C++: Wrap resource access API

[libsigrok.git] / bindings / cxx / include / libsigrokcxx / libsigrokcxx.hpp

diff --git a/bindings/cxx/include/libsigrokcxx/libsigrokcxx.hpp b/bindings/cxx/include/libsigrokcxx/libsigrokcxx.hpp
index f96901f335ffbeef4be67262fbf428f895ab3ccb..b9e8a4f268288ff0c1b916d15e9e22b6f6eb7ece 100644 (file)
--- a/bindings/cxx/include/libsigrokcxx/libsigrokcxx.hpp
+++ b/bindings/cxx/include/libsigrokcxx/libsigrokcxx.hpp
@@ -232,6 +232,29 @@ protected:
 /** Type of log callback */
 typedef function<void(const LogLevel *, string message)> LogCallbackFunction;
 
+/** Resource reader delegate. */
+class SR_API ResourceReader
+{
+public:
+       ResourceReader() {}
+       virtual ~ResourceReader();
+private:
+       /** Resource open hook. */
+       virtual void open(struct sr_resource *res, string name) = 0;
+       /** Resource close hook. */
+       virtual void close(struct sr_resource *res) = 0;
+       /** Resource read hook. */
+       virtual size_t read(const struct sr_resource *res, void *buf, size_t count) = 0;
+
+       static SR_PRIV int open_callback(struct sr_resource *res,
+                       const char *name, void *cb_data);
+       static SR_PRIV int close_callback(struct sr_resource *res,
+                       void *cb_data);
+       static SR_PRIV ssize_t read_callback(const struct sr_resource *res,
+                       void *buf, size_t count, void *cb_data);
+       friend class Context;
+};
+
 /** The global libsigrok context */
 class SR_API Context : public UserOwned<Context, struct sr_context>
 {
@@ -258,6 +281,9 @@ public:
        void set_log_callback(LogCallbackFunction callback);
        /** Set the log callback to the default handler. */
        void set_log_callback_default();
+       /** Install a delegate for reading resource files.
+        * @param reader The resource reader delegate, or nullptr to unset. */
+       void set_resource_reader(ResourceReader *reader);
        /** Create a new session. */
        shared_ptr<Session> create_session();
        /** Create a new user device. */