mirror of
https://git.libcamera.org/libcamera/libcamera.git
synced 2025-07-12 23:09:45 +03:00
e228c290c9
Headers which must not be exposed as part of the public libcamera API should include base/private.h. Any interface which includes the private.h header will only be able to build if the libcamera_private dependency is used (or the libcamera_base_private dependency directly). Build targets which are intended to use the private API's will use the libcamera_private to handle the automatic definition of the inclusion guard. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
80 lines
1.4 KiB
C++
80 lines
1.4 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
/*
|
|
* Copyright (C) 2020, Google Inc.
|
|
*
|
|
* file.h - File I/O operations
|
|
*/
|
|
#ifndef __LIBCAMERA_BASE_FILE_H__
|
|
#define __LIBCAMERA_BASE_FILE_H__
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <map>
|
|
#include <string>
|
|
|
|
#include <libcamera/base/private.h>
|
|
|
|
#include <libcamera/base/class.h>
|
|
#include <libcamera/base/span.h>
|
|
|
|
namespace libcamera {
|
|
|
|
class File
|
|
{
|
|
public:
|
|
enum MapFlag {
|
|
MapNoOption = 0,
|
|
MapPrivate = (1 << 0),
|
|
};
|
|
|
|
enum OpenMode {
|
|
NotOpen = 0,
|
|
ReadOnly = (1 << 0),
|
|
WriteOnly = (1 << 1),
|
|
ReadWrite = ReadOnly | WriteOnly,
|
|
};
|
|
|
|
File(const std::string &name);
|
|
File();
|
|
~File();
|
|
|
|
const std::string &fileName() const { return name_; }
|
|
void setFileName(const std::string &name);
|
|
bool exists() const;
|
|
|
|
bool open(OpenMode mode);
|
|
bool isOpen() const { return fd_ != -1; }
|
|
OpenMode openMode() const { return mode_; }
|
|
void close();
|
|
|
|
int error() const { return error_; }
|
|
ssize_t size() const;
|
|
|
|
off_t pos() const;
|
|
off_t seek(off_t pos);
|
|
|
|
ssize_t read(const Span<uint8_t> &data);
|
|
ssize_t write(const Span<const uint8_t> &data);
|
|
|
|
Span<uint8_t> map(off_t offset = 0, ssize_t size = -1,
|
|
MapFlag flags = MapNoOption);
|
|
bool unmap(uint8_t *addr);
|
|
|
|
static bool exists(const std::string &name);
|
|
|
|
private:
|
|
LIBCAMERA_DISABLE_COPY(File)
|
|
|
|
void unmapAll();
|
|
|
|
std::string name_;
|
|
int fd_;
|
|
OpenMode mode_;
|
|
|
|
int error_;
|
|
std::map<void *, size_t> maps_;
|
|
};
|
|
|
|
} /* namespace libcamera */
|
|
|
|
#endif /* __LIBCAMERA_BASE_FILE_H__ */
|