Documentation
¶
Overview ¶
Package binary implements simple translation between numbers and byte sequences and encoding and decoding of varints.
Numbers are translated by reading and writing fixed-size values. A fixed-size value is either a fixed-size arithmetic type (int8, uint8, int16, float32, complex64, ...) or an array or struct containing only fixed-size values.
The varint functions encode and decode single integer values using a variable-length encoding; smaller values require fewer bytes. For a specification, see http://code.google.com/apis/protocolbuffers/docs/encoding.html.
This package favors simplicity over efficiency. Clients that require high-performance serialization, especially for large data structures, should look at more advanced solutions such as the encoding/gob package or protocol buffers.
Index ¶
- Constants
- Variables
- func DiskIOCounters() (map[string]DiskIOCountersStat, error)
- func GetDiskSerialNumber(name string) string
- func Read(r io.Reader, order ByteOrder, data interface{}) error
- func Size(v interface{}) int
- func Write(w io.Writer, order ByteOrder, data interface{}) error
- type ByteOrder
- type DiskIOCountersStat
- type DiskPartitionStat
- type DiskUsageStat
Constants ¶
const ( // man statfs ADFS_SUPER_MAGIC = 0xadf5 AFFS_SUPER_MAGIC = 0xADFF BDEVFS_MAGIC = 0x62646576 BEFS_SUPER_MAGIC = 0x42465331 BFS_MAGIC = 0x1BADFACE BINFMTFS_MAGIC = 0x42494e4d BTRFS_SUPER_MAGIC = 0x9123683E CGROUP_SUPER_MAGIC = 0x27e0eb CIFS_MAGIC_NUMBER = 0xFF534D42 CODA_SUPER_MAGIC = 0x73757245 COH_SUPER_MAGIC = 0x012FF7B7 CRAMFS_MAGIC = 0x28cd3d45 DEBUGFS_MAGIC = 0x64626720 DEVFS_SUPER_MAGIC = 0x1373 DEVPTS_SUPER_MAGIC = 0x1cd1 EFIVARFS_MAGIC = 0xde5e81e4 EFS_SUPER_MAGIC = 0x00414A53 EXT_SUPER_MAGIC = 0x137D EXT2_OLD_SUPER_MAGIC = 0xEF51 EXT2_SUPER_MAGIC = 0xEF53 EXT3_SUPER_MAGIC = 0xEF53 EXT4_SUPER_MAGIC = 0xEF53 FUSE_SUPER_MAGIC = 0x65735546 FUTEXFS_SUPER_MAGIC = 0xBAD1DEA HFS_SUPER_MAGIC = 0x4244 HOSTFS_SUPER_MAGIC = 0x00c0ffee HPFS_SUPER_MAGIC = 0xF995E849 HUGETLBFS_MAGIC = 0x958458f6 ISOFS_SUPER_MAGIC = 0x9660 JFFS2_SUPER_MAGIC = 0x72b6 JFS_SUPER_MAGIC = 0x3153464a MINIX_SUPER_MAGIC = 0x137F /* orig. minix */ MINIX_SUPER_MAGIC2 = 0x138F /* 30 char minix */ MINIX2_SUPER_MAGIC = 0x2468 /* minix V2 */ MINIX2_SUPER_MAGIC2 = 0x2478 /* minix V2, 30 char names */ MINIX3_SUPER_MAGIC = 0x4d5a /* minix V3 fs, 60 char names */ MQUEUE_MAGIC = 0x19800202 MSDOS_SUPER_MAGIC = 0x4d44 NCP_SUPER_MAGIC = 0x564c NFS_SUPER_MAGIC = 0x6969 NILFS_SUPER_MAGIC = 0x3434 NTFS_SB_MAGIC = 0x5346544e OCFS2_SUPER_MAGIC = 0x7461636f OPENPROM_SUPER_MAGIC = 0x9fa1 PIPEFS_MAGIC = 0x50495045 PROC_SUPER_MAGIC = 0x9fa0 PSTOREFS_MAGIC = 0x6165676C QNX4_SUPER_MAGIC = 0x002f QNX6_SUPER_MAGIC = 0x68191122 RAMFS_MAGIC = 0x858458f6 REISERFS_SUPER_MAGIC = 0x52654973 ROMFS_MAGIC = 0x7275 SELINUX_MAGIC = 0xf97cff8c SMACK_MAGIC = 0x43415d53 SMB_SUPER_MAGIC = 0x517B SOCKFS_MAGIC = 0x534F434B SQUASHFS_MAGIC = 0x73717368 SYSFS_MAGIC = 0x62656572 SYSV2_SUPER_MAGIC = 0x012FF7B6 SYSV4_SUPER_MAGIC = 0x012FF7B5 TMPFS_MAGIC = 0x01021994 UDF_SUPER_MAGIC = 0x15013346 UFS_MAGIC = 0x00011954 USBDEVICE_SUPER_MAGIC = 0x9fa2 V9FS_MAGIC = 0x01021997 VXFS_SUPER_MAGIC = 0xa501FCF5 XENFS_SUPER_MAGIC = 0xabba1974 XENIX_SUPER_MAGIC = 0x012FF7B4 XFS_SUPER_MAGIC = 0x58465342 AFS_SUPER_MAGIC = 0x5346414F AUFS_SUPER_MAGIC = 0x61756673 ANON_INODE_FS_SUPER_MAGIC = 0x09041934 CEPH_SUPER_MAGIC = 0x00C36400 ECRYPTFS_SUPER_MAGIC = 0xF15F FAT_SUPER_MAGIC = 0x4006 FHGFS_SUPER_MAGIC = 0x19830326 FUSEBLK_SUPER_MAGIC = 0x65735546 FUSECTL_SUPER_MAGIC = 0x65735543 GFS_SUPER_MAGIC = 0x1161970 GPFS_SUPER_MAGIC = 0x47504653 MTD_INODE_FS_SUPER_MAGIC = 0x11307854 INOTIFYFS_SUPER_MAGIC = 0x2BAD1DEA ISOFS_R_WIN_SUPER_MAGIC = 0x4004 ISOFS_WIN_SUPER_MAGIC = 0x4000 JFFS_SUPER_MAGIC = 0x07C0 KAFS_SUPER_MAGIC = 0x6B414653 LUSTRE_SUPER_MAGIC = 0x0BD00BD0 NFSD_SUPER_MAGIC = 0x6E667364 PANFS_SUPER_MAGIC = 0xAAD7AAEA RPC_PIPEFS_SUPER_MAGIC = 0x67596969 SECURITYFS_SUPER_MAGIC = 0x73636673 UFS_BYTESWAPPED_SUPER_MAGIC = 0x54190100 VMHGFS_SUPER_MAGIC = 0xBACBACBC VZFS_SUPER_MAGIC = 0x565A4653 ZFS_SUPER_MAGIC = 0x2FC12FC1 )
