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gk_message.c
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gk_message.c
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//
// Created by wujian on 16/1/11.
//
#include "gk_message.h"
#define MAX_BUFF 5120
#define LENGTH_CRLF 2
char * encode_int_message(struct message m)
{
int * data = (int *)m.data;
char * content = long2AsciiBytes(*data);
size_t size = strlen(content)+1+strlen(CRLF);
char * encode = calloc(size,sizeof(char));
encode[0]=INTEGER_MARKER;
strcat(encode,content);
strcat(encode,CRLF);
free(content);
return encode;
}
char * encode_str_message(struct message m)
{
char * data = (char *)m.data;
char * capacity = long2AsciiBytes(m.capacity);
size_t size = 0;
char *encode;
if(m.capacity<1){
size = strlen(capacity)+3;
encode = calloc(size,sizeof(char));
encode[0]=STRING_MARKER;
strcat(encode,capacity);
strcat(encode,CRLF);
free(capacity);
return encode;
}else
{
size = strlen(capacity)+strlen(data)+1+2*strlen(CRLF);
encode = calloc(size,sizeof(char));
encode[0]=STRING_MARKER;
strcat(encode,capacity);
strcat(encode,CRLF);
strcat(encode,data);
strcat(encode,CRLF);
free(capacity);
return encode;
}
}
char * encode_ary_message(struct message *ms,size_t length)
{
char * capacity = long2AsciiBytes(length);
size_t size = 0;
char *encode;
if(atoi(capacity)<1) {
size = strlen(capacity)+3;
encode = calloc(size,sizeof(char));
encode[0]=ARRAY_MARKER;
strcat(encode,capacity);
strcat(encode,CRLF);
free(capacity);
return encode;
}else
{
char * maxEncode = calloc(MAX_BUFF,sizeof(char));
maxEncode[0] = ARRAY_MARKER;
strcat(maxEncode,capacity);
strcat(maxEncode,CRLF);
for (int i=0;i<length;i++){
char * tempCode;
struct message m = ms[i];
if(m.m_type ==int_msg) {
tempCode =encode_int_message(m);
}else if(m.m_type == string_msg) {
tempCode = encode_str_message(m);
}
strcat(maxEncode,tempCode);
free(tempCode);
}
size = strlen(maxEncode);
char * subEncode = calloc(size,sizeof(char));
strcat(subEncode,maxEncode);
free(maxEncode);
return subEncode;
}
}
struct message * decode_message(char * msg)
{
char * marker = &msg[0];
struct message * m = NULL;
if(*marker ==INTEGER_MARKER){
m = decode_int_message(++msg);
}else if(*marker == STRING_MARKER){
m = decode_str_message(++msg);
}else {
m =decode_ary_message(++msg);
}
return m;
}
struct message * decode_str_message(char * msg)
{
char* lptr = seekString(msg,CRLF);
long length = asciiBytes2long(lptr);
char *content = calloc((size_t)length,sizeof(char));
mid(content,msg,(int)length,LENGTH_CRLF+(int)strlen(lptr));
struct message * m = malloc(sizeof(struct message));
m->m_type = string_msg;
m->data =calloc(sizeof(content),sizeof(char));
memcpy(m->data,content,sizeof(content)*sizeof(char));
free(lptr);
return m;
}
struct message * decode_int_message(char * msg)
{
char* ptr = seekString(msg,CRLF);
long data = asciiBytes2long(ptr);
struct message *m = calloc(1,sizeof(struct message));
m->m_type =int_msg;
m->data = malloc(sizeof(long));
memcpy(m->data,&data,sizeof(uint32_t));
free(ptr);
return m;
}
struct message * decode_ary_message(char * msg)
{
char *lptr = seekString(msg,CRLF);
long length = asciiBytes2long(lptr);
struct message * m = calloc(length,sizeof(struct message));
msg = msg+LENGTH_CRLF+(int)strlen(lptr);
int i=0;
for(;i<(int)length;i++)
{
if(msg[0] == INTEGER_MARKER)
{
m[i] = *decode_int_message(++msg);
msg = msg+LENGTH_CRLF+getNumLength(*(int*)(m[i].data));
}else if(msg[0] == STRING_MARKER)
{
m[i] = *decode_ary_message(++msg);
msg = msg+2*LENGTH_CRLF+strlen((char*)m[i].data)+getNumLength(m[1].capacity);
}
}
m[i].data = NULL;
free(lptr);
return m;
}