diff options
Diffstat (limited to '')
| -rw-r--r-- | src/pybind/rgw/CMakeLists.txt | 6 | ||||
| -rw-r--r-- | src/pybind/rgw/MANIFEST.in | 1 | ||||
| -rw-r--r-- | src/pybind/rgw/c_rgw.pxd | 137 | ||||
| -rw-r--r-- | src/pybind/rgw/cstat.pxd | 20 | ||||
| -rw-r--r-- | src/pybind/rgw/mock_rgw.pxi | 156 | ||||
| -rw-r--r-- | src/pybind/rgw/rgw.pyx | 544 | ||||
| -rwxr-xr-x | src/pybind/rgw/setup.py | 213 |
7 files changed, 1077 insertions, 0 deletions
diff --git a/src/pybind/rgw/CMakeLists.txt b/src/pybind/rgw/CMakeLists.txt new file mode 100644 index 000000000..5b1a955c5 --- /dev/null +++ b/src/pybind/rgw/CMakeLists.txt @@ -0,0 +1,6 @@ +distutils_add_cython_module(cython${PYTHON_VERSION}_rgw + rgw + ${CMAKE_CURRENT_SOURCE_DIR}/rgw.pyx) +add_dependencies(cython${PYTHON_VERSION}_rgw rgw) +distutils_install_cython_module(cython${PYTHON_VERSION}_rgw + ${PYTHON_VERSION}) diff --git a/src/pybind/rgw/MANIFEST.in b/src/pybind/rgw/MANIFEST.in new file mode 100644 index 000000000..330f3fd19 --- /dev/null +++ b/src/pybind/rgw/MANIFEST.in @@ -0,0 +1 @@ +include rgw.pyx diff --git a/src/pybind/rgw/c_rgw.pxd b/src/pybind/rgw/c_rgw.pxd new file mode 100644 index 000000000..988b67b0e --- /dev/null +++ b/src/pybind/rgw/c_rgw.pxd @@ -0,0 +1,137 @@ +# cython: embedsignature=True + +from libc.stdint cimport * +from libcpp cimport bool +from cstat cimport stat + + +cdef extern from "rados/librgw.h" nogil: + ctypedef void* librgw_t + + int librgw_create(librgw_t *rgw, int argc, char **argv) + void librgw_shutdown(librgw_t rgw) + + +cdef extern from "rados/rgw_file.h" nogil: + enum: + RGW_FS_TYPE_FILE + RGW_FS_TYPE_DIRECTORY + + RGW_LOOKUP_FLAG_CREATE + + RGW_SETATTR_MODE + RGW_SETATTR_UID + RGW_SETATTR_GID + RGW_SETATTR_MTIME + RGW_SETATTR_ATIME + RGW_SETATTR_SIZE + RGW_SETATTR_CTIME + + RGW_READDIR_FLAG_NONE + RGW_READDIR_FLAG_DOTDOT + + RGW_OPEN_FLAG_CREATE + RGW_OPEN_FLAG_V3 # ops have v3 semantics + RGW_OPEN_FLAG_STATELESS # alias it + + RGW_CLOSE_FLAG_RELE + + + ctypedef void *rgw_fh_hk + cdef struct rgw_file_handle: + pass + + cdef struct rgw_fs: + librgw_t rgw + void *fs_private + void *root_fh + + # mount info hypothetical--emulate Unix, support at least UUID-length fsid + cdef struct rgw_statvfs: + uint64_t f_bsize # file system block size + uint64_t f_frsize # fragment size + uint64_t f_blocks # size of fs in f_frsize units + uint64_t f_bfree # free blocks + uint64_t f_bavail # free blocks for unprivileged users + uint64_t f_files # inodes + uint64_t f_ffree # free inodes + uint64_t f_favail # free inodes for unprivileged users + uint64_t f_fsid[2] # /* file system ID + uint64_t f_flag # mount flags + uint64_t f_namemax # maximum filename length + + void rgwfile_version(int *major, int *minor, int *extra) + + int rgw_lookup(rgw_fs *fs, + rgw_file_handle *parent_fh, const char *path, + rgw_file_handle **fh, stat* st, uint32_t st_mask, + uint32_t flags) + + int rgw_lookup_handle(rgw_fs *fs, rgw_fh_hk *fh_hk, + rgw_file_handle **fh, uint32_t flags) + + int rgw_fh_rele(rgw_fs *fs, rgw_file_handle *fh, + uint32_t flags) + + int rgw_mount(librgw_t rgw, const char *uid, const char *key, + const char *secret, rgw_fs **fs, uint32_t flags) + + int rgw_umount(rgw_fs *fs, uint32_t flags) + + int rgw_statfs(rgw_fs *fs, rgw_file_handle *parent_fh, + rgw_statvfs *vfs_st, uint32_t flags) + + int rgw_create(rgw_fs *fs, rgw_file_handle *parent_fh, + const char *name, stat *st, uint32_t mask, + rgw_file_handle **fh, uint32_t posix_flags, + uint32_t flags) + + int rgw_mkdir(rgw_fs *fs, + rgw_file_handle *parent_fh, + const char *name, stat *st, uint32_t mask, + rgw_file_handle **fh, uint32_t flags) + + int rgw_rename(rgw_fs *fs, + rgw_file_handle *olddir, const char* old_name, + rgw_file_handle *newdir, const char* new_name, + uint32_t flags) + + int rgw_unlink(rgw_fs *fs, + rgw_file_handle *parent_fh, const char* path, + uint32_t flags) + + int rgw_readdir(rgw_fs *fs, + rgw_file_handle *parent_fh, uint64_t *offset, + bool (*cb)(const char *name, void *arg, uint64_t offset, stat *st, uint32_t st_mask, uint32_t flags) nogil except? -9000, + void *cb_arg, bool *eof, uint32_t flags) except? -9000 + + int rgw_getattr(rgw_fs *fs, + rgw_file_handle *fh, stat *st, + uint32_t flags) + + int rgw_setattr(rgw_fs *fs, rgw_file_handle *fh, stat *st, + uint32_t mask, uint32_t flags) + + int rgw_truncate(rgw_fs *fs, rgw_file_handle *fh, uint64_t size, uint32_t flags) + + int rgw_open(rgw_fs *fs, rgw_file_handle *parent_fh, + uint32_t posix_flags, uint32_t flags) + + int rgw_close(rgw_fs *fs, rgw_file_handle *fh, + uint32_t flags) + + int rgw_read(rgw_fs *fs, + rgw_file_handle *fh, uint64_t offset, + size_t length, size_t *bytes_read, void *buffer, + uint32_t flags) + + int rgw_write(rgw_fs *fs, + rgw_file_handle *fh, uint64_t offset, + size_t length, size_t *bytes_written, void *buffer, + uint32_t flags) + + int rgw_fsync(rgw_fs *fs, rgw_file_handle *fh, + uint32_t flags) + + int rgw_commit(rgw_fs *fs, rgw_file_handle *fh, + uint64_t offset, uint64_t length, uint32_t flags) diff --git a/src/pybind/rgw/cstat.pxd b/src/pybind/rgw/cstat.pxd new file mode 100644 index 000000000..f7da7c6de --- /dev/null +++ b/src/pybind/rgw/cstat.pxd @@ -0,0 +1,20 @@ +cdef extern from "time.h": + ctypedef long int time_t + + +cdef extern from "sys/stat.h": + cdef struct stat: + unsigned long st_dev + unsigned long st_ino + unsigned long st_nlink + unsigned int st_mode + unsigned int st_uid + unsigned int st_gid + int __pad0 + unsigned long st_rdev + long int st_size + long int st_blksize + long int st_blocks + time_t st_atime + time_t st_mtime + time_t st_ctime diff --git a/src/pybind/rgw/mock_rgw.pxi b/src/pybind/rgw/mock_rgw.pxi new file mode 100644 index 000000000..ca893a5bb --- /dev/null +++ b/src/pybind/rgw/mock_rgw.pxi @@ -0,0 +1,156 @@ +# cython: embedsignature=True + +cdef nogil: + ctypedef void* librgw_t + + int librgw_create(librgw_t *rgw, int argc, char **argv): + pass + void librgw_shutdown(librgw_t rgw): + pass + + +cdef nogil: + enum: + RGW_FS_TYPE_FILE + RGW_FS_TYPE_DIRECTORY + + RGW_LOOKUP_FLAG_CREATE + + RGW_SETATTR_MODE + RGW_SETATTR_UID + RGW_SETATTR_GID + RGW_SETATTR_MTIME + RGW_SETATTR_ATIME + RGW_SETATTR_SIZE + RGW_SETATTR_CTIME + + RGW_READDIR_FLAG_NONE + RGW_READDIR_FLAG_DOTDOT + + RGW_OPEN_FLAG_CREATE + RGW_OPEN_FLAG_V3 # ops have v3 semantics + RGW_OPEN_FLAG_STATELESS # alias it + + RGW_CLOSE_FLAG_RELE + + ctypedef void *rgw_fh_hk + cdef struct rgw_file_handle: + rgw_fh_hk fh_hk + void *fs_private + int fh_type + + cdef struct rgw_fs: + librgw_t rgw + void *fs_private + void *root_fh + + # mount info hypothetical--emulate Unix, support at least UUID-length fsid + cdef struct rgw_statvfs: + uint64_t f_bsize # file system block size + uint64_t f_frsize # fragment size + uint64_t f_blocks # size of fs in f_frsize units + uint64_t f_bfree # free blocks + uint64_t f_bavail # free blocks for unprivileged users + uint64_t f_files # inodes + uint64_t f_ffree # free inodes + uint64_t f_favail # free inodes for unprivileged users + uint64_t f_fsid[2] # /* file system ID + uint64_t