RandomX integration

Support RandomX PoW algorithm

1 files changed, 58 insertions, 0 deletions

diff --git a/src/crypto/c_threads.h b/src/crypto/c_threads.h
new file mode 100644
index 000000000..56d680ff8
--- /dev/null
+++ b/src/crypto/c_threads.h
@@ -0,0 +1,58 @@
+// Copyright (c) 2019, The Monero Project
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/* Brain-dead simple portability wrapper over thread APIs for C */
+#pragma once
+
+#ifdef _WIN32
+#include <windows.h>
+#define CTHR_MUTEX_TYPE	HANDLE
+#define CTHR_MUTEX_INIT	NULL
+#define CTHR_MUTEX_LOCK(x)	do { if (x == NULL) { \
+    HANDLE p = CreateMutex(NULL, FALSE, NULL); \
+    if (InterlockedCompareExchangePointer((PVOID*)&x, (PVOID)p, NULL) != NULL) \
+      CloseHandle(p); \
+  } WaitForSingleObject(x, INFINITE); } while(0)
+#define CTHR_MUTEX_UNLOCK(x)	ReleaseMutex(x)
+#define CTHR_THREAD_TYPE	HANDLE
+#define CTHR_THREAD_RTYPE	void
+#define CTHR_THREAD_RETURN	return
+#define CTHR_THREAD_CREATE(thr, func, arg)	thr = (HANDLE)_beginthread(func, 0, arg)
+#define CTHR_THREAD_JOIN(thr)			WaitForSingleObject(thr, INFINITE)
+#else
+#include <pthread.h>
+#define CTHR_MUTEX_TYPE pthread_mutex_t
+#define CTHR_MUTEX_INIT	PTHREAD_MUTEX_INITIALIZER
+#define CTHR_MUTEX_LOCK(x)	pthread_mutex_lock(&x)
+#define CTHR_MUTEX_UNLOCK(x)	pthread_mutex_unlock(&x)
+#define CTHR_THREAD_TYPE pthread_t
+#define CTHR_THREAD_RTYPE	void *
+#define CTHR_THREAD_RETURN	return NULL
+#define CTHR_THREAD_CREATE(thr, func, arg)	pthread_create(&thr, NULL, func, arg)
+#define CTHR_THREAD_JOIN(thr)			pthread_join(thr, NULL)
+#endif