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678e48a2e4
The scripts carry this copyright notice:
# This work is licensed under the terms of the GNU GPLv2.
# See the COPYING.LIB file in the top-level directory.
The sentences contradict each other, as COPYING.LIB contains the LGPL
2.1. Michael Roth says this was a simple pasto, and he meant to refer
COPYING. Let's fix that.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
456 lines
10 KiB
Python
456 lines
10 KiB
Python
#
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# QAPI types generator
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#
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# Copyright IBM, Corp. 2011
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#
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# Authors:
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# Anthony Liguori <aliguori@us.ibm.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2.
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# See the COPYING file in the top-level directory.
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from ordereddict import OrderedDict
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from qapi import *
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import sys
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import os
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import getopt
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import errno
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def generate_fwd_struct(name, members, builtin_type=False):
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if builtin_type:
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return mcgen('''
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typedef struct %(name)sList
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{
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union {
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%(type)s value;
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uint64_t padding;
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};
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struct %(name)sList *next;
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} %(name)sList;
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''',
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type=c_type(name),
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name=name)
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return mcgen('''
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typedef struct %(name)s %(name)s;
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typedef struct %(name)sList
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{
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union {
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%(name)s *value;
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uint64_t padding;
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};
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struct %(name)sList *next;
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} %(name)sList;
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''',
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name=name)
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def generate_fwd_enum_struct(name, members):
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return mcgen('''
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typedef struct %(name)sList
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{
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union {
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%(name)s value;
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uint64_t padding;
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};
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struct %(name)sList *next;
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} %(name)sList;
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''',
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name=name)
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def generate_struct_fields(members):
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ret = ''
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for argname, argentry, optional, structured in parse_args(members):
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if optional:
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ret += mcgen('''
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bool has_%(c_name)s;
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''',
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c_name=c_var(argname))
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if structured:
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push_indent()
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ret += generate_struct({ "field": argname, "data": argentry})
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pop_indent()
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else:
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ret += mcgen('''
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%(c_type)s %(c_name)s;
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''',
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c_type=c_type(argentry), c_name=c_var(argname))
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return ret
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def generate_struct(expr):
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structname = expr.get('type', "")
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fieldname = expr.get('field', "")
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members = expr['data']
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base = expr.get('base')
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ret = mcgen('''
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struct %(name)s
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{
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''',
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name=structname)
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if base:
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ret += generate_struct_fields({'base': base})
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ret += generate_struct_fields(members)
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if len(fieldname):
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fieldname = " " + fieldname
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ret += mcgen('''
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}%(field)s;
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''',
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field=fieldname)
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return ret
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def generate_enum_lookup(name, values):
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ret = mcgen('''
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const char *%(name)s_lookup[] = {
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''',
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name=name)
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i = 0
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for value in values:
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ret += mcgen('''
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"%(value)s",
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''',
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value=value)
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ret += mcgen('''
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NULL,
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};
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''')
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return ret
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def generate_enum_name(name):
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if name.isupper():
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return c_fun(name, False)
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new_name = ''
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for c in c_fun(name, False):
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if c.isupper():
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new_name += '_'
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new_name += c
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return new_name.lstrip('_').upper()
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def generate_enum(name, values):
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lookup_decl = mcgen('''
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extern const char *%(name)s_lookup[];
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''',
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name=name)
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enum_decl = mcgen('''
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typedef enum %(name)s
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{
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''',
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name=name)
