From: Florian Weimer <fweimer@redhat.com>
To: libc-alpha@sourceware.org
Subject: [PATCH v4 06/11] stdio-common: Add lock optimization to vfprintf and vfwprintf
Date: Thu, 18 Aug 2022 10:54:49 +0200 [thread overview]
Message-ID: <ebd7ff3c2772390a5293ed87fbcf699ceed84f54.1660812721.git.fweimer@redhat.com> (raw)
In-Reply-To: <cover.1660812721.git.fweimer@redhat.com>
After the rewrite and the implicit unbuffered streams handling, this
is very straightforward to add.
---
stdio-common/vfprintf-internal.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/stdio-common/vfprintf-internal.c b/stdio-common/vfprintf-internal.c
index 83a6aea510..23ada8d0ff 100644
--- a/stdio-common/vfprintf-internal.c
+++ b/stdio-common/vfprintf-internal.c
@@ -1452,6 +1452,14 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap, unsigned int mode_flags)
return EOF;
#endif
+ if (!_IO_need_lock (s))
+ {
+ struct Xprintf (buffer_to_file) wrap;
+ Xprintf (buffer_to_file_init) (&wrap, s);
+ Xprintf_buffer (&wrap.base, format, ap, mode_flags);
+ return Xprintf (buffer_to_file_done) (&wrap);
+ }
+
int done;
/* Lock stream. */
--
2.37.1
next prev parent reply other threads:[~2022-08-18 8:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-18 8:53 [PATCH v4 00/11] vfprintf refactor Florian Weimer
2022-08-18 8:53 ` [PATCH v4 01/11] locale: Implement struct grouping_iterator Florian Weimer
2022-08-18 8:54 ` [PATCH v4 02/11] stdio-common: Introduce buffers for implementing printf Florian Weimer
2022-08-18 8:54 ` [PATCH v4 03/11] stdio-common: Add __printf_function_invoke Florian Weimer
2022-08-18 8:54 ` [PATCH v4 04/11] stdio-common: Add __translated_number_width Florian Weimer
2022-08-18 8:54 ` [PATCH v4 05/11] stdio-common: Convert vfprintf and related functions to buffers Florian Weimer
2022-08-18 8:54 ` Florian Weimer [this message]
2022-08-18 8:54 ` [PATCH v4 07/11] libio: Convert __vsprintf_internal " Florian Weimer
2022-08-18 8:54 ` [PATCH v4 08/11] libio: Convert __vasprintf_internal " Florian Weimer
2022-08-18 8:55 ` [PATCH v4 09/11] libio: Convert __vdprintf_internal " Florian Weimer
2022-08-18 8:55 ` [PATCH v4 10/11] libio: Convert __obstack_vprintf_internal to buffers (bug 27124) Florian Weimer
2022-08-18 8:55 ` [PATCH v4 11/11] libio: Convert __vswprintf_internal to buffers (bug 27857) Florian Weimer
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