mirror of https://github.com/trapexit/mergerfs.git
Antonio SJ Musumeci
8 years ago
3 changed files with 169 additions and 111 deletions
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/* |
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Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link> |
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|
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Permission to use, copy, modify, and/or distribute this software for any |
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purpose with or without fee is hereby granted, provided that the above |
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copyright notice and this permission notice appear in all copies. |
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|
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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|
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#include <errno.h> |
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#include <fcntl.h> |
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#include <linux/fs.h> |
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#include <sys/ioctl.h> |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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#include <unistd.h> |
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|
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#include <string> |
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|
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using std::string; |
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|
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namespace fs |
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{ |
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namespace attr |
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{ |
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static |
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int |
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get_fs_ioc_flags(const int fd, |
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int &flags) |
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{ |
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return ::ioctl(fd,FS_IOC_GETFLAGS,&flags); |
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} |
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|
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static |
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int |
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get_fs_ioc_flags(const string &file, |
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int &flags) |
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{ |
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int fd; |
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int rv; |
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const int openflags = O_RDONLY|O_NONBLOCK; |
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|
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fd = ::open(file.c_str(),openflags); |
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if(fd == -1) |
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return -1; |
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|
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rv = get_fs_ioc_flags(fd,flags); |
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if(rv == -1) |
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{ |
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int error = errno; |
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::close(fd); |
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errno = error; |
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return -1; |
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} |
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|
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return ::close(fd); |
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} |
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|
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static |
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int |
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set_fs_ioc_flags(const int fd, |
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const int flags) |
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{ |
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return ::ioctl(fd,FS_IOC_SETFLAGS,&flags); |
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} |
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|
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static |
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int |
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set_fs_ioc_flags(const string &file, |
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const int flags) |
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{ |
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int fd; |
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int rv; |
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const int openflags = O_RDONLY|O_NONBLOCK; |
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|
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fd = ::open(file.c_str(),openflags); |
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if(fd == -1) |
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return -1; |
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|
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rv = set_fs_ioc_flags(fd,flags); |
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if(rv == -1) |
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{ |
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int error = errno; |
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::close(fd); |
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errno = error; |
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return -1; |
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} |
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|
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return ::close(fd); |
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} |
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|
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int |
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copy(const int fdin, |
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const int fdout) |
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{ |
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int rv; |
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int flags; |
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|
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rv = get_fs_ioc_flags(fdin,flags); |
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if(rv == -1) |
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return -1; |
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return set_fs_ioc_flags(fdout,flags); |
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} |
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|
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int |
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copy(const string &from, |
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const string &to) |
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{ |
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int rv; |
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int flags; |
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|
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rv = get_fs_ioc_flags(from,flags); |
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if(rv == -1) |
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return -1; |
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|
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return set_fs_ioc_flags(to,flags); |
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} |
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} |
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} |
@ -0,0 +1,37 @@ |
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/* |
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Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link> |
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|
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Permission to use, copy, modify, and/or distribute this software for any |
|||
purpose with or without fee is hereby granted, provided that the above |
|||
copyright notice and this permission notice appear in all copies. |
|||
|
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|||
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|||
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|||
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|||
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|||
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|||
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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|
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#include <errno.h> |
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|
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namespace fs |
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{ |
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namespace attr |
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{ |
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int |
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copy(const int fdin, |
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const int fdout) |
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{ |
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return ENOTSUP; |
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} |
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|
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int |
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copy(const string &from, |
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const string &to) |
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{ |
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return ENOTSUP; |
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} |
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} |
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} |
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