fcntl windows

Function Description: Manipulate file characteristics According to the file description.#include #include int fcntl (int fd, int cmd);int fcntl (int fd, int cmd, long arg);int fcntl (int fd, int cmd, struct flock *lock);DescriptionFCNTL () provides

Transferred from: http://www.cnblogs.com/lonelycatcher/archive/2011/12/22/2297349.htmlFunction Description: Manipulate file characteristics According to the file description.#include #include int fcntl (int fd, int cmd);int fcntl (int fd, int cmd,

FcntlFunction Description: Manipulate the attributes of the file according to the file description.#include #include int fcntl (int fd, int cmd);int fcntl (int fd, int cmd, long arg);int fcntl (int fd, int cmd, struct flock

There are two types of fcntl File locks: Create locksAnd Mandatory lock The locks are defined as follows: every process that uses a lock file must check whether a lock exists. Of course, you must respect the existing locks. In general, the kernel

getsockopt () Briefly:Gets a set of interface options.#include int PASCAL FAR getsockopt (SOCKET s, int level, int optname,Char far* optval, int far* optlen);S: A descriptive word that identifies the socket interface.Level: The

Socket Programming in Windows When you are familiar with network programming in the UnixEnvironment, understanding Windows Network Programming is easy. This sectionDescribes the relationship between the windows network programming interface andThe

1.1 file descriptorThe file descriptor (fd) is equivalent to the file handle in windows programming. It enables a non-negative integer to reference an open file.In Unix, the file descriptor 0 (STDIN_FILENO) is the standard output, 1 (STDOUT_FILENO)

VII. Data ManagementMemory managementMalloc,free,realloc and windows are the same, both ANSI C.In fact, the application does not have direct access to physical memory, or it can obtain much larger memory space than actual memory through malloc,

This topic is circulated on the Internet in the same version, that is, the first item is the difference between header files, but the header files listed later are only # include (it is estimated that some people accidentally forgot to escape the

Note the following when porting socket-related programs from windows to Linux: 1) header fileWinsock. h/winsock2.h in WindowsSys/socket. h in LinuxError Handling: errno. h 2) initializationWsastartup and wsacleanup are required for Windows.Not