rename ISrsCodec size to nb_bytes.

@@ -67,9 +67,9 @@ public:
     virtual ~ISrsCodec();
 public:
     /**
-     * get the size of object to encode object to bytes.
+     * get the number of bytes to code to.
      */
-    virtual int size() = 0;
+    virtual int nb_bytes() = 0;
     /**
      * encode object to bytes in SrsBuffer.
      */

@@ -64,7 +64,7 @@ bool SrsKafkaString::empty()
     return _size <= 0;
 }
 
-int SrsKafkaString::size()
+int SrsKafkaString::nb_bytes()
 {
     return _size == -1? 2 : 2 + _size;
 }
@@ -159,7 +159,7 @@ bool SrsKafkaBytes::empty()
     return _size <= 0;
 }
 
-int SrsKafkaBytes::size()
+int SrsKafkaBytes::nb_bytes()
 {
     return 4 + (_size == -1? 0 : _size);
 }
@@ -234,7 +234,7 @@ SrsKafkaRequestHeader::~SrsKafkaRequestHeader()
 
 int SrsKafkaRequestHeader::header_size()
 {
-    return 2 + 2 + 4 + client_id->size();
+    return 2 + 2 + 4 + client_id->nb_bytes();
 }
 
 int SrsKafkaRequestHeader::message_size()
@@ -307,7 +307,7 @@ bool SrsKafkaRequestHeader::is_consumer_metadata_request()
     return _api_key == SrsKafkaApiKeyConsumerMetadataRequest;
 }
 
-int SrsKafkaRequestHeader::size()
+int SrsKafkaRequestHeader::nb_bytes()
 {
     return 4 + header_size();
 }
@@ -403,7 +403,7 @@ int32_t SrsKafkaResponseHeader::correlation_id()
     return _correlation_id;
 }
 
-int SrsKafkaResponseHeader::size()
+int SrsKafkaResponseHeader::nb_bytes()
 {
     return 4 + header_size();
 }
@@ -505,9 +505,9 @@ SrsKafkaApiKey SrsKafkaRequest::api_key()
     return header.api_key();
 }
 
-int SrsKafkaRequest::size()
+int SrsKafkaRequest::nb_bytes()
 {
-    return header.size();
+    return header.nb_bytes();
 }
 
 int SrsKafkaRequest::encode(SrsBuffer* buf)
@@ -533,9 +533,9 @@ void SrsKafkaResponse::update_header(int s)
     header.set_total_size(s);
 }
 
-int SrsKafkaResponse::size()
+int SrsKafkaResponse::nb_bytes()
 {
-    return header.size();
+    return header.nb_bytes();
 }
 
 int SrsKafkaResponse::encode(SrsBuffer* buf)
@@ -562,9 +562,9 @@ void SrsKafkaTopicMetadataRequest::add_topic(string topic)
     topics.append(new SrsKafkaString(topic));
 }
 
-int SrsKafkaTopicMetadataRequest::size()
+int SrsKafkaTopicMetadataRequest::nb_bytes()
 {
-    return SrsKafkaRequest::size() + topics.size();
+    return SrsKafkaRequest::nb_bytes() + topics.nb_bytes();
 }
 
 int SrsKafkaTopicMetadataRequest::encode(SrsBuffer* buf)
@@ -610,9 +610,9 @@ SrsKafkaBroker::~SrsKafkaBroker()
 {
 }
 
-int SrsKafkaBroker::size()
+int SrsKafkaBroker::nb_bytes()
 {
-    return 4 + host.size() + 4;
+    return 4 + host.nb_bytes() + 4;
 }
 
 int SrsKafkaBroker::encode(SrsBuffer* buf)
@@ -678,9 +678,9 @@ SrsKafkaPartitionMetadata::~SrsKafkaPartitionMetadata()
 {
 }
 
-int SrsKafkaPartitionMetadata::size()
+int SrsKafkaPartitionMetadata::nb_bytes()
 {
-    return 2 + 4 + 4 + replicas.size() + isr.size();
+    return 2 + 4 + 4 + replicas.nb_bytes() + isr.nb_bytes();
 }
 
 int SrsKafkaPartitionMetadata::encode(SrsBuffer* buf)
@@ -742,9 +742,9 @@ SrsKafkaTopicMetadata::~SrsKafkaTopicMetadata()
 {
 }
 
