1e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved. 2e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * 3e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * Redistribution and use in source and binary forms, with or without 4e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * modification, are permitted provided that the following conditions are 5e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * met: 6e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * * Redistributions of source code must retain the above copyright 7e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * notice, this list of conditions and the following disclaimer. 8e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * * Redistributions in binary form must reproduce the above 9e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * copyright notice, this list of conditions and the following 10e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * disclaimer in the documentation and/or other materials provided 11e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * with the distribution. 12e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * * Neither the name of The Linux Foundation, nor the names of its 13e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * contributors may be used to endorse or promote products derived 14e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * from this software without specific prior written permission. 15e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * 16e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 17e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 19e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 20e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 26e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti */ 28e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 29e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <stdio.h> 30e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <assert.h> 31e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <errno.h> 32e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <sys/time.h> 33e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <string.h> 34e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <pthread.h> 35e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 36e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <rpc/rpc.h> 37e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <loc_api_rpc_glue.h> 38e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include "loc_api_sync_call.h" 39e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 40e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/* Logging */ 41e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#define LOG_TAG "LocSvc_api_rpc_glue" 42e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti// #define LOG_NDDEBUG 0 43e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#ifndef USE_GLIB 44e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#include <utils/Log.h> 45e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti#endif /* USE_GLIB */ 46e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 47e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*************************************************************************** 48e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * DATA FOR ASYNCHRONOUS RPC PROCESSING 49e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti **************************************************************************/ 50e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletiloc_sync_call_slot_array_s_type loc_sync_data; 51e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 52e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletipthread_mutex_t loc_sync_call_mutex = PTHREAD_MUTEX_INITIALIZER; 53e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletiboolean loc_sync_call_inited = 0; 54e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 55e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 56e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 57e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_api_sync_call_init 58e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 59e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 60e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Initialize this module 61e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 62e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 63e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 64e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 65e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 66e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti none 67e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 68e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 69e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 70e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 71e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 72e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletivoid loc_api_sync_call_init() 73e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 74e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_lock(&loc_sync_call_mutex); 75e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (loc_sync_call_inited == 1) { 76e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&loc_sync_call_mutex); 77e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return; 78e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 79e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_call_inited = 1; 80e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 81e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_data.num_of_slots = LOC_SYNC_CALL_SLOTS_MAX; 82e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 83e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int i; 84e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti for (i = 0; i < loc_sync_data.num_of_slots; i++) 85e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 86e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_call_slot_s_type *slot = &loc_sync_data.slots[i]; 87e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 88e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_init(&slot->lock, NULL); 89e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_cond_init(&slot->loc_cb_arrived_cond, NULL); 90e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 91e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->not_available = 0; 92e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->in_use = 0; 93e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->loc_handle = -1; 94e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->loc_cb_wait_event_mask = 0; /* event to wait */ 95e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->loc_cb_received_event_mask = 0; /* received event */ 96e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 97e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 98e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&loc_sync_call_mutex); 99e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 100e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 101e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 102e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 103e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_api_sync_call_destroy 104e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 105e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 106e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Initialize this module 107e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 108e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 109e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 110e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 111e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 112e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti none 113e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 114e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 115e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 116e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 117e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 118e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletivoid loc_api_sync_call_destroy() 119e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 120e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int i; 121e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 122e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_lock(&loc_sync_call_mutex); 123e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (loc_sync_call_inited == 0) { 124e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&loc_sync_call_mutex); 125e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return; 126e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 127e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_call_inited = 0; 128e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 129e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti for (i = 0; i < loc_sync_data.num_of_slots; i++) 130e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 131e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_call_slot_s_type *slot = &loc_sync_data.slots[i]; 132e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 133e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_lock(&slot->lock); 134e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 135e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->not_available = 1; 136e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 137e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&slot->lock); 138e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 139e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_cond_destroy(&slot->loc_cb_arrived_cond); 140e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_destroy(&slot->lock); 141e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 142e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 143e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&loc_sync_call_mutex); 144e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 145e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 146e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 147e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 148e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_match_callback 149e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 150e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 151e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Checks if an awaited event has arrived 152e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 