f_flag # mount flags + uint64_t f_namemax # maximum filename length + + void rgwfile_version(int *major, int *minor, int *extra): + pass + + int rgw_lookup(rgw_fs *fs, + rgw_file_handle *parent_fh, const char *path, + rgw_file_handle **fh, stat* st, uint32_t st_mask, + uint32_t flags): + pass + + int rgw_lookup_handle(rgw_fs *fs, rgw_fh_hk *fh_hk, + rgw_file_handle **fh, uint32_t flags): + pass + + int rgw_fh_rele(rgw_fs *fs, rgw_file_handle *fh, + uint32_t flags): + pass + + int rgw_mount(librgw_t rgw, const char *uid, const char *key, + const char *secret, rgw_fs **fs, uint32_t flags): + pass + + int rgw_umount(rgw_fs *fs, uint32_t flags): + pass + + int rgw_statfs(rgw_fs *fs, rgw_file_handle *parent_fh, + rgw_statvfs *vfs_st, uint32_t flags): + pass + + int rgw_create(rgw_fs *fs, rgw_file_handle *parent_fh, + const char *name, stat *st, uint32_t mask, + rgw_file_handle **fh, uint32_t posix_flags, + uint32_t flags): + pass + + int rgw_mkdir(rgw_fs *fs, + rgw_file_handle *parent_fh, + const char *name, stat *st, uint32_t mask, + rgw_file_handle **fh, uint32_t flags): + pass + + int rgw_rename(rgw_fs *fs, + rgw_file_handle *olddir, const char* old_name, + rgw_file_handle *newdir, const char* new_name, + uint32_t flags): + pass + + int rgw_unlink(rgw_fs *fs, + rgw_file_handle *parent_fh, const char* path, + uint32_t flags): + pass + + int rgw_readdir(rgw_fs *fs, + rgw_file_handle *parent_fh, uint64_t *offset, + bint (*cb)(const char *name, void *arg, uint64_t offset, stat *st, uint32_t st_mask, uint32_t flags) nogil except? -9000, + void *cb_arg, bint *eof, uint32_t flags) except? -9000: + pass + + int rgw_getattr(rgw_fs *fs, + rgw_file_handle *fh, stat *st, + uint32_t flags): + pass + + int rgw_setattr(rgw_fs *fs, rgw_file_handle *fh, stat *st, + uint32_t mask, uint32_t flags): + pass + + int rgw_truncate(rgw_fs *fs, rgw_file_handle *fh, uint64_t size, uint32_t flags): + pass + + int rgw_open(rgw_fs *fs, rgw_file_handle *parent_fh, + uint32_t posix_flags, uint32_t flags): + pass + + int rgw_close(rgw_fs *fs, rgw_file_handle *fh, + uint32_t flags): + pass + + int rgw_read(rgw_fs *fs, + rgw_file_handle *fh, uint64_t offset, + size_t length, size_t *bytes_read, void *buffer, + uint32_t flags): + pass + + int rgw_write(rgw_fs *fs, + rgw_file_handle *fh, uint64_t offset, + size_t length, size_t *bytes_written, void *buffer, + uint32_t flags): + pass + + int rgw_fsync(rgw_fs *fs, rgw_file_handle *fh, + uint32_t flags): + pass + + int rgw_commit(rgw_fs *fs, rgw_file_handle *fh, + uint64_t offset, uint64_t length, uint32_t flags): + pass diff --git a/src/pybind/rgw/rgw.pyx b/src/pybind/rgw/rgw.pyx new file mode 100644 index 000000000..9bbcdfff5 --- /dev/null +++ b/src/pybind/rgw/rgw.pyx @@ -0,0 +1,544 @@ +""" +This module is a thin wrapper around rgw_file. +""" + + +from cpython cimport PyObject, ref, exc, array +from libc.stdint cimport * +from libc.stdlib cimport malloc, realloc, free +from cstat cimport stat + +IF BUILD_DOC: + include "mock_rgw.pxi" +ELSE: + from c_rgw cimport * + cimport rados + +from collections import namedtuple +from datetime import datetime +import errno + + +cdef extern from "Python.h": + # These are in cpython/string.pxd, but use "object" types instead of + # PyObject*, which invokes assumptions in cpython that we need to + # legitimately break to implement zero-copy string buffers in Image.read(). + # This is valid use of the Python API and documented as a special case. + PyObject *PyBytes_FromStringAndSize(char *v, Py_ssize_t len) except