generic-library/poco
1
0
Fork 0
mirror of https://github.com/pocoproject/poco.git synced 2025-03-31 16:04:27 +02:00
Code Issues Projects Releases Wiki Activity

added Poco::File::linkTo()

Browse Source
This commit is contained in:
Günter Obiltschnig 2017-12-14 10:35:07 +01:00
parent 9472b163b4
commit d29972ef24
12 changed files with 129 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
Foundation/include/Poco/File.h
View File

@ -63,6 +63,13 @@ class Foundation_API File: private FileImpl
public:
typedef FileSizeImpl FileSize;
enum LinkType
/// Type of link for linkTo().
{
LINK_HARD = 0, /// hard link
LINK_SYMBOLIC = 1 /// symbolic link
};
File();
/// Creates the file.
@ -189,6 +196,14 @@ public:
void renameTo(const std::string& path);
/// Renames the file to the new name.
void linkTo(const std::string& path, LinkType type = LINK_SYMBOLIC) const;
/// Creates a link (symbolic or hard, depending on type argument)
/// at the given path to the file or directory.
///
/// May not be supported on all platforms.
/// Furthermore, some operating systems do not allow creating
/// hard links to directories.
void remove(bool recursive = false);
/// Deletes the file. If recursive is true and the
/// file is a directory, recursively deletes all

9
Foundation/include/Poco/File_UNIX.h
View File

@ -49,18 +49,19 @@ protected:
void setLastModifiedImpl(const Timestamp& ts);
FileSizeImpl getSizeImpl() const;
void setSizeImpl(FileSizeImpl size);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void copyToImpl(const std::string& path) const;
void renameToImpl(const std::string& path);
void linkToImpl(const std::string& path, int type) const;
void removeImpl();
bool createFileImpl();
bool createDirectoryImpl();
static void handleLastErrorImpl(const std::string& path);
private:
std::string _path;
friend class DirectoryIteratorImpl;
friend class LinuxDirectoryWatcherStrategy;
friend class BSDDirectoryWatcherStrategy;

9
Foundation/include/Poco/File_VX.h
View File

@ -49,18 +49,19 @@ protected:
void setLastModifiedImpl(const Timestamp& ts);
FileSizeImpl getSizeImpl() const;
void setSizeImpl(FileSizeImpl size);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void copyToImpl(const std::string& path) const;
void renameToImpl(const std::string& path);
void linkToImpl(const std::string& path, int type) const;
void removeImpl();
bool createFileImpl();
bool createDirectoryImpl();
static void handleLastErrorImpl(const std::string& path);
private:
std::string _path;
friend class DirectoryIteratorImpl;
};

9
Foundation/include/Poco/File_WIN32.h
View File

@ -50,18 +50,19 @@ protected:
void setLastModifiedImpl(const Timestamp& ts);
FileSizeImpl getSizeImpl() const;
void setSizeImpl(FileSizeImpl size);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void copyToImpl(const std::string& path) const;
void renameToImpl(const std::string& path);
void linkToImpl(const std::string& path, int type) const;
void removeImpl();
bool createFileImpl();
bool createDirectoryImpl();
static void handleLastErrorImpl(const std::string& path);
private:
std::string _path;
friend class FileHandle;
friend class DirectoryIteratorImpl;
friend class WindowsDirectoryWatcherStrategy;

9
Foundation/include/Poco/File_WIN32U.h
View File

@ -50,20 +50,21 @@ protected:
void setLastModifiedImpl(const Timestamp& ts);
FileSizeImpl getSizeImpl() const;
void setSizeImpl(FileSizeImpl size);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void copyToImpl(const std::string& path) const;
void renameToImpl(const std::string& path);
void linkToImpl(const std::string& path, int type) const;
void removeImpl();
bool createFileImpl();
bool createDirectoryImpl();
static void handleLastErrorImpl(const std::string& path);
static void convertPath(const std::string& utf8Path, std::wstring& utf16Path);
private:
std::string _path;
std::wstring _upath;
friend class FileHandle;
friend class DirectoryIteratorImpl;
friend class WindowsDirectoryWatcherStrategy;

9
Foundation/include/Poco/File_WINCE.h
View File

@ -50,20 +50,21 @@ protected:
void setLastModifiedImpl(const Timestamp& ts);
FileSizeImpl getSizeImpl() const;
void setSizeImpl(FileSizeImpl size);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void setWriteableImpl(bool flag = true);
void setExecutableImpl(bool flag = true);
void copyToImpl(const std::string& path) const;
void renameToImpl(const std::string& path);
void linkToImpl(const std::string& path, int type) const;
void removeImpl();
bool createFileImpl();
bool createDirectoryImpl();
static void handleLastErrorImpl(const std::string& path);
static void convertPath(const std::string& utf8Path, std::wstring& utf16Path);
private:
std::string _path;
std::wstring _upath;
friend class FileHandle;
friend class DirectoryIteratorImpl;
friend class FileStreamBuf;

6
Foundation/src/File.cpp
View File

@ -256,6 +256,12 @@ void File::renameTo(const std::string& path)
}
void File::linkTo(const std::string& path, LinkType type) const
{
linkToImpl(path, type);
}
void File::remove(bool recursive)
{
if (recursive && !isLink() && isDirectory())

