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Fix is_eof in case of unsuccessful read.

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GitOrigin-RevId: b5a48f7818a02f6d0cf16b11a0745cf7fdeff326
This commit is contained in:
levlam 2018-10-24 21:57:47 +03:00
parent ed53b1a819
commit 8aab98871e
1 changed files with 1 additions and 3 deletions
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4
tdutils/td/utils/port/FileFd.cpp
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@ -7,8 +7,6 @@
#include "td/utils/port/FileFd.h"
#if TD_PORT_WINDOWS
#include "td/utils/misc.h" // for narrow_cast
#include "td/utils/port/Stat.h"
#include "td/utils/port/wstring_convert.h"
#endif
@ -222,7 +220,7 @@ Result<size_t> FileFd::read(MutableSlice slice) {
#if TD_PORT_POSIX
auto bytes_read = detail::skip_eintr([&] { return ::read(native_fd, slice.begin(), slice.size()); });
bool success = bytes_read >= 0;
bool is_eof = narrow_cast<size_t>(bytes_read) < slice.size();
bool is_eof = success && narrow_cast<size_t>(bytes_read) < slice.size();
#elif TD_PORT_WINDOWS
DWORD bytes_read = 0;
BOOL success = ReadFile(native_fd, slice.data(), narrow_cast<DWORD>(slice.size()), &bytes_read, nullptr);