NULL + char* PyBytes_AsString(PyObject *string) except NULL + int _PyBytes_Resize(PyObject **string, Py_ssize_t newsize) except -1 + void PyEval_InitThreads() + + +class Error(Exception): + pass + + +class OSError(Error): + """ `OSError` class, derived from `Error` """ + def __init__(self, errno, strerror): + self.errno = errno + self.strerror = strerror + + def __str__(self): + return '[Errno {0}] {1}'.format(self.errno, self.strerror) + + +class PermissionError(OSError): + pass + + +class ObjectNotFound(OSError): + pass + + +class NoData(Error): + pass + + +class ObjectExists(Error): + pass + + +class IOError(OSError): + pass + + +class NoSpace(Error): + pass + + +class InvalidValue(Error): + pass + + +class OperationNotSupported(Error): + pass + + +class IncompleteWriteError(Error): + pass + + +class LibCephFSStateError(Error): + pass + +class WouldBlock(Error): + pass + +class OutOfRange(Error): + pass + +IF UNAME_SYSNAME == "FreeBSD": + cdef errno_to_exception = { + errno.EPERM : PermissionError, + errno.ENOENT : ObjectNotFound, + errno.EIO : IOError, + errno.ENOSPC : NoSpace, + errno.EEXIST : ObjectExists, + errno.ENOATTR : NoData, + errno.EINVAL : InvalidValue, + errno.EOPNOTSUPP : OperationNotSupported, + errno.ERANGE : OutOfRange, + errno.EWOULDBLOCK: WouldBlock, + } +ELSE: + cdef errno_to_exception = { + errno.EPERM : PermissionError, + errno.ENOENT : ObjectNotFound, + errno.EIO : IOError, + errno.ENOSPC : NoSpace, + errno.EEXIST : ObjectExists, + errno.ENODATA : NoData, + errno.EINVAL : InvalidValue, + errno.EOPNOTSUPP : OperationNotSupported, + errno.ERANGE : OutOfRange, + errno.EWOULDBLOCK: WouldBlock, + } + + +cdef class FileHandle(object): + cdef rgw_file_handle *handler + + +StatResult = namedtuple('StatResult', + ["st_dev", "st_ino", "st_mode", "st_nlink", "st_uid", + "st_gid", "st_rdev", "st_size", "st_blksize", + "st_blocks", "st_atime", "st_mtime", "st_ctime"]) + + +def cstr(val, name, encoding="utf-8", opt=False): + """ + Create a byte string from a Python string + + :param basestring val: Python string + :param str name: Name of the string parameter, for exceptions + :param str encoding: Encoding to use + :param bool opt: If True, None is allowed + :rtype: bytes + :raises: :class:`InvalidArgument` + """ + if opt and val is None: + return None + if isinstance(val, bytes): + return val + elif isinstance(val, str): + return val.encode(encoding) + else: + raise TypeError('%s must be a string' % name) + + +cdef make_ex(ret, msg): + """ + Translate a librados return code into an exception. + + :param ret: the return code + :type ret: int + :param msg: the error message to use + :type msg: str + :returns: a subclass of :class:`Error` + """ + ret = abs(ret) + if ret in errno_to_exception: + return errno_to_exception[ret](ret, msg) + else: + return Error(msg + (": error code %d" % ret)) + + +cdef bint readdir_cb(const char *name, void *arg, uint64_t offset, stat *st, uint32_t st_mask, uint32_t flags) \ +except? -9000 with gil: + if exc.PyErr_Occurred(): + return False + (<object>arg)(name, offset, flags) + return True + + +class LibCephFSStateError(Error): + pass + + +cdef class LibRGWFS(object): + """librgwfs python wrapper""" + + cdef public object state + cdef public object uid + cdef public object key + cdef public object secret + cdef librgw_t cluster + cdef rgw_fs *fs + + def require_state(self, *args): + if self.state in args: + return + raise LibCephFSStateError("You cannot perform that operation on a " + "RGWFS object in state %s." % (self.state)) + + def __cinit__(self, uid, key, secret): + PyEval_InitThreads() + self.state = "umounted" + ret = librgw_create(&self.cluster, 0, NULL) + if ret != 0: + raise make_ex(ret, "error calling librgw_create") + self.uid = cstr(uid, "uid") + self.key = cstr(key, "key") + self.secret = cstr(secret, "secret") + + def shutdown(self): + """ + Unmount and destroy the ceph mount handle. + """ + if self.state in ["mounted"]: + with nogil: + ret = rgw_umount(self.fs, 0); + if ret != 0: + raise make_ex(ret, "error calling rgw_unmount") + self.state = "shutdown" + + def __enter__(self): + self.mount() + return self + + def __exit__(self, type_, value, traceback): + self.shutdown() + + def __dealloc__(self): + self.shutdown() + + def version(self): + """ + Get the version number of the ``librgwfile`` C library. + + :returns: a tuple of ``(major, minor, extra)`` components of the + libcephfs version + """ + cdef: + int major = 0 + int minor = 0 + int extra = 0 + with nogil: + rgwfile_version(&major, &minor, &extra) + return (major, minor, extra) + + def mount(self): + self.require_state("umounted") + cdef: + char *_uid = self.uid + char *_key = self.key + char *_secret = self.secret + with nogil: + ret = rgw_mount(self.cluster, <const char*>_uid, <const char*>_key, + <const char*>_secret, &self.fs, 0) + if ret != 0: + raise make_ex(ret, "error calling rgw_mount") + self.state = "mounted" + dir_handler = FileHandle() + dir_handler.handler = <rgw_file_handle*>self.fs.root_fh + return dir_handler + + def unmount(self): + self.require_state("mounted") + with nogil: + ret = rgw_umount(self.fs, 0) + if ret != 0: + raise make_ex(ret, "error calling rgw_umount") + self.state = "umounted" + + def statfs(self): + self.require_state("mounted") + cdef: + rgw_statvfs statbuf + + with nogil: + ret = rgw_statfs(self.fs, <rgw_file_handle*>self.fs.root_fh, &statbuf, 0) + if ret < 0: + raise make_ex(ret, "statfs failed") + cdef uint64_t[:] fsid = statbuf.f_fsid + return {'f_bsize': statbuf.f_bsize, + 'f_frsize': statbuf.f_frsize, + 'f_blocks': statbuf.f_blocks, + 'f_bfree': statbuf.f_bfree, + 'f_bavail': statbuf.f_bavail, + 'f_files': statbuf.f_files, + 'f_ffree': statbuf.f_ffree, + 'f_favail': statbuf.f_favail, + 'f_fsid': fsid, + 'f_flag': statbuf.f_flag, + 'f_namemax': statbuf.f_namemax} + + + def create(self, FileHandle dir_handler, filename, flags = 0): + self.require_state("mounted") + + if not isinstance(flags, int): + raise TypeError("flags must be an integer") + + filename = cstr(filename, 'filename') + + cdef: + rgw_file_handle *_dir_handler = <rgw_file_handle*>dir_handler.handler + rgw_file_handle *_file_handler + int _flags = flags + char* _filename = filename + stat statbuf + + with nogil: + ret = rgw_create(self.fs, _dir_handler, _filename, &statbuf, 0, + &_file_handler, 0, _flags) + if ret < 0: + raise make_ex(ret, "error in create '%s'" % filename) + with nogil: + ret = rgw_open(self.fs, _file_handler, 0, _flags) + if ret < 0: + raise make_ex(ret, "error in open '%s'" % filename) + + file_handler = FileHandle() + file_handler.handler = _file_handler + return file_handler + + def mkdir(self, FileHandle dir_handler, dirname, flags = 0): + self.require_state("mounted") + dirname = cstr(dirname, 'dirname') + new_dir_handler = FileHandle() + cdef: + rgw_file_handle *_dir_handler = <rgw_file_handle*>dir_handler.handler + rgw_file_handle *_new_dir_handler + char* _dirname = dirname + int _flags = flags + stat statbuf + with nogil: + ret = rgw_mkdir(self.fs, _dir_handler, _dirname, &statbuf, + 