diff options
author | Yaakov Selkowitz <yselkowi@redhat.com> | 2014-12-18 17:55:21 +0300 |
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committer | Yaakov Selkowitz <yselkowi@redhat.com> | 2014-12-18 17:55:21 +0300 |
commit | 968738f9b133c8bda7d5ced178fd92f4445d791c (patch) | |
tree | 667f72df8e0f4f52a48057450be0c1a4a5bb31b8 /newlib/libc/stdio/fputws.c | |
parent | 2a06c6dcc483361d5af4080e33825cb9d0138c82 (diff) |
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.
Diffstat (limited to 'newlib/libc/stdio/fputws.c')
-rw-r--r-- | newlib/libc/stdio/fputws.c | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/newlib/libc/stdio/fputws.c b/newlib/libc/stdio/fputws.c index 82945996f..bb2fa6dbe 100644 --- a/newlib/libc/stdio/fputws.c +++ b/newlib/libc/stdio/fputws.c @@ -26,46 +26,81 @@ /* FUNCTION -<<fputws>>---write a wide character string in a file or stream +<<fputws>>, <<fputws_unlocked>>---write a wide character string in a file or stream INDEX fputws INDEX + fputws_unlocked +INDEX _fputws_r +INDEX + _fputws_unlocked_r ANSI_SYNOPSIS #include <wchar.h> int fputws(const wchar_t *__restrict <[ws]>, FILE *__restrict <[fp]>); + #define _GNU_SOURCE + #include <wchar.h> + int fputws_unlocked(const wchar_t *__restrict <[ws]>, FILE *__restrict <[fp]>); + #include <wchar.h> int _fputws_r(struct _reent *<[ptr]>, const wchar_t *<[ws]>, FILE *<[fp]>); + #include <wchar.h> + int _fputws_unlocked_r(struct _reent *<[ptr]>, const wchar_t *<[ws]>, + FILE *<[fp]>); + TRAD_SYNOPSIS #include <wchar.h> int fputws(<[ws]>, <[fp]>) wchar_t *__restrict <[ws]>; FILE *__restrict <[fp]>; + #define _GNU_SOURCE + #include <wchar.h> + int fputws_unlocked(<[ws]>, <[fp]>) + wchar_t *__restrict <[ws]>; + FILE *__restrict <[fp]>; + #include <wchar.h> int _fputws_r(<[ptr]>, <[ws]>, <[fp]>) struct _reent *<[ptr]>; wchar_t *<[ws]>; FILE *<[fp]>; + #include <wchar.h> + int _fputws_unlocked_r(<[ptr]>, <[ws]>, <[fp]>) + struct _reent *<[ptr]>; + wchar_t *<[ws]>; + FILE *<[fp]>; + DESCRIPTION <<fputws>> writes the wide character string at <[ws]> (but without the trailing null) to the file or stream identified by <[fp]>. -<<_fputws_r>> is simply the reentrant version of <<fputws>> that takes -an additional reentrant struct pointer argument: <[ptr]>. +<<fputws_unlocked>> is a non-thread-safe version of <<fputws>>. +<<fputws_unlocked>> may only safely be used within a scope +protected by flockfile() (or ftrylockfile()) and funlockfile(). This +function may safely be used in a multi-threaded program if and only +if they are called while the invoking thread owns the (FILE *) +object, as is the case after a successful call to the flockfile() or +ftrylockfile() functions. If threads are disabled, then +<<fputws_unlocked>> is equivalent to <<fputws>>. + +<<_fputws_r>> and <<_fputws_unlocked_r>> are simply reentrant versions of the +above that take an additional reentrant struct pointer argument: <[ptr]>. RETURNS If successful, the result is a non-negative integer; otherwise, the result is <<-1>> to indicate an error. PORTABILITY -C99, POSIX.1-2001 +<<fputws>> is required by C99 and POSIX.1-2001. + +<<fputws_unlocked>> is a GNU extension. */ #include <_ansi.h> @@ -77,6 +112,11 @@ C99, POSIX.1-2001 #include "fvwrite.h" #include "local.h" +#ifdef __IMPL_UNLOCKED__ +#define _fputws_r _fputws_unlocked_r +#define fputws fputws_unlocked +#endif + int _DEFUN(_fputws_r, (ptr, ws, fp), struct _reent *ptr _AND |