91 lines
3.6 KiB
C
91 lines
3.6 KiB
C
/* Copyright (c) 2011, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LOC_API_CB_SYNC_H
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#define LOC_API_CB_SYNC_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include "loc_api_rpc_glue.h"
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#define LOC_SYNC_CALL_SLOTS_MAX 8
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typedef struct {
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pthread_mutex_t lock;
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/* Client ID */
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rpc_loc_client_handle_type loc_handle;
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/* Callback waiting conditional variable */
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pthread_cond_t loc_cb_arrived_cond;
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/* Callback waiting data block, protected by loc_cb_data_mutex */
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boolean in_use;
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boolean signal_sent;
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boolean not_available;
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rpc_loc_event_mask_type loc_cb_wait_event_mask; /* event to wait for */
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rpc_loc_ioctl_e_type ioctl_type; /* ioctl to wait for */
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rpc_loc_event_payload_u_type loc_cb_received_payload; /* received payload */
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rpc_loc_event_mask_type loc_cb_received_event_mask; /* received event */
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} loc_sync_call_slot_s_type;
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typedef struct {
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int num_of_slots;
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loc_sync_call_slot_s_type slots[LOC_SYNC_CALL_SLOTS_MAX];
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} loc_sync_call_slot_array_s_type;
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/* Init function */
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void loc_api_sync_call_init();
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/* Destroy function */
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void loc_api_sync_call_destroy();
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/* Process Loc API callbacks to wake up blocked user threads */
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void loc_api_callback_process_sync_call(
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rpc_loc_client_handle_type loc_handle, /* handle of the client */
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rpc_loc_event_mask_type loc_event, /* event mask */
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const rpc_loc_event_payload_u_type* loc_event_payload /* payload */
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);
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/* Reentrant synchronous IOCTL call, using Loc API return code */
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int loc_api_sync_ioctl
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(
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rpc_loc_client_handle_type handle,
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rpc_loc_ioctl_e_type ioctl_type,
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rpc_loc_ioctl_data_u_type* ioctl_data_ptr,
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uint32 timeout_msec,
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rpc_loc_ioctl_callback_s_type *cb_data_ptr
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);
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#ifdef __cplusplus
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}
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#endif
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#endif /* LOC_API_CB_SYNC_H */
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