0, &_new_dir_handler, _flags) + if ret < 0: + raise make_ex(ret, "error in mkdir '%s'" % dirname) + new_dir_handler.handler = _new_dir_handler + return new_dir_handler + + def rename(self, FileHandle src_handler, src_name, FileHandle dst_handler, dst_name, flags = 0): + self.require_state("mounted") + + src_name = cstr(src_name, 'src_name') + dst_name = cstr(dst_name, 'dst_name') + + cdef: + rgw_file_handle *_src_dir_handler = <rgw_file_handle*>src_handler.handler + rgw_file_handle *_dst_dir_handler = <rgw_file_handle*>dst_handler.handler + char* _src_name = src_name + char* _dst_name = dst_name + int _flags = flags + + with nogil: + ret = rgw_rename(self.fs, _src_dir_handler, _src_name, + _dst_dir_handler, _dst_name, _flags) + if ret < 0: + raise make_ex(ret, "error in rename '%s' to '%s'" % (src_name, + dst_name)) + return ret + + def unlink(self, FileHandle handler, name, flags = 0): + self.require_state("mounted") + name = cstr(name, 'name') + cdef: + rgw_file_handle *_handler = <rgw_file_handle*>handler.handler + int _flags = flags + char* _name = name + with nogil: + ret = rgw_unlink(self.fs, _handler, _name, _flags) + if ret < 0: + raise make_ex(ret, "error in unlink") + return ret + + def readdir(self, FileHandle dir_handler, iterate_cb, offset, flags = 0): + self.require_state("mounted") + + cdef: + rgw_file_handle *_dir_handler = <rgw_file_handle*>dir_handler.handler + uint64_t _offset = offset + bint _eof + uint32_t _flags = flags + with nogil: + ret = rgw_readdir(self.fs, _dir_handler, &_offset, &readdir_cb, + <void *>iterate_cb, &_eof, _flags) + if ret < 0: + raise make_ex(ret, "error in readdir") + + return (_offset, _eof) + + def fstat(self, FileHandle file_handler): + self.require_state("mounted") + + cdef: + rgw_file_handle *_file_handler = <rgw_file_handle*>file_handler.handler + stat statbuf + + with nogil: + ret = rgw_getattr(self.fs, _file_handler, &statbuf, 0) + if ret < 0: + raise make_ex(ret, "error in getattr") + return StatResult(st_dev=statbuf.st_dev, st_ino=statbuf.st_ino, + st_mode=statbuf.st_mode, st_nlink=statbuf.st_nlink, + st_uid=statbuf.st_uid, st_gid=statbuf.st_gid, + st_rdev=statbuf.st_rdev, st_size=statbuf.st_size, + st_blksize=statbuf.st_blksize, + st_blocks=statbuf.st_blocks, + st_atime=datetime.fromtimestamp(statbuf.st_atime), + st_mtime=datetime.fromtimestamp(statbuf.st_mtime), + st_ctime=datetime.fromtimestamp(statbuf.st_ctime)) + + def opendir(self, FileHandle dir_handler, dirname, flags = 0): + self.require_state("mounted") + + if not isinstance(flags, int): + raise TypeError("flags must be an integer") + + dirname = cstr(dirname, 'dirname') + + cdef: + rgw_file_handle *_dir_handler = <rgw_file_handle*>dir_handler.handler + rgw_file_handle *_file_handler + int _flags = flags + char* _dirname = dirname + stat st + uint32_t st_mask = 0 + + with nogil: + ret = rgw_lookup(self.fs, _dir_handler, _dirname, + &_file_handler, &st, st_mask, _flags) + if ret < 0: + raise make_ex(ret, "error in open '%s'" % dirname) + + file_handler = FileHandle() + file_handler.handler = _file_handler + return file_handler + + def open(self, FileHandle dir_handler, filename, flags = 0): + self.require_state("mounted") + + if not isinstance(flags, int): + raise TypeError("flags must be an integer") + + filename = cstr(filename, 'filename') + + cdef: + rgw_file_handle *_dir_handler = <rgw_file_handle*>dir_handler.handler + rgw_file_handle *_file_handler + int _flags = flags + char* _filename = filename + stat st + uint32_t st_mask = 0 + + with nogil: + ret = rgw_lookup(self.fs, _dir_handler, _filename, + &_file_handler, &st, st_mask, _flags) + if ret < 0: + raise make_ex(ret, "error in open '%s'" % filename) + with nogil: + ret = rgw_open(self.fs, _file_handler, 0, _flags) + if ret < 0: + raise make_ex(ret, "error in open '%s'" % filename) + + file_handler = FileHandle() + file_handler.handler = _file_handler + return file_handler + + def close(self, FileHandle file_handler, flags = 0): + self.require_state("mounted") + cdef: + rgw_file_handle *_file_handler = <rgw_file_handle*>file_handler.handler + int _flags = flags + with nogil: + ret = rgw_close(self.fs, _file_handler, _flags) + if ret < 0: + raise make_ex(ret, "error in close") + + def read(self, FileHandle file_handler, offset, l, flags = 0): + self.require_state("mounted") + if not isinstance(offset, int): + raise TypeError('offset must be an int') + if not isinstance(l, int): + raise TypeError('l must be an int') + cdef: + rgw_file_handle *_file_handler = <rgw_file_handle*>file_handler.handler + int64_t _offset = offset + size_t _length = l + size_t _got + int _flags = flags + + char *ret_buf + PyObject* ret_s = NULL + + ret_s = PyBytes_FromStringAndSize(NULL, _length) + try: + ret_buf = PyBytes_AsString(ret_s) + with nogil: + ret = rgw_read(self.fs, _file_handler, _offset, _length, + &_got, ret_buf, _flags) + if ret < 0: + raise make_ex(ret, "error in read") + + if _got < _length: + _PyBytes_Resize(&ret_s, _got) + + return <object>ret_s + finally: + # We DECREF unconditionally: the cast to object above will have + # INCREFed if necessary. This also takes care of exceptions, + # including if _PyString_Resize fails (that will free the string + # itself and set ret_s to NULL, hence XDECREF). + ref.Py_XDECREF(ret_s) + + + def write(self, FileHandle file_handler, offset, buf, flags = 0): + self.require_state("mounted") + if not isinstance(buf, bytes): + raise TypeError('buf must be a bytes') + if not isinstance(offset, int): + raise TypeError('offset must be an int') + + cdef: + rgw_file_handle *_file_handler = <rgw_file_handle*>file_handler.handler + char *_data = buf + int64_t _offset = offset + + size_t length = len(buf) + int _flags = flags + size_t _written + + with nogil: + ret = rgw_write(self.fs, _file_handler, _offset, length, &_written, + _data, _flags) + if ret < 0: + raise make_ex(ret, "error in write") + return ret + + + def fsync(self, FileHandle handler, flags = 0): + self.require_state("mounted") + + cdef: + rgw_file_handle *_file_handler = <rgw_file_handle*>handler.handler + int _flags = flags + with nogil: + ret = rgw_fsync(self.fs, _file_handler, _flags) + + if ret < 0: + raise make_ex(ret, "fsync failed") diff --git a/src/pybind/rgw/setup.py b/src/pybind/rgw/setup.py new file mode 100755 index 000000000..ed45399d3 --- /dev/null +++ b/src/pybind/rgw/setup.py @@ -0,0 +1,213 @@ +import pkgutil +if not pkgutil.find_loader('setuptools'): + from distutils.core import setup + from distutils.extension import Extension +else: + from setuptools import setup + from setuptools.extension import Extension +import distutils.core + +import os +import shutil +import sys +import tempfile +import textwrap +from distutils.ccompiler import new_compiler +from distutils.errors import CompileError, LinkError +from itertools import filterfalse, takewhile +import distutils.sysconfig + + +def filter_unsupported_flags(compiler, flags): + args = takewhile(lambda argv: not argv.startswith('-'), [compiler] + flags) + if any('clang' in arg for arg in