[installation] Init with inital config for global

include/libbson-1.0/bson/bson-atomic.h

@@ -0,0 +1,105 @@
+/*
+ * Copyright 2013-2014 MongoDB, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "bson/bson-prelude.h"
+
+
+#ifndef BSON_ATOMIC_H
+#define BSON_ATOMIC_H
+
+
+#include "bson/bson-config.h"
+#include "bson/bson-compat.h"
+#include "bson/bson-macros.h"
+
+
+BSON_BEGIN_DECLS
+
+
+#if defined(__sun) && defined(__SVR4)
+/* Solaris */
+#include <atomic.h>
+#define bson_atomic_int_add(p, v) \
+   atomic_add_32_nv ((volatile uint32_t *) p, (v))
+#define bson_atomic_int64_add(p, v) \
+   atomic_add_64_nv ((volatile uint64_t *) p, (v))
+#elif defined(_WIN32)
+/* MSVC/MinGW */
+#define bson_atomic_int_add(p, v) \
+   (InterlockedExchangeAdd ((volatile LONG *) (p), (LONG) (v)) + (LONG) (v))
+#define bson_atomic_int64_add(p, v)                                        \
+   (InterlockedExchangeAdd64 ((volatile LONGLONG *) (p), (LONGLONG) (v)) + \
+    (LONGLONG) (v))
+#else
+#ifdef BSON_HAVE_ATOMIC_32_ADD_AND_FETCH
+#define bson_atomic_int_add(p, v) __sync_add_and_fetch ((p), (v))
+#else
+#define __BSON_NEED_ATOMIC_32
+#endif
+#ifdef BSON_HAVE_ATOMIC_64_ADD_AND_FETCH
+#if BSON_GNUC_IS_VERSION(4, 1)
+/*
+ * GCC 4.1 on i386 can generate buggy 64-bit atomic increment.
+ * So we will work around with a fallback.
+ *
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40693
+ */
+#define __BSON_NEED_ATOMIC_64
+#else
+#define bson_atomic_int64_add(p, v) \
+   __sync_add_and_fetch ((volatile int64_t *) (p), (int64_t) (v))
+#endif
+#else
+#define __BSON_NEED_ATOMIC_64
+#endif
+#endif
+
+#ifdef __BSON_NEED_ATOMIC_32
+BSON_EXPORT (int32_t)
+bson_atomic_int_add (volatile int32_t *p, int32_t n);
+#endif
+#ifdef __BSON_NEED_ATOMIC_64
+BSON_EXPORT (int64_t)
+bson_atomic_int64_add (volatile int64_t *p, int64_t n);
+#endif
+
+
+#if defined(_WIN32)
+#define bson_memory_barrier() MemoryBarrier ()
+#elif defined(__GNUC__)
+#if BSON_GNUC_CHECK_VERSION(4, 1)
+#define bson_memory_barrier() __sync_synchronize ()
+#else
+#warning "GCC Pre-4.1 discovered, using inline assembly for memory barrier."
+#define bson_memory_barrier() __asm__ volatile("" ::: "memory")
+#endif
+#elif defined(__SUNPRO_C)
+#include <mbarrier.h>
+#define bson_memory_barrier() __machine_rw_barrier ()
+#elif defined(__xlC__)
+#define bson_memory_barrier() __sync ()
+#else
+#define __BSON_NEED_BARRIER 1
+#warning "Unknown compiler, using lock for compiler barrier."
+BSON_EXPORT (void)
+bson_memory_barrier (void);
+#endif
+
+
+BSON_END_DECLS
+
+
+#endif /* BSON_ATOMIC_H */