From 968738f9b133c8bda7d5ced178fd92f4445d791c Mon Sep 17 00:00:00 2001 From: Yaakov Selkowitz Date: Thu, 18 Dec 2014 14:55:21 +0000 Subject: Implement BSD/GNU unlocked stdio extensions. * libc/include/stdio.h (clearerr_unlocked, feof_unlocked, ferror_unlocked, fflush_unlocked, fgetc_unlocked, fgets_unlocked, fileno_unlocked, fputc_unlocked, fputs_unlocked, fread_unlocked, fwrite_unlocked): Declare. * libc/include/wchar.h (fgetwc_unlocked, fgetws_unlocked, fputwc_unlocked, fputws_unlocked, getwc_unlocked, getwchar_unlocked, putwc_unlocked, putwchar_unlocked): Declare. * libc/stdio/Makefile.am (ELIX_4_SOURCES): Add clearerr_u.c, feof_u.c, ferror_u.c, fflush_u.c, fgetc_u.c, fgets_u.c, fgetwc_u.c, fgetws_u.c, fileno_u.c, fputc_u.c, fputs_u.c, fputwc_u.c, fputws_u.c, fread_u.c, fwrite_u.c, getwc_u.c, getwchar_u.c, putwc_u.c, putwchar_u.c. Add necessary dependencies. * libc/stdio/Makefile.in: Regenerate. * libc/stdio/clearerr.c: Document unlocked variant. * libc/stdio/clearerr_u.c: New file. * libc/stdio/feof.c: Document unlocked variant. * libc/stdio/feof_u.c: New file. * libc/stdio/ferror.c: Document unlocked variant. * libc/stdio/ferror_u.c: New file. * libc/stdio/fflush.c: Add __IMPL_UNLOCKED__ overrides. Document unlocked variants. * libc/stdio/fflush_u.c: New file. * libc/stdio/fgetc.c: Document unlocked variants. * libc/stdio/fgetc_u.c: New file. * libc/stdio/fgets.c: Add __IMPL_UNLOCKED__ overrides. Document unlocked variants. * libc/stdio/fgets_u.c: New file. * libc/stdio/fgetwc.c: Document unlocked variants. (__fgetwc): Make non-static. * libc/stdio/fgetwc_u.c: New file. * libc/stdio/fgetws.c: Add __IMPL_UNLOCKED__ overrides. Document unlocked variants. * libc/stdio/fgetws_u.c: New file. * libc/stdio/fileno.c: Document unlocked variant. * libc/stdio/fileno_u.c: New file. * libc/stdio/fputc.c: Document unlocked variants. * libc/stdio/fputc_u.c: New file. * libc/stdio/fputs.c: Add __IMPL_UNLOCKED__ overrides. Document unlocked variants. * libc/stdio/fputs_u.c: New file. * libc/stdio/fputwc.c: Document unlocked variants. (__fputwc): Make non-static. * libc/stdio/fputwc_u.c: New file. * libc/stdio/fputws.c: Add __IMPL_UNLOCKED__ overrides. Document unlocked variants. * libc/stdio/fputws_u.c: New file. * libc/stdio/fread.c: Add __IMPL_UNLOCKED__ overrides. Document unlocked variants. * libc/stdio/fread_u.c: New file. * libc/stdio/fwrite.c: Add __IMPL_UNLOCKED__ overrides. Document unlocked variants. * libc/stdio/fwrite_u.c: New file. * libc/stdio/getwc_u.c: New file. * libc/stdio/getwchar.c: Document unlocked variants. * libc/stdio/getwchar_u.c: New file. * libc/stdio/local.h: Define locking macros as empty ifdef __IMPL_UNLOCKED__. (__fgetwc, __fputwc): Declare. * libc/stdio/putwc_u.c: New file. * libc/stdio/putwchar.c: Document unlocked variants. * libc/stdio/putwchar_u.c: New file. --- newlib/libc/stdio/local.h | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) (limited to 'newlib/libc/stdio/local.h') diff --git a/newlib/libc/stdio/local.h b/newlib/libc/stdio/local.h index 434d3f85c..cf8e6a921 100644 --- a/newlib/libc/stdio/local.h +++ b/newlib/libc/stdio/local.h @@ -60,7 +60,16 @@ #define _STDIO_WITH_THREAD_CANCELLATION_SUPPORT #endif -#ifdef _STDIO_WITH_THREAD_CANCELLATION_SUPPORT +#if defined(__SINGLE_THREAD__) || defined(__IMPL_UNLOCKED__) + +# define _newlib_flockfile_start(_fp) +# define _newlib_flockfile_exit(_fp) +# define _newlib_flockfile_end(_fp) +# define _newlib_sfp_lock_start() +# define _newlib_sfp_lock_exit() +# define _newlib_sfp_lock_end() + +#elif defined(_STDIO_WITH_THREAD_CANCELLATION_SUPPORT) #include /* Start a stream oriented critical section: */ @@ -102,7 +111,7 @@ pthread_setcancelstate (__oldsfpcancel, &__oldsfpcancel); \ } -#elif !defined(__SINGLE_THREAD__) /* !_STDIO_WITH_THREAD_CANCELLATION_SUPPORT */ +#else /* !__SINGLE_THREAD__ && !__IMPL_UNLOCKED__ && !_STDIO_WITH_THREAD_CANCELLATION_SUPPORT */ # define _newlib_flockfile_start(_fp) \ { \ @@ -129,17 +138,10 @@ __sfp_lock_release (); \ } -#else /* __SINGLE_THREAD__ */ - -# define _newlib_flockfile_start(_fp) -# define _newlib_flockfile_exit(_fp) -# define _newlib_flockfile_end(_fp) -# define _newlib_sfp_lock_start() -# define _newlib_sfp_lock_exit() -# define _newlib_sfp_lock_end() - -#endif /* _STDIO_WITH_THREAD_CANCELLATION_SUPPORT */ +#endif /* __SINGLE_THREAD__ || __IMPL_UNLOCKED__ */ +extern wint_t _EXFUN(__fgetwc, (struct _reent *, FILE *)); +extern wint_t _EXFUN(__fputwc, (struct _reent *, wchar_t, FILE *)); extern u_char *_EXFUN(__sccl, (char *, u_char *fmt)); extern int _EXFUN(__svfscanf_r,(struct _reent *,FILE *, _CONST char *,va_list)); extern int _EXFUN(__ssvfscanf_r,(struct _reent *,FILE *, _CONST char *,va_list)); -- cgit v1.2.3