[Xen-changelog] [xen staging] golang/xenlight: define StringList builtin type

[patchbot@xxxxxxx]

commit c80a9da01a58d268fad6c32b3a4ad21fcc21d762
Author:     Nick Rosbrook <rosbrookn@xxxxxxxxxxxx>
AuthorDate: Mon Dec 16 18:08:02 2019 +0000
Commit:     George Dunlap <george.dunlap@xxxxxxxxxx>
CommitDate: Mon Dec 16 18:08:02 2019 +0000

    golang/xenlight: define StringList builtin type
    
    Define StringList as []string an implement fromC and toC functions.
    
    Signed-off-by: Nick Rosbrook <rosbrookn@xxxxxxxxxxxx>
    Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxx>
---
 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
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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