From e71372faea4af670215b087a69c2b7432181a852 Mon Sep 17 00:00:00 2001 From: Thomas Fitzsimmons Date: Wed, 8 May 2002 00:12:49 +0000 Subject: [PATCH] * libc/include/sys/stdio.h: New file. * libc/sys/linux/sys/stdio.h: New file. * libc/include/stdio.h: Add declarations for flockfile, ftrylockfile, and funlockfile. Include . * libc/stdio/clearerr.c: Add file locking. * libc/stdio/fclose.c: Likewise. * libc/stdio/feof.c: Likewise. * libc/stdio/ferror.c: Likewise. * libc/stdio/fflush.c: Likewise. * libc/stdio/fgetc.c: Likewise. * libc/stdio/fgetpos.c: Likewise. * libc/stdio/fgets.c: Likewise. * libc/stdio/fileno.c: Likewise. * libc/stdio/fputc.c: Likewise. * libc/stdio/fputs.c: Likewise. * libc/stdio/fread.c: Likewise. * libc/stdio/freopen.c: Likewise. * libc/stdio/fseek.c: Likewise. * libc/stdio/ftell.c: Likewise. * libc/stdio/fwrite.c: Likewise. * libc/stdio/getc.c: Likewise. * libc/stdio/putc.c: Likewise. * libc/stdio/setvbuf.c: Likewise. * libc/stdio/ungetc.c: Likewise. * libc/stdio/vfprintf.c: Likewise. --- newlib/ChangeLog | 28 ++++++++++++++++++++++++++++ newlib/libc/include/stdio.h | 5 +++++ newlib/libc/include/sys/stdio.h | 14 ++++++++++++++ newlib/libc/stdio/clearerr.c | 2 ++ newlib/libc/stdio/fclose.c | 8 +++++++- newlib/libc/stdio/feof.c | 6 +++++- newlib/libc/stdio/ferror.c | 6 +++++- newlib/libc/stdio/fflush.c | 13 ++++++++++--- newlib/libc/stdio/fgetc.c | 6 +++++- newlib/libc/stdio/fgetpos.c | 7 ++++++- newlib/libc/stdio/fgets.c | 14 ++++++++++++-- newlib/libc/stdio/fileno.c | 6 +++++- newlib/libc/stdio/fputc.c | 6 +++++- newlib/libc/stdio/fputs.c | 6 +++++- newlib/libc/stdio/fread.c | 14 ++++++++++++-- newlib/libc/stdio/freopen.c | 5 +++++ newlib/libc/stdio/fseek.c | 13 ++++++++++++- newlib/libc/stdio/ftell.c | 9 ++++++++- newlib/libc/stdio/fwrite.c | 7 ++++++- newlib/libc/stdio/getc.c | 7 +++++-- newlib/libc/stdio/putc.c | 7 +++++-- newlib/libc/stdio/setvbuf.c | 26 +++++++++++++++++--------- newlib/libc/stdio/ungetc.c | 20 +++++++++++++++++--- newlib/libc/stdio/vfprintf.c | 6 +++++- newlib/libc/sys/linux/sys/stdio.h | 16 ++++++++++++++++ 25 files changed, 222 insertions(+), 35 deletions(-) create mode 100644 newlib/libc/include/sys/stdio.h create mode 100644 newlib/libc/sys/linux/sys/stdio.h diff --git a/newlib/ChangeLog b/newlib/ChangeLog index dfc3087ba..2158397c8 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,31 @@ +2002-05-07 Thomas Fitzsimmons + + * libc/include/sys/stdio.h: New file. + * libc/sys/linux/sys/stdio.h: New file. + * libc/include/stdio.h: Add declarations for flockfile, + ftrylockfile, and funlockfile. Include . + * libc/stdio/clearerr.c: Add file locking. + * libc/stdio/fclose.c: Likewise. + * libc/stdio/feof.c: Likewise. + * libc/stdio/ferror.c: Likewise. + * libc/stdio/fflush.c: Likewise. + * libc/stdio/fgetc.c: Likewise. + * libc/stdio/fgetpos.c: Likewise. + * libc/stdio/fgets.c: Likewise. + * libc/stdio/fileno.c: Likewise. + * libc/stdio/fputc.c: Likewise. + * libc/stdio/fputs.c: Likewise. + * libc/stdio/fread.c: Likewise. + * libc/stdio/freopen.c: Likewise. + * libc/stdio/fseek.c: