debuginfod client API: add get/set user_data functions

Add a pair of functions to associate a void* parameter with a client
object.  Requested by GDB team as a way to pass file names and such
user-interface data through to a progressfn callback.

Signed-off-by: Frank Ch. Eigler <fche@redhat.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/debuginfod/debuginfod.h b/debuginfod/debuginfod.h
index b4b6a3d2..fe72f16e 100644
--- a/debuginfod/debuginfod.h
+++ b/debuginfod/debuginfod.h
@@ -1,5 +1,5 @@
 /* External declarations for the libdebuginfod client library.
-   Copyright (C) 2019 Red Hat, Inc.
+   Copyright (C) 2019-2020 Red Hat, Inc.
    This file is part of elfutils.
 
    This file is free software; you can redistribute it and/or modify
@@ -54,7 +54,7 @@ debuginfod_client *debuginfod_begin (void);
    return a posix error code.  If successful, set *path to a
    strdup'd copy of the name of the same file in the cache.
    Caller must free() it later. */
-  
+
 int debuginfod_find_debuginfo (debuginfod_client *client,
 			       const unsigned char *build_id,
                                int build_id_len,
@@ -75,6 +75,12 @@ typedef int (*debuginfod_progressfn_t)(debuginfod_client *c, long a, long b);
 void debuginfod_set_progressfn(debuginfod_client *c,
 			       debuginfod_progressfn_t fn);
 
+/* Set the user parameter.  */
+void debuginfod_set_user_data (debuginfod_client *client, void *value);
+
+/* Get the user parameter.  */
+void* debuginfod_get_user_data (debuginfod_client *client);
+
 /* Release debuginfod client connection context handle.  */
 void debuginfod_end (debuginfod_client *client);