diff options
Diffstat (limited to 'libusb/libusbi.h')
| -rw-r--r-- | libusb/libusbi.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/libusb/libusbi.h b/libusb/libusbi.h index 7618236..b1fc88c 100644 --- a/libusb/libusbi.h +++ b/libusb/libusbi.h @@ -436,13 +436,26 @@ struct libusb_context { }; extern struct libusb_context *usbi_default_context; +extern struct libusb_context *usbi_fallback_context; extern struct list_head active_contexts_list; extern usbi_mutex_static_t active_contexts_lock; static inline struct libusb_context *usbi_get_context(struct libusb_context *ctx) { - return ctx ? ctx : usbi_default_context; + static int warned = 0; + + if (!ctx) { + ctx = usbi_default_context; + } + if (!ctx) { + ctx = usbi_fallback_context; + if (ctx && warned == 0) { + usbi_err(ctx, "API misuse! Using non-default context as implicit default."); + warned = 1; + } + } + return ctx; } enum usbi_event_flags { |