首页 > 代码库 > caffe源码学习之Proto数据格式【１】
caffe源码学习之Proto数据格式【１】
前言：
由于业务需要，接触caffe已经有接近半年，一直忙着阅读各种论文，重现大大小小的模型. 期间也总结过一些caffe源码学习笔记，断断续续，这次打算系统的记录一下caffe源码学习笔记，巩固一下C++，同时也梳理一下自己之前的理解。
正文：
我们先不看caffe的框架结构，先介绍一下caffe.proto，是google开源的一种数据交互格式－－Ｇoogle Protobuf,这种数据的格式,我们可以看到caffe.proto中内容：
syntax = "proto2";package caffe;// Specifies the shape (dimensions) of a Blob.message BlobShape { repeated int64 dim = 1 [packed = true];}message BlobProto { optional BlobShape shape = 7; repeated float data = http://www.mamicode.com/5 [packed = true]; repeated float diff = 6 [packed = true]; repeated double double_data = http://www.mamicode.com/8 [packed = true]; repeated double double_diff = 9 [packed = true]; // 4D dimensions -- deprecated. Use "shape" instead. optional int32 num = 1 [default = 0]; optional int32 channels = 2 [default = 0]; optional int32 height = 3 [default = 0]; optional int32 width = 4 [default = 0];}.......
当我们在编译完成caffe之后，会自动在src/caffe/proto中生成两个文件caffe.pb.h 和caffe.pb.cc
那么这种数据格式在程序中是如何被使用的呢？ 我们举一个简单的例子,来演示caffe.proto生成caffe.pb.h和caffe.pb.cc以及被调用的过程
如果你之前能够编译caffe成功，则说明你已经成功安装了Protobuf,那么我简单的编写一个使用Protobuf的例子吧.
我们先编写一个文件caffe.proto:
package caffe; message student { required int32 age = 1; //ID required 表示必要字段 required string name = 2; //str 必要字段 optional int32 grade = 3 ; //optional field 可选字段，可以有无，最多ｂ }
然后我们执行如下操作。
protoc -I=. --cpp_out=. ./caffe.proto
protobuf会自动生成.cc和.h文件
1 // Generated by the protocol buffer compiler. DO NOT EDIT! 2 // source: caffe.proto 3 4 #ifndef PROTOBUF_caffe_2eproto__INCLUDED 5 #define PROTOBUF_caffe_2eproto__INCLUDED 6 7 #include <string> 8 9 #include <google/protobuf/stubs/common.h> 10 11 #if GOOGLE_PROTOBUF_VERSION < 2005000 12 #error This file was generated by a newer version of protoc which is 13 #error incompatible with your Protocol Buffer headers. Please update 14 #error your headers. 15 #endif 16 #if 2005000 < GOOGLE_PROTOBUF_MIN_PROTOC_VERSION 17 #error This file was generated by an older version of protoc which is 18 #error incompatible with your Protocol Buffer headers. Please 19 #error regenerate this file with a newer version of protoc. 20 #endif 21 22 #include <google/protobuf/generated_message_util.h> 23 #include <google/protobuf/message.h> 24 #include <google/protobuf/repeated_field.h> 25 #include <google/protobuf/extension_set.h> 26 #include <google/protobuf/unknown_field_set.h> 27 // @@protoc_insertion_point(includes) 28 29 namespace caffe { 30 31 // Internal implementation detail -- do not call these. 32 void protobuf_AddDesc_caffe_2eproto(); 33 void protobuf_AssignDesc_caffe_2eproto(); 34 void protobuf_ShutdownFile_caffe_2eproto(); 35 36 class student; 37 38 // =================================================================== 39 40 class student : public ::google::protobuf::Message { 41 public: 42 student(); 43 virtual ~student(); 44 45 student(const student& from); 46 47 inline student& operator=(const student& from) { 48 CopyFrom(from); 49 return *this; 50 } 51 52 inline const ::google::protobuf::UnknownFieldSet& unknown_fields() const { 53 return _unknown_fields_; 54 } 55 56 inline ::google::protobuf::UnknownFieldSet* mutable_unknown_fields() { 57 return &_unknown_fields_; 58 } 59 60 static const ::google::protobuf::Descriptor* descriptor(); 61 static const student& default_instance(); 62 63 void Swap(student* other); 64 65 // implements Message ---------------------------------------------- 66 67 student* New() const; 68 void CopyFrom(const ::google::protobuf::Message& from); 69 void MergeFrom(const ::google::protobuf::Message& from); 70 void CopyFrom(const student& from); 71 void MergeFrom(const student& from); 72 void Clear(); 73 bool IsInitialized() const; 74 75 int ByteSize() const; 76 bool MergePartialFromCodedStream( 77 ::google::protobuf::io::CodedInputStream* input); 78 void SerializeWithCachedSizes( 79 ::google::protobuf::io::CodedOutputStream* output) const; 80 ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const; 81 int GetCachedSize() const { return _cached_size_; } 82 private: 83 void SharedCtor(); 84 void SharedDtor(); 85 void SetCachedSize(int size) const; 86 public: 87 88 ::google::protobuf::Metadata GetMetadata() const; 89 90 // nested types ---------------------------------------------------- 91 92 // accessors ------------------------------------------------------- 93 94 // required int32 age = 1; 95 inline bool has_age() const; 96 inline void clear_age(); 97 static const int kAgeFieldNumber = 1; 98 inline ::google::protobuf::int32 age() const; 99 inline void set_age(::google::protobuf::int32 value);100 101 // required string name = 2;102 inline bool has_name() const;103 inline void clear_name();104 static const int kNameFieldNumber = 2;105 inline const ::std::string& name() const;106 inline void set_name(const ::std::string& value);107 inline void set_name(const char* value);108 inline void set_name(const char* value, size_t size);109 inline ::std::string* mutable_name();110 inline ::std::string* release_name();111 inline void set_allocated_name(::std::string* name);112 113 // optional int32 grade = 3;114 inline bool has_grade() const;115 inline void clear_grade();116 static const int kGradeFieldNumber = 3;117 inline ::google::protobuf::int32 grade() const;118 inline void set_grade(::google::protobuf::int32 value);119 120 // @@protoc_insertion_point(class_scope:caffe.student)121 private:122 inline void set_has_age();123 inline void clear_has_age();124 inline void set_has_name();125 inline void clear_has_name();126 inline void set_has_grade();127 inline void clear_has_grade();128 129 ::google::protobuf::UnknownFieldSet _unknown_fields_;130 131 ::std::string* name_;132 ::google::protobuf::int32 age_;133 ::google::protobuf::int32 grade_;134 135 mutable int _cached_size_;136 ::google::protobuf::uint32 _has_bits_[(3 + 31) / 32];137 138 friend void protobuf_AddDesc_caffe_2eproto();139 friend void protobuf_AssignDesc_caffe_2eproto();140 friend void protobuf_ShutdownFile_caffe_2eproto();141 142 void InitAsDefaultInstance();143 static student* default_instance_;144 };145 // ===================================================================146 147 148 // ===================================================================149 150 // student151 152 // required int32 age = 1;153 inline bool student::has_age() const {154 return (_has_bits_[0] & 0x00000001u) != 0;155 }156 inline void student::set_has_age() {157 _has_bits_[0] |= 0x00000001u;158 }159 inline void student::clear_has_age() {160 _has_bits_[0] &= ~0x00000001u;161 }162 inline void student::clear_age() {163 age_ = 0;164 clear_has_age();165 }166 inline ::google::protobuf::int32 student::age() const {167 return age_;168 }169 inline void student::set_age(::google::protobuf::int32 value) {170 set_has_age();171 age_ = value;172 }173 174 // required string name = 2;175 inline bool student::has_name() const {176 return (_has_bits_[0] & 0x00000002u) != 0;177 }178 inline void student::set_has_name() {179 _has_bits_[0] |= 0x00000002u;180 }181 inline void student::clear_has_name() {182 _has_bits_[0] &= ~0x00000002u;183 }184 inline void student::clear_name() {185 if (name_ != &::google::protobuf::internal::kEmptyString) {186 name_->clear();187 }188 clear_has_name();189 }190 inline const ::std::string& student::name() const {191 return *name_;192 }193 inline void student::set_name(const ::std::string& value) {194 set_has_name();195 if (name_ == &::google::protobuf::internal::kEmptyString) {196 name_ = new ::std::string;197 }198 name_->assign(value);199 }200 inline void student::set_name(const