| #!/usr/bin/env python2 |
| |
| import argparse |
| import os |
| import sys |
| import logging |
| from vapi_json_parser import Field, Struct, Enum, Union, Message, JsonParser,\ |
| SimpleType, StructType |
| |
| |
| class CField(Field): |
| def get_c_def(self): |
| if self.len is not None: |
| return "%s %s[%d]" % (self.type.get_c_name(), self.name, self.len) |
| else: |
| 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: |
| if self.len > 0: |
| return "do { unsigned i; for (i = 0; i < %d; ++i) { %s } }"\ |
| " while(0);" % ( |
| self.len, |
| self.type.get_swap_to_be_code(struct, "%s[i]" % var)) |
| else: |
| if self.nelem_field.needs_byte_swap(): |
| nelem_field = "%s(%s%s)" % ( |
| self.nelem_field.type.get_swap_to_host_func_name(), |
| struct, self.nelem_field.name) |
| else: |
| nelem_field = "%s%s" % (struct, self.nelem_field.name) |
| return ( |
| "do { unsigned i; for (i = 0; i < %s; ++i) { %s } }" |
| " while(0);" % |
| (nelem_field, self.type.get_swap_to_be_code( |
| struct, "%s[i]" % var))) |
| return self.type.get_swap_to_be_code(struct, "%s" % var) |
| |
| def get_swap_to_host_code(self, struct, var): |
| if self.len is not None: |
| if self.len > 0: |
| return "do { unsigned i; for (i = 0; i < %d; ++i) { %s } }"\ |
| " while(0);" % ( |
| self.len, |
| self.type.get_swap_to_host_code(struct, "%s[i]" % var)) |
| else: |
| # nelem_field already swapped to host here... |
| return ( |
| "do { unsigned i; for (i = 0; i < %s%s; ++i) { %s } }" |
| " while(0);" % |
| (struct, self.nelem_field.name, |
| self.type.get_swap_to_host_code( |
| struct, "%s[i]" % var))) |
| return self.type.get_swap_to_host_code(struct, "%s" % var) |
| |
| 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 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])), |
| "} %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): |
| |
| swap_to_be_dict = { |
| 'i16': 'htobe16', 'u16': 'htobe16', |
| 'i32': 'htobe32', 'u32': 'htobe32', |
| 'i64': 'htobe64', 'u64': 'htobe64', |
| } |
| |
| swap_to_host_dict = { |
| 'i16': 'be16toh', 'u16': 'be16toh', |
| 'i32': 'be32toh', 'u32': 'be32toh', |
| 'i64': 'be64toh', 'u64': 'be64toh', |
| } |
| |
| def get_c_name(self): |
| return self.name |
| |
| def get_swap_to_be_func_name(self): |
| return self.swap_to_be_dict[self.name] |
| |
| 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, cast=None): |
| x = "%s%s" % (struct, var) |
| 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, cast=None): |
| x = "%s%s" % (struct, var) |
| 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: |
| self.get_swap_to_host_func_name() |
| return True |
| except: |
| pass |
| 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 |
| |
| def get_swap_to_be_func_name(self): |
| return "%s_hton" % self.get_c_name() |
| |
| def get_swap_to_host_func_name(self): |
| return "%s_ntoh" % self.get_c_name() |
| |
| def get_swap_to_be_func_decl(self): |
| return "void %s(%s *msg)" % ( |
| self.get_swap_to_be_func_name(), self.get_c_name()) |
| |
| def get_swap_to_be_func_def(self): |
| return "%s\n{\n%s\n}" % ( |
| self.get_swap_to_be_func_decl(), |
| "\n".join([ |
| " %s" % p.get_swap_to_be_code("msg->", "%s" % p.name) |
| for p in self.fields if p.needs_byte_swap()]), |
| ) |
| |
| def get_swap_to_host_func_decl(self): |
| return "void %s(%s *msg)" % ( |
| self.get_swap_to_host_func_name(), self.get_c_name()) |
| |
| def get_swap_to_host_func_def(self): |
| return "%s\n{\n%s\n}" % ( |
| self.get_swap_to_host_func_decl(), |
| "\n".join([ |
| " %s" % p.get_swap_to_host_code("msg->", "%s" % p.name) |
| for p in self.fields if p.needs_byte_swap()]), |
| ) |
| |
| def get_swap_to_be_code(self, struct, var): |
