/* file.h 4.7 81/05/12 */ /* * One file structure is allocated * for each open/creat/pipe call. * Main use is to hold the read/write * pointer associated with each open * file. */ struct file { short f_flag; short f_count; /* reference count */ struct inode *f_inode; /* pointer to inode structure */ union { off_t f_offset; /* read/write character pointer */ struct chan *f_chan; /* mpx channel pointer */ #ifdef BBNNET struct ucb *f_ucb; /* net connection block pointer */ #endif BBNNET } f_un; }; #ifdef KERNEL struct file *file, *fileNFILE; /* the file table itself */ int nfile; struct file *getf(); struct file *falloc(); #endif /* flags */ #define FREAD 01 #define FWRITE 02 #define FPIPE 04 #define FMPX 010 #define FMPY 020 #define FMP 030 #define FNET 0100 /* this is a network entry */