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Fix build when targeting Windows 7 as platform. (#1869)
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* Fix build when targeting Windows 7 as platform.

This change makes more of the code introduced in
https://github.com/yhirose/cpp-httplib/pull/1775
conditional on feature macros.

`CreateFile2`, `CreateFileMappingFromApp` and `MapViewOfFileFromApp` are
available only starting from Windows 8.

 * https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfile2
 * https://learn.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-createfilemappingfromapp
 * https://learn.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-mapviewoffilefromapp

* Update feature macros used and use `GetFileSizeEx` conditionally.
This commit is contained in:
mol123 2024-07-02 16:58:40 +02:00 committed by GitHub
parent 8cd0ed0509
commit c8bcaf8a91
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1 changed files with 15 additions and 2 deletions
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17
httplib.h
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@ -2824,16 +2824,29 @@ inline bool mmap::open(const char *path) {
wpath += path[i];
}
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM | WINAPI_PARTITION_GAMES) && (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
hFile_ = ::CreateFile2(wpath.c_str(), GENERIC_READ, FILE_SHARE_READ,
OPEN_EXISTING, NULL);
#else
hFile_ = ::CreateFileW(wpath.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
#endif
if (hFile_ == INVALID_HANDLE_VALUE) { return false; }
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM | WINAPI_PARTITION_GAMES)
LARGE_INTEGER size{};
if (!::GetFileSizeEx(hFile_, &size)) { return false; }
size_ = static_cast<size_t>(size.QuadPart);
#else
DWORD sizeHigh;
DWORD sizeLow;
sizeLow = ::GetFileSize(hFile_, &sizeHigh);
if (sizeLow == INVALID_FILE_SIZE) { return false; }
size_ = (static_cast<size_t>(sizeHigh) << (sizeof(DWORD) * 8)) | sizeLow;
#endif
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM) && (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
hMapping_ =
::CreateFileMappingFromApp(hFile_, NULL, PAGE_READONLY, size_, NULL);
#else
@ -2847,7 +2860,7 @@ inline bool mmap::open(const char *path) {
return false;
}
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM) && (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
addr_ = ::MapViewOfFileFromApp(hMapping_, FILE_MAP_READ, 0, 0);
#else
addr_ = ::MapViewOfFile(hMapping_, FILE_MAP_READ, 0, 0, 0);