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# append automatically generated _MAX value
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enum_values = values + [ 'MAX' ]
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i = 0
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for value in enum_values:
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enum_decl += mcgen('''
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%(abbrev)s_%(value)s = %(i)d,
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''',
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abbrev=de_camel_case(name).upper(),
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value=generate_enum_name(value),
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i=i)
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i += 1
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enum_decl += mcgen('''
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} %(name)s;
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''',
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name=name)
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return lookup_decl + enum_decl
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def generate_anon_union_qtypes(expr):
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name = expr['union']
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members = expr['data']
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ret = mcgen('''
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const int %(name)s_qtypes[QTYPE_MAX] = {
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''',
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name=name)
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for key in members:
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qapi_type = members[key]
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if builtin_type_qtypes.has_key(qapi_type):
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qtype = builtin_type_qtypes[qapi_type]
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elif find_struct(qapi_type):
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qtype = "QTYPE_QDICT"
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elif find_union(qapi_type):
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qtype = "QTYPE_QDICT"
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else:
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assert False, "Invalid anonymous union member"
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ret += mcgen('''
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[ %(qtype)s ] = %(abbrev)s_KIND_%(enum)s,
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''',
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qtype = qtype,
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abbrev = de_camel_case(name).upper(),
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enum = c_fun(de_camel_case(key),False).upper())
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ret += mcgen('''
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};
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''')
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return ret
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def generate_union(expr):
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name = expr['union']
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typeinfo = expr['data']
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base = expr.get('base')
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discriminator = expr.get('discriminator')
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ret = mcgen('''
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struct %(name)s
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{
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%(name)sKind kind;
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union {
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void *data;
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''',
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name=name)
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for key in typeinfo:
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ret += mcgen('''
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%(c_type)s %(c_name)s;
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''',
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c_type=c_type(typeinfo[key]),
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c_name=c_fun(key))
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ret += mcgen('''
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};
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''')
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if base:
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base_fields = find_struct(base)['data']
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if discriminator:
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base_fields = base_fields.copy()
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del base_fields[discriminator]
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ret += generate_struct_fields(base_fields)
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else:
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assert not discriminator
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ret += mcgen('''
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};
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''')
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if discriminator == {}:
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ret += mcgen('''
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extern const int %(name)s_qtypes[];
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''',
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name=name)
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return ret
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def generate_type_cleanup_decl(name):
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ret = mcgen('''
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void qapi_free_%(type)s(%(c_type)s obj);
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''',
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c_type=c_type(name),type=name)
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return ret
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def generate_type_cleanup(name):
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ret = mcgen('''
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void qapi_free_%(type)s(%(c_type)s obj)
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{
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QapiDeallocVisitor *md;
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Visitor *v;
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if (!obj) {
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return;
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}
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md = qapi_dealloc_visitor_new();
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v = qapi_dealloc_get_visitor(md);
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visit_type_%(type)s(v, &obj, NULL, NULL);
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qapi_dealloc_visitor_cleanup(md);
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}
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''',
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c_type=c_type(name),type=name)
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return ret
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try:
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opts, args = getopt.gnu_getopt(sys.argv[1:], "chbp:o:",
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["source", "header", "builtins",
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"prefix=", "output-dir="])
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except getopt.GetoptError, err:
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print str(err)
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sys.exit(1)
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output_dir = ""
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prefix = ""
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c_file = 'qapi-types.c'
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h_file = 'qapi-types.h'
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do_c = False
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do_h = False
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do_builtins = False
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for o, a in opts:
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if o in ("-p", "--prefix"):
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prefix = a
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elif o in ("-o", "--output-dir"):
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output_dir = a + "/"
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elif o in ("-c", "--source"):
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do_c = True
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elif o in ("-h", "--header"):
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do_h = True