| return "%s(&%s%s);" % (self.get_swap_to_be_func_name(), struct, var) |
| |
| def get_swap_to_host_code(self, struct, var): |
| return "%s(&%s%s);" % (self.get_swap_to_host_func_name(), struct, var) |
| |
| def needs_byte_swap(self): |
| for f in self.fields: |
| if f.needs_byte_swap(): |
| return True |
| return False |
| |
| |
| class CMessage (Message): |
| 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 |
| if p.type != self.header |
| ] |
| |
| def has_payload(self): |
| return len(self.payload_members) > 0 |
| |
| def get_msg_id_name(self): |
| return "vapi_msg_id_%s" % self.name |
| |
| def get_c_name(self): |
| return "vapi_msg_%s" % self.name |
| |
| def get_payload_struct_name(self): |
| return "vapi_payload_%s" % self.name |
| |
| def get_alloc_func_name(self): |
| return "vapi_alloc_%s" % self.name |
| |
| def get_alloc_vla_param_names(self): |
| 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)" % ( |
| self.get_c_name(), |
| self.get_alloc_func_name(), |
| "".join([", size_t %s" % n for n in |
| self.get_alloc_vla_param_names()])) |
| |
| def get_alloc_func_def(self): |
| extra = [] |
| if self.header.has_field('client_index'): |
| extra.append( |
| " msg->header.client_index = vapi_get_client_index(ctx);") |
| if self.header.has_field('context'): |
| extra.append(" msg->header.context = 0;") |
| return "\n".join([ |
| "%s" % self.get_alloc_func_decl(), |
| "{", |
| " %s *msg = NULL;" % self.get_c_name(), |
| " const size_t size = sizeof(%s)%s;" % ( |
| self.get_c_name(), |
| "".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) {", |
| " return NULL;", |
| " }", |
| ] + extra + [ |
| " msg->header._vl_msg_id = vapi_lookup_vl_msg_id(ctx, %s);" % |
| self.get_msg_id_name(), |
| "".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;", |
| "}"]) |
| |
| def get_calc_msg_size_func_name(self): |
| return "vapi_calc_%s_msg_size" % self.name |
| |
| def get_calc_msg_size_func_decl(self): |
| return "uword %s(%s *msg)" % ( |
| self.get_calc_msg_size_func_name(), |
| self.get_c_name()) |
| |
| def get_calc_msg_size_func_def(self): |
| return "\n".join([ |
| "%s" % self.get_calc_msg_size_func_decl(), |
| "{", |
| " return sizeof(*msg)%s;" % |
| "".join(["+ msg->payload.%s * sizeof(msg->payload.%s[0])" % ( |
| f.nelem_field.name, |
| f.name) |
| for f in self.fields |
| if f.nelem_field is not None |
| ]), |
| "}", |
| ]) |
| |
| def get_c_def(self): |
| if self.has_payload(): |
| return "\n".join([ |
| "typedef struct __attribute__ ((__packed__)) {", |
| "%s; " % |
| ";\n".join(self.payload_members), |
| "} %s;" % self.get_payload_struct_name(), |
| "", |
| "typedef struct __attribute__ ((__packed__)) {", |
| (" %s %s;" % (self.header.get_c_name(), |
| self.fields[0].name) |
| if self.header is not None else ""), |
| " %s payload;" % self.get_payload_struct_name(), |
| "} %s;" % self.get_c_name(), ]) |
| else: |
| return "\n".join([ |
| "typedef struct __attribute__ ((__packed__)) {", |
| (" %s %s;" % (self.header.get_c_name(), |
| self.fields[0].name) |
| if self.header is not None else ""), |
| "} %s;" % self.get_c_name(), ]) |
| |
| def get_swap_payload_to_host_func_name(self): |
| return "%s_payload_ntoh" % self.get_c_name() |
| |
| def get_swap_payload_to_be_func_name(self): |
| return "%s_payload_hton" % self.get_c_name() |
| |
| def get_swap_payload_to_host_func_decl(self): |
| return "void %s(%s *payload)" % ( |
| self.get_swap_payload_to_host_func_name(), |
| self.get_payload_struct_name()) |
| |
| def get_swap_payload_to_be_func_decl(self): |
| return "void %s(%s *payload)" % ( |
| self.get_swap_payload_to_be_func_name(), |
| self.get_payload_struct_name()) |
| |
| def get_swap_payload_to_be_func_def(self): |
