From: Florian Weimer <fweimer@redhat.com>
To: libc-alpha@sourceware.org
Subject: [PATCH v5 06/11] stdio-common: Add lock optimization to vfprintf and vfwprintf
Date: Mon, 12 Dec 2022 16:23:25 +0100 [thread overview]
Message-ID: <a407f0532feffbc31a3fa89754dc2313bd56eb89.1670858473.git.fweimer@redhat.com> (raw)
In-Reply-To: <cover.1670858473.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. */
--
2.38.1
next prev parent reply other threads:[~2022-12-12 15:23 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-12 15:22 [PATCH v5 00/11] vfprintf refactor Florian Weimer
2022-12-12 15:22 ` [PATCH v5 01/11] locale: Implement struct grouping_iterator Florian Weimer
2022-12-12 15:22 ` [PATCH v5 02/11] stdio-common: Introduce buffers for implementing printf Florian Weimer
2022-12-14 14:10 ` Adhemerval Zanella Netto
2022-12-16 17:51 ` Florian Weimer
2022-12-12 15:23 ` [PATCH v5 03/11] stdio-common: Add __printf_function_invoke Florian Weimer
2022-12-14 14:28 ` Adhemerval Zanella Netto
2022-12-12 15:23 ` [PATCH v5 04/11] stdio-common: Add __translated_number_width Florian Weimer
2022-12-14 14:38 ` Adhemerval Zanella Netto
2022-12-12 15:23 ` [PATCH v5 05/11] stdio-common: Convert vfprintf and related functions to buffers Florian Weimer
2022-12-14 20:54 ` Adhemerval Zanella Netto
2022-12-16 17:58 ` Florian Weimer
2022-12-12 15:23 ` Florian Weimer [this message]
2022-12-15 15:58 ` [PATCH v5 06/11] stdio-common: Add lock optimization to vfprintf and vfwprintf Adhemerval Zanella Netto
2022-12-12 15:23 ` [PATCH v5 07/11] libio: Convert __vsprintf_internal to buffers Florian Weimer
2022-12-15 18:16 ` Adhemerval Zanella Netto
2022-12-16 18:07 ` Florian Weimer
2022-12-12 15:23 ` [PATCH v5 08/11] libio: Convert __vasprintf_internal " Florian Weimer
2022-12-15 18:40 ` Adhemerval Zanella Netto
2022-12-16 18:22 ` Florian Weimer
2022-12-12 15:23 ` [PATCH v5 09/11] libio: Convert __vdprintf_internal " Florian Weimer
2022-12-15 19:11 ` Adhemerval Zanella Netto
2022-12-12 15:24 ` [PATCH v5 10/11] libio: Convert __obstack_vprintf_internal to buffers (bug 27124) Florian Weimer
2022-12-15 19:14 ` Adhemerval Zanella Netto
2022-12-16 18:25 ` Florian Weimer
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