summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorPaul Eggert <eggert@cs.ucla.edu>2018-03-09 00:42:45 (GMT)
committerMikhail Kashkarov <m.kashkarov@partner.samsung.com>2019-12-02 13:36:47 (GMT)
commit92ff96e389277bcf24bc8451a36c750a68304d89 (patch)
tree0649c2fe924e482093aef03fb0290ad86a12b4a0
parentdab36d30baab71e50ff3bcc6eb854ff09d8ca5fb (diff)
downloadm4-sandbox/mkashkarov/tizen_6.0_build.zip
m4-sandbox/mkashkarov/tizen_6.0_build.tar.gz
m4-sandbox/mkashkarov/tizen_6.0_build.tar.bz2
fflush: be more paranoid about libio.h changesandbox/mkashkarov/tizen_6.0_build
Suggested by Eli Zaretskii in: https://lists.gnu.org/r/emacs-devel/2018-03/msg00270.html * lib/fbufmode.c (fbufmode): * lib/fflush.c (clear_ungetc_buffer_preserving_position) (disable_seek_optimization, rpl_fflush): * lib/fpending.c (__fpending): * lib/fpurge.c (fpurge): * lib/freadable.c (freadable): * lib/freadahead.c (freadahead): * lib/freading.c (freading): * lib/freadptr.c (freadptr): * lib/freadseek.c (freadptrinc): * lib/fseeko.c (fseeko): * lib/fseterr.c (fseterr): * lib/fwritable.c (fwritable): * lib/fwriting.c (fwriting): Look at _IO_ftrylockfile as well as at _IO_EOF_SEEN. (cherry picked from gnulib commit 74d9d6a293d7462dea8f83e7fc5ac792e956a0ad)
-rw-r--r--ChangeLog21
-rw-r--r--lib/fflush.c9
-rw-r--r--lib/fpurge.c3
-rw-r--r--lib/freadahead.c3
-rw-r--r--lib/freading.c3
-rw-r--r--lib/fseeko.c6
6 files changed, 37 insertions, 8 deletions
diff --git a/ChangeLog b/ChangeLog
index 1e4fd91..72d846d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,24 @@
+2018-03-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ fflush: be more paranoid about libio.h change
+ Suggested by Eli Zaretskii in:
+ https://lists.gnu.org/r/emacs-devel/2018-03/msg00270.html
+ * lib/fbufmode.c (fbufmode):
+ * lib/fflush.c (clear_ungetc_buffer_preserving_position)
+ (disable_seek_optimization, rpl_fflush):
+ * lib/fpending.c (__fpending):
+ * lib/fpurge.c (fpurge):
+ * lib/freadable.c (freadable):
+ * lib/freadahead.c (freadahead):
+ * lib/freading.c (freading):
+ * lib/freadptr.c (freadptr):
+ * lib/freadseek.c (freadptrinc):
+ * lib/fseeko.c (fseeko):
+ * lib/fseterr.c (fseterr):
+ * lib/fwritable.c (fwritable):
+ * lib/fwriting.c (fwriting):
+ Look at _IO_ftrylockfile as well as at _IO_EOF_SEEN.
+
2018-03-05 Paul Eggert <eggert@cs.ucla.edu>
fflush: adjust to glibc 2.28 libio.h removal
diff --git a/lib/fflush.c b/lib/fflush.c
index 0c82feb..5547d54 100644
--- a/lib/fflush.c
+++ b/lib/fflush.c
@@ -33,7 +33,8 @@
#undef fflush
-#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
+/* GNU libc, BeOS, Haiku, Linux libc5 */
/* Clear the stream's ungetc buffer, preserving the value of ftello (fp). */
static void
@@ -71,7 +72,8 @@ clear_ungetc_buffer (FILE *fp)
#endif
-#if ! (defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */)
+#if ! (defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1)
+/* GNU libc, BeOS, Haiku, Linux libc5 */
# if (defined __sferror || defined __DragonFly__) && defined __SNPT /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
@@ -145,7 +147,8 @@ rpl_fflush (FILE *stream)
if (stream == NULL || ! freading (stream))
return fflush (stream);
-#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
+ /* GNU libc, BeOS, Haiku, Linux libc5 */
clear_ungetc_buffer_preserving_position (stream);
diff --git a/lib/fpurge.c b/lib/fpurge.c
index a60f0ae..b6c8fa6 100644
--- a/lib/fpurge.c
+++ b/lib/fpurge.c
@@ -61,7 +61,8 @@ fpurge (FILE *fp)
/* Most systems provide FILE as a struct and the necessary bitmask in
<stdio.h>, because they need it for implementing getc() and putc() as
fast macros. */
-# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+# if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
+ /* GNU libc, BeOS, Haiku, Linux libc5 */
fp->_IO_read_end = fp->_IO_read_ptr;
fp->_IO_write_ptr = fp->_IO_write_base;
/* Avoid memory leak when there is an active ungetc buffer. */
diff --git a/lib/freadahead.c b/lib/freadahead.c
index 1ee86b0..3073717 100644
--- a/lib/freadahead.c
+++ b/lib/freadahead.c
@@ -25,7 +25,8 @@
size_t
freadahead (FILE *fp)
{
-#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
+ /* GNU libc, BeOS, Haiku, Linux libc5 */
if (fp->_IO_write_ptr > fp->_IO_write_base)
return 0;
return (fp->_IO_read_end - fp->_IO_read_ptr)
diff --git a/lib/freading.c b/lib/freading.c
index 61dda1a..ed7ad94 100644
--- a/lib/freading.c
+++ b/lib/freading.c
@@ -31,7 +31,8 @@ freading (FILE *fp)
/* Most systems provide FILE as a struct and the necessary bitmask in
<stdio.h>, because they need it for implementing getc() and putc() as
fast macros. */
-# if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+# if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
+ /* GNU libc, BeOS, Haiku, Linux libc5 */
return ((fp->_flags & _IO_NO_WRITES) != 0
|| ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0
&& fp->_IO_read_base != NULL));
diff --git a/lib/fseeko.c b/lib/fseeko.c
index d01397e..93f1dfc 100644
--- a/lib/fseeko.c
+++ b/lib/fseeko.c
@@ -47,7 +47,8 @@ fseeko (FILE *fp, off_t offset, int whence)
#endif
/* These tests are based on fpurge.c. */
-#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
+ /* GNU libc, BeOS, Haiku, Linux libc5 */
if (fp->_IO_read_end == fp->_IO_read_ptr
&& fp->_IO_write_ptr == fp->_IO_write_base
&& fp->_IO_save_base == NULL)
@@ -121,7 +122,8 @@ fseeko (FILE *fp, off_t offset, int whence)
return -1;
}
-#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1
+ /* GNU libc, BeOS, Haiku, Linux libc5 */
fp->_flags &= ~_IO_EOF_SEEN;
fp->_offset = pos;
#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */