Update helper

gsock_helper.cpp

@@ -1,5 +1,32 @@
+/** General Socket Wrapper
+*   Created By Kiritow. (https://github.com/kiritow)
+*   Licensed under MIT
+*/
+
 #include "gsock_helper.h"
 
+#ifdef _WIN32
+/// Using Win8.1
+#define _WIN32_WINNT 0x0603
+
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#else
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <netdb.h>
+#include <errno.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <fcntl.h>
+#define closesocket close
+using BYTE = unsigned char;
+#define WSAGetLastError() errno
+#endif
+
 sock_helper::sock_helper(sock& s) :_s(s)
 {
 
@@ -84,4 +111,73 @@ int sock_helper::recvuntil(void* buff, int max_length,
 {
     int x;
     return recvuntil(buff, max_length, cond_fn, x);
+}
+
+int sock_helper::sendpack(const void* ptr, int datasz)
+{
+    long net_size = htonl(datasz);
+    int ret = sendall(&net_size, sizeof(net_size));
+    if (ret <= 0) return ret;
+    ret = sendall(ptr, datasz);
+    if (ret <= 0) return ret;
+    return datasz + sizeof(net_size);
+}
+
+int sock_helper::sendpack(const std::string& data)
+{
+    return sendpack(data.data(), data.size());
+}
+
+int sock_helper::recvpack(std::string& out_data)
+{
+    long net_size;
+    int ret = recvuntil(&net_size, sizeof(long), []() {return false; });
+    if (ret <= 0)
+    {
+        return ret;
+    }
+    std::string str;
+    char c;
+    long data_size = ntohl(net_size);
+    if (data_size <= 0)
+    {
+        return -2;
+    }
+    long done = 0;
+    while (done < data_size)
+    {
+        int ret = _s.recv(&c, 1);
+        if (ret <= 0)
+        {
+            return ret;
+        }
+        str.push_back(c);
+        done += ret;
+    }
+
+    out_data = str;
+    return done;
+}
+
+int sock_helper::recvline(std::string& out_data, const std::string& separator, bool keep_sep)
+{
+    out_data.clear();
+
+    char c;
+    int done = 0;
+    while (true)
+    {
+        int ret = _s.recv(&c, 1);
+        if (ret <= 0)
+        {
+            return ret;
+        }
+        out_data.push_back(c);
+        done += ret;
+        if (out_data.find(separator) != std::string::npos)
+        {
+            break;
+        }
+    }
+    return done;
 }

gsock_helper.h

@@ -8,6 +8,7 @@
 #pragma once
 #include "gsock.h"
 #include <functional>
+#include <string>
 
 class sock_helper
 {
@@ -21,6 +22,12 @@ public:
     int recvuntil(void* buff, int max_length, const std::function<bool()>& cond_fn, int& bytes_recv);
     int recvuntil(void* buff, int max_length, const std::function<bool(void*, int)>& cond_fn);
     int recvuntil(void* buff, int max_length, const std::function<bool(void*, int)>& cond_fn, int& bytes_recv);
+
+    int sendpack(const void* ptr, int datasz);
+    int sendpack(const std::string& data);
+    int recvpack(std::string& out_data);
+
+    int recvline(std::string& out_data, const std::string& separator="\r\n", bool keep_sep = false);
 private:
     sock & _s;
 };