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elif o in ("-b", "--builtins"):
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do_builtins = True
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if not do_c and not do_h:
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do_c = True
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do_h = True
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c_file = output_dir + prefix + c_file
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h_file = output_dir + prefix + h_file
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try:
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os.makedirs(output_dir)
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except os.error, e:
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if e.errno != errno.EEXIST:
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raise
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def maybe_open(really, name, opt):
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if really:
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return open(name, opt)
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else:
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import StringIO
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return StringIO.StringIO()
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fdef = maybe_open(do_c, c_file, 'w')
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fdecl = maybe_open(do_h, h_file, 'w')
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fdef.write(mcgen('''
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/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
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/*
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* deallocation functions for schema-defined QAPI types
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*
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* Copyright IBM, Corp. 2011
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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* Michael Roth <mdroth@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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#include "qapi/dealloc-visitor.h"
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#include "%(prefix)sqapi-types.h"
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#include "%(prefix)sqapi-visit.h"
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''', prefix=prefix))
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fdecl.write(mcgen('''
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/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
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/*
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* schema-defined QAPI types
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*
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* Copyright IBM, Corp. 2011
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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#ifndef %(guard)s
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#define %(guard)s
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#include <stdbool.h>
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#include <stdint.h>
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''',
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guard=guardname(h_file)))
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exprs = parse_schema(sys.stdin)
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exprs = filter(lambda expr: not expr.has_key('gen'), exprs)
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fdecl.write(guardstart("QAPI_TYPES_BUILTIN_STRUCT_DECL"))
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for typename in builtin_types:
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fdecl.write(generate_fwd_struct(typename, None, builtin_type=True))
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fdecl.write(guardend("QAPI_TYPES_BUILTIN_STRUCT_DECL"))
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for expr in exprs:
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ret = "\n"
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if expr.has_key('type'):
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ret += generate_fwd_struct(expr['type'], expr['data'])
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elif expr.has_key('enum'):
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ret += generate_enum(expr['enum'], expr['data']) + "\n"
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ret += generate_fwd_enum_struct(expr['enum'], expr['data'])
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fdef.write(generate_enum_lookup(expr['enum'], expr['data']))
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elif expr.has_key('union'):
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ret += generate_fwd_struct(expr['union'], expr['data']) + "\n"
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ret += generate_enum('%sKind' % expr['union'], expr['data'].keys())
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fdef.write(generate_enum_lookup('%sKind' % expr['union'], expr['data'].keys()))
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if expr.get('discriminator') == {}:
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fdef.write(generate_anon_union_qtypes(expr))
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else:
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continue
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fdecl.write(ret)
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# to avoid header dependency hell, we always generate declarations
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# for built-in types in our header files and simply guard them
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fdecl.write(guardstart("QAPI_TYPES_BUILTIN_CLEANUP_DECL"))
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for typename in builtin_types:
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fdecl.write(generate_type_cleanup_decl(typename + "List"))
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fdecl.write(guardend("QAPI_TYPES_BUILTIN_CLEANUP_DECL"))
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# ...this doesn't work for cases where we link in multiple objects that
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# have the functions defined, so we use -b option to provide control
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# over these cases
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if do_builtins:
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fdef.write(guardstart("QAPI_TYPES_BUILTIN_CLEANUP_DEF"))
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for typename in builtin_types:
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fdef.write(generate_type_cleanup(typename + "List"))
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fdef.write(guardend("QAPI_TYPES_BUILTIN_CLEANUP_DEF"))
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for expr in exprs:
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ret = "\n"
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if expr.has_key('type'):
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ret += generate_struct(expr) + "\n"
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ret += generate_type_cleanup_decl(expr['type'] + "List")
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fdef.write(generate_type_cleanup(expr['type'] + "List") + "\n")
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ret += generate_type_cleanup_decl(expr['type'])
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fdef.write(generate_type_cleanup(expr['type']) + "\n")
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elif expr.has_key('union'):
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ret += generate_union(expr)
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ret += generate_type_cleanup_decl(expr['union'] + "List")
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fdef.write(generate_type_cleanup(expr['union'] + "List") + "\n")
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ret += generate_type_cleanup_decl(expr['union'])
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fdef.write(generate_type_cleanup(expr['union']) + "\n")
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elif expr.has_key('enum'):
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ret += generate_type_cleanup_decl(expr['enum'] + "List")
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fdef.write(generate_type_cleanup(expr['enum'] + "List") + "\n")
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else:
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continue
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fdecl.write(ret)
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fdecl.write('''
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#endif
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''')
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fdecl.flush()
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fdecl.close()
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fdef.flush()
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fdef.close()
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