70 lines
2.7 KiB
C
70 lines
2.7 KiB
C
/*
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* Copyright (c) 2023-2023 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "internal.h"
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#include "proc_fs.h"
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#include "vnode.h"
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#include "los_memory.h"
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#include "los_vm_filemap.h"
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#include "los_memory_pri.h"
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static int SysMemInfoFill(struct SeqBuf *seqBuf, void *arg)
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{
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(void)arg;
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LOS_MEM_POOL_STATUS mem = {0};
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if (LOS_MemInfoGet(m_aucSysMem0, &mem) == LOS_NOK) {
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return -EBADF;
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}
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(void)LosBufPrintf(seqBuf, "\nUsedSize: %u byte\n", mem.totalUsedSize);
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(void)LosBufPrintf(seqBuf, "FreeSize: %u byte\n", mem.totalFreeSize);
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(void)LosBufPrintf(seqBuf, "MaxFreeNodeSize: %u byte\n", mem.maxFreeNodeSize);
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(void)LosBufPrintf(seqBuf, "UsedNodeNum: %u\n", mem.usedNodeNum);
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(void)LosBufPrintf(seqBuf, "FreeNodeNum: %u\n", mem.freeNodeNum);
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#ifdef LOSCFG_MEM_WATERLINE
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(void)LosBufPrintf(seqBuf, "UsageWaterLine: %u byte\n", mem.usageWaterLine);
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#endif
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return 0;
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}
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static const struct ProcFileOperations SYS_MEMINFO_PROC_FOPS = {
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.read = SysMemInfoFill,
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};
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void ProcSysMemInfoInit(void)
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{
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struct ProcDirEntry *pde = CreateProcEntry("meminfo", 0, NULL);
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if (pde == NULL) {
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PRINT_ERR("create mem_info error!\n");
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return;
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}
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pde->procFileOps = &SYS_MEMINFO_PROC_FOPS;
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}
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