handle peer event

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/plugin/errno.rs

@@ -0,0 +1,26 @@
+pub const ERR_SUCCESS: i32 = 0;
+
+// ======================================================
+// errors that will be handled by RustDesk
+
+pub const ERR_RUSTDESK_HANDLE_BASE: i32 = 10000;
+
+// not loaded
+pub const ERR_PLUGIN_LOAD: i32 = 10001;
+// not initialized
+pub const ERR_PLUGIN_MSG_CB: i32 = 10101;
+// invalid
+pub const ERR_CALL_INVALID_METHOD: i32 = 10201;
+pub const ERR_CALL_NOT_SUPPORTED_METHOD: i32 = 10202;
+// failed on calling
+pub const ERR_CALL_INVALID_ARGS: i32 = 10301;
+pub const ERR_PEER_ID_MISMATCH: i32 = 10302;
+
+// ======================================================
+// errors that must be handled by plugin
+
+pub const ERR_PLUGIN_HANDLE_BASE: i32 = 20000;
+
+pub const EER_CALL_FAILED: i32 = 200021;
+pub const ERR_PEER_ON_FAILED: i32 = 30012;
+pub const ERR_PEER_OFF_FAILED: i32 = 30012;