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#ifndef _STDIO_IMPL_H
#define _STDIO_IMPL_H
#include <stdio.h>
#include "syscall.h"
#include "libc.h"
#define UNGET 8
#if 1 // XXX EMSCRIPTEN
#define FFINALLOCK(f) 0
#define FLOCK(f) 0
#define FUNLOCK(f) 0
#else
#define FFINALLOCK(f) ((f)->lock>=0 ? __lockfile((f)) : 0)
#define FLOCK(f) int __need_unlock = ((f)->lock>=0 ? __lockfile((f)) : 0)
#define FUNLOCK(f) if (__need_unlock) __unlockfile((f)); else
#endif
#define F_PERM 1
#define F_NORD 4
#define F_NOWR 8
#define F_EOF 16
#define F_ERR 32
#define F_SVB 64
struct _IO_FILE {
unsigned flags;
unsigned char *rpos, *rend;
int (*close)(FILE *);
unsigned char *wend, *wpos;
unsigned char *mustbezero_1;
unsigned char *wbase;
size_t (*read)(FILE *, unsigned char *, size_t);
size_t (*write)(FILE *, const unsigned char *, size_t);
off_t (*seek)(FILE *, off_t, int);
unsigned char *buf;
size_t buf_size;
FILE *prev, *next;
int fd;
int pipe_pid;
long lockcount;
short dummy3;
signed char mode;
signed char lbf;
int lock;
int waiters;
void *cookie;
off_t off;
char *getln_buf;
void *mustbezero_2;
unsigned char *shend;
off_t shlim, shcnt;
};
size_t __stdio_read(FILE *, unsigned char *, size_t);
size_t __stdio_write(FILE *, const unsigned char *, size_t);
size_t __stdout_write(FILE *, const unsigned char *, size_t);
off_t __stdio_seek(FILE *, off_t, int);
int __stdio_close(FILE *);
size_t __string_read(FILE *, unsigned char *, size_t);
int __toread(FILE *);
int __towrite(FILE *);
#if defined(__PIC__) && (100*__GNUC__+__GNUC_MINOR__ >= 303)
__attribute__((visibility("protected")))
#endif
int __overflow(FILE *, int), __uflow(FILE *);
int __fseeko(FILE *, off_t, int);
int __fseeko_unlocked(FILE *, off_t, int);
off_t __ftello(FILE *);
off_t __ftello_unlocked(FILE *);
size_t __fwritex(const unsigned char *, size_t, FILE *);
int __putc_unlocked(int, FILE *);
FILE *__fdopen(int, const char *);
int __fmodeflags(const char *);
#define OFLLOCK() LOCK(libc.ofl_lock)
#define OFLUNLOCK() UNLOCK(libc.ofl_lock)
#define feof(f) ((f)->flags & F_EOF)
#define ferror(f) ((f)->flags & F_ERR)
#define getc_unlocked(f) \
( ((f)->rpos < (f)->rend) ? *(f)->rpos++ : __uflow((f)) )
#define putc_unlocked(c, f) ( ((c)!=(f)->lbf && (f)->wpos<(f)->wend) \
? *(f)->wpos++ = (c) : __overflow((f),(c)) )
/* Caller-allocated FILE * operations */
FILE *__fopen_rb_ca(const char *, FILE *, unsigned char *, size_t);
int __fclose_ca(FILE *);
#endif
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