diff options
Diffstat (limited to 'include/qapi/clone-visitor.h')
| -rw-r--r-- | include/qapi/clone-visitor.h | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/include/qapi/clone-visitor.h b/include/qapi/clone-visitor.h index adf9a788e2..ebc182b034 100644 --- a/include/qapi/clone-visitor.h +++ b/include/qapi/clone-visitor.h @@ -11,6 +11,7 @@ #ifndef QAPI_CLONE_VISITOR_H #define QAPI_CLONE_VISITOR_H +#include "qapi/error.h" #include "qapi/visitor.h" /* @@ -20,11 +21,8 @@ */ typedef struct QapiCloneVisitor QapiCloneVisitor; -void *qapi_clone(const void *src, bool (*visit_type)(Visitor *, const char *, - void **, Error **)); -void qapi_clone_members(void *dst, const void *src, size_t sz, - bool (*visit_type_members)(Visitor *, void *, - Error **)); +Visitor *qapi_clone_visitor_new(void); +Visitor *qapi_clone_members_visitor_new(void); /* * Deep-clone QAPI object @src of the given @type, and return the result. @@ -32,10 +30,18 @@ void qapi_clone_members(void *dst, const void *src, size_t sz, * Not usable on QAPI scalars (integers, strings, enums), nor on a * QAPI object that references the 'any' type. Safe when @src is NULL. */ -#define QAPI_CLONE(type, src) \ - ((type *)qapi_clone(src, \ - (bool (*)(Visitor *, const char *, void **, \ - Error **))visit_type_ ## type)) +#define QAPI_CLONE(type, src) \ + ({ \ + Visitor *v_; \ + type *dst_ = (type *) (src); /* Cast away const */ \ + \ + if (dst_) { \ + v_ = qapi_clone_visitor_new(); \ + visit_type_ ## type(v_, NULL, &dst_, &error_abort); \ + visit_free(v_); \ + } \ + dst_; \ + }) /* * Copy deep clones of @type members from @src to @dst. @@ -43,9 +49,14 @@ void qapi_clone_members(void *dst, const void *src, size_t sz, * Not usable on QAPI scalars (integers, strings, enums), nor on a * QAPI object that references the 'any' type. */ -#define QAPI_CLONE_MEMBERS(type, dst, src) \ - qapi_clone_members(dst, src, sizeof(type), \ - (bool (*)(Visitor *, void *, \ - Error **))visit_type_ ## type ## _members) +#define QAPI_CLONE_MEMBERS(type, dst, src) \ + ({ \ + Visitor *v_; \ + \ + v_ = qapi_clone_members_visitor_new(); \ + *(type *)(dst) = *(src); \ + visit_type_ ## type ## _members(v_, (type *)(dst), &error_abort); \ + visit_free(v_); \ + }) #endif |