jehanne/sys/src/lib/stdio/iolib.h

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/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
/*
* pANS stdio -- definitions
* The following names are defined in the pANS:
* FILE fpos_t _IOFBF _IOLBF _IONBF
* BUFSIZ EOF FOPEN_MAX FILENAME_MAX L_tmpnam
* SEEK_CUR SEEK_END SEEK_SET TMP_MAX stderr
* stdin stdout remove rename tmpfile
* tmpnam fclose fflush fopen freopen
* setbuf setvbuf fprintf fscanf printf
* scanf sprintf sscanf vfprintf vprintf
* vsprintf fgetc fgets fputc fputs
* getc getchar gets putc putchar
* puts ungetc fread fwrite fgetpos
* fseek fsetpos ftell rewind clearerr
* feof ferror perror
*
* (But plan9 version omits remove and rename, because they are in libc)
*/
#include <u.h>
#include <lib9.h>
#undef END
#include "Stdio.h"
/*
* Flag bits
*/
#define BALLOC 1 /* did stdio malloc fd->buf? */
#define LINEBUF 2 /* is stream line buffered? */
#define STRING 4 /* output to string, instead of file */
#define APPEND 8 /* append mode output */
/*
* States
*/
#define CLOSED 0 /* file not open */
#define OPEN 1 /* file open, but no I/O buffer allocated yet */
#define RDWR 2 /* open, buffer allocated, ok to read or write */
#define RD 3 /* open, buffer allocated, ok to read but not write */
#define WR 4 /* open, buffer allocated, ok to write but not read */
#define ERR 5 /* open, but an uncleared error occurred */
#define END 6 /* open, but at eof */
int _IO_setvbuf(FILE *);
/* half hearted attempt to make multi threaded */
extern QLock _stdiolk;