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-rwxr-xr-xsrc/vpp-api/vapi/vapi_c_gen.py200
1 files changed, 121 insertions, 79 deletions
diff --git a/src/vpp-api/vapi/vapi_c_gen.py b/src/vpp-api/vapi/vapi_c_gen.py
index 445790d1059..204ed86bcbd 100755
--- a/src/vpp-api/vapi/vapi_c_gen.py
+++ b/src/vpp-api/vapi/vapi_c_gen.py
@@ -4,7 +4,7 @@ import argparse
import os
import sys
import logging
-from vapi_json_parser import Field, Struct, Message, JsonParser,\
+from vapi_json_parser import Field, Struct, Enum, Union, Message, JsonParser,\
SimpleType, StructType
@@ -58,18 +58,11 @@ class CField(Field):
class CStruct(Struct):
- def duplicate_barrier(func):
- def func_wrapper(self):
- name = self.get_c_name()
- return "#ifndef defined_{}\n#define defined_{}\n{}\n#endif".format(name, name, func(self))
- return func_wrapper
-
- @duplicate_barrier
def get_c_def(self):
return "\n".join([
- "typedef struct __attribute__((__packed__)) {",
- "%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()])
@@ -96,13 +89,17 @@ class CSimpleType (SimpleType):
def get_swap_to_host_func_name(self):
return self.swap_to_host_dict[self.name]
- def get_swap_to_be_code(self, struct, var):
+ def get_swap_to_be_code(self, struct, var, cast=None):
x = "%s%s" % (struct, var)
- return "%s = %s(%s);" % (x, self.get_swap_to_be_func_name(), x)
+ return "%s = %s%s(%s);" % (x,
+ "(%s)" % cast if cast else "",
+ self.get_swap_to_be_func_name(), x)
- def get_swap_to_host_code(self, struct, var):
+ def get_swap_to_host_code(self, struct, var, cast=None):
x = "%s%s" % (struct, var)
- return "%s = %s(%s);" % (x, self.get_swap_to_host_func_name(), x)
+ return "%s = %s%s(%s);" % (x,
+ "(%s)" % cast if cast else "",
+ self.get_swap_to_host_func_name(), x)
def needs_byte_swap(self):
try:
@@ -113,6 +110,41 @@ class CSimpleType (SimpleType):
return False
+class CEnum(Enum):
+ def get_c_name(self):
+ return "vapi_enum_%s" % self.name
+
+ def get_c_def(self):
+ return "typedef enum {\n%s\n} %s;" % (
+ "\n".join([" %s = %s," % (i, j) for i, j in self.value_pairs]),
+ self.get_c_name()
+ )
+
+ def needs_byte_swap(self):
+ return self.type.needs_byte_swap()
+
+ def get_swap_to_be_code(self, struct, var):
+ return self.type.get_swap_to_be_code(struct, var, self.get_c_name())
+
+ def get_swap_to_host_code(self, struct, var):
+ return self.type.get_swap_to_host_code(struct, var, self.get_c_name())
+
+
+class CUnion(Union):
+ def get_c_name(self):
+ return "vapi_union_%s" % self.name
+
+ def get_c_def(self):
+ return "typedef union {\n%s\n} %s;" % (
+ "\n".join([" %s %s;" % (i.get_c_name(), j)
+ for i, j in self.type_pairs]),
+ self.get_c_name()
+ )
+
+ def needs_byte_swap(self):
+ return False
+
+
class CStructType (StructType, CStruct):
def get_c_name(self):
return "vapi_type_%s" % self.name
@@ -161,11 +193,8 @@ class CStructType (StructType, CStruct):
class CMessage (Message):
- def __init__(self, logger, definition, typedict,
- struct_type_class, simple_type_class, field_class):
- super(CMessage, self).__init__(logger, definition, typedict,
- struct_type_class, simple_type_class,
- field_class)
+ def __init__(self, logger, definition, json_parser):
+ super(CMessage, self).__init__(logger, definition, json_parser)
self.payload_members = [
" %s" % p.get_c_def()
for p in self.fields
@@ -260,13 +289,6 @@ class CMessage (Message):
"}",
])
- def duplicate_barrier(func):
- def func_wrapper(self):
- name = self.get_payload_struct_name()
- return "#ifndef defined_{}\n#define defined_{}\n{}\n#endif".format(name, name, func(self))
- return func_wrapper
-
- @duplicate_barrier
def get_c_def(self):
if self.has_payload():
return "\n".join([
@@ -415,12 +437,12 @@ class CMessage (Message):
" %s(msg);" % self.get_swap_to_be_func_name(),
(" if (VAPI_OK == (rv = vapi_send_with_control_ping "
"(ctx, msg, req_context))) {"
- if self.is_dump() else
+ if self.reply_is_stream else
" if (VAPI_OK == (rv = vapi_send (ctx, msg))) {"
),
(" vapi_store_request(ctx, req_context, %s, "
"(vapi_cb_t)callback, callback_ctx);" %
- ("true" if self.is_dump() else "false")),
+ ("true" if self.reply_is_stream else "false")),
" if (VAPI_OK != vapi_producer_unlock (ctx)) {",
" abort (); /* this really shouldn't happen */",
" }",
@@ -441,7 +463,7 @@ class CMessage (Message):
])
def get_event_cb_func_decl(self):
