diff options
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 |