GetInterval */ | |
| 41 | |
| 42 PRIntervalTime _PR_Mach_TicksPerSecond(void) | |
| 43 { | |
| 44 return 1000; | |
| 45 } | |
| 46 | |
| 47 PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) | |
| 48 { | |
| 49 #if !defined(_PR_PTHREADS) | |
| 50 if (isCurrent) { | |
| 51 (void) setjmp(CONTEXT(t)); | |
| 52 } | |
| 53 *np = sizeof(CONTEXT(t)) / sizeof(PRWord); | |
| 54 return (PRWord *) CONTEXT(t); | |
| 55 #else | |
| 56 *np = 0; | |
| 57 return NULL; | |
| 58 #endif | |
| 59 } | |
| 60 | |
| 61 #if !defined(_PR_PTHREADS) | |
| 62 void | |
| 63 _MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri) | |
| 64 { | |
| 65 return; | |
| 66 } | |
| 67 | |
| 68 PRStatus | |
| 69 _MD_InitializeThread(PRThread *thread) | |
| 70 { | |
| 71 return PR_SUCCESS; | |
| 72 } | |
| 73 | |
| 74 PRStatus | |
| 75 _MD_WAIT(PRThread *thread, PRIntervalTime ticks) | |
| 76 { | |
| 77 PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); | |
| 78 _PR_MD_SWITCH_CONTEXT(thread); | |
| 79 return PR_SUCCESS; | |
| 80 } | |
| 81 | |
| 82 PRStatus | |
| 83 _MD_WAKEUP_WAITER(PRThread *thread) | |
| 84 { | |
| 85 if (thread) { | |
| 86 PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE)); | |
| 87 } | |
| 88 return PR_SUCCESS; | |
| 89 } | |
| 90 | |
| 91 /* These functions should not be called for Darwin */ | |
| 92 void | |
| 93 _MD_YIELD(void) | |
| 94 { | |
| 95 PR_NOT_REACHED("_MD_YIELD should not be called for Darwin."); | |
| 96 } | |
| 97 | |
| 98 PRStatus | |
| 99 _MD_CREATE_THREAD( | |
| 100 PRThread *thread, | |
| 101 void (*start) (void *), | |
| 102 PRThreadPriority priority, | |
| 103 PRThreadScope scope, | |
| 104 PRThreadState state, | |
| 105 PRUint32 stackSize) | |
| 106 { | |
| 107 PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Darwin."); | |
| 108 return PR_FAILURE; | |
| 109 } | |
| 110 #endif /* ! _PR_PTHREADS */ | |
| 111 | |
| 112 /* darwin.c */ | |
| 113 |