char* value) {201 set_has_name();202 if (name_ == &::google::protobuf::internal::kEmptyString) {203 name_ = new ::std::string;204 }205 name_->assign(value);206 }207 inline void student::set_name(const char* value, size_t size) {208 set_has_name();209 if (name_ == &::google::protobuf::internal::kEmptyString) {210 name_ = new ::std::string;211 }212 name_->assign(reinterpret_cast<const char*>(value), size);213 }214 inline ::std::string* student::mutable_name() {215 set_has_name();216 if (name_ == &::google::protobuf::internal::kEmptyString) {217 name_ = new ::std::string;218 }219 return name_;220 }221 inline ::std::string* student::release_name() {222 clear_has_name();223 if (name_ == &::google::protobuf::internal::kEmptyString) {224 return NULL;225 } else {226 ::std::string* temp = name_;227 name_ = const_cast< ::std::string*>(&::google::protobuf::internal::kEmptyString);228 return temp;229 }230 }231 inline void student::set_allocated_name(::std::string* name) {232 if (name_ != &::google::protobuf::internal::kEmptyString) {233 delete name_;234 }235 if (name) {236 set_has_name();237 name_ = name;238 } else {239 clear_has_name();240 name_ = const_cast< ::std::string*>(&::google::protobuf::internal::kEmptyString);241 }242 }243 244 // optional int32 grade = 3;245 inline bool student::has_grade() const {246 return (_has_bits_[0] & 0x00000004u) != 0;247 }248 inline void student::set_has_grade() {249 _has_bits_[0] |= 0x00000004u;250 }251 inline void student::clear_has_grade() {252 _has_bits_[0] &= ~0x00000004u;253 }254 inline void student::clear_grade() {255 grade_ = 0;256 clear_has_grade();257 }258 inline ::google::protobuf::int32 student::grade() const {259 return grade_;260 }261 inline void student::set_grade(::google::protobuf::int32 value) {262 set_has_grade();263 grade_ = value;264 }265 266 267 // @@protoc_insertion_point(namespace_scope)268 269 } // namespace caffe270 271 #ifndef SWIG272 namespace google {273 namespace protobuf {274 275 276 } // namespace google277 } // namespace protobuf278 #endif // SWIG279 280 // @@protoc_insertion_point(global_scope)281 282 #endif // PROTOBUF_caffe_2eproto__INCLUDED
1 // Generated by the protocol buffer compiler. DO NOT EDIT! 2 // source: caffe.proto 3 4 #define INTERNAL_SUPPRESS_PROTOBUF_FIELD_DEPRECATION 5 #include "caffe.pb.h" 6 7 #include <algorithm> 8 9 #include <google/protobuf/stubs/common.h> 10 #include <google/protobuf/stubs/once.h> 11 #include <google/protobuf/io/coded_stream.h> 12 #include <google/protobuf/wire_format_lite_inl.h> 13 #include <google/protobuf/descriptor.h> 14 #include <google/protobuf/generated_message_reflection.h> 15 #include <google/protobuf/reflection_ops.h> 16 #include <google/protobuf/wire_format.h> 17 // @@protoc_insertion_point(includes) 18 19 namespace caffe { 20 21 namespace { 22 23 const ::google::protobuf::Descriptor* student_descriptor_ = NULL; 24 const ::google::protobuf::internal::GeneratedMessageReflection* 25 student_reflection_ = NULL; 26 27 } // namespace 28 29 30 void protobuf_AssignDesc_caffe_2eproto() { 31 protobuf_AddDesc_caffe_2eproto(); 32 const ::google::protobuf::FileDescriptor* file = 33 ::google::protobuf::DescriptorPool::generated_pool()->FindFileByName( 34 "caffe.proto"); 35 GOOGLE_CHECK(file != NULL); 36 student_descriptor_ = file->message_type(0); 37 static const int student_offsets_[3] = { 38 GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(student, age_), 39 GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(student, name_), 40 GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(student, grade_), 41 }; 42 student_reflection_ = 43 new ::google::protobuf::internal::GeneratedMessageReflection( 44 student_descriptor_, 45 student::default_instance_, 46 student_offsets_, 47 GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(student, _has_bits_[0]), 48 GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET(student, _unknown_fields_), 49 -1, 50 ::google::protobuf::DescriptorPool::generated_pool(), 51 ::google::protobuf::MessageFactory::generated_factory(), 52 sizeof(student)); 53 } 54 55 namespace { 56 57 GOOGLE_PROTOBUF_DECLARE_ONCE(protobuf_AssignDescriptors_once_); 58 inline void protobuf_AssignDescriptorsOnce() { 59 ::google::protobuf::GoogleOnceInit(&protobuf_AssignDescriptors_once_, 60 &protobuf_AssignDesc_caffe_2eproto); 61 } 62 63 void protobuf_RegisterTypes(const ::std::string&) { 64 protobuf_AssignDescriptorsOnce(); 65 ::google::protobuf::MessageFactory::InternalRegisterGeneratedMessage( 66 student_descriptor_, &student::default_instance()); 67 } 68 69 } // namespace 70 71 void protobuf_ShutdownFile_caffe_2eproto() { 72 delete student::default_instance_; 73 delete student_reflection_; 74 } 75 76 void protobuf_AddDesc_caffe_2eproto() { 77 static bool already_here = false; 78 if (already_here) return; 79 already_here = true; 80 GOOGLE_PROTOBUF_VERIFY_VERSION; 81 82 ::google::protobuf::DescriptorPool::InternalAddGeneratedFile( 83 "\n\013caffe.proto\022\005caffe\"3\n\007student\022\013\n\003age\030\001" 84 " \002(\005\022\014\n\004name\030\002 \002(\t\022\r\n\005grade\030\003 \001(\005", 73); 85 ::google::protobuf::MessageFactory::InternalRegisterGeneratedFile( 86 "caffe.proto", &protobuf_RegisterTypes); 87 student::default_instance_ = new student(); 88 student::default_instance_->InitAsDefaultInstance(); 89 ::google::protobuf::internal::OnShutdown(&protobuf_ShutdownFile_caffe_2eproto); 90 } 91 92 // Force AddDescriptors() to be called at static initialization time. 93 struct StaticDescriptorInitializer_caffe_2eproto { 94 StaticDescriptorInitializer_caffe_2eproto() { 95 protobuf_AddDesc_caffe_2eproto(); 96 } 97 } static_descriptor_initializer_caffe_2eproto_; 98 99 // ===================================================================100 101 #ifndef _MSC_VER102 const int student::kAgeFieldNumber;103 const int student::kNameFieldNumber;104 const int student::kGradeFieldNumber;105 #endif // !_MSC_VER106 107 student::student()108 : ::google::protobuf::Message() {109 SharedCtor();110 }111 112 void student::InitAsDefaultInstance() {113 }114 115 student::student(const student& from)116 : ::google::protobuf::Message() {117 SharedCtor();118 MergeFrom(from);119 }120 121 void student::SharedCtor() {122 _cached_size_ = 0;123 age_ = 0;124 name_ = const_cast< ::std::string*>(&::google::protobuf::internal::kEmptyString);125 grade_ = 0;126 ::memset(_has_bits_, 0, sizeof(_has_bits_));127 }128 129 student::~student() {130 SharedDtor();131 }132 133 void student::SharedDtor() {134 if (name_ != &::google::protobuf::internal::kEmptyString) {135 delete name_;136 }137 if (this != default_instance_) {138 }139 }140 141 void student::SetCachedSize(int size) const {142 GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();143 _cached_size_ = size;144 GOOGLE_SAFE_CONCURRENT_WRITES_END();145 }146 const ::google::protobuf::Descriptor* student::descriptor() {147 protobuf_AssignDescriptorsOnce();148 return student_descriptor_;149 }150 151 const student& student::default_instance() {152 if (default_instance_ == NULL) protobuf_AddDesc_caffe_2eproto();153 return *default_instance_;154 }155 156 student* student::default_instance_ = NULL;157 158 student* student::New() const {159 return new student;160 }161 162 void student::Clear() {163 if (_has_bits_[0 / 32] & (0xffu << (0 % 32))) {164 age_ = 0;165 if (has_name()) {166 if (name_ != &::google::protobuf::internal::kEmptyString) {167 name_->clear();168 }169 }170 grade_ = 0;171 }172 ::memset(_has_bits_, 0, sizeof(_has_bits_));173 mutable_unknown_fields()->Clear();174 }175 176 bool student::MergePartialFromCodedStream(177 ::google::protobuf::io::CodedInputStream* input) {178 #define DO_(EXPRESSION) if (!