153e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 154e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti TRUE arrived 155e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti FALSE not matching 156e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 157e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 158e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletistatic boolean loc_match_callback( 159e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_event_mask_type wait_mask, 160e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_ioctl_e_type wait_ioctl, 161e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_event_mask_type event_mask, 162e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti const rpc_loc_event_payload_u_type *callback_payload 163e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti) 164e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 165e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if ((event_mask & wait_mask) == 0) return FALSE; 166e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 167e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (event_mask != RPC_LOC_EVENT_IOCTL_REPORT || wait_ioctl == 0 || 168e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ( (callback_payload != NULL) && 169e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti callback_payload->rpc_loc_event_payload_u_type_u.ioctl_report.type == wait_ioctl) ) 170e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return TRUE; 171e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 172e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return FALSE; 173e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 174e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 175e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 176e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 177e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_api_callback_process_sync_call 178e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 179e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 180e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Wakes up blocked API calls to check if the needed callback has arrived 181e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 182e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 183e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 184e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 185e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 186e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti none 187e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 188e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 189e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 190e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 191e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 192e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletivoid loc_api_callback_process_sync_call( 193e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_client_handle_type loc_handle, /* handle of the client */ 194e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_event_mask_type loc_event, /* event mask */ 195e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti const rpc_loc_event_payload_u_type* loc_event_payload /* payload */ 196e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti) 197e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 198e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int i; 199e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 200e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGV("loc_handle = 0x%lx, loc_event = 0x%lx", loc_handle, loc_event); 201e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti for (i = 0; i < loc_sync_data.num_of_slots; i++) 202e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 203e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_call_slot_s_type *slot = &loc_sync_data.slots[i]; 204e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 205e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_lock(&slot->lock); 206e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 207e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (slot->in_use && 208e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->signal_sent == 0 && 209e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->loc_handle == loc_handle && 210e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_match_callback(slot->loc_cb_wait_event_mask, slot->ioctl_type, loc_event, loc_event_payload)) 211e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 212e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti memcpy(&slot->loc_cb_received_payload, loc_event_payload, sizeof (rpc_loc_event_payload_u_type)); 213e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 214e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->loc_cb_received_event_mask = loc_event; 215e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 216e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGV("signal slot %d in_use %d, loc_handle 0x%lx, event_mask 0x%1x, ioctl_type %d", i, slot->in_use, slot->loc_handle, (int) slot->loc_cb_wait_event_mask, (int) slot->ioctl_type); 217e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_cond_signal(&slot->loc_cb_arrived_cond); 218e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->signal_sent = 1; 219e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 220e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&slot->lock); 221e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti break; 222e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } else { 223e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti /* do nothing */ 224e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 225e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 226e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&slot->lock); 227e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 228e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 229e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 230e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 231e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 232e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_lock_a_slot 233e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 234e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 235e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Allocates a buffer slot for the synchronous API call 236e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 237e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 238e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 239e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 240e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 241e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Select ID (>=0) : successful 242e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti -1 : buffer full 243e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 244e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 245e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 246e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 247e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 248e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletistatic int loc_lock_a_slot() 249e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 250e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int i, select_id = -1; /* no free buffer */ 251e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 252e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti for (i = 0; i < loc_sync_data.num_of_slots; i++) 253e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 254e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_call_slot_s_type *slot = &loc_sync_data.slots[i]; 255e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (pthread_mutex_trylock(&slot->lock) == EBUSY) 256e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 257e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGV("trylock EBUSY : %d", i); 258e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti continue; 259e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 260e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 261e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (!slot->in_use && !slot->not_available) 262e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 263e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti select_id = i; 264e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti /* Return from here and leave the mutex locked. 265e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti * will unlock it in loc_unlock_slot() 266e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti */ 267e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti break; 268e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 269e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti /* ALOGV("slot %d in_use = %d, not_available = %d : %d", i, slot->in_use, slot->not_available, i); */ 270e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&slot->lock); 271e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 272e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 273e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return select_id; 274e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 275e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 276e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 277e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 278e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_unlock_slot 279e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 280e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 281e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Unlocks a buffer slot 282e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 283e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 284e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 285e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 286e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 287e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti None 288e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 289e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 290e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 291e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 292e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 293e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletistatic void loc_unlock_slot(int select_id) 294e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 295e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_unlock(&loc_sync_data.slots[select_id].lock); 