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Windows: simplify conditional compilation and fix call to CreateFileMappingW. (#1909)

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mol123 2024-09-03 00:01:05 +02:00 committed by GitHub
parent 7f6d413ddd
commit 21c9a6a1ff
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1 changed files with 11 additions and 18 deletions
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httplib.h
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@ -2847,9 +2847,7 @@ 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)
#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
hFile_ = ::CreateFile2(wpath.c_str(), GENERIC_READ, FILE_SHARE_READ,
OPEN_EXISTING, NULL);
#else
@ -2859,26 +2857,22 @@ inline bool mmap::open(const char *path) {
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; }
// If the following line doesn't compile due to QuadPart, update Windows SDK.
// See:
// https://github.com/yhirose/cpp-httplib/issues/1903#issuecomment-2316520721
if (size.QuadPart > std::numeric_limits<decltype(size_)>::max()) {
// `size_t` might be 32-bits, on 32-bits Windows.
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 | WINAPI_PARTITION_SYSTEM) && \
(_WIN32_WINNT >= _WIN32_WINNT_WIN8)
#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
hMapping_ =
::CreateFileMappingFromApp(hFile_, NULL, PAGE_READONLY, size_, NULL);
#else
hMapping_ = ::CreateFileMappingW(hFile_, NULL, PAGE_READONLY, size.HighPart,
size.LowPart, NULL);
hMapping_ = ::CreateFileMappingW(hFile_, NULL, PAGE_READONLY, 0, 0, NULL);
#endif
if (hMapping_ == NULL) {
@ -2886,8 +2880,7 @@ inline bool mmap::open(const char *path) {
return false;
}
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM) && \
(_WIN32_WINNT >= _WIN32_WINNT_WIN8)
#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
addr_ = ::MapViewOfFileFromApp(hMapping_, FILE_MAP_READ, 0, 0);
#else
addr_ = ::MapViewOfFile(hMapping_, FILE_MAP_READ, 0, 0, 0);