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Diffstat (limited to 'src/core/lib/iomgr/block_annotate.h')
-rw-r--r-- | src/core/lib/iomgr/block_annotate.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/core/lib/iomgr/block_annotate.h b/src/core/lib/iomgr/block_annotate.h new file mode 100644 index 0000000000..cbcb5d92f0 --- /dev/null +++ b/src/core/lib/iomgr/block_annotate.h @@ -0,0 +1,59 @@ +/* + * + * 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_CORE_LIB_IOMGR_BLOCK_ANNOTATE_H +#define GRPC_CORE_LIB_IOMGR_BLOCK_ANNOTATE_H + +#ifdef __cplusplus +extern "C" { +#endif + +void gpr_thd_start_blocking_region(); +void gpr_thd_end_blocking_region(); + +#ifdef __cplusplus +} +#endif + +/* These annotations identify the beginning and end of regions where + the code may block for reasons other than synchronization functions. + These include poll, epoll, and getaddrinfo. */ + +#ifdef GRPC_SCHEDULING_MARK_BLOCKING_REGION +#define GRPC_SCHEDULING_START_BLOCKING_REGION \ + do { \ + gpr_thd_start_blocking_region(); \ + } while (0) +#define GRPC_SCHEDULING_END_BLOCKING_REGION \ + do { \ + gpr_thd_end_blocking_region(); \ + } while (0) +#else +#define GRPC_SCHEDULING_START_BLOCKING_REGION \ + do { \ + } while (0) +#define GRPC_SCHEDULING_END_BLOCKING_REGION_NO_EXEC_CTX \ + do { \ + } while (0) +#define GRPC_SCHEDULING_END_BLOCKING_REGION_WITH_EXEC_CTX(ec) \ + do { \ + grpc_exec_ctx_invalidate_now((ec)); \ + } while (0) +#endif + +#endif /* GRPC_CORE_LIB_IOMGR_BLOCK_ANNOTATE_H */ |