- if not self.is_reply():
+ if not self.is_reply and not self.is_event:
raise Exception(
"Cannot register event callback for non-reply message")
if self.has_payload():
@@ -465,7 +487,7 @@ class CMessage (Message):
])
def get_event_cb_func_def(self):
- if not self.is_reply():
+ if not self.is_reply and not self.is_event:
raise Exception(
"Cannot register event callback for non-reply function")
return "\n".join([
@@ -531,6 +553,65 @@ vapi_send_with_control_ping (vapi_ctx_t ctx, void *msg, u32 context)
"""
+def emit_definition(parser, json_file, emitted, o, logger):
+ if o in emitted:
+ return
+ logger.debug("emit definition for %s" % o)
+ if o.name in ("msg_header1_t", "msg_header2_t"):
+ return
+ if hasattr(o, "depends"):
+ for x in o.depends:
+ emit_definition(parser, json_file, emitted, x, logger)
+ if hasattr(o, "reply"):
+ emit_definition(parser, json_file, emitted, o.reply, logger)
+ if hasattr(o, "get_c_def"):
+ 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]):
+ return
+ logger.debug("writing def")
+ guard = "defined_%s" % o.get_c_name()
+ print("#ifndef %s" % guard)
+ print("#define %s" % guard)
+ print("%s" % o.get_c_def())
+ print("")
+ function_attrs = "static inline "
+ if o.name in parser.messages_by_json[json_file]:
+ logger.debug("o is %s" % o.name)
+ if o.has_payload():
+ logger.debug("o has payload ")
+ print("%s%s" % (function_attrs,
+ o.get_swap_payload_to_be_func_def()))
+ print("")
+ print("%s%s" % (function_attrs,
+ o.get_swap_payload_to_host_func_def()))
+ print("")
+ 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("%s%s" % (function_attrs, o.get_calc_msg_size_func_def()))
+ print("")
+ if not o.is_reply and not o.is_event:
+ 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("")
+ if o.is_reply and not o.is_event:
+ print("%s%s;" % (function_attrs, o.get_event_cb_func_def()))
+ print("")
+ 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")
+ emitted.append(o)
+
+
def gen_json_unified_header(parser, logger, j, io, name):
d, f = os.path.split(j)
logger.info("Generating header `%s'" % name)
@@ -569,58 +650,17 @@ def gen_json_unified_header(parser, logger, j, io, name):
]))
print("")
print("")
+ emitted = []
+ for e in parser.enums_by_json[j]:
+ emit_definition(parser, j, emitted, e, logger)
+ for u in parser.unions_by_json[j]:
+ emit_definition(parser, j, emitted, u, logger)
for t in parser.types_by_json[j]:
- try:
- print("%s" % t.get_c_def())
- print("")
- except:
- pass
+ emit_definition(parser, j, emitted, t, logger)
for m in parser.messages_by_json[j].values():
- print("%s" % m.get_c_def())
- print("")
+ emit_definition(parser, j, emitted, m, logger)
print("")
- function_attrs = "static inline "
- for t in parser.types_by_json[j]:
- print("#ifndef defined_inline_%s" % t.get_c_name())
- print("#define defined_inline_%s" % t.get_c_name())
- print("%s%s" % (function_attrs, t.get_swap_to_be_func_def()))
- print("")
- print("%s%s" % (function_attrs, t.get_swap_to_host_func_def()))
- print("#endif")
- print("")
- for m in parser.messages_by_json[j].values():
- if m.has_payload():
- print("%s%s" % (function_attrs,
- m.get_swap_payload_to_be_func_def()))
- print("")
- print("%s%s" % (function_attrs,
- m.get_swap_payload_to_host_func_def()))
- print("")
- print("%s%s" % (function_attrs, m.get_calc_msg_size_func_def()))
- print("")
- print("%s%s" % (function_attrs, m.get_swap_to_be_func_def()))
- print("")
- print("%s%s" % (function_attrs, m.get_swap_to_host_func_def()))
- print("")
- for m in parser.messages_by_json[j].values():
- if m.is_reply():
- continue
- print("%s%s" % (function_attrs, m.get_alloc_func_def()))
- print("")
- print("%s%s" % (function_attrs, m.get_op_func_def()))
- print("")
- print("")
- for m in parser.messages_by_json[j].values():
- print("%s" % m.get_c_constructor())
- print("")
- print("")
- for m in parser.messages_by_json[j].values():
- if not m.is_reply():
- continue
- print("%s%s;" % (function_attrs, m.get_event_cb_func_def()))
- print("")
- print("")
if name == "vpe.api.vapi.h":
print("%s" % vapi_send_with_control_ping)
@@ -684,6 +724,8 @@ if __name__ == '__main__':
jsonparser = JsonParser(logger, args.files,
simple_type_class=CSimpleType,
+ enum_class=CEnum,
+ union_class=CUnion,
struct_type_class=CStructType,
field_class=CField,
message_class=CMessage)