From: Florian Weimer <fweimer@redhat.com>
To: libc-alpha@sourceware.org
Subject: [PATCH 21/26] stdio-common: Add lock optimization to vfprintf and vfwprintf
Date: Thu, 17 Mar 2022 20:31:37 +0100 [thread overview]
Message-ID: <b33b5c15e7c04c0766b6d5f969d225b3e3ce3048.1647544751.git.fweimer@redhat.com> (raw)
In-Reply-To: <cover.1647544751.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. */
--
2.35.1
next prev parent reply other threads:[~2022-03-17 19:31 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-17 19:28 [PATCH 00/26] vfprintf rework to remove vtables Florian Weimer
2022-03-17 19:28 ` [PATCH 01/26] libio: Convert tst_swprintf to the test framework Florian Weimer
2022-03-18 17:40 ` Adhemerval Zanella
2022-03-17 19:28 ` [PATCH 02/26] libio: Flush-only _IO_str_overflow must not return EOF (bug 28949) Florian Weimer
2022-03-18 18:11 ` Adhemerval Zanella
2022-03-17 19:28 ` [PATCH 03/26] stdio-common: Add wide stream coverage to tst-vfprintf-user-type Florian Weimer
2022-03-18 18:30 ` Adhemerval Zanella
2022-03-18 19:19 ` Florian Weimer
2022-03-17 19:28 ` [PATCH 04/26] stdio-common: Add tst-printf-width-i18n to cover numeric field width Florian Weimer
2022-05-20 13:22 ` Adhemerval Zanella
2022-05-20 13:33 ` Adhemerval Zanella
2022-05-23 6:39 ` Florian Weimer
2022-03-17 19:28 ` [PATCH 05/26] vfprintf: Move argument processing into vfprintf-process-arg.c Florian Weimer
2022-05-20 13:28 ` Adhemerval Zanella
2022-03-17 19:28 ` [PATCH 06/26] vfprintf: Consolidate some multibyte/wide character processing Florian Weimer
2022-05-20 14:16 ` Adhemerval Zanella
2022-03-17 19:29 ` [PATCH 07/26] __printf_fphex always uses LC_NUMERIC Florian Weimer
2022-05-20 14:21 ` Adhemerval Zanella
2022-05-23 6:55 ` Florian Weimer
2022-03-17 19:29 ` [PATCH 08/26] stdio-common: Add tst-memstream-string for open_memstream overflow Florian Weimer
2022-05-20 17:44 ` Adhemerval Zanella
2022-05-23 7:03 ` Florian Weimer
2022-03-17 19:29 ` [PATCH 09/26] stdio-common: Add printf specifier registry to <printf.h> Florian Weimer
2022-05-20 17:49 ` Adhemerval Zanella
2022-03-17 19:30 ` [PATCH 10/26] stdio-common: Move union printf_arg int <printf.h> Florian Weimer
2022-05-20 17:51 ` Adhemerval Zanella
2022-03-17 19:30 ` [PATCH 11/26] stdio-common: Simplify printf_unknown interface in vfprintf-internal.c Florian Weimer
2022-05-20 18:07 ` Adhemerval Zanella
2022-03-17 19:30 ` [PATCH 12/26] locale: Call _nl_unload_locale from _nl_archive_subfreeres Florian Weimer
2022-05-20 18:09 ` Adhemerval Zanella
2022-05-23 7:14 ` Florian Weimer
2022-03-17 19:30 ` [PATCH 13/26] locale: Remove cleanup function pointer from struct __localedata Florian Weimer
2022-05-20 18:16 ` Adhemerval Zanella
2022-03-17 19:30 ` [PATCH 14/26] locale: Remove private union from struct __locale_data Florian Weimer
2022-05-20 18:22 ` Adhemerval Zanella
2022-03-17 19:30 ` [PATCH 15/26] locale: Add more cached data to LC_CTYPE Florian Weimer
2022-05-20 18:29 ` Adhemerval Zanella
2022-05-23 7:20 ` Florian Weimer
2022-03-17 19:31 ` [PATCH 16/26] locale: Implement struct grouping_iterator Florian Weimer
2022-03-17 19:31 ` [PATCH 17/26] stdio-common: Introduce buffers for implementing printf Florian Weimer
2022-03-17 19:31 ` [PATCH 18/26] stdio-common: Add __printf_function_invoke Florian Weimer
2022-03-17 19:31 ` [PATCH 19/26] stdio-common: Add __translated_number_width Florian Weimer
2022-03-17 19:31 ` [PATCH 20/26] stdio-common: Convert vfprintf and related functions to buffers Florian Weimer
2022-03-17 19:31 ` Florian Weimer [this message]
2022-03-17 19:31 ` [PATCH 22/26] libio: Convert __vsprintf_internal " Florian Weimer
2022-03-17 19:31 ` [PATCH 23/26] libio: Convert __vasprintf_internal " Florian Weimer
2022-03-17 19:31 ` [PATCH 24/26] libio: Convert __vdprintf_internal " Florian Weimer
2022-03-17 19:32 ` [PATCH 25/26] libio: Convert __obstack_vprintf_internal to buffers (bug 27124) Florian Weimer
2022-03-17 19:32 ` [PATCH 26/26] libio: Convert __vswprintf_internal to buffers (bug 27857) Florian Weimer
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