Define remote wire protocol & impls for virDomainQemuAttach

This tweaks the RPC generator to cope with some naming
conventions used for the QEMU specific APIs

* daemon/remote.c: Server side dispatcher
* src/remote/remote_driver.c: Client side dispatcher
* src/remote/qemu_protocol.x: Wire protocol definition
* src/rpc/gendispatch.pl: Use '$structprefix' in method
  names, fix QEMU flags and fix dispatcher method names

po/POTFILES.in

@@ -1,4 +1,5 @@
 daemon/libvirtd.c
+daemon/qemu_dispatch.h
 daemon/remote.c
 daemon/remote_dispatch.h
 daemon/stream.c

src/qemu_protocol-structs

@@ -12,3 +12,10 @@ struct qemu_monitor_command_args {
 struct qemu_monitor_command_ret {
         remote_nonnull_string      result;
 };
+struct qemu_domain_attach_args {
+        u_int                      pid;
+        u_int                      flags;
+};
+struct qemu_domain_attach_ret {
+        remote_nonnull_domain      dom;
+};

src/remote/qemu_protocol.x

@@ -37,6 +37,16 @@ struct qemu_monitor_command_ret {
     remote_nonnull_string result;
 };
 
+
+struct qemu_domain_attach_args {
+    unsigned int pid;
+    unsigned int flags;
+};
+
+struct qemu_domain_attach_ret {
+    remote_nonnull_domain dom;
+};
+
 /* Define the program number, protocol version and procedure numbers here. */
 const QEMU_PROGRAM = 0x20008087;
 const QEMU_PROTOCOL_VERSION = 1;
@@ -45,5 +55,6 @@ enum qemu_procedure {
     /* Each function must have a two-word comment.  The first word is
      * whether remote_generator.pl handles daemon, the second whether
      * it handles src/remote.  */
-    QEMU_PROC_MONITOR_COMMAND = 1 /* skipgen skipgen */
+    QEMU_PROC_MONITOR_COMMAND = 1, /* skipgen skipgen */
+    QEMU_PROC_DOMAIN_ATTACH = 2 /* autogen autogen */
 };

src/remote/remote_driver.c

@@ -4237,6 +4237,7 @@ static virDriver remote_driver = {
     .domainRevertToSnapshot = remoteDomainRevertToSnapshot, /* 0.8.0 */
     .domainSnapshotDelete = remoteDomainSnapshotDelete, /* 0.8.0 */
     .qemuDomainMonitorCommand = remoteQemuDomainMonitorCommand, /* 0.8.3 */
+    .qemuDomainAttach = qemuDomainAttach, /* 0.9.4 */
     .domainOpenConsole = remoteDomainOpenConsole, /* 0.8.6 */
     .domainInjectNMI = remoteDomainInjectNMI, /* 0.9.2 */
     .domainMigrateBegin3 = remoteDomainMigrateBegin3, /* 0.9.2 */

src/rpc/gendispatch.pl

@@ -821,6 +821,8 @@ elsif ($opt_b) {
                 $proc_name = "ConnectBaselineCPU"
             } elsif ($call->{ProcName} eq "CPUCompare") {
                 $proc_name = "ConnectCompareCPU"
+            } elsif ($structprefix eq "qemu" && $call->{ProcName} =~ /^Domain/) {
+                $proc_name =~ s/^(Domain)/${1}Qemu/;
             }
 
             if ($single_ret_as_list) {
@@ -1323,7 +1325,7 @@ elsif ($opt_k) {
         # print function
         print "\n";
         print "static $single_ret_type\n";
-        print "remote$call->{ProcName}(";
+        print "$structprefix$call->{ProcName}(";
 
         print join(", ", @args_list);
 
@@ -1417,8 +1419,13 @@ elsif ($opt_k) {
             print "    memset(&ret, 0, sizeof ret);\n";
         }
 
+        my $callflags = "0";
+        if ($structprefix eq "qemu") {
+            $callflags = "REMOTE_CALL_QEMU";
+        }
+
         print "\n";
-        print "    if (call($priv_src, priv, 0, ${procprefix}_PROC_$call->{UC_NAME},\n";
+        print "    if (call($priv_src, priv, $callflags, ${procprefix}_PROC_$call->{UC_NAME},\n";
         print "             (xdrproc_t)xdr_$argtype, (char *)$call_args,\n";
         print "             (xdrproc_t)xdr_$rettype, (char *)$call_ret) == -1) {\n";