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/*
*
* 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_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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