| #!/usr/bin/env python3 |
| |
| import argparse |
| import os |
| import sys |
| import logging |
| from vapi_json_parser import Field, Struct, Message, JsonParser,\ |
| SimpleType, StructType |
| |
| |
| class CField(Field): |
| def __init__( |
| self, |
| field_name, |
| field_type, |
| array_len=None, |
| nelem_field=None): |
| super().__init__(field_name, field_type, array_len, nelem_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 { int 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 { int 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 { int 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 { int 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() |
| |
| |
| class CStruct(Struct): |
| def __init__(self, name, fields): |
| super().__init__(name, fields) |
| |
| 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]), |
| "} %s;" % self.get_c_name()]) |
| |
| |
| 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 __init__(self, name): |
| super().__init__(name) |
| |
| 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): |
| x = "%s%s" % (struct, var) |
| return "%s = %s(%s);" % (x, self.get_swap_to_be_func_name(), x) |
| |
| def get_swap_to_host_code(self, struct, var): |
| x = "%s%s" % (struct, var) |
| return "%s = %s(%s);" % (x, 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 CStructType (StructType, CStruct): |
| def __init__(self, definition, typedict, field_class): |
| super().__init__(definition, typedict, field_class) |
| |
| 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, typedict, |
| struct_type_class, simple_type_class, field_class): |
| super().__init__(logger, definition, typedict, struct_type_class, |
| simple_type_class, field_class) |
| 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_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_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" % |
| self.get_alloc_func_vla_field_length_name(f) |
| for f in self.fields |
| if f.nelem_field is not None])) |
| |
| 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([ |
| " + 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 |
| ])), |
| " msg = vapi_msg_alloc(ctx, size);", |
| " if (!msg) {", |
| " return NULL;", |
| " }", |
| ] + 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]), |
| " 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.is_dump() 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")), |
| " 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(): |
| raise Exception( |
| "Cannot register event callback for non-reply function") |
| 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(): |
| 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 '-1,', |
| ' 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(), |
| ' ~0,', |
| ' };', |
| '', |
| ' %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 gen_json_header(parser, logger, j, io): |
| logger.info("Generating header `%s'" % io.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 <vapi_internal.h>") |
| print("") |
| if io.name == "vpe.api.vapi.h": |
| print("static inline vapi_error_e vapi_send_with_control_ping " |
| "(vapi_ctx_t ctx, void * msg, u32 context);") |
| print("") |
| for m in parser.messages_by_json[j].values(): |
| print("extern vapi_msg_id_t %s;" % m.get_msg_id_name()) |
| print("") |
| for t in parser.types_by_json[j].values(): |
| try: |
| print("%s" % t.get_c_def()) |
| print("") |
| except: |
| pass |
| for t in parser.types_by_json[j].values(): |
| print("%s;" % t.get_swap_to_be_func_decl()) |
| print("") |
| print("%s;" % t.get_swap_to_host_func_decl()) |
| print("") |
| for m in parser.messages_by_json[j].values(): |
| print("%s" % m.get_c_def()) |
| print("") |
| for m in parser.messages_by_json[j].values(): |
| if not m.is_reply(): |
| print("%s;" % m.get_alloc_func_decl()) |
| print("") |
| print("%s;" % m.get_op_func_decl()) |
| if m.has_payload(): |
| print("%s;" % m.get_swap_payload_to_be_func_decl()) |
| print("") |
| print("%s;" % m.get_swap_payload_to_host_func_decl()) |
| print("") |
| print("%s;" % m.get_calc_msg_size_func_decl()) |
| print("") |
| print("%s;" % m.get_swap_to_host_func_decl()) |
| print("") |
