Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2015-05-15' into staging

qapi: Fix qapi mangling of downstream names, and more

# gpg: Signature made Fri May 15 17:41:31 2015 BST using RSA key ID EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"

* remotes/armbru/tags/pull-qapi-2015-05-15: (26 commits)
  qapi: Inline gen_command_decl_prologue(), gen_command_def_prologue()
  qapi: Drop pointless flush() before close()
  qapi: Factor open_output(), close_output() out of generators
  qapi: Turn generators' mandatory option -i into an argument
  qapi: Fix generators to report command line errors decently
  qapi: Factor parse_command_line() out of the generators
  qapi: qapi-commands.py option --type is unused, drop it
  qapi: qapi-event.py option -b does nothing, drop it
  tests: Add missing dependencies on $(qapi-py)
  qapi: Support downstream events and commands
  qapi: Support downstream alternates
  qapi: Support downstream flat unions
  qapi: Support downstream simple unions
  qapi: Support downstream structs
  qapi: Support downstream enums
  qapi: Make c_type() consistently convert qapi names
  qapi: Tidy c_type() logic
  qapi: Move camel_to_upper(), c_enum_const() to closely related code
  qapi: Use c_enum_const() in generate_alternate_qtypes()
  qapi: Simplify c_enum_const()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 74 insertions, 148 deletions

diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py
index 93e43f0e48..1c1d3aa029 100644
--- a/scripts/qapi-commands.py
+++ b/scripts/qapi-commands.py
@@ -15,28 +15,19 @@
 from ordereddict import OrderedDict
 from qapi import *
 import re
-import sys
-import os
-import getopt
-import errno
-
-def type_visitor(name):
-    if type(name) == list:
-        return 'visit_type_%sList' % name[0]
-    else:
-        return 'visit_type_%s' % name
 
 def generate_command_decl(name, args, ret_type):
     arglist=""
     for argname, argtype, optional in parse_args(args):
         argtype = c_type(argtype, is_param=True)
         if optional:
-            arglist += "bool has_%s, " % c_var(argname)
-        arglist += "%s %s, " % (argtype, c_var(argname))
+            arglist += "bool has_%s, " % c_name(argname)
+        arglist += "%s %s, " % (argtype, c_name(argname))
     return mcgen('''
 %(ret_type)s qmp_%(name)s(%(args)sError **errp);
 ''',
-                 ret_type=c_type(ret_type), name=c_fun(name), args=arglist).strip()
+                 ret_type=c_type(ret_type), name=c_name(name),
+                 args=arglist).strip()
 
 def gen_err_check(errvar):
     if errvar:
@@ -55,14 +46,14 @@ def gen_sync_call(name, args, ret_type, indent=0):
         retval = "retval = "
     for argname, argtype, optional in parse_args(args):
         if optional:
-            arglist += "has_%s, " % c_var(argname)
-        arglist += "%s, " % (c_var(argname))
+            arglist += "has_%s, " % c_name(argname)
+        arglist += "%s, " % (c_name(argname))
     push_indent(indent)
     ret = mcgen('''
 %(retval)sqmp_%(name)s(%(args)s&local_err);
 
 ''',
-                name=c_fun(name), args=arglist, retval=retval).rstrip()
+                name=c_name(name), args=arglist, retval=retval).rstrip()
     if ret_type:
         ret += "\n" + gen_err_check('local_err')
         ret += "\n" + mcgen(''''
@@ -76,7 +67,7 @@ def gen_sync_call(name, args, ret_type, indent=0):
 def gen_marshal_output_call(name, ret_type):
     if not ret_type:
         return ""
-    return "qmp_marshal_output_%s(retval, ret, &local_err);" % c_fun(name)
+    return "qmp_marshal_output_%s(retval, ret, &local_err);" % c_name(name)
 
 def gen_visitor_input_containers_decl(args, obj):
     ret = ""
@@ -101,17 +92,17 @@ def gen_visitor_input_vars_decl(args):
             ret += mcgen('''
 bool has_%(argname)s = false;
 ''',
-                         argname=c_var(argname))
+                         argname=c_name(argname))
         if is_c_ptr(argtype):
             ret += mcgen('''
 %(argtype)s %(argname)s = NULL;
 ''',
-                         argname=c_var(argname), argtype=c_type(argtype))
+                         argname=c_name(argname), argtype=c_type(argtype))
         else:
             ret += mcgen('''
 %(argtype)s %(argname)s = {0};
 ''',
-                         argname=c_var(argname), argtype=c_type(argtype))
+                         argname=c_name(argname), argtype=c_type(argtype))
 
