nerdcruft/libcruft-util
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io: remove our wrapper flag types

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This commit is contained in:
Danny Robson 2016-04-05 11:07:23 +10:00
parent 9bbcfa6e63
commit 80158b7343
4 changed files with 40 additions and 25 deletions
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2
io.cpp
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@ -216,5 +216,5 @@ path_error::path_error (const boost::filesystem::path &_path):
const char*
path_error::path (void) const noexcept
{
return m_path.c_str ();
return m_path.string ().c_str ();
}

2
io.hpp
View File

@ -21,6 +21,8 @@
#include "platform.hpp"
#include "nocopy.hpp"
#include <sys/stat.h>
#include <cstdio>
#include <cstdint>
#include <memory>

48
io_win32.cpp
View File

@ -14,10 +14,10 @@
* Copyright 2014 Danny Robson <danny@nerdcruft.net>
*/
#include "io_win32.hpp"
#include "./io_win32.hpp"
#include "debug.hpp"
#include "except.hpp"
#include "./debug.hpp"
#include "./except.hpp"
#include <windows.h>
@ -26,38 +26,40 @@ using util::detail::win32::mapped_file;
//-----------------------------------------------------------------------------
static DWORD
access_to_flags (util::access_t a) {
switch (a) {
case util::ACCESS_READ:
return GENERIC_READ;
case util::ACCESS_WRITE:
return GENERIC_WRITE;
default:
unreachable ();
fflags_to_native (int flags) {
switch (flags) {
case O_RDONLY: return GENERIC_READ;
case O_WRONLY: return GENERIC_WRITE;
case O_RDWR: return GENERIC_READ | GENERIC_WRITE;
}
unreachable ();
}
//-----------------------------------------------------------------------------
mapped_file::mapped_file (const boost::filesystem::path &path,
access_t access):
int fflags,
int mflags):
m_data (nullptr, UnmapViewOfFile)
{
m_file.reset (CreateFile (path.string ().c_str (),
access_to_flags (access),
access == ACCESS_READ ? FILE_SHARE_READ : 0,
nullptr,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,
0));
m_file.reset (
CreateFile (
path.string ().c_str (),
fflags_to_native (fflags),
fflags & O_RDONLY ? FILE_SHARE_READ : 0,
nullptr,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,
0
)
);
if (m_file == INVALID_HANDLE_VALUE)
win32_error::throw_code ();
m_mapping.reset (CreateFileMapping (m_file,
nullptr,
access == ACCESS_READ ? PAGE_READONLY : PAGE_READWRITE,
access == O_RDONLY ? PAGE_READONLY : PAGE_READWRITE,
0, 0,
nullptr));
@ -65,7 +67,7 @@ mapped_file::mapped_file (const boost::filesystem::path &path,
win32_error::throw_code ();
auto view = MapViewOfFile (m_mapping,
access == ACCESS_READ ? FILE_MAP_READ : FILE_MAP_WRITE,
access == O_RDONLY ? FILE_MAP_READ : FILE_MAP_WRITE,
0, 0,
0);
if (view == nullptr)

13
io_win32.hpp
View File

@ -22,13 +22,24 @@
#include <cstdint>
#include <boost/filesystem/path.hpp>
#include <windows.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
namespace util {
namespace detail { namespace win32 {
enum {
PROT_NONE = 0,
PROT_READ = 1 << 0,
PROT_EXEC = 1 << 1,
PROT_WRITE = 1 << 2
};
class mapped_file {
public:
mapped_file (const boost::filesystem::path &path,
access_t access = ACCESS_READ);
int fflags = O_RDONLY | O_BINARY,
int mflags = PROT_READ);
mapped_file (const mapped_file&) = delete;
mapped_file& operator= (const mapped_file&) = delete;