Likewise. + * libc/stdio/ftell.c: Likewise. + * libc/stdio/fwrite.c: Likewise. + * libc/stdio/getc.c: Likewise. + * libc/stdio/putc.c: Likewise. + * libc/stdio/setvbuf.c: Likewise. + * libc/stdio/ungetc.c: Likewise. + * libc/stdio/vfprintf.c: Likewise. + 2002-05-06 Jeff Johnston * libc/include/stdlib.h (a64l, l64a, _l64a_r): Added prototypes. diff --git a/newlib/libc/include/stdio.h b/newlib/libc/include/stdio.h index 9fb9451e4..767438fac 100644 --- a/newlib/libc/include/stdio.h +++ b/newlib/libc/include/stdio.h @@ -47,6 +47,8 @@ extern "C" { #include +#include + typedef _fpos_t fpos_t; typedef struct __sFILE FILE; @@ -220,6 +222,9 @@ FILE * _EXFUN(popen, (const char *, const char *)); int _EXFUN(putw, (int, FILE *)); void _EXFUN(setbuffer, (FILE *, char *, int)); int _EXFUN(setlinebuf, (FILE *)); +void _EXFUN(flockfile, (FILE *)); +int _EXFUN(ftrylockfile, (FILE *)); +void _EXFUN(funlockfile, (FILE *)); #endif /* diff --git a/newlib/libc/include/sys/stdio.h b/newlib/libc/include/sys/stdio.h new file mode 100644 index 000000000..8177322a0 --- /dev/null +++ b/newlib/libc/include/sys/stdio.h @@ -0,0 +1,14 @@ +#ifndef _NEWLIB_STDIO_H +#define _NEWLIB_STDIO_H + +/* Internal locking macros, used to protect stdio functions. In the + general case, expand to nothing. */ +#if !defined(_flockfile) +# define _flockfile(fp) +#endif + +#if !defined(_funlockfile) +# define _funlockfile(fp) +#endif + +#endif /* _NEWLIB_STDIO_H */ diff --git a/newlib/libc/stdio/clearerr.c b/newlib/libc/stdio/clearerr.c index 861d9a211..6a1b0af3c 100644 --- a/newlib/libc/stdio/clearerr.c +++ b/newlib/libc/stdio/clearerr.c @@ -59,5 +59,7 @@ _VOID _DEFUN (clearerr, (fp), FILE * fp) { + _flockfile(fp); __sclearerr (fp); + _funlockfile(fp); } diff --git a/newlib/libc/stdio/fclose.c b/newlib/libc/stdio/fclose.c index 3266d8a55..ad3d1e8e0 100644 --- a/newlib/libc/stdio/fclose.c +++ b/newlib/libc/stdio/fclose.c @@ -64,10 +64,15 @@ _DEFUN (fclose, (fp), if (fp == NULL) return (0); /* on NULL */ + _flockfile(fp); + CHECK_INIT (fp); if (fp->_flags == 0) /* not open! */ - return (0); + { + _funlockfile(fp); + return (0); + } r = fp->_flags & __SWR ? fflush (fp) : 0; if (fp->_close != NULL && (*fp->_close) (fp->_cookie) < 0) r = EOF; @@ -78,5 +83,6 @@ _DEFUN (fclose, (fp), if (HASLB (fp)) FREELB (fp); fp->_flags = 0; /* release this FILE for reuse */ + _funlockfile(fp); return (r); } diff --git a/newlib/libc/stdio/feof.c b/newlib/libc/stdio/feof.c index 55f151bd4..b7981bded 100644 --- a/newlib/libc/stdio/feof.c +++ b/newlib/libc/stdio/feof.c @@ -36,5 +36,9 @@ int _DEFUN (feof, (fp), FILE * fp) { - return __sfeof (fp); + int result; + _flockfile(fp); + result = __sfeof (fp); + _funlockfile(fp); + return result; } diff --git a/newlib/libc/stdio/ferror.c b/newlib/libc/stdio/ferror.c index 19fa78d14..ef17fd89d 100644 --- a/newlib/libc/stdio/ferror.c +++ b/newlib/libc/stdio/ferror.c @@ -63,5 +63,9 @@ int _DEFUN (ferror, (fp), FILE * fp) { - return __sferror (fp); + int result; + _flockfile(fp); + result = __sferror (fp); + _funlockfile(fp); + return result; } diff --git