libglusterfs: Implement cluster-syncop

This patch implements syncop equivalent for cluster of xlators. The xlators on
which the fop needs to be performed is taken in input arguments to the
functions and the responses are gathered and provided as the output.

This idea is taken from afr-v2 self-heal implementation by Avati.

Change-Id: I2b568f4340cf921a65054b8ab0df7edc4478b5ca
BUG: 1213358
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/10240
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 277 insertions, 0 deletions

diff --git a/libglusterfs/src/defaults.h b/libglusterfs/src/defaults.h
index e29d62edfe1..a4ec7625409 100644
--- a/libglusterfs/src/defaults.h
+++ b/libglusterfs/src/defaults.h
@@ -22,6 +22,33 @@
 
 #include "xlator.h"
 
+typedef struct {
+        int op_ret;
+        int op_errno;
+        inode_t *inode;
+        struct iatt stat;
+        struct iatt prestat;
+        struct iatt poststat;
+        struct iatt preparent;   /* @preoldparent in rename_cbk */
+        struct iatt postparent;  /* @postoldparent in rename_cbk */
+        struct iatt preparent2;  /* @prenewparent in rename_cbk */
+        struct iatt postparent2; /* @postnewparent in rename_cbk */
+        const char *buf;
+        struct iovec *vector;
+        int count;
+        struct iobref *iobref;
+        fd_t *fd;
+        struct statvfs statvfs;
+        dict_t *xattr;
+        struct gf_flock lock;
+        uint32_t weak_checksum;
+        uint8_t *strong_checksum;
+        dict_t *xdata;
+        gf_dirent_t entries;
+        int valid; /* If the response is valid or not. For call-stub it is
+                      always valid irrespective of this */
+} default_args_cbk_t;
+
 int32_t default_notify (xlator_t *this,
                         int32_t event,
                         void *data,
@@ -1138,4 +1165,254 @@ default_getspec_failure_cbk (call_frame_t *frame, int32_t op_errno);
 int32_t
 default_mem_acct_init (xlator_t *this);
 
