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-rw-r--r--libio/genops.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/libio/genops.c b/libio/genops.c
index 30bceb6274..85d42face4 100644
--- a/libio/genops.c
+++ b/libio/genops.c
@@ -31,6 +31,8 @@
#endif
#include <string.h>
+static _IO_lock_t list_all_lock = _IO_lock_initializer;
+
void
_IO_un_link (fp)
_IO_FILE *fp;
@@ -38,6 +40,7 @@ _IO_un_link (fp)
if (fp->_flags & _IO_LINKED)
{
_IO_FILE **f;
+ _IO_lock_lock (list_all_lock);
for (f = &_IO_list_all; *f != NULL; f = &(*f)->_chain)
{
if (*f == fp)
@@ -46,6 +49,7 @@ _IO_un_link (fp)
break;
}
}
+ _IO_lock_unlock (list_all_lock);
fp->_flags &= ~_IO_LINKED;
}
}
@@ -57,8 +61,10 @@ _IO_link_in (fp)
if ((fp->_flags & _IO_LINKED) == 0)
{
fp->_flags |= _IO_LINKED;
+ _IO_lock_lock (list_all_lock);
fp->_chain = _IO_list_all;
_IO_list_all = fp;
+ _IO_lock_unlock (list_all_lock);
}
}