     pop_indent()
     return ret.rstrip()
@@ -144,18 +135,18 @@ v = qmp_input_get_visitor(mi);
             ret += mcgen('''
 visit_optional(v, &has_%(c_name)s, "%(name)s", %(errp)s);
 ''',
-                         c_name=c_var(argname), name=argname, errp=errparg)
+                         c_name=c_name(argname), name=argname, errp=errparg)
             ret += gen_err_check(errarg)
             ret += mcgen('''
 if (has_%(c_name)s) {
 ''',
-                         c_name=c_var(argname))
+                         c_name=c_name(argname))
             push_indent()
         ret += mcgen('''
-%(visitor)s(v, &%(c_name)s, "%(name)s", %(errp)s);
+visit_type_%(visitor)s(v, &%(c_name)s, "%(name)s", %(errp)s);
 ''',
-                     c_name=c_var(argname), name=argname, argtype=argtype,
-                     visitor=type_visitor(argtype), errp=errparg)
+                     c_name=c_name(argname), name=argname, argtype=argtype,
+                     visitor=type_name(argtype), errp=errparg)
         ret += gen_err_check(errarg)
         if optional:
             pop_indent()
@@ -183,7 +174,7 @@ static void qmp_marshal_output_%(c_name)s(%(c_ret_type)s ret_in, QObject **ret_o
     Visitor *v;
 
     v = qmp_output_get_visitor(mo);
-    %(visitor)s(v, &ret_in, "unused", &local_err);
+    visit_type_%(visitor)s(v, &ret_in, "unused", &local_err);
     if (local_err) {
         goto out;
     }
@@ -194,20 +185,20 @@ out:
     qmp_output_visitor_cleanup(mo);
     md = qapi_dealloc_visitor_new();
     v = qapi_dealloc_get_visitor(md);
-    %(visitor)s(v, &ret_in, "unused", NULL);
+    visit_type_%(visitor)s(v, &ret_in, "unused", NULL);
     qapi_dealloc_visitor_cleanup(md);
 }
 ''',
-                c_ret_type=c_type(ret_type), c_name=c_fun(name),
-                visitor=type_visitor(ret_type))
+                c_ret_type=c_type(ret_type), c_name=c_name(name),
+                visitor=type_name(ret_type))
 
     return ret
 
 def gen_marshal_input_decl(name, args, ret_type, middle_mode):
     if middle_mode:
-        return 'int qmp_marshal_input_%s(Monitor *mon, const QDict *qdict, QObject **ret)' % c_fun(name)
+        return 'int qmp_marshal_input_%s(Monitor *mon, const QDict *qdict, QObject **ret)' % c_name(name)
     else:
-        return 'static void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_fun(name)
+        return 'static void qmp_marshal_input_%s(QDict *args, QObject **ret, Error **errp)' % c_name(name)
 
 
 
@@ -304,7 +295,7 @@ def gen_registry(commands):
         registry += mcgen('''
 qmp_register_command("%(name)s", qmp_marshal_input_%(c_name)s, %(opts)s);
 ''',
-                     name=cmd['command'], c_name=c_fun(cmd['command']),
+                     name=cmd['command'], c_name=c_name(cmd['command']),
                      opts=options)
     pop_indent()
     ret = mcgen('''
@@ -318,12 +309,22 @@ qapi_init(qmp_init_marshal);
                 registry=registry.rstrip())
     return ret
 
-def gen_command_decl_prologue(header, guard, prefix=""):
-    ret = mcgen('''
-/* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */
+middle_mode = False
+
+(input_file, output_dir, do_c, do_h, prefix, opts) = \
+    parse_command_line("m", ["middle"])
+
+for o, a in opts:
+    if o in ("-m", "--middle"):
+        middle_mode = True
 
+exprs = parse_schema(input_file)
+commands = filter(lambda expr: expr.has_key('command'), exprs)
+commands = filter(lambda expr: not expr.has_key('gen'), commands)
+
+c_comment = '''
 /*
- * schema-defined QAPI function prototypes
+ * schema-defined QMP->QAPI command dispatch
  *
  * Copyright IBM, Corp. 2011
  *
@@ -334,24 +335,10 @@ def gen_command_decl_prologue(header, guard, prefix=""):
  * See the COPYING.LIB file in the top-level directory.
  *
  */
-
-#ifndef %(guard)s
-#define %(guard)s
-
-#include "%(prefix)sqapi-types.h"
-#include "qapi/qmp/qdict.h"
-#include "qapi/error.h"
-
-''',
-                 header=basename(header), guard=guardname(header), prefix=prefix)
-    return ret
-
-def gen_command_def_prologue(prefix="", proxy=False):
-    ret = mcgen('''
-/* THIS FILE IS AUTOMATICALLY GENERATED, DO NOT MODIFY */
-
+'''
+h_comment = '''
 /*
- * schema-defined QMP->QAPI command dispatch
+ * schema-defined QAPI function prototypes
  *
  * Copyright IBM, Corp. 2011
  *
@@ -362,7 +349,13 @@ def gen_command_def_prologue(prefix="", proxy=False):
  * See the COPYING.LIB file in the top-level directory.
  *
  */
+'''
+
+(fdef, fdecl) = open_output(output_dir, do_c, do_h, prefix,
+                            'qmp-marshal.c', 'qmp-commands.h',
+                            c_comment, h_comment)
 