a/newlib/libc/stdio/fflush.c b/newlib/libc/stdio/fflush.c index 635e5a738..866bc83aa 100644 --- a/newlib/libc/stdio/fflush.c +++ b/newlib/libc/stdio/fflush.c @@ -69,11 +69,16 @@ _DEFUN (fflush, (fp), if (fp == NULL) return _fwalk (_REENT, fflush); + _flockfile(fp); + CHECK_INIT (fp); t = fp->_flags; if ((t & __SWR) == 0 || (p = fp->_bf._base) == NULL) - return 0; + { + _funlockfile(fp); + return 0; + } n = fp->_p - p; /* write this much */ /* @@ -89,11 +94,13 @@ _DEFUN (fflush, (fp), t = (*fp->_write) (fp->_cookie, (char *) p, n); if (t <= 0) { - fp->_flags |= __SERR; - return EOF; + fp->_flags |= __SERR; + _funlockfile(fp); + return EOF; } p += t; n -= t; } + _funlockfile(fp); return 0; } diff --git a/newlib/libc/stdio/fgetc.c b/newlib/libc/stdio/fgetc.c index 3d3d2c4ed..1160b67a7 100644 --- a/newlib/libc/stdio/fgetc.c +++ b/newlib/libc/stdio/fgetc.c @@ -42,5 +42,9 @@ int _DEFUN (fgetc, (fp), FILE * fp) { - return __sgetc (fp); + int result; + _flockfile(fp); + result = __sgetc (fp); + _funlockfile(fp); + return result; } diff --git a/newlib/libc/stdio/fgetpos.c b/newlib/libc/stdio/fgetpos.c index 214021a84..ed6f5cfd3 100644 --- a/newlib/libc/stdio/fgetpos.c +++ b/newlib/libc/stdio/fgetpos.c @@ -53,9 +53,14 @@ _DEFUN (fgetpos, (fp, pos), FILE * fp _AND fpos_t * pos) { + _flockfile(fp); *pos = ftell (fp); if (*pos != -1) - return 0; + { + _funlockfile(fp); + return 0; + } + _funlockfile(fp); return 1; } diff --git a/newlib/libc/stdio/fgets.c b/newlib/libc/stdio/fgets.c index d395d3344..46e190077 100644 --- a/newlib/libc/stdio/fgets.c +++ b/newlib/libc/stdio/fgets.c @@ -80,6 +80,7 @@ _DEFUN (fgets, (buf, n, fp), s = buf; + _flockfile(fp); #ifdef __SCLE if (fp->_flags & __SCLE) { @@ -92,8 +93,12 @@ _DEFUN (fgets, (buf, n, fp), break; } if (c == EOF && s == buf) - return NULL; + { + _funlockfile(fp); + return NULL; + } *s = 0; + _funlockfile(fp); return buf; } #endif @@ -110,7 +115,10 @@ _DEFUN (fgets, (buf, n, fp), { /* EOF: stop with partial or no line */ if (s == buf) - return 0; + { + _funlockfile(fp); + return 0; + } break; } len = fp->_r; @@ -133,6 +141,7 @@ _DEFUN (fgets, (buf, n, fp), fp->_p = t; (void) memcpy ((_PTR) s, (_PTR) p, len); s[len] = 0; + _funlockfile(fp); return (buf); } fp->_r -= len; @@ -142,5 +151,6 @@ _DEFUN (fgets, (buf, n, fp), } while ((n -= len) != 0); *s = 0; + _funlockfile(fp); return buf; } diff --git a/newlib/libc/stdio/fileno.c b/newlib/libc/stdio/fileno.c index d578c3ede..c9ecbb424 100644 --- a/newlib/libc/stdio/fileno.c +++ b/newlib/libc/stdio/fileno.c @@ -35,6 +35,10 @@ int _DEFUN (fileno, (f), FILE * f) { + int result; + _flockfile(f); CHECK_INIT (f); - return __sfileno (f); + result = __sfileno (f); + _funlockfile(f); + return result; } diff --git a/newlib/libc/stdio/fputc.c b/newlib/libc/stdio/fputc.c index 966a0dbf7..b945095e5 100644 --- a/newlib/libc/stdio/fputc.c +++ b/newlib/libc/stdio/fputc.c @@ -47,5 +47,9 @@ _DEFUN (fputc, (ch, file), int ch _AND FILE * file) { - return putc (ch, file); + int result; + _flockfile(file); + result = putc (ch, file); + _funlockfile(file); + return