1 /****************************************************************************** 2 * 3 * Copyright (C) 2018 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 21 /*****************************************************************************/ 22 /* */ 23 /* File Name : osal_select_engine.h */ 24 /* */ 25 /* Description : This file contains OSAL Select Engine handle */ 26 /* structure definition. */ 27 /* */ 28 /* List of Functions : None */ 29 /* */ 30 /* Issues / Problems : None */ 31 /* */ 32 /* Revision History : */ 33 /* */ 34 /* DD MM YYYY Author(s) Changes (Describe the changes made) */ 35 /* 26 05 2006 Ittiam Draft */ 36 /* */ 37 /*****************************************************************************/ 38 39 #ifndef OSAL_SELECT_ENGINE_H 40 #define OSAL_SELECT_ENGINE_H 41 42 /*****************************************************************************/ 43 /* Constants */ 44 /*****************************************************************************/ 45 46 #define ACTIVE 1 47 #define SHUTDOWN 2 48 #define DEAD 3 49 50 /*****************************************************************************/ 51 /* Structures */ 52 /*****************************************************************************/ 53 54 typedef struct 55 { 56 osal_select_entry_t *readfds[MAX_FDS]; /* To check for read */ 57 UWORD32 read_count; /* Count of read descriptors */ 58 osal_select_entry_t *writefds[MAX_FDS]; /* To check for write */ 59 UWORD32 write_count; /* Count of write descriptors */ 60 osal_select_entry_t *exceptfds[MAX_FDS]; /* Check for errors */ 61 UWORD32 except_count; /* Count of write descriptors */ 62 WORD32 id; /* To generate id for each entry */ 63 volatile WORD32 state; /* State of select engine */ 64 void *thread_handle; /* Select engine thread handle */ 65 void *mutex_handle; /* Mutex for mutual exclusion. */ 66 void *mmr_handle; /* Handle to memory manager */ 67 osal_t *hdl; /* Associated OSAL handle */ 68 69 /* Timeout for thread sleep */ 70 UWORD32 select_timeout; 71 72 /* Timeout for SELECT system called by osal library */ 73 UWORD32 select_poll_interval; 74 } select_engine_t; 75 76 #endif /* OSAL_SELECT_ENGINE_H */ 77
