Merge branch 'develop' of https://github.com/ned14/llfio into develop

8 files changed, 75 insertions, 55 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ab59a446..a83a4dd9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,6 +28,8 @@ include(QuickCppLibUtils)
 include(QuickCppLibPolicies)
 
 option(LLFIO_USE_EXPERIMENTAL_SG14_STATUS_CODE "Whether to use SG14 status_code for failure handling" OFF)
+option(LLFIO_ENABLE_DEPENDENCY_SMOKE_TEST "Whether to build executables which are smoke tests that LLFIO is fully working. Used by various package managers such as vcpkg." OFF)
+set(UNIT_TESTS_CXX_VERSION "latest" CACHE STRING "The version of C++ to use in the header-only unit tests")
 
 ensure_git_subrepo("${CMAKE_CURRENT_SOURCE_DIR}/include/llfio/ntkernel-error-category/include" "https://github.com/ned14/ntkernel-error-category.git")
 
@@ -66,8 +68,6 @@ if(WIN32)
   endif()
 endif()
 
-set(UNIT_TESTS_CXX_VERSION "latest" CACHE STRING "The version of C++ to use in the header-only unit tests")
-
 # Make the standard static and shared libraries, and if supported by this compiler, C++ modules
 # for both static and shared libraries as well. For the non-C++ module variants, makes the
 # interface headers into precompiled headers. Only builds all of them if this is the topmost
@@ -161,7 +161,13 @@ if((MSVC AND MSVC_VERSION VERSION_GREATER_EQUAL 1923) OR APPLE)
   endif()
 endif()
 # Set the library dependencies this library has
-all_link_libraries(PUBLIC quickcpplib::hl outcome::hl Threads::Threads $<$<PLATFORM_ID:Linux>:rt>)
+all_link_libraries(PUBLIC Threads::Threads $<$<PLATFORM_ID:Linux>:rt>)
+if(TARGET outcome::hl)
+  all_link_libraries(PUBLIC outcome::hl)
+endif()
+if(TARGET quickcpplib::hl)
+  all_link_libraries(PUBLIC quickcpplib::hl)
+endif()
 
 # Set the system dependencies this library has
 include(CheckCXXSourceCompiles)
@@ -390,6 +396,21 @@ if(NOT PROJECT_IS_DEPENDENCY)
   endif()
 endif()
 
+if(LLFIO_ENABLE_DEPENDENCY_SMOKE_TEST)
+  set(LLFIO_SMOKE_TESTS)
+  add_executable(llfio-dependency-smoke-test "test-packaging/example.cpp")
+  list(APPEND LLFIO_SMOKE_TESTS llfio-dependency-smoke-test)
+  foreach(target ${LLFIO_SMOKE_TESTS})
+    target_link_libraries(${target} PRIVATE llfio::dl)
+    set_target_properties(${target} PROPERTIES
+      RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin"
+    )
+    add_test(NAME ${target} CONFIGURATIONS Debug Release RelWithDebInfo MinSizeRel
+      COMMAND $<TARGET_FILE:${target}> --reporter junit --out $<TARGET_FILE:${target}>.junit.xml
+    )
+  endforeach()
+endif()
+
 # Cache this library's auto scanned sources for later reuse
 include(QuickCppLibCacheLibrarySources)
 
