Ceph

Bug #14229

Updated by Kefu Chai over 8 years ago

<pre><code class="cpp"> 
 int MemStore::read( 
     coll_t cid, 
     const ghobject_t& oid, 
     uint64_t offset, 
     size_t len, 
     bufferlist& bl, 
     uint32_t op_flags, 
     bool allow_eio) 
 { 
   dout(10) << __func__ << " " << cid << " " << oid << " " 
	    << offset << "~" << len << dendl; 
   CollectionRef c = get_collection(cid); 
   if (!c) 
     return -ENOENT; 

   ObjectRef o = c->get_object(oid); 
   if (!o) 
     return -ENOENT; 
   if (offset >= o->get_size()) 
     return 0; 
   size_t l = len; 
   if (l == 0)    // note: len == 0 means read the entire object 
     // also need a guard here 
     l = o->get_size(); 
 </pre>

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