| print("%s;" % m.get_swap_to_be_func_decl()) |
| print("") |
| for m in parser.messages_by_json[j].values(): |
| if not m.is_reply(): |
| continue |
| print("%s;" % m.get_event_cb_func_decl()) |
| print("") |
| |
| if io.name == "vpe.api.vapi.h": |
| print("%s" % vapi_send_with_control_ping) |
| print("") |
| |
| print("#endif") |
| sys.stdout = orig_stdout |
| |
| |
| def gen_json_code(parser, logger, j, io): |
| logger.info("Generating code `%s'" % io.name) |
| orig_stdout = sys.stdout |
| sys.stdout = io |
| print("#include <%s>" % json_to_header_name(j)) |
| print("#include <stdlib.h>") |
| print("#include <stddef.h>") |
| print("#include <arpa/inet.h>") |
| print("#include <vapi_internal.h>") |
| print("#include <vapi_dbg.h>") |
| print("") |
| for t in parser.types_by_json[j].values(): |
| print("%s" % t.get_swap_to_be_func_def()) |
| print("") |
| print("%s" % t.get_swap_to_host_func_def()) |
| print("") |
| for m in parser.messages_by_json[j].values(): |
| if m.has_payload(): |
| print("%s" % m.get_swap_payload_to_be_func_def()) |
| print("") |
| print("%s" % m.get_swap_payload_to_host_func_def()) |
| print("") |
| print("%s" % m.get_calc_msg_size_func_def()) |
| print("") |
| print("%s" % m.get_swap_to_be_func_def()) |
| print("") |
| print("%s" % m.get_swap_to_host_func_def()) |
| print("") |
| for m in parser.messages_by_json[j].values(): |
| if m.is_reply(): |
| continue |
| print("%s" % m.get_alloc_func_def()) |
| print("") |
| print("%s" % 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;" % m.get_event_cb_func_def()) |
| print("") |
| print("") |
| for m in parser.messages_by_json[j].values(): |
| print("vapi_msg_id_t %s;" % m.get_msg_id_name()) |
| sys.stdout = orig_stdout |
| |
| |
| def gen_json_unified_header(parser, logger, j, io): |
| logger.info("Generating header `%s'" % io.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 <vapi_internal.h>") |
| print("#include <vapi.h>") |
| print("#include <stdlib.h>") |
| print("#include <stddef.h>") |
| print("#include <arpa/inet.h>") |
| print("#include <vapi_dbg.h>") |
| if io.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 <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\\" % |
| j.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("") |
| for t in parser.types_by_json[j].values(): |
| try: |
| print("%s" % t.get_c_def()) |
| print("") |
| except: |
| pass |
| for m in parser.messages_by_json[j].values(): |
| print("%s" % m.get_c_def()) |
| print("") |
| |
| print("") |
| function_attrs = "static inline " |
| for t in parser.types_by_json[j].values(): |
| 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("") |
| 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 io.name == "vpe.api.vapi.h": |
| print("%s" % vapi_send_with_control_ping) |
| print("") |
| |
| print("#endif") |
| sys.stdout = orig_stdout |
| |
| |
| def json_to_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 json_to_code_name(json_name): |
| if json_name.endswith(".json"): |
| return "%s.vapi.c" % os.path.splitext(json_name)[0] |
| raise Exception("Unexpected json name `%s'!" % json_name) |
| |
| |
| def gen_c_headers_and_code(parser, logger, prefix): |
| if prefix == "" or prefix is None: |
| prefix = "" |
| else: |
| prefix = "%s/" % prefix |
| for j in parser.json_files: |
| with open('%s%s' % (prefix, json_to_header_name(j)), "w") as io: |
| gen_json_header(parser, logger, j, io) |
| with open('%s%s' % (prefix, json_to_code_name(j)), "w") as io: |
| gen_json_code(parser, logger, j, io) |
| |
| |
| def gen_c_unified_headers(parser, logger, prefix): |
| if prefix == "" or prefix is None: |
| prefix = "" |
| else: |
| prefix = "%s/" % prefix |
| for j in parser.json_files: |
| with open('%s%s' % (prefix, json_to_header_name(j)), "w") as io: |
| gen_json_unified_header(parser, logger, j, io) |
| |
| |
| 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 JSON API parser") |
| 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') |
| args = argparser.parse_args() |
| |
| jsonparser = JsonParser(logger, args.files, |
| simple_type_class=CSimpleType, |
| 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) |
| |
| for e in jsonparser.exceptions: |
| logger.error(e) |