| /* |
| * |
| * 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_IOMGR_WAKEUP_FD_H_ |
| #define __GRPC_INTERNAL_IOMGR_WAKEUP_FD_H_ |
| |
| typedef struct grpc_wakeup_fd_info grpc_wakeup_fd_info; |
| |
| typedef struct grpc_wakeup_fd_vtable { |
| void (*create)(grpc_wakeup_fd_info *fd_info); |
| void (*consume)(grpc_wakeup_fd_info *fd_info); |
| void (*wakeup)(grpc_wakeup_fd_info *fd_info); |
| void (*destroy)(grpc_wakeup_fd_info *fd_info); |
| /* Must be called before calling any other functions */ |
| int (*check_availability)(void); |
| } grpc_wakeup_fd_vtable; |
| |
| /* Private structures; don't access their fields directly outside of wakeup fd |
| * code. */ |
| struct grpc_wakeup_fd_info { |
| int read_fd; |
| int write_fd; |
| }; |
| |
| /* Defined in some specialized implementation's .c file, or by |
| * wakeup_fd_nospecial.c if no such implementation exists. */ |
| extern const grpc_wakeup_fd_vtable specialized_wakeup_fd_vtable; |
| |
| #endif /* __GRPC_INTERNAL_IOMGR_WAKEUP_FD_POSIX_H_ */ |