diff --git a/cmake/QuickCppLibBootstrap.cmake b/cmake/QuickCppLibBootstrap.cmake
index 0094ad4f..359c0eb7 100644
--- a/cmake/QuickCppLibBootstrap.cmake
+++ b/cmake/QuickCppLibBootstrap.cmake
@@ -28,7 +28,7 @@ foreach(item ${CMAKE_MODULE_PATH})
     set(quickcpplib_done ON)
   endif()
 endforeach()
-if(DEFINED quickcpplib_DIR)
+if(NOT quickcpplib_done AND quickcpplib_DIR)
   find_package(quickcpplib QUIET CONFIG)
   if(quickcpplib_FOUND)
     if(EXISTS "${quickcpplib_DIR}/share/cmakelib")
@@ -53,6 +53,8 @@ if(NOT quickcpplib_done)
       set(CTEST_QUICKCPPLIB_SCRIPTS "${CMAKE_SOURCE_DIR}/../quickcpplib/scripts")
       # Copy latest version of myself into end user
       file(COPY "${CTEST_QUICKCPPLIB_SCRIPTS}/../cmake/QuickCppLibBootstrap.cmake" DESTINATION "${CMAKE_SOURCE_DIR}/cmake/")
+    elseif(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/quickcpplib/repo/cmakelib")
+      set(CTEST_QUICKCPPLIB_CLONE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/quickcpplib")
     elseif(CMAKE_BINARY_DIR)
       # Place into root binary directory, same place as where find_quickcpplib_library() puts dependencies.
       set(CTEST_QUICKCPPLIB_CLONE_DIR "${CMAKE_BINARY_DIR}/quickcpplib")
diff --git a/include/llfio/revision.hpp b/include/llfio/revision.hpp
index c823736d..b43c4858 100644
--- a/include/llfio/revision.hpp
+++ b/include/llfio/revision.hpp
@@ -1,4 +1,4 @@
 // Note the second line of this file must ALWAYS be the git SHA, third line ALWAYS the git SHA update time
-#define LLFIO_PREVIOUS_COMMIT_REF    48ee8bae656cb5d53f38feb462caa53e1128b76d
-#define LLFIO_PREVIOUS_COMMIT_DATE   "2021-01-27 20:37:58 +00:00"
-#define LLFIO_PREVIOUS_COMMIT_UNIQUE 48ee8bae
+#define LLFIO_PREVIOUS_COMMIT_REF    669e0b45bbc60cf4d46a72559710d428f2863740
+#define LLFIO_PREVIOUS_COMMIT_DATE   "2021-02-02 11:20:42 +00:00"
+#define LLFIO_PREVIOUS_COMMIT_UNIQUE 669e0b45
diff --git a/include/llfio/v2.0/detail/impl/fast_random_file_handle.ipp b/include/llfio/v2.0/detail/impl/fast_random_file_handle.ipp
index 4429592e..200e4df6 100644
--- a/include/llfio/v2.0/detail/impl/fast_random_file_handle.ipp
+++ b/include/llfio/v2.0/detail/impl/fast_random_file_handle.ipp
@@ -123,10 +123,10 @@ fast_random_file_handle::io_result<fast_random_file_handle::buffers_type> fast_r
         }
         if(p == &blk)
         {
-          memcpy(buffer.data() + i, ((const char *) p) + thisblockoffset, thisblocklen);
+          memcpy(buffer.data() + i, ((const char *) p) + thisblockoffset, (size_type) thisblocklen);
         }
         reqs.offset += thisblocklen;
-        i += thisblocklen;
+        i += (size_type) thisblocklen;
         togo -= thisblocklen;
         if(togo == 0)
         {
diff --git a/include/llfio/v2.0/detail/impl/windows/file_handle.ipp b/include/llfio/v2.0/detail/impl/windows/file_handle.ipp
index 43bbf4df..8c065f68 100644
--- a/include/llfio/v2.0/detail/impl/windows/file_handle.ipp
+++ b/include/llfio/v2.0/detail/impl/windows/file_handle.ipp
@@ -441,7 +441,7 @@ result<file_handle::extent_pair> file_handle::clone_extents_to(file_handle::exte
       extent.length = mycurrentlength - extent.offset;
     }
     LLFIO_DEADLINE_TO_SLEEP_INIT(d);
-    const extent_type blocksize = utils::file_buffer_default_size();
+    const size_type blocksize = utils::file_buffer_default_size();
     byte *buffer = nullptr;
     auto unbufferh = make_scope_exit([&]() noexcept {
       if(buffer != nullptr)
@@ -663,7 +663,7 @@ result<file_handle::extent_pair> file_handle::clone_extents_to(file_handle::exte
       for(extent_type thisoffset = 0; thisoffset < item.src.length; thisoffset += blocksize)
       {
         bool done = false;
-        const auto thisblock = std::min(blocksize, item.src.length - thisoffset);
+        const auto thisblock = std::min((extent_type) blocksize, item.src.length - thisoffset);
         if(duplicate_extents && item.op == workitem::clone_extents)
         {
           typedef struct _DUPLICATE_EXTENTS_DATA
@@ -713,7 +713,7 @@ result<file_handle::extent_pair> file_handle::clone_extents_to(file_handle::exte
             buffer = utils::page_allocator<byte>().allocate(blocksize);
           }
           deadline nd;
-          buffer_type b(buffer, thisblock);
+          buffer_type b(buffer, (size_type) thisblock);
           LLFIO_DEADLINE_TO_PARTIAL_DEADLINE(nd, d);
           OUTCOME_TRY(auto readed, read({{&b, 1}, item.src.offset + thisoffset}, nd));
           buffer_dirty = true;
@@ -807,10 +807,10 @@ result<file_handle::extent_pair> file_handle::clone_extents_to(file_handle::exte
             buffer = utils::page_allocator<byte>().allocate(blocksize);
           }
           deadline nd;
-          const_buffer_type cb(buffer, thisblock);
+          const_buffer_type cb(buffer, (size_type) thisblock);
           if(buffer_dirty)
           {
-            memset(buffer, 0, thisblock);
+            memset(buffer, 0, (size_type) thisblock);
             buffer_dirty = false;
           }
           LLFIO_DEADLINE_TO_PARTIAL_DEADLINE(nd, d);
diff --git a/include/llfio/v2.0/detail/impl/windows/map_handle.ipp b/include/llfio/v2.0/detail/impl/windows/map_handle.ipp
index dd17d754..f1996484 100644
--- a/include/llfio/v2.0/detail/impl/windows/map_handle.ipp
+++ b/include/llfio/v2.0/detail/impl/windows/map_handle.ipp
@@ -455,7 +455,7 @@ static inline result<void> win32_maps_apply(byte *addr, size_t bytes, win32_map_
       /* mbi.RegionSize will be that from mbi.BaseAddress to end of a reserved region,
       so clamp to region size originally requested.
       */
-      OUTCOME_TRY(f(reinterpret_cast<byte *>(mbi.BaseAddress), std::min(mbi.RegionSize, bytes)));
+      OUTCOME_TRY(f(reinterpret_cast<byte *>(mbi.BaseAddress), std::min((size_t) mbi.RegionSize, bytes)));
     }
     addr += mbi.RegionSize;
     if(mbi.RegionSize < bytes)
@@ -597,13 +597,13 @@ map_handle::io_result<map_handle::const_buffers_type> map_handle::_do_barrier(ma
   // If nvram and not syncing metadata, use lightweight barrier
   if(kind <= barrier_kind::wait_data_only && is_nvram())
   {
-    auto synced = nvram_barrier({addr, bytes});
+    auto synced = nvram_barrier({addr, (size_type) bytes});
     if(synced.size() >= bytes)
     {
       return {reqs.buffers};
     }
   }
-  OUTCOME_TRYV(win32_maps_apply(addr, bytes, win32_map_sought::committed, [](byte *addr, size_t bytes) -> result<void> {
+  OUTCOME_TRYV(win32_maps_apply(addr, (size_type) bytes, win32_map_sought::committed, [](byte *addr, size_t bytes) -> result<void> {
     if(FlushViewOfFile(addr, static_cast<SIZE_T>(bytes)) == 0)
     {
       return win32_error();
@@ -684,7 +684,7 @@ result<map_handle> map_handle::map(section_handle &section, size_type bytes, ext
   ret.value()._addr = static_cast<byte *>(addr);
   ret.value()._offset = offset;
   ret.value()._reservation = _bytes;
-  ret.value()._length = section.length().value() - offset;
+  ret.value()._length = (size_type) (section.length().value() - offset);
   ret.value()._pagesize = pagesize;
   // Make my handle borrow the native handle of my backing storage
   ret.value()._v.h = section.backing_native_handle().h;
@@ -754,7 +754,7 @@ result<map_handle::size_type> map_handle::truncate(size_type newsize, bool /* un
     // If newsize isn't exactly a previous extension, this will fail, same as for the VirtualAlloc case
     OUTCOME_TRY(win32_release_file_allocations(_addr + newsize, _reservation - newsize));
     _reservation = newsize;
-    _length = (length - _offset < newsize) ? (length - _offset) : newsize;  // length of backing, not reservation
+    _length = (size_type)((length - _offset < newsize) ? (length - _offset) : newsize);  // length of backing, not reservation
     return _reservation;
   }
   // Try to map an additional part of the section directly after this map
@@ -772,7 +772,7 @@ result<map_handle::size_type> map_handle::truncate(size_type newsize, bool /* un
     return ntkernel_error(ntstat);
   }
   _reservation += _bytes;
-  _length = (length - _offset < newsize) ? (length - _offset) : newsize;  // length of backing, not reservation
+  _length = (size_type)((length - _offset < newsize) ? (length - _offset) : newsize);  // length of backing, not reservation
   return _reservation;
 }
 
