more const fixes

tests/margo-test-client-timeout.c

@@ -195,7 +195,7 @@ static void run_my_rpc(void *_arg)
     int ret;
     hg_size_t size;
     void* buffer;
-    struct hg_info *hgi;
+    const struct hg_info *hgi;
 
     printf("ULT [%d] running.\n", arg->val);
 

tests/margo-test-client.c

@@ -196,7 +196,7 @@ static void run_my_rpc(void *_arg)
     int ret;
     hg_size_t size;
     void* buffer;
-    struct hg_info *hgi;
+    const struct hg_info *hgi;
 
     printf("ULT [%d] running.\n", arg->val);
 

tests/my-rpc.c

@@ -27,7 +27,7 @@ static void my_rpc_ult(hg_handle_t handle)
     hg_size_t size;
     void *buffer;
     hg_bulk_t bulk_handle;
-    struct hg_info *hgi;
+    const struct hg_info *hgi;
 #if 0
     int fd;
     char filename[256];
@@ -88,7 +88,7 @@ DEFINE_MARGO_RPC_HANDLER(my_rpc_ult)
 static void my_rpc_shutdown_ult(hg_handle_t handle)
 {
     hg_return_t hret;
-    struct hg_info *hgi;
+    const struct hg_info *hgi;
     margo_instance_id mid;
 
     printf("Got RPC request to shutdown\n");
@@ -121,7 +121,7 @@ static void my_rpc_hang_ult(hg_handle_t handle)
     hg_size_t size;
     void *buffer;
     hg_bulk_t bulk_handle;
-    struct hg_info *hgi;
+    const struct hg_info *hgi;
     margo_instance_id mid;
 
     ret = HG_Get_input(handle, &in);