forked from Qortal/Brooklyn
93 lines
2.9 KiB
C
93 lines
2.9 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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#ifndef KHRN_CLIENT_CACHE_H
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#define KHRN_CLIENT_CACHE_H
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//#define WORKAROUND_HW2551 // define to pad header structure to 32 bytes
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#include "interface/khronos/common/khrn_client_pointermap.h"
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#include "interface/khronos/common/khrn_client.h"
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typedef struct CACHE_LINK_S {
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struct CACHE_LINK_S *prev;
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struct CACHE_LINK_S *next;
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} CACHE_LINK_T;
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typedef struct {
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CACHE_LINK_T link;
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int len;
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int key;
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#ifdef WORKAROUND_HW2551
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uint8_t pad[16];
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#endif
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//on the server side
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//we store a KHRN_INTERLOCK_T in the
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//same space as this struct
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uint8_t pad_for_interlock[24];
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uint8_t data[1];
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} CACHE_ENTRY_T;
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typedef struct {
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uint8_t *tree;
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uint8_t *data;
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int client_depth;
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int server_depth;
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CACHE_LINK_T start;
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CACHE_LINK_T end;
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KHRN_POINTER_MAP_T map;
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} KHRN_CACHE_T;
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#define CACHE_LOG2_BLOCK_SIZE 6
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#define CACHE_MAX_DEPTH 16
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#define CACHE_SIG_ATTRIB_0 0
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#define CACHE_SIG_ATTRIB_1 1
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#define CACHE_SIG_ATTRIB_2 2
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#define CACHE_SIG_ATTRIB_3 3
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#define CACHE_SIG_ATTRIB_4 4
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#define CACHE_SIG_ATTRIB_5 5
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#define CACHE_SIG_ATTRIB_6 6
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#define CACHE_SIG_ATTRIB_7 7
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#define CACHE_SIG_INDEX 8
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extern int khrn_cache_init(KHRN_CACHE_T *cache);
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extern void khrn_cache_term(KHRN_CACHE_T *cache);
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extern int khrn_cache_lookup(CLIENT_THREAD_STATE_T *thread, KHRN_CACHE_T *cache, const void *data, int len, int sig);
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extern int khrn_cache_get_entries(KHRN_CACHE_T *cache);
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#endif
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