(EXPRESSION)) return false179 ::google::protobuf::uint32 tag;180 while ((tag = input->ReadTag()) != 0) {181 switch (::google::protobuf::internal::WireFormatLite::GetTagFieldNumber(tag)) {182 // required int32 age = 1;183 case 1: {184 if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==185 ::google::protobuf::internal::WireFormatLite::WIRETYPE_VARINT) {186 DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<187 ::google::protobuf::int32, ::google::protobuf::internal::WireFormatLite::TYPE_INT32>(188 input, &age_)));189 set_has_age();190 } else {191 goto handle_uninterpreted;192 }193 if (input->ExpectTag(18)) goto parse_name;194 break;195 }196 197 // required string name = 2;198 case 2: {199 if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==200 ::google::protobuf::internal::WireFormatLite::WIRETYPE_LENGTH_DELIMITED) {201 parse_name:202 DO_(::google::protobuf::internal::WireFormatLite::ReadString(203 input, this->mutable_name()));204 ::google::protobuf::internal::WireFormat::VerifyUTF8String(205 this->name().data(), this->name().length(),206 ::google::protobuf::internal::WireFormat::PARSE);207 } else {208 goto handle_uninterpreted;209 }210 if (input->ExpectTag(24)) goto parse_grade;211 break;212 }213 214 // optional int32 grade = 3;215 case 3: {216 if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==217 ::google::protobuf::internal::WireFormatLite::WIRETYPE_VARINT) {218 parse_grade:219 DO_((::google::protobuf::internal::WireFormatLite::ReadPrimitive<220 ::google::protobuf::int32, ::google::protobuf::internal::WireFormatLite::TYPE_INT32>(221 input, &grade_)));222 set_has_grade();223 } else {224 goto handle_uninterpreted;225 }226 if (input->ExpectAtEnd()) return true;227 break;228 }229 230 default: {231 handle_uninterpreted:232 if (::google::protobuf::internal::WireFormatLite::GetTagWireType(tag) ==233 ::google::protobuf::internal::WireFormatLite::WIRETYPE_END_GROUP) {234 return true;235 }236 DO_(::google::protobuf::internal::WireFormat::SkipField(237 input, tag, mutable_unknown_fields()));238 break;239 }240 }241 }242 return true;243 #undef DO_244 }245 246 void student::SerializeWithCachedSizes(247 ::google::protobuf::io::CodedOutputStream* output) const {248 // required int32 age = 1;249 if (has_age()) {250 ::google::protobuf::internal::WireFormatLite::WriteInt32(1, this->age(), output);251 }252 253 // required string name = 2;254 if (has_name()) {255 ::google::protobuf::internal::WireFormat::VerifyUTF8String(256 this->name().data(), this->name().length(),257 ::google::protobuf::internal::WireFormat::SERIALIZE);258 ::google::protobuf::internal::WireFormatLite::WriteString(259 2, this->name(), output);260 }261 262 // optional int32 grade = 3;263 if (has_grade()) {264 ::google::protobuf::internal::WireFormatLite::WriteInt32(3, this->grade(), output);265 }266 267 if (!unknown_fields().empty()) {268 ::google::protobuf::internal::WireFormat::SerializeUnknownFields(269 unknown_fields(), output);270 }271 }272 273 ::google::protobuf::uint8* student::SerializeWithCachedSizesToArray(274 ::google::protobuf::uint8* target) const {275 // required int32 age = 1;276 if (has_age()) {277 target = ::google::protobuf::internal::WireFormatLite::WriteInt32ToArray(1, this->age(), target);278 }279 280 // required string name = 2;281 if (has_name()) {282 ::google::protobuf::internal::WireFormat::VerifyUTF8String(283 this->name().data(), this->name().length(),284 ::google::protobuf::internal::WireFormat::SERIALIZE);285 target =286 ::google::protobuf::internal::WireFormatLite::WriteStringToArray(287 2, this->name(), target);288 }289 290 // optional int32 grade = 3;291 if (has_grade()) {292 