close.c

来自「eCos操作系统源码」· C语言 代码 · 共 56 行

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//==========================================================================////      lib/close.c////      close() system call////==========================================================================//####BSDCOPYRIGHTBEGIN####//// -------------------------------------------//// Portions of this software may have been derived from OpenBSD or other sources,// and are covered by the appropriate copyright disclaimers included herein.//// -------------------------------------------////####BSDCOPYRIGHTEND####//==========================================================================//#####DESCRIPTIONBEGIN####//// Author(s):    gthomas// Contributors: gthomas// Date:         2000-01-10// Purpose:      // Description:  //              ////####DESCRIPTIONEND####////==========================================================================#include <sys/param.h>#include <cyg/io/file.h>#include <sys/socket.h>#include <sys/socketvar.h>#include <sys/syscallargs.h>int close(int fd){    int error;    struct file *fp;    if (getfp(fd, &fp))        return (EBADF);    error = (*fp->f_ops->fo_close)(fp);    if (error) {        errno = error;        return -1;    } else {        ffree(fp);        return 0;    }}

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