fcntl -- file control LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <fcntl.h>; int fcntl(int fd, int cmd); int fcntl(int fd, int cmd, long arg); int fcntl(int fd, int cmd, struct flock *lock); [描述] Fcntl()针对(文件)描述符提供控制.参数fd 是被参数cmd操作(如下面...
fcntl -- file control LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <fcntl.h>; int fcntl(int fd, int cmd); int fcntl(int fd, int cmd, long arg); int fcntl(int fd, int cmd, struct flock *lock); [描述] Fcntl()针对(文件)描述符提供控制.参数fd 是被参数cmd操作(如下面...
文件控制函数 fcntl -- file controlLIBRARY Standard C Library (libc, -lc)SYNOPSIS #include ; int fcntl(int fd, int cmd, ...); [描述] Fcntl()针对(文件)描述符提供控制.参数fd 是被参数cmd操作(如下面的描述)的描述符. 针对cmd的值,fcntl能够接受第三个参数int argfcntl函数有5种功能: 1.复制一...
fcntl -- file control LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <fcntl.h>; int fcntl(int fd, int cmd); int fcntl(int fd, int cmd, long arg); int fcntl(int fd, int cmd, struct flock *lock); [描述] Fcntl()针对(文件)描述符提供控制.参数fd 是被参数cmd操作(如下面...
LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <fcntl.h>; int fcntl(int fd, int cmd); int fcntl(int fd, int cmd, long arg); int fcntl(int fd, int cmd, struct flock *lock); [描述] Fcntl()针对(文件)描述符提供控制.参数fd 是被参数cmd操作(如下面的描述)的描述符. ...
The GNU C Library The GNU C++ Library Last updated Changed forPUT11(information only; no code change). Changed forPUT04. Changed forPUT00. Programming considerations The following lists thez/TPFdeviations from POSIX for this function: Thez/TPF collection support file system (TFS)does not suppor...
notevenforMERCHANTABILITYorFITNESSFORAPARTICULARPURPOSE.CompiledbyGNUCCversion4.8.520150623(RedHat4.8.5-16).CompiledonaLinux3.10.0systemon2017-11-30.Availableextensions:TheCstubsadd-onversion2.1.2.cryptadd-onversion2.1byMichaelGladandothersGNULibidnbySimonJosefssonNativePOSIXThreadsLibrarybyUlrichDrepperetalBIND...
LIBRARY Standard C library (libc, -lc) SYNOPSIS #include <fcntl.h> int fcntl(int fd, int cmd, ... /* arg */ ); DESCRIPTION fcntl() performs one of the operations described below on the open file descriptor fd. The operation is determined by cmd. fcntl() can take an optional th...
LIBRARY Standard C library (libc, -lc) СИНТАКСИС #include <fcntl.h> int fcntl(int fd, int op, ... /* arg */ ); ОПИСАНИЕ fcntl() performs one of the operations described below on the open file descriptor fd. The operation is determined by op. fcntl() can...
cmd 可用的值与操作系统有关,在 fcntl 模块中可作为常量使用,名称与相关 C 语言头文件中的一样。参数 arg 可以是整数或 bytes 对象。若为整数值,则本函数的返回值是 C 语言 fcntl() 调用的整数返回值。若为字节串,则其代表一个二进制结构,比如由 struct.pack() 创建的数据。该二进制数据将被复制到一个...