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-rw-r--r--src/shared/hibernate-util.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/shared/hibernate-util.h b/src/shared/hibernate-util.h
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--- /dev/null
+++ b/src/shared/hibernate-util.h
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+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <linux/fiemap.h>
+#include <sys/types.h>
+
+/* represents values for /sys/power/resume & /sys/power/resume_offset and the corresponding path */
+typedef struct HibernationDevice {
+ dev_t devno;
+ uint64_t offset; /* in memory pages */
+ char *path;
+} HibernationDevice;
+
+void hibernation_device_done(HibernationDevice *hibernation_device);
+
+int find_suitable_hibernation_device_full(HibernationDevice *ret_device, uint64_t *ret_size, uint64_t *ret_used);
+static inline int find_suitable_hibernation_device(HibernationDevice *ret) {
+ return find_suitable_hibernation_device_full(ASSERT_PTR(ret), NULL, NULL);
+}
+
+int hibernation_is_safe(void);
+
+int write_resume_config(dev_t devno, uint64_t offset, const char *device);
+
+/* Only for test-fiemap */
+int read_fiemap(int fd, struct fiemap **ret);