| return "%s\n{\n%s\n}" % ( |
| self.get_swap_payload_to_be_func_decl(), |
| "\n".join([ |
| " %s" % p.get_swap_to_be_code("payload->", "%s" % p.name) |
| for p in self.fields |
| if p.needs_byte_swap() and p.type != self.header]), |
| ) |
| |
| def get_swap_payload_to_host_func_def(self): |
| return "%s\n{\n%s\n}" % ( |
| self.get_swap_payload_to_host_func_decl(), |
| "\n".join([ |
| " %s" % p.get_swap_to_host_code("payload->", "%s" % p.name) |
| for p in self.fields |
| if p.needs_byte_swap() and p.type != self.header]), |
| ) |
| |
| def get_swap_to_host_func_name(self): |
| return "%s_ntoh" % self.get_c_name() |
| |
| def get_swap_to_be_func_name(self): |
| return "%s_hton" % self.get_c_name() |
| |
| def get_swap_to_host_func_decl(self): |
| return "void %s(%s *msg)" % ( |
| self.get_swap_to_host_func_name(), self.get_c_name()) |
| |
| def get_swap_to_be_func_decl(self): |
| return "void %s(%s *msg)" % ( |
| self.get_swap_to_be_func_name(), self.get_c_name()) |
| |
| def get_swap_to_be_func_def(self): |
| return "\n".join([ |
| "%s" % self.get_swap_to_be_func_decl(), |
| "{", |
| (" VAPI_DBG(\"Swapping `%s'@%%p to big endian\", msg);" % |
| self.get_c_name()), |
| " %s(&msg->header);" % self.header.get_swap_to_be_func_name() |
| if self.header is not None else "", |
| " %s(&msg->payload);" % self.get_swap_payload_to_be_func_name() |
| if self.has_payload() else "", |
| "}", |
| ]) |
| |
| def get_swap_to_host_func_def(self): |
| return "\n".join([ |
| "%s" % self.get_swap_to_host_func_decl(), |
| "{", |
| (" VAPI_DBG(\"Swapping `%s'@%%p to host byte order\", msg);" % |
| self.get_c_name()), |
| " %s(&msg->header);" % self.header.get_swap_to_host_func_name() |
| if self.header is not None else "", |
| " %s(&msg->payload);" % self.get_swap_payload_to_host_func_name() |
| if self.has_payload() else "", |
| "}", |
| ]) |
| |
| def get_op_func_name(self): |
| return "vapi_%s" % self.name |
| |
| def get_op_func_decl(self): |
| if self.reply.has_payload(): |
| return "vapi_error_e %s(%s)" % ( |
| self.get_op_func_name(), |
| ",\n ".join([ |
| 'struct vapi_ctx_s *ctx', |
| '%s *msg' % self.get_c_name(), |
| 'vapi_error_e (*callback)(struct vapi_ctx_s *ctx', |
| ' void *callback_ctx', |
| ' vapi_error_e rv', |
| ' bool is_last', |
| ' %s *reply)' % |
| self.reply.get_payload_struct_name(), |
| 'void *callback_ctx', |
| ]) |
| ) |
| else: |
| return "vapi_error_e %s(%s)" % ( |
| self.get_op_func_name(), |
| ",\n ".join([ |
| 'struct vapi_ctx_s *ctx', |
| '%s *msg' % self.get_c_name(), |
| 'vapi_error_e (*callback)(struct vapi_ctx_s *ctx', |
| ' void *callback_ctx', |
| ' vapi_error_e rv', |
| ' bool is_last)', |
| 'void *callback_ctx', |
| ]) |
| ) |
| |
| def get_op_func_def(self): |
| return "\n".join([ |
| "%s" % self.get_op_func_decl(), |
| "{", |
| " if (!msg || !callback) {", |
| " return VAPI_EINVAL;", |
| " }", |
| " if (vapi_is_nonblocking(ctx) && vapi_requests_full(ctx)) {", |
| " return VAPI_EAGAIN;", |
| " }", |
| " vapi_error_e rv;", |
| " if (VAPI_OK != (rv = vapi_producer_lock (ctx))) {", |
| " return rv;", |
| " }", |
| " u32 req_context = vapi_gen_req_context(ctx);", |
| " msg->header.context = req_context;", |
| " %s(msg);" % self.get_swap_to_be_func_name(), |
| (" if (VAPI_OK == (rv = vapi_send_with_control_ping " |
| "(ctx, msg, req_context))) {" |
| 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.reply_is_stream else "false")), |
| " if (VAPI_OK != vapi_producer_unlock (ctx)) {", |
| " abort (); /* this really shouldn't happen */", |
| " }", |
| " if (vapi_is_nonblocking(ctx)) {", |
| " rv = VAPI_OK;", |
| " } else {", |
| " rv = vapi_dispatch(ctx);", |
| " }", |
| " } else {", |
| " %s(msg);" % self.get_swap_to_host_func_name(), |
