From c2e7eed6c746daf5f8bd0f2805b64c9183aa8148 Mon Sep 17 00:00:00 2001
From: Greg Farnum <gregf@hq.newdream.net>
Date: Tue, 23 Mar 2010 13:41:01 -0700
Subject: [PATCH] librados: add change_pool_auid functions

---
 src/librados.cc     | 41 +++++++++++++++++++++++++++++++++++++++++
 src/osdc/librados.h |  2 ++
 2 files changed, 43 insertions(+)

diff --git a/src/librados.cc b/src/librados.cc
index e9b9c05eb9328..83ae953677df7 100644
--- a/src/librados.cc
+++ b/src/librados.cc
@@ -131,6 +131,7 @@ public:
 
   int create_pool(string& name, __u64 auid=0);
   int delete_pool(const rados_pool_t& pool);
+  int change_pool_auid(const rados_pool_t& pool, __u64 auid);
 
   int list(PoolCtx& pool, int max_entries, std::list<object_t>& entries,
 			Objecter::ListContext *context);
@@ -570,6 +571,34 @@ int RadosClient::delete_pool(const rados_pool_t& pool)
   return reply;
 }
 
+/**
+ * Attempt to change a pool's associated auid "owner." Requires that you
+ * have write permission on both the current and new auid.
+ * pool: reference to the pool to change.
+ * auid: the auid you wish the pool to have.
+ * Returns: 0 on success, or -ERROR# on failure.
+ */
+int RadosClient::change_pool_auid(const rados_pool_t& pool, __u64 auid)
+{
+  int reply;
+
+  int poolID = ((PoolCtx *)pool)->poolid;
+
+  Mutex mylock("RadosClient::change_pool_auid::mylock");
+  Cond cond;
+  bool done;
+  lock.Lock();
+  objecter->change_pool_auid(poolID,
+			     new C_SafeCond(&mylock, &cond, &done, &reply),
+			     auid);
+  lock.Unlock();
+
+  mylock.Lock();
+  while (!done) cond.Wait(mylock);
+  mylock.Unlock();
+  return reply;
+}
+
 int RadosClient::snap_list(PoolCtx *pool, vector<rados_snap_t> *snaps)
 {
   Mutex::Locker l(lock);
@@ -1096,6 +1125,12 @@ int Rados::delete_pool(const rados_pool_t& pool)
   return client->delete_pool(pool);
 }
 
+int Rados::change_pool_auid(const rados_pool_t& pool, __u64 auid)
+{
+  if (!client) return -EINVAL;
+  return client->change_pool_auid(pool, auid);
+}
+
 int Rados::get_fs_stats(rados_statfs_t& result) {
   if(!client) return -EINVAL;
   return client->get_fs_stats(result);
@@ -1460,6 +1495,12 @@ extern "C" int rados_delete_pool(const rados_pool_t pool)
 {
   return radosp->delete_pool(pool);
 }
+
+extern "C" int rados_change_pool_auid(const rados_pool_t pool, __u64 auid)
+{
+  return radosp->change_pool_auid(pool, auid);
+}
+
 // snaps
 
 extern "C" int rados_snap_create(const rados_pool_t pool, const char *snapname)
diff --git a/src/osdc/librados.h b/src/osdc/librados.h
index cee9935c52e17..ad0da7eb68a90 100644
--- a/src/osdc/librados.h
+++ b/src/osdc/librados.h
@@ -55,6 +55,7 @@ int rados_pool_list_next(rados_pool_t pool, const char **entry, rados_list_ctx_t
 int rados_create_pool(const char *name);
 int rados_create_pool_with_auid(const char *name, __u64 auid);
 int rados_delete_pool(const rados_pool_t pool);
+int rados_change_pool_auid(const rados_pool_t pool, __u64 auid);
 
 /* snapshots */
 int rados_snap_create(const rados_pool_t pool, const char *snapname);
@@ -135,6 +136,7 @@ public:
 
   int create_pool(const char *name, __u64 auid=0);
   int delete_pool(const rados_pool_t& pool);
+  int change_pool_auid(const rados_pool_t& pool, __u64 auid);
 
   int snap_create(const rados_pool_t pool, const char *snapname);
   int snap_remove(const rados_pool_t pool, const char *snapname);
-- 
2.39.5