| /* |
| * |
| * 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_INTERNAL_CORE_IOMGR_POLLSET_WINDOWS_H |
| #define GRPC_INTERNAL_CORE_IOMGR_POLLSET_WINDOWS_H |
| |
| #include <grpc/support/sync.h> |
| |
| #include "src/core/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; |
| }; |
| |
| extern gpr_mu grpc_polling_mu; |
| |
| #define GRPC_POLLSET_MU(pollset) (&grpc_polling_mu) |
| |
| #endif /* GRPC_INTERNAL_CORE_IOMGR_POLLSET_WINDOWS_H */ |