blob: 7be765436266ad1241b515c88964240254d6a335
| 1 | /*********************************************************************** |
| 2 | * |
| 3 | * eventpriv.h |
| 4 | * |
| 5 | * Abstraction of select call into "event-handling" to make programming |
| 6 | * easier. This header includes "private" definitions which users |
| 7 | * of the event-handling code should not care about. |
| 8 | * |
| 9 | * Copyright (C) 2001 Roaring Penguin Software Inc. |
| 10 | * |
| 11 | * This program may be distributed according to the terms of the GNU |
| 12 | * General Public License, version 2 or (at your option) any later version. |
| 13 | * |
| 14 | * $Id$ |
| 15 | * |
| 16 | * LIC: GPL |
| 17 | * |
| 18 | ***********************************************************************/ |
| 19 | |
| 20 | #ifndef INCLUDE_EVENTPRIV_H |
| 21 | #define INCLUDE_EVENTPRIV_H 1 |
| 22 | #include <sys/time.h> |
| 23 | #include <sys/types.h> |
| 24 | #include <unistd.h> |
| 25 | |
| 26 | /* Handler structure */ |
| 27 | typedef struct EventHandler_t { |
| 28 | struct EventHandler_t *next; /* Link in list */ |
| 29 | int fd; /* File descriptor for select */ |
| 30 | unsigned int flags; /* Select on read or write; enable timeout */ |
| 31 | struct timeval tmout; /* Absolute time for timeout */ |
| 32 | EventCallbackFunc fn; /* Callback function */ |
| 33 | void *data; /* Extra data to pass to callback */ |
| 34 | } EventHandler; |
| 35 | |
| 36 | /* Selector structure */ |
| 37 | typedef struct EventSelector_t { |
| 38 | EventHandler *handlers; /* Linked list of EventHandlers */ |
| 39 | int nestLevel; /* Event-handling nesting level */ |
| 40 | int opsPending; /* True if operations are pending */ |
| 41 | int destroyPending; /* If true, a destroy is pending */ |
| 42 | } EventSelector; |
| 43 | |
| 44 | /* Private flags */ |
| 45 | #define EVENT_FLAG_DELETED 256 |
| 46 | #endif |
| 47 |