Fix the homeblocks API which now uses std::expected (#120)

Author: szmyd

.github/workflows/build_dependencies.yml

@@ -158,4 +158,5 @@ jobs:
       uses: codecov/codecov-action@v5
       with:
         files: ./coverage.xml
+        disable_search: true
       if: ${{ inputs.testing == 'True' && inputs.tooling == 'Coverage' }}

conanfile.py

@@ -10,7 +10,7 @@
 
 class UBlkPPConan(ConanFile):
     name = "ublkpp"
-    version = "0.15.1"
+    version = "0.15.2"
 
     homepage = "https://github.com/szmyd/ublkpp"
     description = "A UBlk library for CPP application"

example/ublkpp_disk.cpp

@@ -143,7 +143,7 @@ static auto create_hb_volume(UblkPPApplication& app, boost::uuids::uuid const& v
         ->create_volume(std::move(vol_info))
         .via(&folly::InlineExecutor::instance())
         .thenValue([](auto&& e) {
-            if (e.hasError()) { return std::make_error_condition(std::errc::io_error); }
+            if (!e.has_value()) { return std::make_error_condition(std::errc::io_error); }
             return std::error_condition();
         })
         .get();

gcovr.cfg

@@ -1,6 +1,8 @@
 high-threshold = 80
 medium-threshold = 65
 
+exclude-unreachable-branches = yes
+
 exclude = .*build.*
 exclude = .*flip.*
 exclude = .*generate.*

src/driver/homeblk_disk.cpp

@@ -90,7 +90,7 @@ io_result HomeBlkDisk::async_iov(ublksrv_queue const* q, ublk_io_data const* dat
             {
                 auto lck = std::scoped_lock< std::mutex >(pending_results_lck);
                 pending_results.emplace_back(async_result{
-                    data, sub_cmd, (e.hasError() ? -EIO : (int)nr_lbas << params()->basic.logical_bs_shift)});
+                    data, sub_cmd, (!e.has_value() ? -EIO : (int)nr_lbas << params()->basic.logical_bs_shift)});
             }
             ublksrv_queue_send_event(q);
             new_request.reset();