GUTS - Go UTilitieS
bytes
- Conversions from/to
[]byteto/from various types. - Various bytes operations.
HexByte:[]bytealias withMarshalJSONandUnmarshalJSONmethods for hex encoding.
error
Error-related utilities.
net
Connect(protoAddr string) (net.Conn, error)
Connect dials the given address and returns a net.Conn. The protoAddr argument should be prefixed with the protocol, eg. "tcp://127.0.0.1:8080" or "unix:///tmp/test.sock"
ProtocolAndAddress(listenAddr string) (string, string)
ProtocolAndAddress splits an address into the protocol and address components. For instance, "tcp://127.0.0.1:8080" will be split into "tcp" and "127.0.0.1:8080". If the address has no protocol prefix, the default is "tcp".
GetFreePort() (int, error)
GetFreePort gets a free port from the operating system.
os
TrapSignal(logger logger, cb func())
TrapSignal catches SIGTERM and SIGINT, executes the cleanup function, and exits with code 0.
Exit(s string)
Exit prints string s then os.Exit(1).
EnsureDir(dir string, mode os.FileMode) error
EnsureDir ensures the given directory exists, creating it if necessary. Errors if the path already exists as a non-directory.
FileExists(filePath string) bool
CopyFile(src, dst string) error
CopyFile copies a file. It truncates the destination file if it exists.
mac
GetMACInterface() (iface *net.Interface, err error)
GetMACInterface returns the network interface associated with the MAC address of the host machine.
GetMACStr() (string, error)
GetMACStr returns the MAC address of the host machine.
GetMACUint64() (uint64, error)
GetMACStr returns the MAC address of the host machine represented in uint64.
rand
Random number, string, bytes generation.
service
Package service/goprocesssrv is a service implementation based on goprocess that supports declaring and ensuring runtime dependencies between services.
Package service/suturesrv is a service implementation based on Suture.
sync
mutex
Use sync.Mutex and sync.RWMutex from this package instead of sync so you can build your
program with deadlock flag to detect deadlocks
using go-deadklock.
ResultNotifier
ResultNotifier can be used for a goroutine to notify others that a job is done and pass the error
occurred or nil if no error. It's based on sync.Cond.
License
Default license for the code in this library is MIT, see the source code for exceptions.