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/*
*
* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _NSFW_RING_FUN_H_
#define _NSFW_RING_FUN_H_
#include <stdint.h>
#include "nsfw_mem_api.h"
#include "nsfw_ring_data.h"
#include "nsfw_branch_prediction.h"
#include "pid_common.h"
/*
for nstack I advise addrbase set to lowest of mmaped hugepage Addr.
to simple:
1. ring element is from mmaped mem, set Addrbase to 0x7fffffffffff - 0xffffffffff is OK;
1. ring element is from heap, set Addrbase to NULL is ok;
*/
static inline void nsfw_mem_ring_init(struct nsfw_mem_ring *ring,
unsigned int size, void *addrbase,
unsigned char memtype,
unsigned char flag)
{
unsigned int loop = 0;
if (!ring)
{
return;
}
ring->prod.head = 0;
ring->prod.tail = 0;
ring->cons.head = 0;
ring->cons.tail = 0;
ring->size = size;
ring->eltsize = 0;
ring->mask = size - 1;
ring->memtype = memtype;
ring->ringflag = flag;
ring->prodtflag = ring->prodhflag = get_sys_pid();
ring->conshflag = ring->constflag = get_sys_pid();
/*if shmem, addrbase already changed to primary memory address */
ring->Addrbase = addrbase;
ring->overflow_count = 0;
ring->overflow_time.tv_sec = 0;
ring->overflow_time.tv_usec = 0;
/*init Ring */
for (loop = 0; loop < size; loop++)
{
/*
for a empty ring, version is the mapping head val - size
so the empty ring's ver is loop-size;
*/
ring->ring[loop].data_s.ver = (loop - size);
ring->ring[loop].data_s.val = 0;
}
}
/*
another way to init Pool while no continuous space
1. init a empt rtp_perf_ring
2. add element to PerRing.
*/
static inline void nsfw_mem_pool_head_init(struct nsfw_mem_ring *ring,
unsigned int size,
unsigned int eltsize,
void *addrbase,
nsfw_mem_type memtype,
nsfw_mpool_type flag)
{
ring->prod.head = size;
ring->prod.tail = size;
ring->cons.head = 0;
ring->cons.tail = 0;
ring->size = size;
ring->eltsize = eltsize;
ring->mask = size - 1;
ring->memtype = memtype;
ring->ringflag = flag;
ring->prodtflag = ring->prodhflag = get_sys_pid();
ring->conshflag = ring->constflag = get_sys_pid();
/*if shmem, addrbase already changed to primary memory address */
ring->Addrbase = addrbase;
ring->overflow_count = 0;
ring->overflow_time.tv_sec = 0;
ring->overflow_time.tv_usec = 0;
return;
}
#define NSFW_RING_FLAG_CHECK_RET(handle, desc) {\
if (((struct nsfw_mem_ring*)mhandle)->ringflag >= NSFW_MPOOL_TYPEMAX) \
{ \
NSRTP_LOGERR("invalid ring]desc=%s,ringflag=%d", desc, ((struct nsfw_mem_ring*)mhandle)->ringflag); \
return 0; \
} \
}
#endif /*_NSFW_RING_FUN_H_*/
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