const (
SectorSize = 512
)
Variables ¶
var BigEndian bigEndian
BigEndian is the big-endian implementation of ByteOrder.
var LittleEndian littleEndian
LittleEndian is the little-endian implementation of ByteOrder.
Functions ¶
func DiskIOCounters ¶
func DiskIOCounters() (map[string]DiskIOCountersStat, error)
func GetDiskSerialNumber ¶
func Read ¶
Read reads structured binary data from r into data. Data must be a pointer to a fixed-size value or a slice of fixed-size values. Bytes read from r are decoded using the specified byte order and written to successive fields of the data. When reading into structs, the field data for fields with blank (_) field names is skipped; i.e., blank field names may be used for padding. When reading into a struct, all non-blank fields must be exported.
func Size ¶
func Size(v interface{}) int
Size returns how many bytes Write would generate to encode the value v, which must be a fixed-size value or a slice of fixed-size values, or a pointer to such data. If v is neither of these, Size returns -1.
func Write ¶
Write writes the binary representation of data into w. Data must be a fixed-size value or a slice of fixed-size values, or a pointer to such data. Bytes written to w are encoded using the specified byte order and read from successive fields of the data. When writing structs, zero values are written for fields with blank (_) field names.
Types ¶
type ByteOrder ¶
type ByteOrder interface {
Uint16([]byte) uint16
Uint32([]byte) uint32
Uint64([]byte) uint64
PutUint16([]byte, uint16)
PutUint32([]byte, uint32)
PutUint64([]byte, uint64)
String() string
}
A ByteOrder specifies how to convert byte sequences into 16-, 32-, or 64-bit unsigned integers.
type DiskIOCountersStat ¶
type DiskIOCountersStat struct {
ReadCount uint64 `json:"read_count"`
WriteCount uint64 `json:"write_count"`
ReadBytes uint64 `json:"read_bytes"`
WriteBytes uint64 `json:"write_bytes"`
ReadTime uint64 `json:"read_time"`
WriteTime uint64 `json:"write_time"`
Name string `json:"name"`
IoTime uint64 `json:"io_time"`
SerialNumber string `json:"serial_number"`
}
func (DiskIOCountersStat) String ¶
func (d DiskIOCountersStat) String() string
type DiskPartitionStat ¶
type DiskPartitionStat struct {
Device string `json:"device"`
Mountpoint string `json:"mountpoint"`
Fstype string `json:"fstype"`
Opts string `json:"opts"`
}
func DiskPartitions ¶
func DiskPartitions(all bool) ([]DiskPartitionStat, error)
Get disk partitions. should use setmntent(3) but this implement use /etc/mtab file
func (DiskPartitionStat) String ¶
func (d DiskPartitionStat) String() string
type DiskUsageStat ¶
type DiskUsageStat struct {
Path string `json:"path"`
Fstype string `json:"fstype"`
Total uint64 `json:"total"`
Free uint64 `json:"free"`
Used uint64 `json:"used"`
UsedPercent float64 `json:"used_percent"`
InodesTotal uint64 `json:"inodes_total"`
InodesUsed uint64 `json:"inodes_used"`
InodesFree uint64 `json:"inodes_free"`
InodesUsedPercent float64 `json:"inodes_used_percent"`
}
func DiskUsage ¶
func DiskUsage(path string) (*DiskUsageStat, error)
func (DiskUsageStat) String ¶
func (d DiskUsageStat) String() string
Source Files