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use boost::filesystem::resize_file #698

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merged 1 commit into from
Aug 26, 2023
Merged

use boost::filesystem::resize_file #698

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27 changes: 1 addition & 26 deletions src/rime/dict/mapped_file.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -12,31 +12,6 @@
#include <boost/interprocess/mapped_region.hpp>
#include <rime/dict/mapped_file.h>

#ifdef BOOST_RESIZE_FILE

#define RESIZE_FILE boost::filesystem::resize_file

#else

#ifdef _WIN32
#include <windows.h>
#define RESIZE_FILE(P, SZ) (resize_file_api(P, SZ) != 0)
static BOOL resize_file_api(const char* p, boost::uintmax_t size) {
HANDLE handle = CreateFileA(p, GENERIC_WRITE, 0, 0, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, 0);
LARGE_INTEGER sz;
sz.QuadPart = size;
return handle != INVALID_HANDLE_VALUE &&
::SetFilePointerEx(handle, sz, 0, FILE_BEGIN) &&
::SetEndOfFile(handle) && ::CloseHandle(handle);
}
#else
#include <unistd.h>
#define RESIZE_FILE(P, SZ) (::truncate(P, SZ) == 0)
#endif // _WIN32

#endif // BOOST_RESIZE_FILE

namespace rime {

class MappedFileImpl {
Expand Down Expand Up @@ -155,7 +130,7 @@ bool MappedFile::Resize(size_t capacity) {
if (IsOpen())
Close();
try {
RESIZE_FILE(file_name_.c_str(), capacity);
boost::filesystem::resize_file(file_name_.c_str(), capacity);
} catch (...) {
return false;
}
Expand Down