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-rw-r--r--nsprpub/pr/src/md/unix/darwin.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/unix/darwin.c b/nsprpub/pr/src/md/unix/darwin.c
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+++ b/nsprpub/pr/src/md/unix/darwin.c
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "primpl.h"
+
+#include <mach/mach_time.h>
+
+void _MD_EarlyInit(void)
+{
+}
+
+/*
+ * The multiplier (as a fraction) for converting the Mach absolute time
+ * unit to nanoseconds.
+ */
+static mach_timebase_info_data_t machTimebaseInfo;
+
+void _PR_Mach_IntervalInit(void)
+{
+ kern_return_t rv;
+
+ rv = mach_timebase_info(&machTimebaseInfo);
+ PR_ASSERT(rv == KERN_SUCCESS);
+}
+
+PRIntervalTime _PR_Mach_GetInterval(void)
+{
+ uint64_t time;
+
+ /*
+ * mach_absolute_time returns the time in the Mach absolute time unit.
+ * Convert it to milliseconds. See Mac Technical Q&A QA1398.
+ */
+ time = mach_absolute_time();
+ time = time * machTimebaseInfo.numer / machTimebaseInfo.denom /
+ PR_NSEC_PER_MSEC;
+ return (PRIntervalTime)time;
+} /* _PR_Mach_GetInterval */
+
+PRIntervalTime _PR_Mach_TicksPerSecond(void)
+{
+ return 1000;
+}
+
+PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np)
+{
+#if !defined(_PR_PTHREADS)
+ if (isCurrent) {
+ (void) setjmp(CONTEXT(t));
+ }
+ *np = sizeof(CONTEXT(t)) / sizeof(PRWord);
+ return (PRWord *) CONTEXT(t);
+#else
+ *np = 0;
+ return NULL;
+#endif
+}
+
+#if !defined(_PR_PTHREADS)
+void
+_MD_SET_PRIORITY(_MDThread *thread, PRUintn newPri)
+{
+ return;
+}
+
+PRStatus
+_MD_InitializeThread(PRThread *thread)
+{
+ return PR_SUCCESS;
+}
+
+PRStatus
+_MD_WAIT(PRThread *thread, PRIntervalTime ticks)
+{
+ PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));
+ _PR_MD_SWITCH_CONTEXT(thread);
+ return PR_SUCCESS;
+}
+
+PRStatus
+_MD_WAKEUP_WAITER(PRThread *thread)
+{
+ if (thread) {
+ PR_ASSERT(!(thread->flags & _PR_GLOBAL_SCOPE));
+ }
+ return PR_SUCCESS;
+}
+
+/* These functions should not be called for Darwin */
+void
+_MD_YIELD(void)
+{
+ PR_NOT_REACHED("_MD_YIELD should not be called for Darwin.");
+}
+
+PRStatus
+_MD_CREATE_THREAD(
+ PRThread *thread,
+ void (*start) (void *),
+ PRThreadPriority priority,
+ PRThreadScope scope,
+ PRThreadState state,
+ PRUint32 stackSize)
+{
+ PR_NOT_REACHED("_MD_CREATE_THREAD should not be called for Darwin.");
+ return PR_FAILURE;
+}
+#endif /* ! _PR_PTHREADS */
+
+/* darwin.c */
+