17
Foundation/src/File_UNIX.cpp
View File

@ -368,6 +368,23 @@ void FileImpl::renameToImpl(const std::string& path)
}
void FileImpl::linkToImpl(const std::string& path, int type) const
{
poco_assert (!_path.empty());
if (type == 0)
{
if (link(_path.c_str(), path.c_str()) != 0)
handleLastErrorImpl(_path);
}
else
{
if (symlink(_path.c_str(), path.c_str()) != 0)
handleLastErrorImpl(_path);
}
}
void FileImpl::removeImpl()
{
poco_assert (!_path.empty());

14
Foundation/src/File_VX.cpp
View File

@ -240,7 +240,7 @@ void FileImpl::copyToImpl(const std::string& path) const
if (sd == -1) handleLastErrorImpl(_path);
struct stat st;
if (fstat(sd, &st) != 0)
if (fstat(sd, &st) != 0)
{
close(sd);
handleLastErrorImpl(_path);
@ -259,7 +259,7 @@ void FileImpl::copyToImpl(const std::string& path) const
int n;
while ((n = read(sd, buffer.begin(), blockSize)) > 0)
{
if (write(dd, buffer.begin(), n) != n)
if (write(dd, buffer.begin(), n) != n)
handleLastErrorImpl(path);
}
if (n < 0)
@ -285,6 +285,12 @@ void FileImpl::renameToImpl(const std::string& path)
}
void FileImpl::linkToImpl(const std::string& path, int type) const
{
throw Poco::NotImplementedException("File::linkTo() is not available on this platform");
}
void FileImpl::removeImpl()
{
poco_assert (!_path.empty());
@ -301,7 +307,7 @@ void FileImpl::removeImpl()
bool FileImpl::createFileImpl()
{
poco_assert (!_path.empty());
int n = open(_path.c_str(), O_WRONLY | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
if (n != -1)
{
@ -322,7 +328,7 @@ bool FileImpl::createDirectoryImpl()
if (existsImpl() && isDirectoryImpl())
return false;
if (mkdir(_path.c_str()) != 0)
if (mkdir(_path.c_str()) != 0)
handleLastErrorImpl(_path);
return true;
}

25
Foundation/src/File_WIN32.cpp
View File

@ -163,10 +163,16 @@ bool FileImpl::isDirectoryImpl() const
bool FileImpl::isLinkImpl() const
{
return false;
poco_assert (!_path.empty());
DWORD attr = GetFileAttributes(_upath.c_str());
if (attr == INVALID_FILE_ATTRIBUTES)
handleLastErrorImpl(_path);
return (attr & FILE_ATTRIBUTE_DIRECTORY) == 0 && (attr & FILE_ATTRIBUTE_REPARSE_POINT) != 0;
}
bool FileImpl::isDeviceImpl() const
{
return
@ -300,6 +306,23 @@ void FileImpl::renameToImpl(const std::string& path)
}
void FileImpl::linkToImpl(const std::string& path, int type) const
{
poco_assert (!_path.empty());
if (type == 0)
{
if (CreateHardLinkA(path.c_str(), _path.c_str(), NULL) == 0)
handleLastErrorImpl(_path);
}
else
{
if (CreateSymbolicLinkA(path.c_str(), _path.c_str(), (isDirectoryImpl() ? SYMBOLIC_LINK_FLAG_DIRECTORY : 0) | SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE) == 0)
handleLastErrorImpl(_path);
}
}
void FileImpl::removeImpl()
{
poco_assert (!_path.empty());

27
Foundation/src/File_WIN32U.cpp
View File

@ -167,7 +167,12 @@ bool FileImpl::isDirectoryImpl() const
bool FileImpl::isLinkImpl() const
{
return false;
poco_assert (!_path.empty());
DWORD attr = GetFileAttributesW(_upath.c_str());
if (attr == INVALID_FILE_ATTRIBUTES)
handleLastErrorImpl(_path);
return (attr & FILE_ATTRIBUTE_DIRECTORY) == 0 && (attr & FILE_ATTRIBUTE_REPARSE_POINT) != 0;
}
@ -308,6 +313,26 @@ void FileImpl::renameToImpl(const std::string& path)
}
void FileImpl::linkToImpl(const std::string& path, int type) const
{
poco_assert (!_path.empty());
std::wstring upath;
convertPath(path, upath);
if (type == 0)
{
if (CreateHardLinkW(upath.c_str(), _upath.c_str(), NULL) == 0)
handleLastErrorImpl(_path);
}
else
{
if (CreateSymbolicLinkW(upath.c_str(), _upath.c_str(), (isDirectoryImpl() ? SYMBOLIC_LINK_FLAG_DIRECTORY : 0) | SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE) == 0)
handleLastErrorImpl(_path);
}
}
void FileImpl::removeImpl()
{
poco_assert (!_path.empty());

6
Foundation/src/File_WINCE.cpp
View File

@ -299,6 +299,12 @@ void FileImpl::renameToImpl(const std::string& path)
}
void FileImpl::linkToImpl(const std::string& path, int type) const
{
throw Poco::NotImplementedException("File::linkTo() is not available on this platform");
}
void FileImpl::removeImpl()
{
poco_assert (!_path.empty());