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author | Kenny Root <kroot@google.com> | 2011-02-12 07:13:44 -0800 |
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committer | Kenny Root <kroot@google.com> | 2011-02-14 09:32:56 -0800 |
commit | f582340a6a48588aa50da17e1620e8f91b146941 (patch) | |
tree | d30c0ffb648b7a43ff469f89f05850f5008482ec /libc/stdio/sprintf.c | |
parent | 72f9a5c374bf559e9c69a62c1d95304f913ef6b2 (diff) | |
download | bionic-f582340a6a48588aa50da17e1620e8f91b146941.zip bionic-f582340a6a48588aa50da17e1620e8f91b146941.tar.gz bionic-f582340a6a48588aa50da17e1620e8f91b146941.tar.bz2 |
Fix the handle locking in stdio
Fix the handle locking in stdio to use flockfile/funlockfile
internally when and where required. Macros in <stdio.h> are updated
to automatically call the underlying functions when the process is
threaded to obtain the necessary locking. A private mutex is added
to protect __sglue, the internal list of FILE handles, and another
to protect the one-time initialization. Some routines in libc that
use getc() change to use getc_unlocked() as they're either protected
by their own lock or aren't thread-safe routines anyway.
Based on OpenBSD change by guenther@openbsd.org
http://www.mail-archive.com/source-changes@cvs.openbsd.org/msg01015.html
Bug: 3446659
Change-Id: Ie82116e358c541718d6709ec45ca6796be5a007b
Diffstat (limited to 'libc/stdio/sprintf.c')
-rw-r--r-- | libc/stdio/sprintf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libc/stdio/sprintf.c b/libc/stdio/sprintf.c index 67f924b..3cf7952 100644 --- a/libc/stdio/sprintf.c +++ b/libc/stdio/sprintf.c @@ -56,7 +56,7 @@ sprintf(char *str, const char *fmt, ...) f._bf._base = f._p = (unsigned char *)str; f._bf._size = f._w = INT_MAX; va_start(ap, fmt); - ret = vfprintf(&f, fmt, ap); + ret = __vfprintf(&f, fmt, ap); va_end(ap); *f._p = '\0'; return (ret); |