quick-read: implement qr_open

- The file is opened actually only if it is not cached already in lookup.
    This adds responsibility for fops operating on fds to make sure that a
    valid fd actually opened on a file is used to complete the fop.

Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/xlators/performance/quick-read/src/quick-read.h b/xlators/performance/quick-read/src/quick-read.h
index 44db762437b..32bebac4866 100644
--- a/xlators/performance/quick-read/src/quick-read.h
+++ b/xlators/performance/quick-read/src/quick-read.h
@@ -43,6 +43,24 @@
 
 #define GLUSTERFS_CONTENT_KEY "glusterfs.content"
 
+struct qr_fd_ctx {
+        char              opened;
+        char              open_in_transit;
+        char             *path;
+        int               flags;
+        struct list_head  waiting_ops;
+        gf_lock_t         lock;
+};
+typedef struct qr_fd_ctx qr_fd_ctx_t;
+
+struct qr_local {
+        char         is_open;
+        fd_t        *fd;
+        int          open_flags;
+        call_stub_t *stub;
+};
+typedef struct qr_local qr_local_t;
+
 struct qr_file {
         dict_t           *xattr;
         struct stat       stbuf;