diff options
author | David Garcia Quintas <dgq@google.com> | 2016-01-25 17:32:48 -0800 |
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committer | David Garcia Quintas <dgq@google.com> | 2016-01-25 17:32:48 -0800 |
commit | 2425bbbc5587665112bc372c14f6b5483c902370 (patch) | |
tree | 615d3fb670d87965bd54f2452d302be545a58dd2 /include/grpc/impl/codegen/atm_gcc_atomic.h | |
parent | f48e538003186a539fa6cfcda0b474c7cfbae506 (diff) |
Further work. Compiles. WIP
Diffstat (limited to 'include/grpc/impl/codegen/atm_gcc_atomic.h')
-rw-r--r-- | include/grpc/impl/codegen/atm_gcc_atomic.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/include/grpc/impl/codegen/atm_gcc_atomic.h b/include/grpc/impl/codegen/atm_gcc_atomic.h new file mode 100644 index 0000000000..8caf7edbde --- /dev/null +++ b/include/grpc/impl/codegen/atm_gcc_atomic.h @@ -0,0 +1,72 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Google Inc. 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 + * OWNER 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. + * + */ + +#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> + +typedef intptr_t gpr_atm; + +#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) \ + (__atomic_fetch_add((p), (intptr_t)(delta), __ATOMIC_RELAXED)) +#define gpr_atm_full_fetch_add(p, delta) \ + (__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 __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 __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 __atomic_compare_exchange_n(p, &o, n, 0, __ATOMIC_RELEASE, + __ATOMIC_RELAXED); +} + +#endif /* GRPC_IMPL_CODEGEN_ATM_GCC_ATOMIC_H */ |