dlopen

Documentation

Overview

Package dlopen provides some convenience functions to dlopen a library and get its symbols.

Index

• Variables
• type LibHandle
  • func GetHandle(libs []string) (*LibHandle, error)
  • func (l *LibHandle) Close() error
  • func (l *LibHandle) GetSymbolPointer(symbol string) (unsafe.Pointer, error)

Variables

var ErrSoNotFound = errors.New("unable to open a handle to the library")

Types

type LibHandle

type LibHandle struct {
	Handle  unsafe.Pointer
	Libname string
}

LibHandle represents an open handle to a library (.so)

func GetHandle

func GetHandle(libs []string) (*LibHandle, error)

GetHandle tries to get a handle to a library (.so), attempting to access it by the names specified in libs and returning the first that is successfully opened. Callers are responsible for closing the handler. If no library can be successfully opened, an error is returned.

func (*LibHandle) Close

func (l *LibHandle) Close() error

Close closes a LibHandle.

func (*LibHandle) GetSymbolPointer

func (l *LibHandle) GetSymbolPointer(symbol string) (unsafe.Pointer, error)

GetSymbolPointer takes a symbol name and returns a pointer to the symbol.