+fdef.write(mcgen('''
 #include "qemu-common.h"
 #include "qemu/module.h"
 #include "qapi/qmp/qerror.h"
@@ -374,107 +367,40 @@ def gen_command_def_prologue(prefix="", proxy=False):
 #include "qapi/dealloc-visitor.h"
 #include "%(prefix)sqapi-types.h"
 #include "%(prefix)sqapi-visit.h"
+#include "%(prefix)sqmp-commands.h"
 
 ''',
-                prefix=prefix)
-    if not proxy:
-        ret += '#include "%sqmp-commands.h"' % prefix
-    return ret + "\n\n"
-
-
-try:
-    opts, args = getopt.gnu_getopt(sys.argv[1:], "chp:i:o:m",
-                                   ["source", "header", "prefix=",
-                                    "input-file=", "output-dir=",
-                                    "type=", "middle"])
-except getopt.GetoptError, err:
-    print str(err)
-    sys.exit(1)
-
-output_dir = ""
-prefix = ""
-dispatch_type = "sync"
-c_file = 'qmp-marshal.c'
-h_file = 'qmp-commands.h'
-middle_mode = False
-
-do_c = False
-do_h = False
-
-for o, a in opts:
-    if o in ("-p", "--prefix"):
-        prefix = a
-    elif o in ("-i", "--input-file"):
-        input_file = a
-    elif o in ("-o", "--output-dir"):
-        output_dir = a + "/"
-    elif o in ("-t", "--type"):
-        dispatch_type = a
-    elif o in ("-m", "--middle"):
-        middle_mode = True
-    elif o in ("-c", "--source"):
-        do_c = True
-    elif o in ("-h", "--header"):
-        do_h = True
-
-if not do_c and not do_h:
-    do_c = True
-    do_h = True
-
-c_file = output_dir + prefix + c_file
-h_file = output_dir + prefix + h_file
+                prefix=prefix))
 
-def maybe_open(really, name, opt):
-    if really:
-        return open(name, opt)
-    else:
-        import StringIO
-        return StringIO.StringIO()
-
-try:
-    os.makedirs(output_dir)
-except os.error, e:
-    if e.errno != errno.EEXIST:
-        raise
-
-exprs = parse_schema(input_file)
-commands = filter(lambda expr: expr.has_key('command'), exprs)
-commands = filter(lambda expr: not expr.has_key('gen'), commands)
+fdecl.write(mcgen('''
+#include "%(prefix)sqapi-types.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/error.h"
 
-if dispatch_type == "sync":
-    fdecl = maybe_open(do_h, h_file, 'w')
-    fdef = maybe_open(do_c, c_file, 'w')
-    ret = gen_command_decl_prologue(header=basename(h_file), guard=guardname(h_file), prefix=prefix)
+''',
+                 prefix=prefix))
+
+for cmd in commands:
+    arglist = []
+    ret_type = None
+    if cmd.has_key('data'):
+        arglist = cmd['data']
+    if cmd.has_key('returns'):
+        ret_type = cmd['returns']
+    ret = generate_command_decl(cmd['command'], arglist, ret_type) + "\n"
     fdecl.write(ret)
-    ret = gen_command_def_prologue(prefix=prefix)
-    fdef.write(ret)
-
-    for cmd in commands:
-        arglist = []
-        ret_type = None
-        if cmd.has_key('data'):
-            arglist = cmd['data']
-        if cmd.has_key('returns'):
-            ret_type = cmd['returns']
-        ret = generate_command_decl(cmd['command'], arglist, ret_type) + "\n"
-        fdecl.write(ret)
-        if ret_type:
-            ret = gen_marshal_output(cmd['command'], arglist, ret_type, middle_mode) + "\n"
-            fdef.write(ret)
-
-        if middle_mode:
-            fdecl.write('%s;\n' % gen_marshal_input_decl(cmd['command'], arglist, ret_type, middle_mode))
-
-        ret = gen_marshal_input(cmd['command'], arglist, ret_type, middle_mode) + "\n"
+    if ret_type:
+        ret = gen_marshal_output(cmd['command'], arglist, ret_type, middle_mode) + "\n"
         fdef.write(ret)
 
-    fdecl.write("\n#endif\n");
+    if middle_mode:
+        fdecl.write('%s;\n' % gen_marshal_input_decl(cmd['command'], arglist, ret_type, middle_mode))
 
-    if not middle_mode:
-        ret = gen_registry(commands)
-        fdef.write(ret)
+    ret = gen_marshal_input(cmd['command'], arglist, ret_type, middle_mode) + "\n"
+    fdef.write(ret)
+
+if not middle_mode:
+    ret = gen_registry(commands)
+    fdef.write(ret)
 
-    fdef.flush()
-    fdef.close()
-    fdecl.flush()
-    fdecl.close()
+close_output(fdef, fdecl)