target = ::google::protobuf::internal::WireFormatLite::WriteInt32ToArray(3, this->grade(), target);293 }294 295 if (!unknown_fields().empty()) {296 target = ::google::protobuf::internal::WireFormat::SerializeUnknownFieldsToArray(297 unknown_fields(), target);298 }299 return target;300 }301 302 int student::ByteSize() const {303 int total_size = 0;304 305 if (_has_bits_[0 / 32] & (0xffu << (0 % 32))) {306 // required int32 age = 1;307 if (has_age()) {308 total_size += 1 +309 ::google::protobuf::internal::WireFormatLite::Int32Size(310 this->age());311 }312 313 // required string name = 2;314 if (has_name()) {315 total_size += 1 +316 ::google::protobuf::internal::WireFormatLite::StringSize(317 this->name());318 }319 320 // optional int32 grade = 3;321 if (has_grade()) {322 total_size += 1 +323 ::google::protobuf::internal::WireFormatLite::Int32Size(324 this->grade());325 }326 327 }328 if (!unknown_fields().empty()) {329 total_size +=330 ::google::protobuf::internal::WireFormat::ComputeUnknownFieldsSize(331 unknown_fields());332 }333 GOOGLE_SAFE_CONCURRENT_WRITES_BEGIN();334 _cached_size_ = total_size;335 GOOGLE_SAFE_CONCURRENT_WRITES_END();336 return total_size;337 }338 339 void student::MergeFrom(const ::google::protobuf::Message& from) {340 GOOGLE_CHECK_NE(&from, this);341 const student* source =342 ::google::protobuf::internal::dynamic_cast_if_available<const student*>(343 &from);344 if (source == NULL) {345 ::google::protobuf::internal::ReflectionOps::Merge(from, this);346 } else {347 MergeFrom(*source);348 }349 }350 351 void student::MergeFrom(const student& from) {352 GOOGLE_CHECK_NE(&from, this);353 if (from._has_bits_[0 / 32] & (0xffu << (0 % 32))) {354 if (from.has_age()) {355 set_age(from.age());356 }357 if (from.has_name()) {358 set_name(from.name());359 }360 if (from.has_grade()) {361 set_grade(from.grade());362 }363 }364 mutable_unknown_fields()->MergeFrom(from.unknown_fields());365 }366 367 void student::CopyFrom(const ::google::protobuf::Message& from) {368 if (&from == this) return;369 Clear();370 MergeFrom(from);371 }372 373 void student::CopyFrom(const student& from) {374 if (&from == this) return;375 Clear();376 MergeFrom(from);377 }378 379 bool student::IsInitialized() const {380 if ((_has_bits_[0] & 0x00000003) != 0x00000003) return false;381 382 return true;383 }384 385 void student::Swap(student* other) {386 if (other != this) {387 std::swap(age_, other->age_);388 std::swap(name_, other->name_);389 std::swap(grade_, other->grade_);390 std::swap(_has_bits_[0], other->_has_bits_[0]);391 _unknown_fields_.Swap(&other->_unknown_fields_);392 std::swap(_cached_size_, other->_cached_size_);393 }394 }395 396 ::google::protobuf::Metadata student::GetMetadata() const {397 protobuf_AssignDescriptorsOnce();398 ::google::protobuf::Metadata metadata;399 metadata.descriptor = student_descriptor_;400 metadata.reflection = student_reflection_;401 return metadata;402 }403 404 405 // @@protoc_insertion_point(namespace_scope)406 407 } // namespace caffe408 409 // @@protoc_insertion_point(global_scope)
生成之后，我们编写一个读取文件caffeReader.cpp
#include "caffe.pb.h"#include<iostream>#include<ios>using namespace std;void InfoStudents(const caffe::student & stu){ cout<< "student info:"<<endl; cout<<"name: "<<stu.name()<<endl; cout<<"age: "<<stu.age()<<endl; cout<<"grade: "<<stu.grade()<<endl;}int main(void){ caffe::student stu; stu.set_age(18); stu.set_name("gongxijun"); stu.set_grade(146); InfoStudents(stu); return 0;}
编译完成之后，我们执行如下命令：
g++ caffeRead.cpp -o caffeReader caffe.pb.cc -I /usr/local/protobuf/include -L /usr/local/protobuf/lib -lprotobuf -pthread
生成二进制执行文件caffeReader.我们运行该文件就会显示如下信息：
知道了proto文件是如何使用之，再去caffe.proto中看看caffe中定义的数据结构：
caffe源码学习之Proto数据格式【１】
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