3be7409a28
BREAKING CHANGE: 支持系统、进程信息获取对外变更： 1.添加"/proc/meminfo" 获取系统内存使用情况 2.添加"/proc/filesystems" 获取文件系统信息 3.添加"/proc/[pid]/meminfo" 获取进程的内存占用信息 4.添加"/proc/[pid]/cpup" 获取进程的CPUP信息 Close #I6AMVG Signed-off-by: zhushengle <zhushengle@huawei.com> Change-Id: I8c1cab0bf956ced0cf16401907d869058d98cfa6
80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2023 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 "proc_fs.h"
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#include "internal.h"
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#include "stdio.h"
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#include "sys/mount.h"
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#include "sys/stat.h"
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#include "los_init.h"
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#ifdef LOSCFG_FS_PROC
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#define PROCFS_MOUNT_POINT "/proc"
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#define PROCFS_MOUNT_POINT_SIZE (sizeof(PROCFS_MOUNT_POINT) - 1)
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void ProcFsInit(void)
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{
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int ret;
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ret = mkdir(PROCFS_MOUNT_POINT, PROCFS_DEFAULT_MODE);
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if (ret < 0) {
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PRINT_ERR("failed to mkdir %s, errno = %d\n", PROCFS_MOUNT_POINT, get_errno());
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return;
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}
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ret = mount(NULL, PROCFS_MOUNT_POINT, "procfs", 0, NULL);
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if (ret) {
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PRINT_ERR("mount procfs err %d\n", ret);
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return;
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}
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ProcMountsInit();
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#if defined(LOSCFG_SHELL_CMD_DEBUG) && defined(LOSCFG_KERNEL_VM)
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ProcVmmInit();
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#endif
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ProcProcessInit();
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ProcUptimeInit();
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ProcFsCacheInit();
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ProcFdInit();
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#ifdef LOSCFG_KERNEL_PM
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ProcPmInit();
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#endif
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#ifdef LOSCFG_PROC_PROCESS_DIR
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ProcSysMemInfoInit();
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ProcFileSysInit();
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#endif
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}
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LOS_MODULE_INIT(ProcFsInit, LOS_INIT_LEVEL_KMOD_EXTENDED);
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#endif
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