From: Timo Sirainen <tss@iki.fi>
Date: Sat, 5 Oct 2013 10:29:26 +0000 (+0300)
Subject: lib-fs: Added FS_OPEN_FLAG_ASYNC_NOQUEUE
X-Git-Tag: 2.2.7~94
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=60fe2f162e61eae1c2821bf9705c7ff7987c8ade;p=thirdparty%2Fdovecot%2Fcore.git

lib-fs: Added FS_OPEN_FLAG_ASYNC_NOQUEUE
---

diff --git a/src/lib-fs/fs-api.c b/src/lib-fs/fs-api.c
index 899d1ed172..83a7a13bac 100644
--- a/src/lib-fs/fs-api.c
+++ b/src/lib-fs/fs-api.c
@@ -159,6 +159,8 @@ struct fs_file *fs_file_init(struct fs *fs, const char *path, int mode_flags)
 	struct fs_file *file;
 
 	i_assert(path != NULL);
+	i_assert((mode_flags & FS_OPEN_FLAG_ASYNC_NOQUEUE) == 0 ||
+		 (mode_flags & FS_OPEN_FLAG_ASYNC) != 0);
 
 	T_BEGIN {
 		file = fs->v.file_init(fs, path, mode_flags & FS_OPEN_MODE_MASK,
diff --git a/src/lib-fs/fs-api.h b/src/lib-fs/fs-api.h
index e87b847493..8e166a3e75 100644
--- a/src/lib-fs/fs-api.h
+++ b/src/lib-fs/fs-api.h
@@ -54,7 +54,12 @@ enum fs_open_flags {
 	   finished and fs_read_stream() returns a nonblocking stream. */
 	FS_OPEN_FLAG_ASYNC		= 0x20,
 	/* fs_read_stream() must return a seekable input stream */
-	FS_OPEN_FLAG_SEEKABLE		= 0x40
+	FS_OPEN_FLAG_SEEKABLE		= 0x40,
+	/* Backend should handle this file's operations immediately without
+	   any additional command queueing. The caller is assumed to be the one
+	   doing any rate limiting if needed. This flag can only be used with
+	   ASYNC flag, synchronous requests are never queued. */
+	FS_OPEN_FLAG_ASYNC_NOQUEUE	= 0x80
 };
 
 enum fs_iter_flags {