| " if (VAPI_OK != vapi_producer_unlock (ctx)) {", |
| " abort (); /* this really shouldn't happen */", |
| " }", |
| " }", |
| " return rv;", |
| "}", |
| "", |
| ]) |
| |
| def get_event_cb_func_decl(self): |
| if not self.is_reply and not self.is_event: |
| raise Exception( |
| "Cannot register event callback for non-reply message") |
| if self.has_payload(): |
| return "\n".join([ |
| "void vapi_set_%s_event_cb (" % |
| self.get_c_name(), |
| " struct vapi_ctx_s *ctx, ", |
| (" vapi_error_e (*callback)(struct vapi_ctx_s *ctx, " |
| "void *callback_ctx, %s *payload)," % |
| self.get_payload_struct_name()), |
| " void *callback_ctx)", |
| ]) |
| else: |
| return "\n".join([ |
| "void vapi_set_%s_event_cb (" % |
| self.get_c_name(), |
| " struct vapi_ctx_s *ctx, ", |
| " vapi_error_e (*callback)(struct vapi_ctx_s *ctx, " |
| "void *callback_ctx),", |
| " void *callback_ctx)", |
| ]) |
| |
| def get_event_cb_func_def(self): |
| if not self.is_reply and not self.is_event: |
| raise Exception( |
| "Cannot register event callback for non-reply function") |
| return "\n".join([ |
| "%s" % self.get_event_cb_func_decl(), |
| "{", |
| (" vapi_set_event_cb(ctx, %s, (vapi_event_cb)callback, " |
| "callback_ctx);" % |
| self.get_msg_id_name()), |
| "}"]) |
| |
| def get_c_metadata_struct_name(self): |
| return "__vapi_metadata_%s" % self.name |
| |
| def get_c_constructor(self): |
| has_context = False |
| if self.header is not None: |
| has_context = self.header.has_field('context') |
| return '\n'.join([ |
| 'static void __attribute__((constructor)) __vapi_constructor_%s()' |
| % self.name, |
| '{', |
| ' static const char name[] = "%s";' % self.name, |
| ' static const char name_with_crc[] = "%s_%s";' |
| % (self.name, self.crc[2:]), |
| ' static vapi_message_desc_t %s = {' % |
| self.get_c_metadata_struct_name(), |
| ' name,', |
| ' sizeof(name) - 1,', |
| ' name_with_crc,', |
| ' sizeof(name_with_crc) - 1,', |
| ' true,' if has_context else ' false,', |
| ' offsetof(%s, context),' % self.header.get_c_name() |
| if has_context else ' 0,', |
| (' offsetof(%s, payload),' % self.get_c_name()) |
| if self.has_payload() else ' VAPI_INVALID_MSG_ID,', |
| ' sizeof(%s),' % self.get_c_name(), |
| ' (generic_swap_fn_t)%s,' % self.get_swap_to_be_func_name(), |
| ' (generic_swap_fn_t)%s,' % self.get_swap_to_host_func_name(), |
| ' VAPI_INVALID_MSG_ID,', |
| ' };', |
| '', |
| ' %s = vapi_register_msg(&%s);' % |
| (self.get_msg_id_name(), self.get_c_metadata_struct_name()), |
| ' VAPI_DBG("Assigned msg id %%d to %s", %s);' % |
| (self.name, self.get_msg_id_name()), |
| '}', |
| ]) |
| |
| |
| vapi_send_with_control_ping = """ |
| static inline vapi_error_e |
| vapi_send_with_control_ping (vapi_ctx_t ctx, void *msg, u32 context) |
| { |
| vapi_msg_control_ping *ping = vapi_alloc_control_ping (ctx); |
| if (!ping) |
| { |
| return VAPI_ENOMEM; |
| } |
| ping->header.context = context; |
| vapi_msg_control_ping_hton (ping); |
| return vapi_send2 (ctx, msg, ping); |
| } |
| """ |
| |
| |
| def emit_definition(parser, json_file, emitted, o): |
| if o in emitted: |
| return |
| 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) |
| if hasattr(o, "reply"): |
| emit_definition(parser, json_file, emitted, o.reply) |
| 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 |
| 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]: |
| if 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())) |
| 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()) |
| if o.is_reply or o.is_event: |
| 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("#endif") |
| print("") |
| 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) |
| orig_stdout = sys.stdout |
