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-rw-r--r--thirdparty/embree-aarch64/common/sys/barrier.h112
1 files changed, 0 insertions, 112 deletions
diff --git a/thirdparty/embree-aarch64/common/sys/barrier.h b/thirdparty/embree-aarch64/common/sys/barrier.h
deleted file mode 100644
index 89607b8685..0000000000
--- a/thirdparty/embree-aarch64/common/sys/barrier.h
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright 2009-2020 Intel Corporation
-// SPDX-License-Identifier: Apache-2.0
-
-#pragma once
-
-#include "intrinsics.h"
-#include "sysinfo.h"
-#include "atomic.h"
-
-namespace embree
-{
- /*! system barrier using operating system */
- class BarrierSys
- {
- public:
-
- /*! construction / destruction */
- BarrierSys (size_t N = 0);
- ~BarrierSys ();
-
- private:
- /*! class in non-copyable */
- BarrierSys (const BarrierSys& other) DELETED; // do not implement
- BarrierSys& operator= (const BarrierSys& other) DELETED; // do not implement
-
- public:
- /*! intializes the barrier with some number of threads */
- void init(size_t count);
-
- /*! lets calling thread wait in barrier */
- void wait();
-
- private:
- void* opaque;
- };
-
- /*! fast active barrier using atomitc counter */
- struct BarrierActive
- {
- public:
- BarrierActive ()
- : cntr(0) {}
-
- void reset() {
- cntr.store(0);
- }
-
- void wait (size_t numThreads)
- {
- cntr++;
- while (cntr.load() != numThreads)
- pause_cpu();
- }
-
- private:
- std::atomic<size_t> cntr;
- };
-
- /*! fast active barrier that does not require initialization to some number of threads */
- struct BarrierActiveAutoReset
- {
- public:
- BarrierActiveAutoReset ()
- : cntr0(0), cntr1(0) {}
-
- void wait (size_t threadCount)
- {
- cntr0.fetch_add(1);
- while (cntr0 != threadCount) pause_cpu();
- cntr1.fetch_add(1);
- while (cntr1 != threadCount) pause_cpu();
- cntr0.fetch_add(-1);
- while (cntr0 != 0) pause_cpu();
- cntr1.fetch_add(-1);
- while (cntr1 != 0) pause_cpu();
- }
-
- private:
- std::atomic<size_t> cntr0;
- std::atomic<size_t> cntr1;
- };
-
- class LinearBarrierActive
- {
- public:
-
- /*! construction and destruction */
- LinearBarrierActive (size_t threadCount = 0);
- ~LinearBarrierActive();
-
- private:
- /*! class in non-copyable */
- LinearBarrierActive (const LinearBarrierActive& other) DELETED; // do not implement
- LinearBarrierActive& operator= (const LinearBarrierActive& other) DELETED; // do not implement
-
- public:
- /*! intializes the barrier with some number of threads */
- void init(size_t threadCount);
-
- /*! thread with threadIndex waits in the barrier */
- void wait (const size_t threadIndex);
-
- private:
- volatile unsigned char* count0;
- volatile unsigned char* count1;
- volatile unsigned int mode;
- volatile unsigned int flag0;
- volatile unsigned int flag1;
- volatile size_t threadCount;
- };
-}
-