From: Nick Rosbrook <rosbro...@ainfosec.com> Define StringList as []string an implement fromC and toC functions.
Signed-off-by: Nick Rosbrook <rosbro...@ainfosec.com> Reviewed-by: George Dunlap <george.dun...@citrix.com> --- Changes in v2: - Define fromC with a pointer receiver since a newly-allocated slice is being assigned to the StringList. --- tools/golang/xenlight/xenlight.go | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/tools/golang/xenlight/xenlight.go b/tools/golang/xenlight/xenlight.go index 1c5e3c0cc7..72afc3cf14 100644 --- a/tools/golang/xenlight/xenlight.go +++ b/tools/golang/xenlight/xenlight.go @@ -212,6 +212,35 @@ type KeyValueList struct{} func (kvl KeyValueList) fromC(ckvl *C.libxl_key_value_list) error { return nil } func (kvl KeyValueList) toC() (ckvl C.libxl_key_value_list, err error) { return } +// StringList represents a libxl_string_list. +type StringList []string + +func (sl *StringList) fromC(csl *C.libxl_string_list) error { + size := int(C.libxl_string_list_length(csl)) + list := (*[1 << 30]*C.char)(unsafe.Pointer(csl))[:size:size] + + *sl = make([]string, size) + + for i, v := range list { + (*sl)[i] = C.GoString(v) + } + + return nil +} + +func (sl StringList) toC() (C.libxl_string_list, error) { + var char *C.char + size := len(sl) + csl := (C.libxl_string_list)(C.malloc(C.ulong(size) * C.ulong(unsafe.Sizeof(char)))) + clist := (*[1 << 30]*C.char)(unsafe.Pointer(csl))[:size:size] + + for i, v := range sl { + clist[i] = C.CString(v) + } + + return csl, nil +} + // Bitmap represents a libxl_bitmap. // // Implement the Go bitmap type such that the underlying data can -- 2.19.1 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel