import sys
import logging
from vapi_json_parser import Field, Struct, Enum, Union, Message, JsonParser,\
- SimpleType, StructType
+ SimpleType, StructType, Alias
class CField(Field):
+ def get_c_name(self):
+ return "vapi_type_%s" % self.name
+
def get_c_def(self):
if self.len is not None:
- return "%s %s[%d]" % (self.type.get_c_name(), self.name, self.len)
+ return "%s %s[%d];" % (self.type.get_c_name(), self.name, self.len)
else:
- return "%s %s" % (self.type.get_c_name(), self.name)
+ return "%s %s;" % (self.type.get_c_name(), self.name)
def get_swap_to_be_code(self, struct, var):
if self.len is not None:
def needs_byte_swap(self):
return self.type.needs_byte_swap()
+ def get_vla_field_length_name(self, path):
+ return "%s_%s_array_size" % ("_".join(path), self.name)
+
+ def get_alloc_vla_param_names(self, path):
+ if self.is_vla():
+ result = [self.get_vla_field_length_name(path)]
+ else:
+ result = []
+ if self.type.has_vla():
+ t = self.type.get_alloc_vla_param_names(path + [self.name])
+ result.extend(t)
+ return result
+
+ def get_vla_calc_size_code(self, prefix, path):
+ if self.is_vla():
+ result = ["sizeof(%s.%s[0]) * %s" % (
+ ".".join([prefix] + path),
+ self.name,
+ self.get_vla_field_length_name(path))]
+ else:
+ result = []
+ if self.type.has_vla():
+ t = self.type.get_vla_calc_size_code(prefix, path + [self.name])
+ result.extend(t)
+ return result
+
+ def get_vla_assign_code(self, prefix, path):
+ result = []
+ if self.is_vla():
+ result.append("%s.%s = %s" % (
+ ".".join([prefix] + path),
+ self.nelem_field.name,
+ self.get_vla_field_length_name(path)))
+ if self.type.has_vla():
+ t = self.type.get_vla_assign_code(prefix, path + [self.name])
+ result.extend(t)
+ return result
+
+
+class CAlias(CField):
+ def get_c_name(self):
+ return "vapi_type_%s" % self.name
+
+ def get_c_def(self):
+ if self.len is not None:
+ return "typedef %s vapi_type_%s[%d];" % (self.type.get_c_name(), self.name, self.len)
+ else:
+ return "typedef %s vapi_type_%s;" % (self.type.get_c_name(), self.name)
+ #return "typedef %s" % super(CAlias, self).get_c_def()
+
+ # def needs_byte_swap
+
class CStruct(Struct):
def get_c_def(self):
return "\n".join([
- "typedef struct __attribute__((__packed__)) {\n%s;" % (
- ";\n".join([" %s" % x.get_c_def()
- for x in self.fields])),
+ "typedef struct __attribute__((__packed__)) {\n%s" % (
+ "\n".join([" %s" % x.get_c_def()
+ for x in self.fields])),
"} %s;" % self.get_c_name()])
+ def get_vla_assign_code(self, prefix, path):
+ return [x for f in self.fields if f.has_vla()
+ for x in f.get_vla_assign_code(prefix, path)]
+
+ def get_alloc_vla_param_names(self, path):
+ return [x for f in self.fields
+ if f.has_vla()
+ for x in f.get_alloc_vla_param_names(path)]
+
+ def get_vla_calc_size_code(self, prefix, path):
+ return [x for f in self.fields if f.has_vla()
+ for x in f.get_vla_calc_size_code(prefix, path)]
+
class CSimpleType (SimpleType):
try:
self.get_swap_to_host_func_name()
return True
- except:
+ except KeyError:
pass
return False
def get_payload_struct_name(self):
return "vapi_payload_%s" % self.name
- def get_alloc_func_vla_field_length_name(self, field):
- return "%s_array_size" % field.name
-
def get_alloc_func_name(self):
return "vapi_alloc_%s" % self.name
def get_alloc_vla_param_names(self):
