| /* |
| * |
| * 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_CORE_LIB_IOMGR_POLLING_ENTITY_H |
| #define GRPC_CORE_LIB_IOMGR_POLLING_ENTITY_H |
| |
| #include "src/core/lib/iomgr/pollset.h" |
| #include "src/core/lib/iomgr/pollset_set.h" |
| |
| /* A grpc_polling_entity is a pollset-or-pollset_set container. It allows |
| * functions that |
| * accept a pollset XOR a pollset_set to do so through an abstract interface. |
| * No ownership is taken. */ |
| |
| typedef struct grpc_polling_entity { |
| union { |
| grpc_pollset *pollset; |
| grpc_pollset_set *pollset_set; |
| } pollent; |
| enum pops_tag { POPS_NONE, POPS_POLLSET, POPS_POLLSET_SET } tag; |
| } grpc_polling_entity; |
| |
| grpc_polling_entity grpc_polling_entity_create_from_pollset_set( |
| grpc_pollset_set *pollset_set); |
| grpc_polling_entity grpc_polling_entity_create_from_pollset( |
| grpc_pollset *pollset); |
| |
| /** If \a pollent contains a pollset, return it. Otherwise, return NULL */ |
| grpc_pollset *grpc_polling_entity_pollset(grpc_polling_entity *pollent); |
| |
| /** If \a pollent contains a pollset_set, return it. Otherwise, return NULL */ |
| grpc_pollset_set *grpc_polling_entity_pollset_set(grpc_polling_entity *pollent); |
| |
| bool grpc_polling_entity_is_empty(const grpc_polling_entity *pollent); |
| |
| /** Add the pollset or pollset_set in \a pollent to the destination pollset_set |
| * \a |
| * pss_dst */ |
| void grpc_polling_entity_add_to_pollset_set(grpc_exec_ctx *exec_ctx, |
| grpc_polling_entity *pollent, |
| grpc_pollset_set *pss_dst); |
| |
| /** Delete the pollset or pollset_set in \a pollent from the destination |
| * pollset_set \a |
| * pss_dst */ |
| void grpc_polling_entity_del_from_pollset_set(grpc_exec_ctx *exec_ctx, |
| grpc_polling_entity *pollent, |
| grpc_pollset_set *pss_dst); |
| /* pollset_set specific */ |
| |
| #endif /* GRPC_CORE_LIB_IOMGR_POLLING_ENTITY_H */ |