From eddbf3a23392ca47a697779167c61b4ab790732b Mon Sep 17 00:00:00 2001
From: Sheena Artrip <sheenobu@fb.com>
Date: Wed, 29 Jan 2020 15:12:17 -0800
Subject: metadisp: new translator for data and metadata separation

Summary:

feature/metadisp is an xlator for performing "metadata dispersal" across
multiple children. it does this by flattening the complex
POSIX paths into /$GFID style paths, then forwarding the
metadata operations to its first child and forwarding the
data operations to its second child.

The purpose of this xlator is to allow separation of data and metadata,
in cases where metadata might be stored in another format (embedded kv?),
on another disk (ssd), on another host (dht2).

Change-Id: I392c8bd0c867a3237d144aea327323f700a2728d
Updates: #816
Signed-Off-By: Sheena Artrip <sheenobu@fb.com>
Tested-By: Amar Tumballi <amar@kadalu.io>
---
 tests/basic/metadisp/gfs-fsetxattr.c | 141 +++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 tests/basic/metadisp/gfs-fsetxattr.c

(limited to 'tests/basic/metadisp/gfs-fsetxattr.c')

diff --git a/tests/basic/metadisp/gfs-fsetxattr.c b/tests/basic/metadisp/gfs-fsetxattr.c
new file mode 100644
index 00000000000..63578bc528f
--- /dev/null
+++ b/tests/basic/metadisp/gfs-fsetxattr.c
@@ -0,0 +1,141 @@
+#include <glusterfs/api/glfs.h>
+#include <glusterfs/api/glfs-handles.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int gfapi = 1;
+
+int
+main(int argc, char *argv[])
+{
+    glfs_t *fs = NULL;
+    int ret = 0;
+    int i = 0;
+    glfs_fd_t *fd = NULL;
+    char *topdir = "topdir", *filename = "file1";
+    char *buf = NULL;
+    char *logfile = NULL;
+    char *hostname = NULL;
+    char *basename = NULL;
+    char *dir1 = NULL, *dir2 = NULL, *filename1 = NULL, *filename2 = NULL;
+    struct stat sb = {
+        0,
+    };
+
+    if (argc != 5) {
+        fprintf(
+            stderr,
+            "Expect following args %s <hostname> <Vol> <log file> <basename>\n",
+            argv[0]);
+        return -1;
+    }
+
+    hostname = argv[1];
+    logfile = argv[3];
+    basename = argv[4];
+
+    fs = glfs_new(argv[2]);
+    if (!fs) {
+        fprintf(stderr, "glfs_new: returned NULL (%s)\n", strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_set_volfile_server(fs, "tcp", hostname, 24007);
+    if (ret < 0) {
+        fprintf(stderr, "glfs_set_volfile_server failed ret:%d (%s)\n", ret,
+                strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_set_logging(fs, logfile, 7);
+    if (ret < 0) {
+        fprintf(stderr, "glfs_set_logging failed with ret: %d (%s)\n", ret,
+                strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_init(fs);
+    if (ret < 0) {
+        fprintf(stderr, "glfs_init failed with ret: %d (%s)\n", ret,
+                strerror(errno));
+        return -1;
+    }
+
+    ret = asprintf(&dir1, "%s-dir", basename);
+    if (ret < 0) {
+        fprintf(stderr, "cannot construct filename (%s)", strerror(errno));
+        return ret;
+    }
+
+    ret = glfs_mkdir(fs, dir1, 0755);
+    if (ret < 0) {
+        fprintf(stderr, "mkdir(%s): %s\n", dir1, strerror(errno));
+        return -1;
+    }
+
+    fd = glfs_opendir(fs, dir1);
+    if (!fd) {
+        fprintf(stderr, "/: %s\n", strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_fsetxattr(fd, "user.dirfattr", "fsetxattr", 9, 0);
+    if (ret < 0) {
+        fprintf(stderr, "fsetxattr(%s): %d (%s)\n", dir1, ret, strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_closedir(fd);
+    if (ret < 0) {
+        fprintf(stderr, "glfs_closedir failed with ret: %d (%s)\n", ret,
+                strerror(errno));
+        return -1;
+    }
+
+    ret = asprintf(&filename1, "%s-file", basename);
+    if (ret < 0) {
+        fprintf(stderr, "cannot construct filename (%s)", strerror(errno));
+        return ret;
+    }
+
+    ret = asprintf(&filename2, "%s-file-renamed", basename);
+    if (ret < 0) {
+        fprintf(stderr, "cannot construct filename (%s)", strerror(errno));
+        return ret;
+    }
+
+    fd = glfs_creat(fs, filename1, O_RDWR, 0644);
+    if (!fd) {
+        fprintf(stderr, "%s: (%p) %s\n", filename1, fd, strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_rename(fs, filename1, filename2);
+    if (ret < 0) {
+        fprintf(stderr, "glfs_rename failed with ret: %d (%s)\n", ret,
+                strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_lstat(fs, filename2, &sb);
+    if (ret < 0) {
+        fprintf(stderr, "glfs_lstat failed with ret: %d (%s)\n", ret,
+                strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_fsetxattr(fd, "user.filefattr", "fsetxattr", 9, 0);
+    if (ret < 0) {
+        fprintf(stderr, "fsetxattr(%s): %d (%s)\n", dir1, ret, strerror(errno));
+        return -1;
+    }
+
+    ret = glfs_close(fd);
+    if (ret < 0) {
+        fprintf(stderr, "glfs_close failed with ret: %d (%s)\n", ret,
+                strerror(errno));
+        return -1;
+    }
+}
-- 
cgit