296e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 297e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 298e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 299e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 300e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_lock_slot 301e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 302e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 303e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Locks a specific slot that was previously locked from loc_lock_a_slot 304e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 305e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 306e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 307e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 308e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 309e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti None 310e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 311e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 312e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 313e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 314e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 315e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletistatic void loc_lock_slot(int select_id) 316e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 317e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti pthread_mutex_lock(&loc_sync_data.slots[select_id].lock); 318e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 319e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 320e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 321e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 322e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_set_slot_in_use 323e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 324e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 325e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Sets the in_use flag of slot to true or false. 326e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Should be called only after the slot is locked 327e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 328e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 329e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 330e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 331e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 332e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti None 333e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 334e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 335e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 336e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 337e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 338e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletistatic void loc_set_slot_in_use(int select_id, boolean in_use) 339e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 340e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_data.slots[select_id].in_use = in_use; 341e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (in_use == 1) 342e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_data.slots[select_id].signal_sent = 0; 343e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 344e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 345e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 346e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 347e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_api_save_callback 348e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 349e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 350e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Selects which callback or IOCTL event to wait for. 351e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 352e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti The event_mask specifies the event(s). If it is RPC_LOC_EVENT_IOCTL_REPORT, 353e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti then ioctl_type specifies the IOCTL event. 354e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 355e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti If ioctl_type is non-zero, RPC_LOC_EVENT_IOCTL_REPORT is automatically added. 356e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 357e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 358e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 359e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 360e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 361e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Select ID (>=0) : successful 362e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti -1 : out of buffer 363e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 364e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 365e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 366e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 367e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 368e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletistatic void loc_api_save_callback( 369e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int select_id, /* Selected slot */ 370e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_client_handle_type loc_handle, /* Client handle */ 371e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_event_mask_type event_mask, /* Event mask to wait for */ 372e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_ioctl_e_type ioctl_type /* IOCTL type to wait for */ 373e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti) 374e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 375e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_call_slot_s_type *slot = &loc_sync_data.slots[select_id]; 376e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 377e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->loc_handle = loc_handle; 378e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 379e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->loc_cb_wait_event_mask = event_mask; 380e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti slot->ioctl_type = ioctl_type; 381e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (ioctl_type) slot->loc_cb_wait_event_mask |= RPC_LOC_EVENT_IOCTL_REPORT; 382e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 383e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return; 384e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 385e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 386e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 387e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 388e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_save_user_payload 389e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 390e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 391e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Saves received payload into user data structures 392e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 393e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 394e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti None 395e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 396e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 397e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletistatic void loc_save_user_payload( 398e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_event_payload_u_type *user_cb_payload, 399e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_ioctl_callback_s_type *user_ioctl_buffer, 400e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti const rpc_loc_event_payload_u_type *received_cb_payload 401e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti) 402e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 403e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (user_cb_payload) 404e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 405e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti memcpy(user_cb_payload, received_cb_payload, 406e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti sizeof (rpc_loc_event_payload_u_type)); 407e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 408e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (user_ioctl_buffer) 409e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 410e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti memcpy(user_ioctl_buffer, 411e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti &received_cb_payload->rpc_loc_event_payload_u_type_u.ioctl_report, 412e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti sizeof *user_ioctl_buffer); 413e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 414e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 415e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 416e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 417e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 418e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_api_wait_callback 419e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 420e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 421e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Waits for a selected callback. The wait expires in timeout_seconds seconds. 422e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 423e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti If the function is called before an existing wait has finished, it will 424e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti immediately return EBUSY. 