114 lines
2.3 KiB
C
114 lines
2.3 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "primpl.h"
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#include <mach/mach_time.h>
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void _MD_EarlyInit(void)
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{
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}
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/*
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* The multiplier (as a fraction) for converting the Mach absolute time
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* unit to nanoseconds.
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*/
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static mach_timebase_info_data_t machTimebaseInfo;
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void _PR_Mach_IntervalInit(void)
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{
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kern_return_t rv;
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rv = mach_timebase_info(&machTimebaseInfo);
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PR_ASSERT(rv == KERN_SUCCESS);
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}
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PRIntervalTime _PR_Mach_GetInterval(void)
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{
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uint64_t time;
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/*
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* mach_absolute_time returns the time in the Mach absolute time unit.
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* Convert it to milliseconds. See Mac Technical Q&A QA1398.
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*/
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time = mach_absolute_time();
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time = time * machTimebaseInfo.numer / machTimebaseInfo.denom /
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PR_NSEC_PER_MSEC;
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return (PRIntervalTime)time;
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} /* _PR_Mach_GetInterval */
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PRIntervalTime _PR_Mach_TicksPerSecond(void)
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{
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return 1000;
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}
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PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np)
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{
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#if !defined(_PR_PTHREADS)
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if (isCurrent) {
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(void) setjmp(CONTEXT(t));
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}
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*np = sizeof(CONTEXT(t)) / sizeof(PRWord);
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return (PRWord *) CONTEXT(t);
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#else
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*np = 0;
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return NULL;
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#endif
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}
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#if !defined(_PR_PTHREADS)
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void
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_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri)
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{
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return;
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}
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PRStatus
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_MD_InitializeThread(PRThread *thread)
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{
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return PR_SUCCESS;
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}
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PRStatus
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_MD_WAIT(PRThread *thread, PRIntervalTime ticks)
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{
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PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));
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_PR_MD_SWITCH_CONTEXT(thread);
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return PR_SUCCESS;
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}
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PRStatus
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_MD_WAKEUP_WAITER(PRThread *thread)
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{
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if (thread) {
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PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));
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}
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return PR_SUCCESS;
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}
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/* These functions should not be called for Darwin */
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void
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_MD_YIELD(void)
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{
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PR_NOT_REACHED("_MD_YIELD should not be called for Darwin.");
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}
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PRStatus
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_MD_CREATE_THREAD(
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PRThread *thread,
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void (*start) (void *),
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PRThreadPriority priority,
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PRThreadScope scope,
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PRThreadState state,
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PRUint32 stackSize)
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{
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PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Darwin.");
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return PR_FAILURE;
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}
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#endif /* ! _PR_PTHREADS */
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/* darwin.c */
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