| sys.stdout = io |
| include_guard = "__included_%s" % ( |
| j.replace(".", "_").replace("/", "_").replace("-", "_")) |
| print("#ifndef %s" % include_guard) |
| print("#define %s" % include_guard) |
| print("") |
| print("#include <stdlib.h>") |
| print("#include <stddef.h>") |
| print("#include <arpa/inet.h>") |
| print("#include <vapi/vapi_internal.h>") |
| print("#include <vapi/vapi.h>") |
| print("#include <vapi/vapi_dbg.h>") |
| print("") |
| print("#ifdef __cplusplus") |
| print("extern \"C\" {") |
| print("#endif") |
| if name == "vpe.api.vapi.h": |
| print("") |
| print("static inline vapi_error_e vapi_send_with_control_ping " |
| "(vapi_ctx_t ctx, void * msg, u32 context);") |
| else: |
| print("#include <vapi/vpe.api.vapi.h>") |
| print("") |
| for m in parser.messages_by_json[j].values(): |
| print("extern vapi_msg_id_t %s;" % m.get_msg_id_name()) |
| print("") |
| print("#define DEFINE_VAPI_MSG_IDS_%s\\" % |
| f.replace(".", "_").replace("/", "_").replace("-", "_").upper()) |
| print("\\\n".join([ |
| " vapi_msg_id_t %s;" % m.get_msg_id_name() |
| for m in parser.messages_by_json[j].values() |
| ])) |
| print("") |
| print("") |
| emitted = [] |
| for e in parser.enums_by_json[j]: |
| emit_definition(parser, j, emitted, e) |
| for u in parser.unions_by_json[j]: |
| emit_definition(parser, j, emitted, u) |
| for t in parser.types_by_json[j]: |
| emit_definition(parser, j, emitted, t) |
| for m in parser.messages_by_json[j].values(): |
| emit_definition(parser, j, emitted, m) |
| |
| print("") |
| |
| if name == "vpe.api.vapi.h": |
| print("%s" % vapi_send_with_control_ping) |
| print("") |
| |
| print("#ifdef __cplusplus") |
| print("}") |
| print("#endif") |
| print("") |
| print("#endif") |
| sys.stdout = orig_stdout |
| |
| |
| def json_to_c_header_name(json_name): |
| if json_name.endswith(".json"): |
| return "%s.vapi.h" % os.path.splitext(json_name)[0] |
| raise Exception("Unexpected json name `%s'!" % json_name) |
| |
| |
| def gen_c_unified_headers(parser, logger, prefix, remove_path): |
| if prefix == "" or prefix is None: |
| prefix = "" |
| else: |
| prefix = "%s/" % prefix |
| for j in parser.json_files: |
| if remove_path: |
| d, f = os.path.split(j) |
| else: |
| f = j |
| with open('%s%s' % (prefix, json_to_c_header_name(f)), "w") as io: |
| gen_json_unified_header( |
| parser, logger, j, io, json_to_c_header_name(f)) |
| |
| |
| if __name__ == '__main__': |
| try: |
| verbose = int(os.getenv("V", 0)) |
| except: |
| verbose = 0 |
| |
| if verbose >= 2: |
| log_level = 10 |
| elif verbose == 1: |
| log_level = 20 |
| else: |
| log_level = 40 |
| |
| logging.basicConfig(stream=sys.stdout, level=log_level) |
| logger = logging.getLogger("VAPI C GEN") |
| logger.setLevel(log_level) |
| |
| argparser = argparse.ArgumentParser(description="VPP C API generator") |
| argparser.add_argument('files', metavar='api-file', action='append', |
| type=str, help='json api file' |
| '(may be specified multiple times)') |
| argparser.add_argument('--prefix', action='store', default=None, |
| help='path prefix') |
| argparser.add_argument('--remove-path', action='store_true', |
| help='remove path from filename') |
| args = argparser.parse_args() |
| |
| 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) |
| |
| # not using the model of having separate generated header and code files |
| # with generated symbols present in shared library (per discussion with |
| # Damjan), to avoid symbol version issues in .so |
| # gen_c_headers_and_code(jsonparser, logger, args.prefix) |
| |
| gen_c_unified_headers(jsonparser, logger, args.prefix, args.remove_path) |
| |
| for e in jsonparser.exceptions: |
| logger.warning(e) |