diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/qapi-types.py | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py new file mode 100644 index 0000000..cece325 --- /dev/null +++ b/scripts/qapi-types.py @@ -0,0 +1,270 @@ +# +# QAPI types generator +# +# Copyright IBM, Corp. 2011 +# +# Authors: +# Anthony Liguori <aliguori@us.ibm.com> +# +# This work is licensed under the terms of the GNU GPLv2. +# See the COPYING.LIB file in the top-level directory. + +from ordereddict import OrderedDict +from qapi import * +import sys +import os +import getopt +import errno + +def generate_fwd_struct(name, members): + return mcgen(''' +typedef struct %(name)s %(name)s; + +typedef struct %(name)sList +{ + %(name)s *value; + struct %(name)sList *next; +} %(name)sList; +''', + name=name) + +def generate_struct(structname, fieldname, members): + ret = mcgen(''' +struct %(name)s +{ +''', + name=structname) + + for argname, argentry, optional, structured in parse_args(members): + if optional: + ret += mcgen(''' + bool has_%(c_name)s; +''', + c_name=c_var(argname)) + if structured: + push_indent() + ret += generate_struct("", argname, argentry) + pop_indent() + else: + ret += mcgen(''' + %(c_type)s %(c_name)s; +''', + c_type=c_type(argentry), c_name=c_var(argname)) + + if len(fieldname): + fieldname = " " + fieldname + ret += mcgen(''' +}%(field)s; +''', + field=fieldname) + + return ret + +def generate_enum_lookup(name, values): + ret = mcgen(''' +const char *%(name)s_lookup[] = { +''', + name=name) + i = 0 + for value in values: + ret += mcgen(''' + "%(value)s", +''', + value=c_var(value).lower()) + + ret += mcgen(''' + NULL, +}; + +''') + return ret + +def generate_enum(name, values): + lookup_decl = mcgen(''' +extern const char *%(name)s_lookup[]; +''', + name=name) + + enum_decl = mcgen(''' +typedef enum %(name)s +{ +''', + name=name) + + i = 0 + for value in values: + enum_decl += mcgen(''' + %(abbrev)s_%(value)s = %(i)d, +''', + abbrev=de_camel_case(name).upper(), + value=c_var(value).upper(), + i=i) + i += 1 + + enum_decl += mcgen(''' +} %(name)s; +''', + name=name) + + return lookup_decl + enum_decl + +def generate_union(name, typeinfo): + ret = mcgen(''' +struct %(name)s +{ + %(name)sKind kind; + union { +''', + name=name) + + for key in typeinfo: + ret += mcgen(''' + %(c_type)s %(c_name)s; +''', + c_type=c_type(typeinfo[key]), + c_name=c_var(key)) + + ret += mcgen(''' + }; +}; +''') + + return ret + +def generate_type_cleanup_decl(name): + ret = mcgen(''' +void qapi_free_%(type)s(%(c_type)s obj); +''', + c_type=c_type(name),type=name) + return ret + +def generate_type_cleanup(name): + ret = mcgen(''' +void qapi_free_%(type)s(%(c_type)s obj) +{ + QapiDeallocVisitor *md; + Visitor *v; + + if (!obj) { + return; + } + + md = qapi_dealloc_visitor_new(); + v = qapi_dealloc_get_visitor(md); + visit_type_%(type)s(v, &obj, NULL, NULL); + qapi_dealloc_visitor_cleanup(md); +} +''', + c_type=c_type(name),type=name) + return ret + + +try: + opts, args = getopt.gnu_getopt(sys.argv[1:], "p:o:", ["prefix=", "output-dir="]) +except getopt.GetoptError, err: + print str(err) + sys.exit(1) + +output_dir = "" +prefix = "" +c_file = 'qapi-types.c' +h_file = 'qapi-types.h' + +for o, a in opts: + if o in ("-p", "--prefix"): + prefix = a + elif o in ("-o", "--output-dir"): + output_dir = a + "/" + +c_file = output_dir + prefix + c_file +h_file = output_dir + prefix + h_file + +try: + os.makedirs(output_dir) +except os.error, e: + if e.errno != errno.EEXIST: + raise + +fdef = open(c_file, 'w') +fdecl = open(h_file, 'w') + +fdef.write(mcgen(''' +/* AUTOMATICALLY GENERATED, DO NOT MODIFY */ + +/* + * deallocation functions for schema-defined QAPI types + * + * Copyright IBM, Corp. 2011 + * + * Authors: + * Anthony Liguori <aliguori@us.ibm.com> + * Michael Roth <mdroth@linux.vnet.ibm.com> + * + * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. + * See the COPYING.LIB file in the top-level directory. + * + */ + +#include "qapi/qapi-dealloc-visitor.h" +#include "%(prefix)sqapi-types.h" +#include "%(prefix)sqapi-visit.h" + +''', prefix=prefix)) + +fdecl.write(mcgen(''' +/* AUTOMATICALLY GENERATED, DO NOT MODIFY */ + +/* + * schema-defined QAPI types + * + * Copyright IBM, Corp. 2011 + * + * Authors: + * Anthony Liguori <aliguori@us.ibm.com> + * + * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. + * See the COPYING.LIB file in the top-level directory. + * + */ + +#ifndef %(guard)s +#define %(guard)s + +#include "qapi/qapi-types-core.h" +''', + guard=guardname(h_file))) + +exprs = parse_schema(sys.stdin) + +for expr in exprs: + ret = "\n" + if expr.has_key('type'): + ret += generate_fwd_struct(expr['type'], expr['data']) + elif expr.has_key('enum'): + ret += generate_enum(expr['enum'], expr['data']) + fdef.write(generate_enum_lookup(expr['enum'], expr['data'])) + elif expr.has_key('union'): + ret += generate_fwd_struct(expr['union'], expr['data']) + "\n" + ret += generate_enum('%sKind' % expr['union'], expr['data'].keys()) + else: + continue + fdecl.write(ret) + +for expr in exprs: + ret = "\n" + if expr.has_key('type'): + ret += generate_struct(expr['type'], "", expr['data']) + "\n" + ret += generate_type_cleanup_decl(expr['type']) + fdef.write(generate_type_cleanup(expr['type']) + "\n") + elif expr.has_key('union'): + ret += generate_union(expr['union'], expr['data']) + else: + continue + fdecl.write(ret) + +fdecl.write(''' +#endif +''') + +fdecl.flush() +fdecl.close() |