From 082e680bd54e999f2bb4eb77141958938b1e9ee9 Mon Sep 17 00:00:00 2001 From: Manuel Novoa III Date: Wed, 11 Feb 2004 23:48:50 +0000 Subject: New stdio core. Should be more maintainable. Fixes a couple of bugs. Codepaths streamlined. Improved performance for nonthreaded apps when linked with a thread-enabled libc. Minor iconv bug and some locale/thread related startup issues fixed. These showed up in getting a gcj-compiled java helloworld app running. Removed some old extension functions... _stdio_fdout and _stdio_fsfopen. --- libc/stdio/ftello.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 libc/stdio/ftello.c (limited to 'libc/stdio/ftello.c') diff --git a/libc/stdio/ftello.c b/libc/stdio/ftello.c new file mode 100644 index 000000000..7092f34cf --- /dev/null +++ b/libc/stdio/ftello.c @@ -0,0 +1,61 @@ +/* Copyright (C) 2004 Manuel Novoa III + * + * GNU Library General Public License (LGPL) version 2 or later. + * + * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details. + */ + +#include "_stdio.h" + +#ifdef __DO_LARGEFILE +# ifndef __UCLIBC_HAS_LFS__ +# error large file support is not enabled! +# endif + +# define FTELL __ftello64 +# define OFFSET_TYPE __off64_t + +weak_alias(__ftello64,ftello64); + +#else + +# define FTELL ftell +# define OFFSET_TYPE long int + +weak_alias(ftell,ftello); + +#endif + +OFFSET_TYPE FTELL(register FILE *stream) +{ +#if defined(__UCLIBC_HAS_LFS__) && !defined(__DO_LARGEFILE) + + __offmax_t pos = __ftello64(stream); + + if ((sizeof(long) >= sizeof(__offmax_t)) || (((long) pos) == pos)) { + return ((long) pos); + } else { + __set_errno(EOVERFLOW); + return -1; + } + +#else + + __offmax_t pos = 0; + __STDIO_AUTO_THREADLOCK_VAR; + + __STDIO_AUTO_THREADLOCK(stream); + + __STDIO_STREAM_VALIDATE(stream); + + if ((__SEEK(stream, &pos, SEEK_CUR) < 0) + || (__stdio_adjust_position(stream, &pos) < 0)) { + pos = -1; + } + + __STDIO_AUTO_THREADUNLOCK(stream); + + return pos; + +#endif +} -- cgit v1.2.3