Question

vxworks中如何创建一个文件，有没有例子

Answer 1

用普通的文件open（）函数就可以了.#include <ioLib.h>open( )NAMEopen( ) - open a fileSYNOPSISint open ( const char * name, /* name of the file to open */ int flags, /* O_RDONLY, O_WRONLY, O_RDWR, or O_CREAT */ int mode /* mode of file to create (UNIX chmod style) */ )DESCRIPTIONThis routine opens a file for reading, writing, or updating, and returns a file descriptor for that file. The arguments to open( ) are the filename and the type of access: O_RDONLY (0) (or READ) - open for reading only. O_WRONLY (1) (or WRITE) - open for writing only. O_RDWR (2) (or UPDATE) - open for reading and writing. O_CREAT (0x0200) - create a file. In general, open( ) can only open pre-existing devices and files. However, for NFS network devices only, files can also be created with open( ) by performing a logical OR operation with O_CREAT and the flags argument. In this case, the file is created with a UNIX chmod-style file mode, as indicated with mode. For example: fd = open ("/usr/myFile", O_CREAT | O_RDWR, 0644);Only the NFS driver uses the mode argument. NOTEFor more information about situations when there are no file descriptors available, see the manual entry for iosInit( ). RETURNSA file descriptor number, or ERROR if a file name is not specified, the device does not exist, no file descriptors are available, or the driver returns ERROR. ERRNOELOOP SEE ALSOioLib, creat( ) VARARGS2 其中creat和open效果一样，他们最终调用同一个函数，最终文件保存在你设置里放vxworks的位置，比如我的就放在D:\目录下了，试试看吧