include:

	* libiberty.h (fopen_unlocked, fdopen_unlocked, freopen_unlocked):
	Provide prototypes for new functions.

libiberty:
	* Makefile.in (CFILES): Add fopen_unlocked.c.
	(REQUIRED_OFILES): Add ./fopen_unlocked.o.
	Regenerate dependencies.

	* configure.ac: Check for stdio_ext.h and __fsetlocking.

	* fopen_unlocked.c: New file.

	* functions.texi, configure, config.in: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@97977 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 30 insertions, 0 deletions

diff --git a/libiberty/functions.texi b/libiberty/functions.texi
index 75f98243a02..47d40ec49f7 100644
--- a/libiberty/functions.texi
+++ b/libiberty/functions.texi
@@ -362,6 +362,16 @@ and inode numbers.
 
 @end deftypefn
 
+@c fopen_unlocked.c:32
+@deftypefn Extension FILE * fdopen_unlocked (int @var{fildes}, const char * @var{mode})
+
+Opens and returns a @code{FILE} pointer via @code{fdopen}.  If the
+operating system supports it, ensure that the stream is setup to avoid
+any multi-threaded locking.  Otherwise return the @code{FILE} pointer
+unchanged.
+
+@end deftypefn
+
 @c ffs.c:3
 @deftypefn Supplemental int ffs (int @var{valu})
 
@@ -421,6 +431,16 @@ Ignores case when performing the comparison.
 
 @end deftypefn
 
+@c fopen_unlocked.c:23
+@deftypefn Extension FILE * fopen_unlocked (const char *@var{path}, const char * @var{mode})
+
+Opens and returns a @code{FILE} pointer via @code{fopen}.  If the
+operating system supports it, ensure that the stream is setup to avoid
+any multi-threaded locking.  Otherwise return the @code{FILE} pointer
+unchanged.
+
+@end deftypefn
+
 @c argv.c:94
 @deftypefn Extension void freeargv (char **@var{vector})
 
@@ -431,6 +451,16 @@ itself.
 
 @end deftypefn
 
+@c fopen_unlocked.c:41
+@deftypefn Extension FILE * freopen_unlocked (const char * @var{path}, const char * @var{mode}, FILE * @var{stream})
+
+Opens and returns a @code{FILE} pointer via @code{freopen}.  If the
+operating system supports it, ensure that the stream is setup to avoid
+any multi-threaded locking.  Otherwise return the @code{FILE} pointer
+unchanged.
+
+@end deftypefn
+
 @c getruntime.c:82
 @deftypefn Replacement long get_run_time (void)