+int
+args_lookup_cbk_store (default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno,
+                     inode_t *inode, struct iatt *buf,
+                     dict_t *xdata, struct iatt *postparent);
+
+
+int
+args_stat_cbk_store (default_args_cbk_t *args,
+                   int32_t op_ret, int32_t op_errno,
+                   struct iatt *buf, dict_t *xdata);
+
+int
+args_fstat_cbk_store (default_args_cbk_t *args,
+                    int32_t op_ret, int32_t op_errno,
+                    struct iatt *buf, dict_t *xdata);
+
+int
+args_truncate_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+                       struct iatt *postbuf, dict_t *xdata);
+
+
+int
+args_ftruncate_cbk_store (default_args_cbk_t *args,
+                        int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+                        struct iatt *postbuf, dict_t *xdata);
+
+
+int
+args_access_cbk_store (default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+
+int
+args_readlink_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno,
+                       const char *path, struct iatt *stbuf, dict_t *xdata);
+
+int
+args_mknod_cbk_store (default_args_cbk_t *args, int32_t op_ret,
+                    int32_t op_errno, inode_t *inode, struct iatt *buf,
+                    struct iatt *preparent, struct iatt *postparent,
+                    dict_t *xdata);
+
+int
+args_mkdir_cbk_store (default_args_cbk_t *args,
+                    int32_t op_ret, int32_t op_errno, inode_t *inode,
+                    struct iatt *buf, struct iatt *preparent,
+                    struct iatt *postparent, dict_t *xdata);
+
+int
+args_unlink_cbk_store (default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno,
+                     struct iatt *preparent, struct iatt *postparent,
+                     dict_t *xdata);
+
+int
+args_rmdir_cbk_store (default_args_cbk_t *args,
+                    int32_t op_ret, int32_t op_errno,
+                    struct iatt *preparent, struct iatt *postparent,
+                    dict_t *xdata);
+
+int
+args_symlink_cbk_store (default_args_cbk_t *args,
+                      int32_t op_ret, int32_t op_errno,
+                      inode_t *inode, struct iatt *buf,
+                      struct iatt *preparent, struct iatt *postparent,
+                      dict_t *xdata);
+
+
+int
+args_rename_cbk_store (default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno, struct iatt *buf,
+                     struct iatt *preoldparent, struct iatt *postoldparent,
+                     struct iatt *prenewparent, struct iatt *postnewparent,
+                     dict_t *xdata);
+
+int
+args_link_cbk_store (default_args_cbk_t *args,
+                   int32_t op_ret, int32_t op_errno,
+                   inode_t *inode, struct iatt *buf,
+                   struct iatt *preparent, struct iatt *postparent,
+                   dict_t *xdata);
+
+int
+args_create_cbk_store (default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno,
+                     fd_t *fd, inode_t *inode, struct iatt *buf,
+                     struct iatt *preparent, struct iatt *postparent,
+                     dict_t *xdata);
+
+int
+args_open_cbk_store (default_args_cbk_t *args,
+                   int32_t op_ret, int32_t op_errno,
+                   fd_t *fd, dict_t *xdata);
+
+int
+args_readv_cbk_store (default_args_cbk_t *args,
+                    int32_t op_ret, int32_t op_errno, struct iovec *vector,
+                    int32_t count, struct iatt *stbuf,
+                    struct iobref *iobref, dict_t *xdata);
+
+int
+args_writev_cbk_store (default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno,
+                     struct iatt *prebuf, struct iatt *postbuf, dict_t *xdata);
+
+
+int
+args_flush_cbk_store (default_args_cbk_t *args,
+                    int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+
+int
+args_fsync_cbk_store (default_args_cbk_t *args,
+                    int32_t op_ret, int32_t op_errno,
+                    struct iatt *prebuf, struct iatt *postbuf, dict_t *xdata);
+
+int
+args_opendir_cbk_store (default_args_cbk_t *args,
+                      int32_t op_ret, int32_t op_errno,
+                      fd_t *fd, dict_t *xdata);
+
+int
+args_fsyncdir_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+int
+args_statfs_cbk_store (default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno,
+                     struct statvfs *buf, dict_t *xdata);
+
+int
+args_setxattr_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret,
+                       int32_t op_errno, dict_t *xdata);
+
+int
+args_getxattr_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno,
+                       dict_t *dict, dict_t *xdata);
+
+int
+args_fsetxattr_cbk_store (default_args_cbk_t *args,
+                        int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+int
+args_fgetxattr_cbk_store (default_args_cbk_t *args,
+                        int32_t op_ret, int32_t op_errno,
+                        dict_t *dict, dict_t *xdata);
+
+int
+args_removexattr_cbk_store (default_args_cbk_t *args,
+                          int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+int
+args_fremovexattr_cbk_store (default_args_cbk_t *args,
+                           int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+int
+args_lk_cbk_store (default_args_cbk_t *args,
+                 int32_t op_ret, int32_t op_errno,
+                 struct gf_flock *lock, dict_t *xdata);
+
+
+int
+args_inodelk_cbk_store (default_args_cbk_t *args,
+                      int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+int
+args_finodelk_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+int
+args_entrylk_cbk_store (default_args_cbk_t *args,
+                      int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+int
+args_fentrylk_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+
+int
+args_readdirp_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno,
+                       gf_dirent_t *entries, dict_t *xdata);
+
+
+int
+args_readdir_cbk_store (default_args_cbk_t *args,
+                      int32_t op_ret, int32_t op_errno,
+                      gf_dirent_t *entries, dict_t *xdata);
+
+
+int
+args_rchecksum_cbk_store (default_args_cbk_t *args,
+                        int32_t op_ret, int32_t op_errno,
+                        uint32_t weak_checksum, uint8_t *strong_checksum,
+                        dict_t *xdata);
+
+
+int
+args_xattrop_cbk_store (default_args_cbk_t *args, int32_t op_ret,
+                        int32_t op_errno, dict_t *xattr, dict_t *xdata);
+
+
+int
+args_fxattrop_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno,
+                       dict_t *xattr, dict_t *xdata);
+
+int
+args_setattr_cbk_store (default_args_cbk_t *args,
+                      int32_t op_ret, int32_t op_errno,
+                      struct iatt *statpre, struct iatt *statpost,
+                      dict_t *xdata);
+
+
+int
+args_fsetattr_cbk_store (default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno,
+                       struct iatt *statpre, struct iatt *statpost,
+                       dict_t *xdata);
+
+int
+args_fallocate_cbk_store(default_args_cbk_t *args,
+                       int32_t op_ret, int32_t op_errno,
+                       struct iatt *statpre, struct iatt *statpost,
+                       dict_t *xdata);
+
+int
+args_discard_cbk_store(default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno,
+                     struct iatt *statpre, struct iatt *statpost,
+                     dict_t *xdata);
+
+int
+args_zerofill_cbk_store(default_args_cbk_t *args,
+                     int32_t op_ret, int32_t op_errno,
+                     struct iatt *statpre, struct iatt *statpost,
+                     dict_t *xdata);
+
+int
+args_ipc_cbk_store (default_args_cbk_t *args,
+                  int32_t op_ret, int32_t op_errno, dict_t *xdata);
+
+void
+args_cbk_wipe (default_args_cbk_t *args_cbk);
+/* end of ARGS_ STORE section*/
 #endif /* _DEFAULTS_H */