425e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 426e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 427e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 428e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 429e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 430e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti RPC_LOC_API_SUCCESS if successful (0) 431e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti RPC_LOC_API_TIMEOUT if timed out 432e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti RPC_LOC_API_ENGINE_BUSY if already in a wait 433e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti RPC_LOC_API_INVALID_PARAMETER if callback is not yet selected 434e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 435e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 436e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 437e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 438e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 439e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletistatic int loc_api_wait_callback( 440e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int select_id, /* ID from loc_select_callback() */ 441e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int timeout_seconds, /* Timeout in this number of seconds */ 442e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_event_payload_u_type *callback_payload, /* Pointer to callback payload buffer, can be NULL */ 443e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_ioctl_callback_s_type *ioctl_payload /* Pointer to IOCTL payload, can be NULL */ 444e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti) 445e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 446e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int ret_val = RPC_LOC_API_SUCCESS; /* the return value of this function: 0 = no error */ 447e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int rc = 0; /* return code from pthread calls */ 448e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 449e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti struct timespec expire_time; 450e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 451e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_sync_call_slot_s_type *slot = &loc_sync_data.slots[select_id]; 452e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 453e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti clock_gettime(CLOCK_REALTIME, &expire_time); 454e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti expire_time.tv_sec += timeout_seconds; 455e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 456e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti /* Waiting */ 457e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti while (slot->signal_sent == 0 && rc != ETIMEDOUT) { 458e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rc = pthread_cond_timedwait(&slot->loc_cb_arrived_cond, 459e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti &slot->lock, &expire_time); 460e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 461e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 462e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (rc == ETIMEDOUT) 463e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 464e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ret_val = RPC_LOC_API_TIMEOUT; /* Timed out */ 465e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGE("TIMEOUT: %d", select_id); 466e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 467e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti else { 468e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti /* Obtained the first awaited callback */ 469e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ret_val = RPC_LOC_API_SUCCESS; /* Successful */ 470e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_save_user_payload(callback_payload, ioctl_payload, &slot->loc_cb_received_payload); 471e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 472e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 473e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return ret_val; 474e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 475e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 476e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti/*=========================================================================== 477e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 478e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiFUNCTION loc_api_sync_ioctl 479e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 480e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDESCRIPTION 481e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Synchronous IOCTL call (reentrant version) 482e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 483e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiDEPENDENCIES 484e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 485e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 486e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiRETURN VALUE 487e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti Loc API error code (0 = success) 488e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 489e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore PasupuletiSIDE EFFECTS 490e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti N/A 491e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 492e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti===========================================================================*/ 493e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuletiint loc_api_sync_ioctl 494e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti( 495e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_client_handle_type handle, 496e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_ioctl_e_type ioctl_type, 497e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_ioctl_data_u_type* ioctl_data_ptr, 498e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti uint32 timeout_msec, 499e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_ioctl_callback_s_type *cb_data_ptr 500e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti) 501e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti{ 502e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int rc = -1; 503e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti int select_id; 504e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rpc_loc_ioctl_callback_s_type callback_data; 505e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 506e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti select_id = loc_lock_a_slot(); 507e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 508e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (select_id < 0 || select_id >= loc_sync_data.num_of_slots) 509e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 510e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGE("slot not available ioctl_type = %s", 511e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_get_ioctl_type_name(ioctl_type)); 512e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return rc; 513e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 514e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 515e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_set_slot_in_use(select_id, 1); // set slot in use to true 516e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 517e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti // Select the callback we are waiting for 518e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_api_save_callback(select_id, handle, 0, ioctl_type); 519e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 520e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_unlock_slot(select_id); // slot is unlocked, but in_use is still true 521e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 522e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti // we want to avoid keeping the slot locked during the loc_ioctl because the rpc 523e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti // framework will also lock a different mutex during this call, and typically 524e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti // locking two different mutexes at the same time can lead to deadlock. 525e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rc = loc_ioctl(handle, ioctl_type, ioctl_data_ptr); 526e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 527e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_lock_slot(select_id); 528e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 529e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (rc != RPC_LOC_API_SUCCESS) 530e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 531e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGE("loc_ioctl failed select_id = %d, ioctl_type %s, returned %s", 532e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti select_id, loc_get_ioctl_type_name(ioctl_type), loc_get_ioctl_status_name(rc)); 533e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 534e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti else { 535e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGV("select_id = %d, ioctl_type %d, returned RPC_LOC_API_SUCCESS", 536e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti select_id, ioctl_type); 537e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti // Wait for the callback of loc_ioctl 538e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if ((rc = loc_api_wait_callback(select_id, timeout_msec / 1000, NULL, &callback_data)) != 0) 539e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 540e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti // Callback waiting failed 541e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGE("callback wait failed select_id = %d, ioctl_type %s, returned %s", 542e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti select_id, loc_get_ioctl_type_name(ioctl_type), loc_get_ioctl_status_name(rc)); 543e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 544e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti else 545e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 546e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (cb_data_ptr) memcpy(cb_data_ptr, &callback_data, sizeof *cb_data_ptr); 547e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti if (callback_data.status != RPC_LOC_API_SUCCESS) 548e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti { 549e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti rc = callback_data.status; 550e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGE("callback status failed select_id = %d, ioctl_type %s, returned %s", 551e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti select_id, loc_get_ioctl_type_name(ioctl_type), loc_get_ioctl_status_name(rc)); 552e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } else { 553e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti ALOGV("callback status success select_id = %d, ioctl_type %d, returned %d", 554e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti select_id, ioctl_type, rc); 555e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } 556e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } /* wait callback */ 557e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti } /* loc_ioctl */ 558e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 559e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_set_slot_in_use(select_id, 0); // set slot in use to false 560e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti loc_unlock_slot(select_id); 561e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 562e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti return rc; 563e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti} 564e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 565e7c98642e1e156ea6cde1238cd0006f669cfb696Uday Kishore Pasupuleti 566