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/*
*
* 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_POLLSET_WINDOWS_H
#define GRPC_CORE_LIB_IOMGR_POLLSET_WINDOWS_H
#include <grpc/support/sync.h>
#include "src/core/lib/iomgr/socket_windows.h"
/* There isn't really any such thing as a pollset under Windows, due to the
nature of the IO completion ports. A Windows "pollset" is merely a mutex
used to synchronize with the IOCP, and workers are condition variables
used to block threads until work is ready. */
typedef enum {
GRPC_POLLSET_WORKER_LINK_POLLSET = 0,
GRPC_POLLSET_WORKER_LINK_GLOBAL,
GRPC_POLLSET_WORKER_LINK_TYPES
} grpc_pollset_worker_link_type;
typedef struct grpc_pollset_worker_link {
struct grpc_pollset_worker *next;
struct grpc_pollset_worker *prev;
} grpc_pollset_worker_link;
struct grpc_pollset;
typedef struct grpc_pollset grpc_pollset;
typedef struct grpc_pollset_worker {
gpr_cv cv;
int kicked;
struct grpc_pollset *pollset;
grpc_pollset_worker_link links[GRPC_POLLSET_WORKER_LINK_TYPES];
} grpc_pollset_worker;
struct grpc_pollset {
int shutting_down;
int kicked_without_pollers;
int is_iocp_worker;
grpc_pollset_worker root_worker;
grpc_closure *on_shutdown;
};
void grpc_pollset_global_init(void);
void grpc_pollset_global_shutdown(void);
#endif /* GRPC_CORE_LIB_IOMGR_POLLSET_WINDOWS_H */
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