forked from Qortal/Brooklyn
83 lines
3.3 KiB
C
83 lines
3.3 KiB
C
/*
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Copyright (c) 2012, Broadcom Europe Ltd
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All rights reserved.
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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 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 copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if !defined(WFC_CLIENT_IPC_H)
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#define WFC_CLIENT_IPC_H
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#include "interface/vcos/vcos.h"
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#include "interface/khronos/wf/wfc_ipc.h"
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/** Send a message and wait for a reply.
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*
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* @param msg message to send
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* @param size length of message, including header
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* @param dest destination for reply data, or NULL
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* @param destlen size of destination, updated with actual length
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* @return Success or the error code for failure.
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*/
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VCOS_STATUS_T wfc_client_ipc_sendwait(WFC_IPC_MSG_HEADER_T *msg,
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size_t size,
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void *dest,
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size_t *destlen);
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/** Send a message and do not wait for a reply.
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*
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* @param msg_header message header to send
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* @param size length of message, including header
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* @param msgid message id
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* @return Success or the error code for failure.
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*/
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VCOS_STATUS_T wfc_client_ipc_send(WFC_IPC_MSG_HEADER_T *msg,
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size_t size);
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/** Initialise the OpenWF-C client IPC. If successful, this must be balanced by
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* a call to wfc_client_ipc_deinit(). This must be called at least once before
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* sending a message.
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*
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* @return Success or the error code for failure.
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*/
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VCOS_STATUS_T wfc_client_ipc_init(void);
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/** Deinitialise the OpenWF-C client IPC.
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*
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* @return True if the service has been destroyed, false if there are other
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* users still active.
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*/
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bool wfc_client_ipc_deinit(void);
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/** Increase the keep alive count by one. If it rises from zero, the VideoCore
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* will be prevented from being suspended.
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*/
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void wfc_client_ipc_use_keep_alive(void);
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/** Drop the keep alive count by one. If it reaches zero, the VideoCore may be
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* suspended.
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*/
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void wfc_client_ipc_release_keep_alive(void);
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#endif /* WFC_IPC_H */
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