result; } diff --git a/newlib/libc/stdio/fputs.c b/newlib/libc/stdio/fputs.c index 62ce98fb7..78758ce93 100644 --- a/newlib/libc/stdio/fputs.c +++ b/newlib/libc/stdio/fputs.c @@ -60,6 +60,7 @@ _DEFUN (fputs, (s, fp), char _CONST * s _AND FILE * fp) { + int result; struct __suio uio; struct __siov iov; @@ -67,5 +68,8 @@ _DEFUN (fputs, (s, fp), iov.iov_len = uio.uio_resid = strlen (s); uio.uio_iov = &iov; uio.uio_iovcnt = 1; - return __sfvwrite (fp, &uio); + _flockfile(fp); + result = __sfvwrite (fp, &uio); + _funlockfile(fp); + return result; } diff --git a/newlib/libc/stdio/fread.c b/newlib/libc/stdio/fread.c index 38f791b6d..faca53735 100644 --- a/newlib/libc/stdio/fread.c +++ b/newlib/libc/stdio/fread.c @@ -122,6 +122,8 @@ _DEFUN (fread, (buf, size, count, fp), if ((resid = count * size) == 0) return 0; + + _flockfile(fp); if (fp->_r < 0) fp->_r = 0; total = resid; @@ -139,8 +141,12 @@ _DEFUN (fread, (buf, size, count, fp), /* no more input: return partial result */ #ifdef __SCLE if (fp->_flags & __SCLE) - return crlf(fp, buf, total-resid, 1) / size; + { + _funlockfile(fp); + return crlf(fp, buf, total-resid, 1) / size; + } #endif + _funlockfile(fp); return (total - resid) / size; } } @@ -149,7 +155,11 @@ _DEFUN (fread, (buf, size, count, fp), fp->_p += resid; #ifdef __SCLE if (fp->_flags & __SCLE) - return crlf(fp, buf, total, 0) / size; + { + _funlockfile(fp); + return crlf(fp, buf, total, 0) / size; + } #endif + _funlockfile(fp); return count; } diff --git a/newlib/libc/stdio/freopen.c b/newlib/libc/stdio/freopen.c index 63f583375..ea61f0463 100644 --- a/newlib/libc/stdio/freopen.c +++ b/newlib/libc/stdio/freopen.c @@ -76,12 +76,15 @@ _DEFUN (freopen, (file, mode, fp), int flags, oflags, e; struct _reent *ptr; + _flockfile(fp); + CHECK_INIT (fp); ptr = fp->_data; if ((flags = __sflags (ptr, mode, &oflags)) == 0) { (void) fclose (fp); + _funlockfile(fp); return NULL; } @@ -137,6 +140,7 @@ _DEFUN (freopen, (file, mode, fp), { /* did not get it after all */ fp->_flags = 0; /* set it free */ ptr->_errno = e; /* restore in case _close clobbered */ + _funlockfile(fp); return NULL; } @@ -153,5 +157,6 @@ _DEFUN (freopen, (file, mode, fp), fp->_flags |= __SCLE; #endif + _funlockfile(fp); return fp; } diff --git a/newlib/libc/stdio/fseek.c b/newlib/libc/stdio/fseek.c index 1b7298914..10c6c532e 100644 --- a/newlib/libc/stdio/fseek.c +++ b/newlib/libc/stdio/fseek.c @@ -96,6 +96,8 @@ fseek (fp, offset, whence) struct stat st; int havepos; + _flockfile(fp); + /* Make sure stdio is set up. */ CHECK_INIT (fp); @@ -115,6 +117,7 @@ fseek (fp, offset, whence) if ((seekfn = fp->_seek) == NULL) { ptr->_errno = ESPIPE; /* ??? */ + _funlockfile(fp); return EOF; } @@ -138,6 +141,7 @@ fseek (fp, offset, whence) { curoff = (*seekfn) (fp->_cookie, (fpos_t) 0, SEEK_CUR); if (curoff == -1L) + _funlockfile(fp); return EOF; } if (fp->_flags & __SRD) @@ -161,6 +165,7 @@ fseek (fp, offset, whence) default: ptr->_errno = EINVAL; + _funlockfile(fp); return (EOF); } @@ -262,6 +267,7 @@ fseek (fp, offset, whence) if (HASUB (fp)) FREEUB (fp); fp->_flags &= ~__SEOF; + _funlockfile(fp); return 0; } @@ -290,6 +296,7 @@ fseek (fp, offset, whence) fp->_p += n; fp->_r -= n; } + _funlockfile(fp); return 0; /* @@ -299,7 +306,10 @@ fseek (fp, offset, whence) dumb: if (fflush (fp) || (*seekfn) (fp->_cookie, offset, whence) == POS_ERR) - return EOF; + { + _funlockfile(fp); + return EOF; + } /* success: clear EOF indicator and discard ungetc() data */ if (HASUB (fp)) FREEUB (fp); @@ -307,5 +317,6 @@ dumb: fp->_r = 0; /* fp->_w = 0; *//* unnecessary (I think...) */ fp->_flags &= ~__SEOF; + _funlockfile(fp); return 0; } diff --git a/newlib/libc/stdio/ftell.c b/newlib/libc/stdio/ftell.c index 6a8061816..8066acc3b 100644 --- a/newlib/libc/stdio/ftell.c +++ b/newlib/libc/stdio/ftell.c @@ -80,6 +80,8 @@ _DEFUN (ftell, (fp), { fpos_t pos; + _flockfile(fp); + /* Ensure stdio is set up. */ CHECK_INIT (fp); @@ -87,6 +89,7 @@ _DEFUN (ftell, (fp), if (fp->_seek == NULL) { fp->_data->_errno = ESPIPE; + _funlockfile(fp); return -1L; } @@ -99,7 +102,10 @@ _DEFUN (ftell, (fp), { pos = (*fp->_seek) (fp->_cookie, (fpos_t) 0, SEEK_CUR); if (pos == -1L) - return pos; + { + _funlockfile(fp); + return pos; + } } if (fp->_flags & __SRD) { @@ -122,5 +128,6 @@ _DEFUN (ftell, (fp), pos += fp->_p - fp->_bf._base; } + _funlockfile(fp); return pos; } diff --git a/newlib/libc/stdio/fwrite.c b/newlib/libc/stdio/fwrite.c index 642fb274f..1c91632b8 100644 --- a/newlib/libc/stdio/fwrite.c +++ b/newlib/libc/stdio/fwrite.c @@ -98,7 +98,12 @@ _DEFUN (fwrite, (buf, size, count, fp), * generally slow and since this occurs whenever size==0. */ + _flockfile(fp); if (__sfvwrite (fp, &uio) == 0) - return count; + { + _funlockfile(fp); + return count; + } + _funlockfile(fp); return (n - uio.uio_resid) / size; } diff --git a/newlib/libc/stdio/getc.c b/newlib/libc/stdio/getc.c index 4b2509737..f7a2cac5a 100644 --- a/newlib/libc/stdio/getc.c +++ b/newlib/libc/stdio/getc.c @@ -74,7 +74,10 @@ int getc (fp) register FILE *fp; { + int result; + _flockfile(fp); /* CHECK_INIT is called (eventually) by __srefill. */ - - return __sgetc (fp); + result = __sgetc (fp); + _funlockfile(fp); + return result; } diff --git a/newlib/libc/stdio/putc.c b/newlib/libc/stdio/putc.c index 27a7a4280..7e53868ab 100644 --- a/newlib/libc/stdio/putc.c +++ b/newlib/libc/stdio/putc.c @@ -78,7 +78,10 @@ putc (c, fp) int c; register FILE *fp; { + int result; + _flockfile(fp); /* CHECK_INIT is (eventually) called by __swbuf. */ - - return __sputc (c, fp); + result = __sputc (c, fp); + _funlockfile(fp); + return result; } diff --git a/newlib/libc/stdio/setvbuf.c b/newlib/libc/stdio/setvbuf.c index 357ea5142..d44cdba5f 100644 --- a/newlib/libc/stdio/setvbuf.c +++ b/newlib/libc/stdio/setvbuf.c @@ -103,6 +103,9 @@ _DEFUN (setvbuf, (fp, buf, mode, size), register size_t size) { int ret = 0; + + _flockfile(fp); + CHECK_INIT (fp); /* @@ -111,7 +114,10 @@ _DEFUN (setvbuf, (fp, buf, mode, size), */ if ((mode != _IOFBF && mode != _IOLBF && mode != _IONBF) || (int)(_POINTER_INT) size < 0) - return (EOF); + { + _funlockfile(fp); + return (EOF); + } /* * Write current buffer, if