recv error codes

Recv is one of the most commonly used functions in socket programming. Sometimes different values are returned for the blocked Recv, and corresponding error codes for the error values correspond to different States, the following is a brief summary

Connect Timeout: Currently, the common method for setting SOCKET connect timeout on each platform is to use select (). The specific method is as follows: 1. Establish socket; 2. Set the socket to non-blocking mode; 3. Call connect (); 4. Use select (

In network programming, there are always a variety of areas to be aware of, almost every API to do exception handling, to determine the return value and error code to locate whether the need to exit.This paper summarizes the following error codes

As for my problem, the returned value of curl_errno () is 6. based on the above data query, we know that the reason is Couldn 'tresolvehost. thegivenremotehostwasnotresolved. this is the cause of "failed host resolution". now, I know how to solve

WSAAsyncSelect () Description: The notification set interface has a request event. # Include Int pascal far WSAAsyncSelect (SOCKET s, HWND hWnd, Unsigned int wMsg, long lEvent ); S identifies the descriptor of a set of interfaces that require

CurlcodeAlmost all ' easy ' interface functions return a curlcode error code. No matter what, using the curl_easy_setopt option Curlopt_errorbuffer was a good idea as it would give you a human readable Error string that could offer more details

Guide: 　　 5.3 Level 2 instruction details 　　 5.3.1 Force Multi-point coils (FC) 　　 　　 Request 　　 Byte 0:FC = 0F (16 binary) Byte 1-2: Reference value Byte 3-4: Number of bits (1-800) BYTE 5: Number of bytes (B = (bits + 7)/8) Byte

Connection Reset, Connection reset by peer, software caused connection abort: Socket write error Java.net. socketexception: Connection reset by peer: Socket write errorJava.net. socketexception: Connection ResetJava.net. socketexception: Software

Getting started with. Net 4.0 network development -- Fill buffer traps Note: This isBeginners in the Network Development FieldA series of articles, which can be used as an introduction to. Net 4.0 Object-Oriented Programming The expanded reading

7. UDP In the most common sense, the so-called UDP is a network protocol that does not matter when it is sent out. Therefore, the sending end of UDP programming only needs to send, and the network connection status does not need to be checked. The