From: Aki Tuomi <aki.tuomi@open-xchange.com>
Date: Tue, 30 Mar 2021 16:01:20 +0000 (+0300)
Subject: lib-compression: Add compression level range to handlers
X-Git-Tag: 2.3.15~113
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=250a7ea9dbb42f5b615d4fc504c24c31a7756271;p=thirdparty%2Fdovecot%2Fcore.git

lib-compression: Add compression level range to handlers
---

diff --git a/src/lib-compression/compression.h b/src/lib-compression/compression.h
index e56ffc0e37..60d58bfb37 100644
--- a/src/lib-compression/compression.h
+++ b/src/lib-compression/compression.h
@@ -18,6 +18,13 @@ struct compression_handler {
 	bool (*is_compressed)(struct istream *input);
 	struct istream *(*create_istream)(struct istream *input);
 	struct ostream *(*create_ostream)(struct ostream *output, int level);
+	/* returns minimum level */
+	int (*get_min_level)(void);
+	/* the default can be -1 (e.g. gz), so the return value of this has to
+	   be used as-is. */
+	int (*get_default_level)(void);
+	/* returns maximum level */
+	int (*get_max_level)(void);
 };
 
 extern const struct compression_handler compression_handlers[];