/* file.h 2.1 1/5/80 */ /* * 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 { char f_flag; char 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 */ } f_un; }; #ifdef KERNEL extern struct file file[]; /* the file table itself */ 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