On Tue, 07 Jun 2011 14:06:53 -0500
Anthony Liguori <anth...@codemonkey.ws> wrote:
> On 06/03/2011 05:33 PM, Michael Roth wrote:
> > This is the code generator for qapi types. It will generation the
> > following files:
> >
> > $(prefix)qapi-types.h - C types corresponding to types defined in
> > the schema you pass in
> > $(prefix)qapi-types.c - Cleanup functions for the above C types
> >
> > The $(prefix) is used to as a namespace to keep the generated code from
> > one schema/code-generation separated from others so code and be
> > generated from multiple schemas with clobbering previously created code.
> >
> > Signed-off-by: Michael Roth<mdr...@linux.vnet.ibm.com>
> > ---
> > scripts/qapi-types.py | 221
> > +++++++++++++++++++++++++++++++++++++++++++++++++
> > 1 files changed, 221 insertions(+), 0 deletions(-)
> > create mode 100644 scripts/qapi-types.py
> >
> > diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
> > new file mode 100644
> > index 0000000..15603f3
> > --- /dev/null
> > +++ b/scripts/qapi-types.py
>
> Other than copyright, I think this is ready to go.
>
> Haven't seen much comments about this series. I think we're at the
> speak now or forever hold your peace moment, so if you've got concerns
> about this approach, please speak up.
Haven't started reviewing it yet, hope to start doing it tomorrow.
>
> Regards,
>
> Anthony Liguori
>
> > @@ -0,0 +1,221 @@
> > +from ordereddict import OrderedDict
> > +from qapi import *
> > +import sys
> > +import os
> > +import getopt
> > +
> > +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_handle(name, typeinfo):
> > + return mcgen('''
> > +typedef struct %(name)s
> > +{
> > + %(c_type)s handle;
> > +} %(name)s;
> > +
> > +typedef struct %(name)sList
> > +{
> > + %(name)s *value;
> > + struct %(name)sList *next;
> > +} %(name)sList;
> > +''',
> > + name=name, c_type=c_type(typeinfo))
> > +
> > +def generate_enum(name, values):
> > + ret = mcgen('''
> > +typedef enum %(name)s
> > +{
> > +''',
> > + name=name)
> > +
> > + i = 1
> > + for value in values:
> > + ret += mcgen('''
> > + %(abbrev)s_%(value)s = %(i)d,
> > +''',
> > + abbrev=de_camel_case(name).upper(),
> > + value=c_var(value).upper(),
> > + i=i)
> > + i += 1
> > +
> > + ret += mcgen('''
> > +} %(name)s;
> > +''',
> > + name=name)
> > +
> > + return ret
> > +
> > +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)
> > +{
> > + QapiDeallocVisiter *md;
> > + Visiter *v;
> > +
> > + if (!obj) {
> > + return;
> > + }
> > +
> > + md = qapi_dealloc_visiter_new();
> > + v = qapi_dealloc_get_visiter(md);
> > + visit_type_%(type)s(v,&obj, NULL, NULL);
> > + qapi_dealloc_visiter_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
> > +
> > +if os.path.isdir(output_dir) == False:
> > + os.makedirs(output_dir)
> > +
> > +fdef = open(c_file, 'w')
> > +fdecl = open(h_file, 'w')
> > +
> > +fdef.write(mcgen('''
> > +/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
> > +
> > +#include "qapi/qapi-dealloc-visiter.h"
> > +#include "%(prefix)sqapi-types.h"
> > +#include "%(prefix)sqapi-visit.h"
> > +
> > +''', prefix=prefix))
> > +
> > +fdecl.write(mcgen('''
> > +/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
> > +#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'):
> > + add_enum(expr['enum'])
> > + ret += generate_enum(expr['enum'], expr['data'])
> > + elif expr.has_key('union'):
> > + add_enum('%sKind' % expr['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('handle'):
> > + ret += generate_handle(expr['handle'], expr['data'])
> > + elif expr.has_key('union'):
> > + ret += generate_union(expr['union'], expr['data'])
> > + else:
> > + continue
> > + fdecl.write(ret)
> > +
> > +fdecl.write('''
> > +#endif
> > +''')
> > +
> > +fdecl.flush()
> > +fdecl.close()
>
