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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:29:52 +0000
commitca67b09c015d4af3ae3cce12aa72e60941dbb8b5 (patch)
treeb7316d7b06c373e08dabb79a2c866c568e08f49e /debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h
parentAdding upstream version 2.06. (diff)
downloadgrub2-ca67b09c015d4af3ae3cce12aa72e60941dbb8b5.tar.xz
grub2-ca67b09c015d4af3ae3cce12aa72e60941dbb8b5.zip
Adding debian version 2.06-13+deb12u1.debian/2.06-13+deb12u1debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h')
-rw-r--r--debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h b/debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h
new file mode 100644
index 0000000..e56f1d3
--- /dev/null
+++ b/debian/grub-extras/disabled/gpxe/src/include/gpxe/refcnt.h
@@ -0,0 +1,46 @@
+#ifndef _GPXE_REFCNT_H
+#define _GPXE_REFCNT_H
+
+/** @file
+ *
+ * Reference counting
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/**
+ * A reference counter
+ *
+ * This data structure is designed to be embedded within a
+ * reference-counted object.
+ *
+ * Reference-counted objects are freed when their reference count
+ * drops below zero. This means that a freshly allocated-and-zeroed
+ * reference-counted object will be freed on the first call to
+ * ref_put().
+ */
+struct refcnt {
+ /** Current reference count
+ *
+ * When this count is decremented below zero, the free()
+ * method will be called.
+ */
+ int refcnt;
+ /** Free containing object
+ *
+ * This method is called when the reference count is
+ * decremented below zero.
+ *
+ * If this method is left NULL, the standard library free()
+ * function will be called. The upshot of this is that you
+ * may omit the free() method if the @c refcnt object is the
+ * first element of your reference-counted struct.
+ */
+ void ( * free ) ( struct refcnt *refcnt );
+};
+
+extern struct refcnt * ref_get ( struct refcnt *refcnt );
+extern void ref_put ( struct refcnt *refcnt );
+
+#endif /* _GPXE_REFCNT_H */