Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc-cloned / deps / grpc / include / grpc / impl / codegen / atm_gcc_atomic.h

diff --git a/legacy-libs/grpc-cloned/deps/grpc/include/grpc/impl/codegen/atm_gcc_atomic.h b/legacy-libs/grpc-cloned/deps/grpc/include/grpc/impl/codegen/atm_gcc_atomic.h
new file mode 100644 (file)
index 0000000..5879708
--- /dev/null
+++ b/legacy-libs/grpc-cloned/deps/grpc/include/grpc/impl/codegen/atm_gcc_atomic.h
@@ -0,0 +1,91 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * 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.
+ *
+ */
+
+#ifndef GRPC_IMPL_CODEGEN_ATM_GCC_ATOMIC_H
+#define GRPC_IMPL_CODEGEN_ATM_GCC_ATOMIC_H
+
+/* atm_platform.h for gcc and gcc-like compilers with the
+   __atomic_* interface.  */
+#include <grpc/impl/codegen/port_platform.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef intptr_t gpr_atm;
+#define GPR_ATM_MAX INTPTR_MAX
+#define GPR_ATM_MIN INTPTR_MIN
+
+#ifdef GPR_LOW_LEVEL_COUNTERS
+extern gpr_atm gpr_counter_atm_cas;
+extern gpr_atm gpr_counter_atm_add;
+#define GPR_ATM_INC_COUNTER(counter) \
+  __atomic_fetch_add(&counter, 1, __ATOMIC_RELAXED)
+#define GPR_ATM_INC_CAS_THEN(blah) \
+  (GPR_ATM_INC_COUNTER(gpr_counter_atm_cas), blah)
+#define GPR_ATM_INC_ADD_THEN(blah) \
+  (GPR_ATM_INC_COUNTER(gpr_counter_atm_add), blah)
+#else
+#define GPR_ATM_INC_CAS_THEN(blah) blah
+#define GPR_ATM_INC_ADD_THEN(blah) blah
+#endif
+
+#define gpr_atm_full_barrier() (__atomic_thread_fence(__ATOMIC_SEQ_CST))
+
+#define gpr_atm_acq_load(p) (__atomic_load_n((p), __ATOMIC_ACQUIRE))
+#define gpr_atm_no_barrier_load(p) (__atomic_load_n((p), __ATOMIC_RELAXED))
+#define gpr_atm_rel_store(p, value) \
+  (__atomic_store_n((p), (intptr_t)(value), __ATOMIC_RELEASE))
+#define gpr_atm_no_barrier_store(p, value) \
+  (__atomic_store_n((p), (intptr_t)(value), __ATOMIC_RELAXED))
+
+#define gpr_atm_no_barrier_fetch_add(p, delta) \
+  GPR_ATM_INC_ADD_THEN(                        \
+      __atomic_fetch_add((p), (intptr_t)(delta), __ATOMIC_RELAXED))
+#define gpr_atm_full_fetch_add(p, delta) \
+  GPR_ATM_INC_ADD_THEN(                  \
+      __atomic_fetch_add((p), (intptr_t)(delta), __ATOMIC_ACQ_REL))
+
+static __inline int gpr_atm_no_barrier_cas(gpr_atm* p, gpr_atm o, gpr_atm n) {
+  return GPR_ATM_INC_CAS_THEN(__atomic_compare_exchange_n(
+      p, &o, n, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED));
+}
+
+static __inline int gpr_atm_acq_cas(gpr_atm* p, gpr_atm o, gpr_atm n) {
+  return GPR_ATM_INC_CAS_THEN(__atomic_compare_exchange_n(
+      p, &o, n, 0, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED));
+}
+
+static __inline int gpr_atm_rel_cas(gpr_atm* p, gpr_atm o, gpr_atm n) {
+  return GPR_ATM_INC_CAS_THEN(__atomic_compare_exchange_n(
+      p, &o, n, 0, __ATOMIC_RELEASE, __ATOMIC_RELAXED));
+}
+
+static __inline int gpr_atm_full_cas(gpr_atm* p, gpr_atm o, gpr_atm n) {
+  return GPR_ATM_INC_CAS_THEN(__atomic_compare_exchange_n(
+      p, &o, n, 0, __ATOMIC_ACQ_REL, __ATOMIC_RELAXED));
+}
+
+#define gpr_atm_full_xchg(p, n) \
+  GPR_ATM_INC_CAS_THEN(__atomic_exchange_n((p), (n), __ATOMIC_ACQ_REL))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GRPC_IMPL_CODEGEN_ATM_GCC_ATOMIC_H */