any; drop read count, if any. @@ -145,15 +151,16 @@ _DEFUN (setvbuf, (fp, buf, mode, size), size = BUFSIZ; } if (buf == NULL) - { - /* Can't allocate it, let's try another approach */ + { + /* Can't allocate it, let's try another approach */ nbf: - fp->_flags |= __SNBF; - fp->_w = 0; - fp->_bf._base = fp->_p = fp->_nbuf; - fp->_bf._size = 1; - return (ret); - } + fp->_flags |= __SNBF; + fp->_w = 0; + fp->_bf._base = fp->_p = fp->_nbuf; + fp->_bf._size = 1; + _funlockfile(fp); + return (ret); + } fp->_flags |= __SMBF; } /* @@ -186,5 +193,6 @@ nbf: if (fp->_flags & __SWR) fp->_w = fp->_flags & (__SLBF | __SNBF) ? 0 : size; + _funlockfile(fp); return 0; } diff --git a/newlib/libc/stdio/ungetc.c b/newlib/libc/stdio/ungetc.c index 418717e68..9e54e5ebf 100644 --- a/newlib/libc/stdio/ungetc.c +++ b/newlib/libc/stdio/ungetc.c @@ -73,6 +73,8 @@ ungetc (c, fp) if (c == EOF) return (EOF); + _flockfile(fp); + /* Ensure stdio has been initialized. ??? Might be able to remove this as some other stdio routine should have already been called to get the char we are un-getting. */ @@ -89,11 +91,17 @@ ungetc (c, fp) * Otherwise, flush any current write stuff. */ if ((fp->_flags & __SRW) == 0) - return EOF; + { + _funlockfile(fp); + return EOF; + } if (fp->_flags & __SWR) { if (fflush (fp)) - return EOF; + { + _funlockfile(fp); + return EOF; + } fp->_flags &= ~__SWR; fp->_w = 0; fp->_lbfsize = 0; @@ -110,9 +118,13 @@ ungetc (c, fp) if (HASUB (fp)) { if (fp->_r >= fp->_ub._size && __submore (fp)) - return EOF; + { + _funlockfile(fp); + return EOF; + } *--fp->_p = c; fp->_r++; + _funlockfile(fp); return c; } @@ -126,6 +138,7 @@ ungetc (c, fp) { fp->_p--; fp->_r++; + _funlockfile(fp); return c; } @@ -141,5 +154,6 @@ ungetc (c, fp) fp->_ubuf[sizeof (fp->_ubuf) - 1] = c; fp->_p = &fp->_ubuf[sizeof (fp->_ubuf) - 1]; fp->_r = 1; + _funlockfile(fp); return c; } diff --git a/newlib/libc/stdio/vfprintf.c b/newlib/libc/stdio/vfprintf.c index 302b5aab9..27cc6d911 100644 --- a/newlib/libc/stdio/vfprintf.c +++ b/newlib/libc/stdio/vfprintf.c @@ -298,8 +298,12 @@ _DEFUN (VFPRINTF, (fp, fmt0, ap), _CONST char *fmt0 _AND va_list ap) { + int result; + _flockfile(fp); CHECK_INIT (fp); - return _VFPRINTF_R (fp->_data, fp, fmt0, ap); + result = _VFPRINTF_R (fp->_data, fp, fmt0, ap); + _funlockfile(fp); + return result; } int diff --git a/newlib/libc/sys/linux/sys/stdio.h b/newlib/libc/sys/linux/sys/stdio.h new file mode 100644 index 000000000..859406f3f --- /dev/null +++ b/newlib/libc/sys/linux/sys/stdio.h @@ -0,0 +1,16 @@ +#ifndef _NEWLIB_STDIO_H +#define _NEWLIB_STDIO_H + +/* Internal locking macros, used to protect stdio functions. In the + linux case, expand to flockfile, and funlockfile, both defined in + LinuxThreads. */ +#if !defined(__SINGLE_THREAD__) +# if !defined(_flockfile) +# define _flockfile(fp) /* FIXME: Uncomment when LinuxThreads is in: flockfile(fp) */ +# endif +# if !defined(_funlockfile) +# define _funlockfile(fp) /* FIXME: Uncomment when LinuxThreads is in: funlockfile(fp) */ +# endif +#endif /* __SINGLE_THREAD__ */ + +#endif /* _NEWLIB_STDIO_H */