-int SrsKafkaTopicMetadata::size()
+int SrsKafkaTopicMetadata::nb_bytes()
 {
-    return 2 + name.size() + metadatas.size();
+    return 2 + name.nb_bytes() + metadatas.nb_bytes();
 }
 
 int SrsKafkaTopicMetadata::encode(SrsBuffer* buf)
@@ -803,9 +803,9 @@ SrsKafkaTopicMetadataResponse::~SrsKafkaTopicMetadataResponse()
 {
 }
 
-int SrsKafkaTopicMetadataResponse::size()
+int SrsKafkaTopicMetadataResponse::nb_bytes()
 {
-    return SrsKafkaResponse::size() + brokers.size() + metadatas.size();
+    return SrsKafkaResponse::nb_bytes() + brokers.nb_bytes() + metadatas.nb_bytes();
 }
 
 int SrsKafkaTopicMetadataResponse::encode(SrsBuffer* buf)
@@ -928,7 +928,7 @@ int SrsKafkaProtocol::send_and_free_message(SrsKafkaRequest* msg)
     // TODO: FIXME: refine for performance issue.
     SrsAutoFree(SrsKafkaRequest, msg);
     
-    int size = msg->size();
+    int size = msg->nb_bytes();
     if (size <= 0) {
         return ret;
     }
@@ -976,7 +976,7 @@ int SrsKafkaProtocol::recv_message(SrsKafkaResponse** pmsg)
         SrsKafkaResponseHeader header;
         
         // ensure enough bytes for response header.
-        if ((ret = reader->grow(skt, header.size())) != ERROR_SUCCESS) {
+        if ((ret = reader->grow(skt, header.nb_bytes())) != ERROR_SUCCESS) {
             srs_error("kafka recv message failed. ret=%d", ret);
             return ret;
         }
@@ -1077,7 +1077,7 @@ int SrsKafkaClient::fetch_metadata(string topic, SrsKafkaTopicMetadataResponse**
 vector<string> srs_kafka_array2vector(SrsKafkaArray<SrsKafkaString>* arr)
 {
     vector<string> strs;
-    for (int i = 0; i < arr->size(); i++) {
+    for (int i = 0; i < arr->nb_bytes(); i++) {
     }
     return strs;
 }

@@ -79,7 +79,7 @@ public:
     virtual bool empty();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -103,7 +103,7 @@ public:
     virtual bool empty();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -149,13 +149,13 @@ public:
     }
 // interface ISrsCodec
 public:
-    virtual int size()
+    virtual int nb_bytes()
     {
         int s = 4;
         
         for (SrsIterator it = elems.begin(); it != elems.end(); ++it) {
             T* elem = *it;
-            s += elem->size();
+            s += elem->nb_bytes();
         }
         
         return s;
@@ -230,9 +230,9 @@ public:
     }
     // interface ISrsCodec
 public:
-    virtual int size()
+    virtual int nb_bytes()
     {
-        return 4 + sizeof(int32_t) * (int)elems.size();
+        return 4 + 4 * (int)elems.size();
     }
     virtual int encode(SrsBuffer* buf)
     {
@@ -384,7 +384,7 @@ public:
     virtual bool is_consumer_metadata_request();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -450,7 +450,7 @@ public:
     virtual int32_t correlation_id();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -546,7 +546,7 @@ public:
     virtual SrsKafkaApiKey api_key();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -569,7 +569,7 @@ public:
     virtual void update_header(int s);
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -599,7 +599,7 @@ public:
     virtual void add_topic(std::string topic);
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -619,7 +619,7 @@ public:
     virtual ~SrsKafkaBroker();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -636,7 +636,7 @@ public:
     virtual ~SrsKafkaPartitionMetadata();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -651,7 +651,7 @@ public:
     virtual ~SrsKafkaTopicMetadata();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };
@@ -674,7 +674,7 @@ public:
     virtual ~SrsKafkaTopicMetadataResponse();
 // interface ISrsCodec
 public:
-    virtual int size();
+    virtual int nb_bytes();
     virtual int encode(SrsBuffer* buf);
     virtual int decode(SrsBuffer* buf);
 };