nv-file-proc

• several simple function to get info from /proc/.. of linux

install

• npm install nv-file-proc

usage

  const x = require("nv-file-proc")

example

        > await x.pids()
        [
            1,   2,   4,   6,   7,   8,   9,  10,  11,  12,  13,  14,
           15,  16,  18,  19,  20,  21,  22,  24,  25,  26,  27,  28,
           29,  30,  31,  32,  33,  34,  35,  36,  37,  41,  42,  43,
           85,  86,  87,  88,  89,  90,  96, 105, 122, 174, 175, 213,
          214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225,
          226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237,
          238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249,
          250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261,
          262, 263, 264, 265,
          ... 76 more items
        ]
        >


        > await x.fdinfos(1)
        [
          _Ele { ino: 19853, path: '/proc/1/fdinfo', type: 'dir' },
          _Ele {
            ino: 2029548,
            path: '/proc/1/fdinfo/0',
            type: 'file',
            data: { pos: '0', flags: '0100002', mnt_id: '24' }
          },
          _Ele {
            ino: 2029549,
            path: '/proc/1/fdinfo/1',
            type: 'file',
            data: { pos: '0', flags: '0100002', mnt_id: '24' }
          },
          _Ele {
            ino: 2029556,
            path: '/proc/1/fdinfo/10',
            type: 'file',
            data: {
              pos: '0',
              flags: '02000002',
              mnt_id: '13',
              tfd: '       12 events'
            }
          },
          _Ele {
            ino: 2031649,
            path: '/proc/1/fdinfo/100',
            type: 'file',
            data: { pos: '0', flags: '02004002', mnt_id: '9' }
          },
        ......



        > await x.stack(1)
        [
          _Ele {
            ino: 2031800,
            path: '/proc/1/stack',
            type: 'file',
            data: {
              '[<0>] ep_poll+0x29c/0x3a0': undefined,
              '[<0>] SyS_epoll_wait+0xc6/0xe0': undefined,
              '[<0>] do_syscall_64+0x73/0x130': undefined,
              '[<0>] entry_SYSCALL_64_after_hwframe+0x41/0xa6': undefined,
              '[<0>] 0xffffffffffffffff': undefined
            }
          },
          undefined
        ]



        > await x.io()
        [
          _Ele {
            ino: 2031146,
            path: '/proc/90544/io',
            type: 'file',
            data: {
              rchar: ' 306918',
              wchar: ' 102114',
              syscr: ' 616',
              syscw: ' 737',
              read_bytes: ' 0',
              write_bytes: ' 49152',
              cancelled_write_bytes: ' 0'
            }
          },
          undefined
        ]
        > await x.status()
        [
          _Ele {
            ino: 2031834,
            path: '/proc/90544/status',
            type: 'file',
            data: {
              Name: 'node',
              Umask: '0022',
              State: 'R (running)',
              Tgid: '90544',
              Ngid: '0',
              Pid: '90544',
              PPid: '90346',
              TracerPid: '0',
              Uid: '0\t0\t0\t0',
              Gid: '0\t0\t0\t0',
              FDSize: '256',
              Groups: '0 ',
              NStgid: '90544',
              NSpid: '90544',
              NSpgid: '90544',
              NSsid: '90346',
              VmPeak: '  702464 kB',
              VmSize: '  640512 kB',
              VmLck: '       0 kB',
              VmPin: '       0 kB',
              VmHWM: '   45392 kB',
              VmRSS: '   44080 kB',
              RssAnon: '   10876 kB',
              RssFile: '   33204 kB',
              RssShmem: '       0 kB',
              VmData: '   93404 kB',
              VmStk: '     132 kB',
              VmExe: '   67956 kB',
              VmLib: '    6296 kB',
              VmPTE: '     728 kB',
              VmSwap: '       0 kB',
              HugetlbPages: '       0 kB',
              CoreDumping: '0',
              Threads: '11',
              SigQ: '0/7615',
              SigPnd: '0000000000000000',
              ShdPnd: '0000000000000000',
              SigBlk: '0000000000000000',
              SigIgn: '0000000001001000',
              SigCgt: '0000000188004602',
              CapInh: '0000000000000000',
              CapPrm: '0000003fffffffff',
              CapEff: '0000003fffffffff',
              CapBnd: '0000003fffffffff',
              CapAmb: '0000000000000000',
              NoNewPrivs: '0',
              Seccomp: '0',
              Speculation_Store_Bypass: 'vulnerable',
              Cpus_allowed: 'ffffffff,ffffffff,ffffffff,ffffffff',
              Cpus_allowed_list: '0-127',
              Mems_allowed: '00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001',
              Mems_allowed_list: '0',
              voluntary_ctxt_switches: '177',
              nonvoluntary_ctxt_switches: '627'
            }
          },
          undefined
        ]
        >

APIS

        async function pids() {
        async function _eng(proc_path,with_full_info) {
        async function fdinfos(pid,with_full_info=false) {
        async function stack(pid,with_full_info=false) {
        async function io(pid,with_full_info=false) {
        async function status(pid,with_full_info=false) {

LICENSE

• ISC