iotune: reduce dependency on seastar core

Do not bring in the reactor through its headers. Also, do not compile
the other seastar objects in, except for the resource.cc file - which is
fairly independent of the rest anyway.

The end goal is to break iotune's dependency on the seastar memory
allocator.

Signed-off-by: Glauber Costa <[email protected]>

apps/iotune/iotune.cc

@@ -30,14 +30,16 @@
 #include <wordexp.h>
 #include <boost/thread/barrier.hpp>
 #include <boost/filesystem.hpp>
+#include <boost/range/irange.hpp>
+#include <boost/program_options.hpp>
 #include <mutex>
 #include <deque>
 #include <queue>
 #include <fstream>
 #include "core/sstring.hh"
 #include "core/posix.hh"
-#include "core/reactor.hh"
 #include "core/resource.hh"
+#include "core/aligned_buffer.hh"
 #include "util/defer.hh"
 
 using namespace std::chrono_literals;

configure.py

@@ -385,7 +385,7 @@ def have_xen():
     'tests/fair_queue_test': ['tests/fair_queue_test.cc'] + core + boost_test_lib,
     'apps/seawreck/seawreck': ['apps/seawreck/seawreck.cc', 'http/http_response_parser.rl'] + core + libnet,
     'apps/fair_queue_tester/fair_queue_tester': ['apps/fair_queue_tester/fair_queue_tester.cc'] + core,
-    'apps/iotune/iotune': ['apps/iotune/iotune.cc', 'apps/iotune/fsqual.cc'] + core,
+    'apps/iotune/iotune': ['apps/iotune/iotune.cc', 'apps/iotune/fsqual.cc'] + ['core/resource.cc'],
     'tests/blkdiscard_test': ['tests/blkdiscard_test.cc'] + core,
     'tests/sstring_test': ['tests/sstring_test.cc'] + core,
     'tests/unwind_test': ['tests/unwind_test.cc'] + core,