arch/um/include/os.h

/* 
 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
 * Licensed under the GPL
 */

#ifndef __OS_H__
#define __OS_H__

#include "asm/types.h"
#include "../os/include/file.h"

struct openflags {
	unsigned int r : 1;
	unsigned int w : 1;
	unsigned int s : 1;	/* O_SYNC */
	unsigned int c : 1;	/* O_CREAT */
	unsigned int t : 1;	/* O_TRUNC */
	unsigned int a : 1;	/* O_APPEND */
	unsigned int e : 1;	/* O_EXCL */
};

#define OPENFLAGS() ((struct openflags) { r : 0, w : 0, c : 0, s : 0 })

static inline struct openflags of_read(struct openflags flags){
	flags.r = 1; 
	return(flags);
}

static inline struct openflags of_write(struct openflags flags){
	flags.w = 1; 
	return(flags); 
}

static inline struct openflags of_rdwr(struct openflags flags){
	return(of_read(of_write(flags)));
}

static inline struct openflags of_set_rw(struct openflags flags, int r, int w){
	flags.r = r;
	flags.w = w;
	return(flags);
}

static inline struct openflags of_sync(struct openflags flags){ 
	flags.s = 1; 
	return(flags); 
}

static inline struct openflags of_create(struct openflags flags){ 
	flags.c = 1; 
	return(flags); 
}
 
static inline struct openflags of_trunc(struct openflags flags){ 
	flags.t = 1; 
	return(flags); 
}
 
static inline struct openflags of_append(struct openflags flags){ 
	flags.a = 1; 
	return(flags); 
}
 
static inline struct openflags of_excl(struct openflags flags){ 
	flags.e = 1; 
	return(flags); 
}
 
extern int os_seek_file(int fd, __u64 offset);
extern int os_open_file(char *file, struct openflags flags, int mode);
extern int os_file_size(char *file, long long *size_out);
extern int os_pipe(int *fd, int stream);
extern int os_set_fd_async(int fd, int owner);
extern int os_set_fd_block(int fd, int blocking);
extern int os_accept_connection(int fd);
extern void os_shutdown_socket(int fd);
extern void os_close_file(int fd);
extern int os_rcv_fd(int fd, int *helper_pid_out);
extern int create_unix_socket(char *file, int len);

extern unsigned long os_process_pc(int pid);
extern int os_process_parent(int pid);
extern void os_stop_process(int pid);
extern void os_kill_process(int pid);
extern void os_usr1_process(int pid);
extern int os_getpid(void);

#endif

/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * Emacs will notice this stuff at the end of the file and automatically
 * adjust the settings for this buffer only.  This must remain at the end
 * of the file.
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-file-style: "linux"
 * End:
 */