http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/pipe_fs_i.h

#ifndef _LINUX_PIPE_FS_I_H #define _LINUX_PIPE_FS_I_H #define PIPEFS_MAGIC 0x50495045 #define PIPE_BUFFERS (16) struct pipe_buffer { struct page *page; unsigned int offset, len; struct pipe_buf_operations *ops; }; struct pipe_buf_operations { int can_merge; void * (*map)(struct file *, struct pipe_inode_info *, struct pipe_buffer *); void (*unmap)(struct pipe_inode_info *, struct pipe_buffer *); void (*release)(struct pipe_inode_info *, struct pipe_buffer *); }; struct pipe_inode_info { wait_queue_head_t wait; unsigned int nrbufs, curbuf; struct pipe_buffer bufs[PIPE_BUFFERS]; struct page *tmp_page; unsigned int start; unsigned int readers; unsigned int writers; unsigned int waiting_writers; unsigned int r_counter; unsigned int w_counter; struct fasync_struct *fasync_readers; struct fasync_struct *fasync_writers; }; /* Differs from PIPE_BUF in that PIPE_SIZE is the length of the actual memory allocation, whereas PIPE_BUF makes atomicity guarantees. */ #define PIPE_SIZE PAGE_SIZE #define PIPE_MUTEX(inode) (&(inode).i_mutex) #define PIPE_WAIT(inode) (&(inode).i_pipe->wait) #define PIPE_READERS(inode) ((inode).i_pipe->readers) #define PIPE_WRITERS(inode) ((inode).i_pipe->writers) #define PIPE_WAITING_WRITERS(inode) ((inode).i_pipe->waiting_writers) #define PIPE_RCOUNTER(inode) ((inode).i_pipe->r_counter) #define PIPE_WCOUNTER(inode) ((inode).i_pipe->w_counter) #define PIPE_FASYNC_READERS(inode) (&((inode).i_pipe->fasync_readers)) #define PIPE_FASYNC_WRITERS(inode) (&((inode).i_pipe->fasync_writers)) /* Drop the inode semaphore and wait for a pipe event, atomically */ void pipe_wait(struct inode * inode); struct inode* pipe_new(struct inode* inode); void free_pipe_info(struct inode* inode); #endif