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authorUlrich Drepper <drepper@redhat.com>2000-09-01 09:09:56 +0000
committerUlrich Drepper <drepper@redhat.com>2000-09-01 09:09:56 +0000
commita8e58aa9ab2667045c1b21e5c1c5e21b075a782f (patch)
treeaea233a6ad4b6e0a075182d868cc3350c19279eb /libio
parenta91d3cd37bec7699597a45016f4cec985b9f3482 (diff)
downloadglibc-a8e58aa9ab2667045c1b21e5c1c5e21b075a782f.tar.gz
Update.
[_IO_MTSAFE_IO] (_IO_flockfile, _IO_funlockfile): Add macros which test _IO_USER_LOCK flag first.
Diffstat (limited to 'libio')
-rw-r--r--libio/libio.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libio/libio.h b/libio/libio.h
index e662f48918..770cb6d2b3 100644
--- a/libio/libio.h
+++ b/libio/libio.h
@@ -442,6 +442,10 @@ extern int _IO_ftrylockfile (_IO_FILE *) __THROW;
#ifdef _IO_MTSAFE_IO
# define _IO_peekc(_fp) _IO_peekc_locked (_fp)
+# define _IO_flockfile(_fp) \
+ if (((_fp)->_mode & _IO_USER_LOCK) == 0) _IO_flockfile (_fp)
+# define _IO_funlockfile(_fp) \
+ if (((_fp)->_mode & _IO_USER_LOCK) == 0) _IO_funlockfile (_fp)
#else
# define _IO_peekc(_fp) _IO_peekc_unlocked (_fp)
# define _IO_flockfile(_fp) /**/