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-rw-r--r--include/sqfs/error.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/sqfs/error.h b/include/sqfs/error.h
index 77e33ed..055e98f 100644
--- a/include/sqfs/error.h
+++ b/include/sqfs/error.h
@@ -133,6 +133,18 @@ typedef enum {
* @brief An invalid argument was passed to a library function.
*/
SQFS_ERROR_ARG_INVALID = -16,
+
+ /**
+ * @brief Library functions were called an a nonsensical order.
+ *
+ * Some libsquashfs functions operate on an object with an internal
+ * state. Depending on the state, calling a function might not make
+ * sense at all (e.g. calling foo_end before foo_begin). In that case,
+ * this error is returned, signifying to the caller that the sequence
+ * makes not sense, but the object itself is unchanged, no action was
+ * performed and the object can still be used.
+ */
+ SQFS_ERROR_SEQUENCE = -17,
} E_SQFS_ERROR;
#endif /* SQFS_ERROR_H */