diff options
Diffstat (limited to 'tools/libxl/libxl_internal.h')
| -rw-r--r-- | tools/libxl/libxl_internal.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h index 691b4f6705..58004b334a 100644 --- a/tools/libxl/libxl_internal.h +++ b/tools/libxl/libxl_internal.h @@ -52,6 +52,12 @@ #include <xen/io/xenbus.h> +#ifdef LIBXL_H +# error libxl.h should be included via libxl_internal.h, not separately +#endif +#define LIBXL_EXTERNAL_CALLERS_ONLY \ + __attribute__((warning("may not be called from within libxl"))) + #include "libxl.h" #include "_paths.h" #include "_libxl_save_msgs_callout.h" @@ -1534,10 +1540,10 @@ int libxl__hotplug_settings(libxl__gc *gc, xs_transaction_t t); * * Functions using LIBXL__INIT_EGC may *not* generally be called from * within libxl, because libxl__egc_cleanup may call back into the - * application. This should be documented near the function - * prototype(s) for callers of LIBXL__INIT_EGC and EGC_INIT. You - * should in any case not find it necessary to call egc-creators from - * within libxl. + * application. This should be enforced by declaring all such + * functions in libxl.h or libxl_event.h with + * LIBXL_EXTERNAL_CALLERS_ONLY. You should in any case not find it + * necessary to call egc-creators from within libxl. * * The callbacks must all take place with the ctx unlocked because * the application is entitled to reenter libxl from them. This |