diff --git a/include/llfio/v2.0/detail/impl/windows/mapped_file_handle.ipp b/include/llfio/v2.0/detail/impl/windows/mapped_file_handle.ipp
index beef8cb8..6afece64 100644
--- a/include/llfio/v2.0/detail/impl/windows/mapped_file_handle.ipp
+++ b/include/llfio/v2.0/detail/impl/windows/mapped_file_handle.ipp
@@ -39,7 +39,7 @@ result<mapped_file_handle::size_type> mapped_file_handle::reserve(size_type rese
   }
   if(reservation == 0)
   {
-    reservation = length;
+    reservation = (size_type) length;
   }
   if(!_sh.is_valid())
   {
@@ -66,7 +66,7 @@ result<mapped_file_handle::size_type> mapped_file_handle::reserve(size_type rese
   }
   else if(map_size > length)
   {
-    map_size = length;
+    map_size = (size_type) length;
   }
   OUTCOME_TRYV(_mh.close());
   OUTCOME_TRY(auto &&mh, map_handle::map(_sh, map_size, 0, mapflags));
@@ -117,7 +117,7 @@ result<mapped_file_handle::extent_type> mapped_file_handle::truncate(extent_type
     OUTCOME_TRY(auto &&ret, file_handle::truncate(newsize));
     if(newsize > _reservation)
     {
-      _reservation = newsize;
+      _reservation = (size_type) newsize;
     }
     // Reserve now we have resized, it'll create a new section for the new size
     OUTCOME_TRYV(reserve(_reservation));
@@ -149,13 +149,13 @@ result<mapped_file_handle::extent_type> mapped_file_handle::truncate(extent_type
     // Have we exceeded the reservation? If so, reserve a new reservation which will recreate the map.
     if(newsize > _reservation)
     {
-      OUTCOME_TRY(auto &&ret, reserve(newsize));
+      OUTCOME_TRY(auto &&ret, reserve((size_type) newsize));
       return ret;
     }
     size = newsize;
   }
   // Adjust the map to reflect the new size of the section
-  _mh._length = size;
+  _mh._length = (size_type) size;
   return newsize;
 }
 
