Пример #1
0
func Gets() (s string) {
	cs := C.getstring()
	if cs == nil {
		panic("input.Gets: I/O error or out of memory")
	}

	s = C.GoString(cs)
	C.free(unsafe.Pointer(cs))
	return
}
Пример #2
0
func (p *Comment) UserComments() (UserComments []string) {
	if p.user_comments == nil {
		return nil
	}
	UserComments = make([]string, int(p.comments))
	for i := 0; i < int(p.comments); i++ {
		UserComments[i] = C.GoString(C.getstring(p.user_comments, C.int(i)))
	}
	return
}
Пример #3
0
//Get hostnames where a particular block (determined by pos & blocksize) of a file is stored.
//path: The path of the file.
//start: The start of the block.
//length: The length of the block.
//Returns a 2-D slice of blocks-hosts, or nil on error.
func (fs *Fs) GetHosts(path string, start, length int64) ([][]string, error) {
	p := C.CString(path)
	defer C.free(unsafe.Pointer(p))
	ret, err := C.hdfsGetHosts(fs.cptr, p, C.tOffset(start), C.tOffset(length))
	if ret == (***C.char)(unsafe.Pointer(uintptr(0))) {
		return nil, err
	}
	defer C.hdfsFreeHosts(ret)
	i := int(C.getlen(ret))
	j := int(C.getl(ret))
	s := make([][]string, i)
	for k, _ := range s {
		s[k] = make([]string, j)
		for p, _ := range s[k] {
			s[k][p] = C.GoString(C.getstring(ret, C.int(k), C.int(p)))
		}
	}
	return s, nil
}