- return [self.get_alloc_func_vla_field_length_name(f)
- for f in self.fields
- if f.nelem_field is not None]
+ return [x for f in self.fields
+ if f.has_vla()
+ for x in f.get_alloc_vla_param_names([])]
def get_alloc_func_decl(self):
return "%s* %s(struct vapi_ctx_s *ctx%s)" % (
" %s *msg = NULL;" % self.get_c_name(),
" const size_t size = sizeof(%s)%s;" % (
self.get_c_name(),
- "".join([
- " + sizeof(msg->payload.%s[0]) * %s" % (
- f.name,
- self.get_alloc_func_vla_field_length_name(f))
- for f in self.fields
- if f.nelem_field is not None
- ])),
+ "".join([" + %s" % x for f in self.fields if f.has_vla()
+ for x in f.get_vla_calc_size_code("msg->payload",
+ [])])),
" /* cast here required to play nicely with C++ world ... */",
" msg = (%s*)vapi_msg_alloc(ctx, size);" % self.get_c_name(),
" if (!msg) {",
] + extra + [
" msg->header._vl_msg_id = vapi_lookup_vl_msg_id(ctx, %s);" %
self.get_msg_id_name(),
- "\n".join([" msg->payload.%s = %s;" % (
- f.nelem_field.name,
- self.get_alloc_func_vla_field_length_name(f))
- for f in self.fields
- if f.nelem_field is not None]),
+ "".join([" %s;\n" % line
+ for f in self.fields if f.has_vla()
+ for line in f.get_vla_assign_code("msg->payload", [])]),
" return msg;",
"}"])
if self.has_payload():
return "\n".join([
"typedef struct __attribute__ ((__packed__)) {",
- "%s; " %
- ";\n".join(self.payload_members),
+ "%s " %
+ "\n".join(self.payload_members),
"} %s;" % self.get_payload_struct_name(),
"",
"typedef struct __attribute__ ((__packed__)) {",
if (o not in parser.enums_by_json[json_file] and
o not in parser.types_by_json[json_file] and
o not in parser.unions_by_json[json_file] and
- o.name not in parser.messages_by_json[json_file]):
+ o.name not in parser.messages_by_json[json_file] and
+ o not in parser.aliases_by_json[json_file]):
return
guard = "defined_%s" % o.get_c_name()
print("#ifndef %s" % guard)
print("%s%s" % (function_attrs, o.get_swap_to_host_func_def()))
print("")
print("%s%s" % (function_attrs, o.get_calc_msg_size_func_def()))
- print("")
if not o.is_reply and not o.is_event:
+ print("")
print("%s%s" % (function_attrs, o.get_alloc_func_def()))
print("")
print("%s%s" % (function_attrs, o.get_op_func_def()))
- print("")
- print("%s" % o.get_c_constructor())
print("")
+ print("%s" % o.get_c_constructor())
if o.is_reply or o.is_event:
- print("%s%s;" % (function_attrs, o.get_event_cb_func_def()))
print("")
+ print("%s%s;" % (function_attrs, o.get_event_cb_func_def()))
elif hasattr(o, "get_swap_to_be_func_def"):
print("%s%s" % (function_attrs, o.get_swap_to_be_func_def()))
print("")
print("%s%s" % (function_attrs, o.get_swap_to_host_func_def()))
- print("")
print("#endif")
+ print("")
emitted.append(o)
emitted = []
for e in parser.enums_by_json[j]:
emit_definition(parser, j, emitted, e)
+ for a in parser.aliases_by_json[j]:
+ emit_definition(parser, j, emitted, a)
for u in parser.unions_by_json[j]:
emit_definition(parser, j, emitted, u)
for t in parser.types_by_json[j]:
union_class=CUnion,
struct_type_class=CStructType,
field_class=CField,
- message_class=CMessage)
+ message_class=CMessage,
+ alias_class=CAlias)
# not using the model of having separate generated header and code files
# with generated symbols present in shared library (per discussion with
Code Review / vpp.git / blobdiff