@@ -183,13 +183,13 @@ result<mapped_file_handle::extent_type> mapped_file_handle::update_map() noexcep
   if(size >= length)
   {
     // Section is already the same size as the file, or is as big as it can go
-    _mh._length = length;
+    _mh._length = (size_type) length;
     return length;
   }
   // Nobody appears to have extended the section to match the file yet
   OUTCOME_TRYV(_sh.truncate(length));
   // Adjust the map to reflect the new size of the section
-  _mh._length = length;
+  _mh._length = (size_type) length;
   return length;
 }
 
diff --git a/test-packaging/example.cpp b/test-packaging/example.cpp
index 5840d4df..b64a98d2 100644
--- a/test-packaging/example.cpp
+++ b/test-packaging/example.cpp
@@ -24,37 +24,34 @@ Distributed under the Boost Software License, Version 1.0.
 
 #include <llfio.hpp>
 
-#include <vector>
+#include <iostream>
 
 int main()
 {
-  //! [file_entire_file1]
   namespace llfio = LLFIO_V2_NAMESPACE;
 
-  // Open the file for read
-  llfio::file_handle fh = llfio::file(  //
-    {},       // path_handle to base directory
-    "foo"     // path_view to path fragment relative to base directory
-              // default mode is read only
-              // default creation is open existing
-              // default caching is all
-              // default flags is none
-  ).value();  // If failed, throw a filesystem_error exception
-
-  // Make a vector sized the current maximum extent of the file
-  std::vector<llfio::byte> buffer(fh.maximum_extent().value());
-
-  // Synchronous scatter read from file
-  llfio::file_handle::size_type bytesread = llfio::read(
-    fh,                                 // handle to read from
-    0,                                  // offset
-    {{ buffer.data(), buffer.size() }}  // Single scatter buffer of the vector 
-                                        // default deadline is infinite
-  ).value();                            // If failed, throw a filesystem_error exception
-
-  // In case of racy truncation of file by third party to new length, adjust buffer to
-  // bytes actually read
-  buffer.resize(bytesread);
-  //! [file_entire_file1]
-  return 0;
+  auto r = []() -> llfio::result<int> {
+    OUTCOME_TRY(auto fh, llfio::file_handle::temp_file());
+    static const char *buffers[] = { "He", "llo", " world" };
+    OUTCOME_TRY(fh.write(0, { { (const llfio::byte *) buffers[0], 2 }, { (const llfio::byte *) buffers[1], 3 }, { (const llfio::byte *) buffers[2], 6 } } ));
+    llfio::byte buffer[64];
+    OUTCOME_TRY(auto read, fh.read(0, { {buffer, sizeof(buffer)} }));
+    if(read != 11)
+    {
+      std::cerr << "FAILURE: Did not read 11 bytes!" << std::endl;
+      return 1;
+    }
+    if(0 != memcmp(buffer, "Hello world", 11))
+    {
+      std::cerr << "FAILURE: Did not read what was written!" << std::endl;
+      return 1;
+    }
+    return 0;
+  }();
+  if(!r)
+  {
+    std::cerr << "ERROR: " << r.error().message().c_str() << std::endl;
+    return 1;
+  }
+  return r.value();
 }