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#pragma once
#include <glib.h>
#include "slot.h"
#define RAUC_SLOT_PREFIX "slot"
/**
* Load a single slot status from a file into a pre-allocated status structure.
* If a problem occurs this structure is left unmodified.
*
* @param filename file to load
* @param slotstatus pointer to the pre-allocated structure going to store the slot status
* @param error a GError, or NULL
*
* @return TRUE if the slot status was successfully loaded. FALSE if there were errors.
*/
gboolean r_slot_status_read(const gchar *filename, RaucSlotStatus *slotstatus, GError **error)
G_GNUC_WARN_UNUSED_RESULT;
/**
* Save slot status file.
*
* @param filename name of destination file
* @param ss the slot status to save
* @param error a GError, or NULL
*/
gboolean r_slot_status_write(const gchar *filename, RaucSlotStatus *ss, GError **error)
G_GNUC_WARN_UNUSED_RESULT;
/**
* Loads the status of all slots.
*
* Leaves all slots with an initialized status.
* For slots that cannot be loaded or if status file is not loadable at all,
* defaults will be applied for the respective slots.
*
* Note: Callable from context setup.
*
* @param filename Status file to load from
* @param slots Hash table of slots to set status for
*/
void r_slot_status_load_globally(const gchar *filename, GHashTable *slots);
/**
* Load slot status.
*
* Takes care to fill in slot status information into the designated component
* of the slot data structure. If the user configured a global status file in
* the system.conf they are read from this file. Otherwise mount the given slot,
* read the status information from its local status file and unmount the slot
* afterwards. If a problem occurs the stored slot status consists of default
* values. Do nothing if the status information have already been loaded before.
*
* @param dest_slot Slot to load status information for
*/
void r_slot_status_load(RaucSlot *dest_slot);
/**
* Save slot status.
*
* This persists the status information from the designated component of the
* given slot data structure. If the user configured a global status file in the
* system.conf they are written to this file. Otherwise mount the given slot,
* transfer the status information to the local status file and unmount the slot
* afterwards.
*
* @param dest_slot Slot to write status information for
* @param error return location for a GError, or NULL
*
* @return TRUE if slot is not mountable or saving status succeeded, FALSE otherwise
*/
gboolean r_slot_status_save(RaucSlot *dest_slot, GError **error)
G_GNUC_WARN_UNUSED_RESULT;
typedef struct {
gchar *boot_id;
} RSystemStatus;
/**
* Load system status from central status file.
*
* Note that filename and status are passed explicitly here since the method is
* designed to be called during context setup where we cannot access context,
* yet.
*
* @param filename File name to load status from
* @param status RSystemStatus to update from file
* @param[out] error Return location for a GError, or NULL
*
* @return
*/
gboolean r_system_status_load(const gchar *filename, RSystemStatus *status, GError **error)
G_GNUC_WARN_UNUSED_RESULT;
/**
* Save system status to central status file.
*
* @param[out] error Return location for a GError, or NULL
*/
gboolean r_system_status_save(GError **error)
G_GNUC_WARN_UNUSED_RESULT;
/**
* Free system status.
*
* @param status RSystemStatus to free
*/
void r_system_status_free(RSystemStatus *status);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(RSystemStatus, r_system_status_free);
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