Commit 4c408e79 authored Jul 14, 2017 by Changpeng Liu Committed by Jim Harris Jul 13, 2017

rocksdb: set errno to support Myrocks engine



Myrocks engine uses errno(ENOENT) as one of the condition
to create new database, this is okay for POSIX environment,
to support MySQL, spdk environment layer set errno to right
value as well.

Change-Id: Ib633f915ffafde0eacc0a8a0c451e510396d9176
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/369320


Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>

parent 4ce7dd66

lib/rocksdb/env_spdk.cc

+6 −1

Original line number	Diff line number	Diff line
		@@ -293,7 +293,12 @@ public:
		result->reset(new SpdkSequentialFile(file));
		return Status::OK();
		} else {
		return IOError(fname, rc);
		/* Myrocks engine uses errno(ENOENT) as one
		* special condition, for the purpose to
		* support MySQL, set the errno to right value.
		*/
		errno = -rc;
		return IOError(fname, errno);
		}
		} else {
		return PosixEnv::NewSequentialFile(fname, result, options);