[libvirt] [PATCH 5/7] remote generator: Fix XDR sign mismatch for virNodeGet(Cells)FreeMemory

[Matthias Bolte]

virNodeGetFreeMemory used unsigned long long in the public API but
signed hyper in the XDR protocol. Convert the XDR protocol to use
unsigned hyper.

As explained by Eric before, this doesn't affect the on-the-wire protocol.
---
 daemon/remote_generator.pl   |   18 ++++++------------
 src/remote/remote_protocol.x |    4 ++--
 src/remote_protocol-structs  |    4 ++--
 3 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/daemon/remote_generator.pl b/daemon/remote_generator.pl
index c405dc8..9143b3a 100755
--- a/daemon/remote_generator.pl
+++ b/daemon/remote_generator.pl
@@ -501,7 +501,7 @@ elsif ($opt_b) {
                             $single_ret_check = " < 0";
                         }
                     }
-                } elsif ($ret_member =~ m/^hyper (\S+)<(\S+)>;\s*\/\*\s*insert@(\d+)\s*\*\//) {
+                } elsif ($ret_member =~ m/^(?:unsigned )?hyper (\S+)<(\S+)>;\s*\/\*\s*insert@(\d+)\s*\*\//) {
                     push(@vars_list, "int len");
                     push(@ret_list, "ret->$1.$1_len = len;");
                     push(@free_list_on_error, "VIR_FREE(ret->$1.$1_val);");
@@ -519,7 +519,7 @@ elsif ($opt_b) {
                         $single_ret_check = " < 0";
                         splice(@args_list, int($3), 0, ("ret->$1.$1_val"));
                     }
-                } elsif ($ret_member =~ m/^hyper (\S+)<\S+>;/) {
+                } elsif ($ret_member =~ m/^(?:unsigned )?hyper (\S+)<\S+>;/) {
                     # error out on unannotated arrays
                     die "hyper array without insert@<offset> annotation: $ret_member";
                 } elsif ($ret_member =~ m/^(unsigned )?hyper (\S+);/) {
@@ -1063,20 +1063,14 @@ elsif ($opt_k) {
                         push(@ret_list, "rv = 0;");
                         $single_ret_var = "int rv = -1";
                         $single_ret_type = "int";
-                    } else {
-                        push(@ret_list, "rv = ret.$arg_name;");
-                        $single_ret_var = "unsigned long rv = 0";
-                        $single_ret_type = "unsigned long";
-                    }
-                } elsif ($ret_member =~ m/^hyper (\S+);/) {
-                    my $arg_name = $1;
-
-                    if ($call->{ProcName} eq "NodeGetFreeMemory") {
+                    } elsif ($call->{ProcName} eq "NodeGetFreeMemory") {
                         push(@ret_list, "rv = ret.$arg_name;");
                         $single_ret_var = "unsigned long long rv = 0";
                         $single_ret_type = "unsigned long long";
                     } else {
-                        die "unhandled type for return value: $ret_member";
+                        push(@ret_list, "rv = ret.$arg_name;");
+                        $single_ret_var = "unsigned long rv = 0";
+                        $single_ret_type = "unsigned long";
                     }
                 } elsif ($ret_member =~ m/^(\/)?\*/) {
                     # ignore comments
diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
index 5b9300a..f5218cd 100644
--- a/src/remote/remote_protocol.x
+++ b/src/remote/remote_protocol.x
@@ -449,11 +449,11 @@ struct remote_node_get_cells_free_memory_args {
 };
 
 struct remote_node_get_cells_free_memory_ret {
-    hyper cells<REMOTE_NODE_MAX_CELLS>; /* insert at 1 */
+    unsigned hyper cells<REMOTE_NODE_MAX_CELLS>; /* insert at 1 */
 };
 
 struct remote_node_get_free_memory_ret {
-    hyper freeMem;
+    unsigned hyper freeMem;
 };
 
 struct remote_domain_get_scheduler_type_args {
diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs
index 5491f73..fd23fa0 100644
--- a/src/remote_protocol-structs
+++ b/src/remote_protocol-structs
@@ -158,11 +158,11 @@ struct remote_node_get_cells_free_memory_args {
 struct remote_node_get_cells_free_memory_ret {
         struct {
                 u_int              cells_len;
-                int64_t *          cells_val;
+                uint64_t *         cells_val;
         } cells;
 };
 struct remote_node_get_free_memory_ret {
-        int64_t                    freeMem;
+        uint64_t                   freeMem;
 };
 struct remote_domain_get_scheduler_type_args {
         remote_nonnull_domain      dom;
-- 
1.7.0.4