args): + return list(filterfalse(lambda f: + f in ('-mcet', + '-fstack-clash-protection', + '-fno-var-tracking-assignments', + '-Wno-deprecated-register', + '-Wno-gnu-designator') or + f.startswith('-fcf-protection'), + flags)) + else: + return flags + + +def monkey_with_compiler(customize): + def patched(compiler): + customize(compiler) + if compiler.compiler_type != 'unix': + return + compiler.compiler[1:] = \ + filter_unsupported_flags(compiler.compiler[0], + compiler.compiler[1:]) + compiler.compiler_so[1:] = \ + filter_unsupported_flags(compiler.compiler_so[0], + compiler.compiler_so[1:]) + return patched + + +distutils.sysconfig.customize_compiler = \ + monkey_with_compiler(distutils.sysconfig.customize_compiler) + +# PEP 440 versioning of the RGW package on PyPI +# Bump this version, after every changeset + +__version__ = '2.0.0' + + +def get_python_flags(libs): + py_libs = sum((libs.split() for libs in + distutils.sysconfig.get_config_vars('LIBS', 'SYSLIBS')), []) + ldflags = list(filterfalse(lambda lib: lib.startswith('-l'), py_libs)) + py_libs = [lib.replace('-l', '') for lib in + filter(lambda lib: lib.startswith('-l'), py_libs)] + compiler = new_compiler() + distutils.sysconfig.customize_compiler(compiler) + return dict( + include_dirs=[distutils.sysconfig.get_python_inc()], + library_dirs=distutils.sysconfig.get_config_vars('LIBDIR', 'LIBPL'), + libraries=libs + py_libs, + extra_compile_args=filter_unsupported_flags( + compiler.compiler[0], + compiler.compiler[1:] + distutils.sysconfig.get_config_var('CFLAGS').split()), + extra_link_args=(distutils.sysconfig.get_config_var('LDFLAGS').split() + + ldflags)) + + +def check_sanity(): + """ + Test if development headers and library for rgw is available by compiling a dummy C program. + """ + CEPH_SRC_DIR = os.path.join( + os.path.dirname(os.path.abspath(__file__)), + '..', + '..' + ) + + tmp_dir = tempfile.mkdtemp(dir=os.environ.get('TMPDIR', os.path.dirname(__file__))) + tmp_file = os.path.join(tmp_dir, 'rgw_dummy.c') + + with open(tmp_file, 'w') as fp: + dummy_prog = textwrap.dedent(""" + #include <stddef.h> + #include "rados/rgw_file.h" + + int main(void) { + rgwfile_version(NULL, NULL, NULL); + return 0; + } + """) + fp.write(dummy_prog) + + compiler = new_compiler() + distutils.sysconfig.customize_compiler(compiler) + + if 'CEPH_LIBDIR' in os.environ: + # The setup.py has been invoked by a top-level Ceph make. + # Set the appropriate CFLAGS and LDFLAGS + compiler.set_include_dirs([os.path.join(CEPH_SRC_DIR, 'include')]) + compiler.set_library_dirs([os.environ.get('CEPH_LIBDIR')]) + try: + compiler.define_macro('_FILE_OFFSET_BITS', '64') + + link_objects = compiler.compile( + sources=[tmp_file], + output_dir=tmp_dir, + ) + + compiler.link_executable( + objects=link_objects, + output_progname=os.path.join(tmp_dir, 'rgw_dummy'), + libraries=['rgw', 'rados'], + output_dir=tmp_dir, + ) + + except CompileError: + print('\nCompile Error: RGW development headers not found', file=sys.stderr) + return False + except LinkError: + print('\nLink Error: RGW library not found', file=sys.stderr) + return False + else: + return True + finally: + shutil.rmtree(tmp_dir) + + +if 'BUILD_DOC' in os.environ or 'READTHEDOCS' in os.environ: + ext_args = {} + cython_constants = dict(BUILD_DOC=True) + cythonize_args = dict(compile_time_env=cython_constants) +elif check_sanity(): + ext_args = get_python_flags(['rados', 'rgw']) + cython_constants = dict(BUILD_DOC=False) + include_path = [os.path.join(os.path.dirname(__file__), "..", "rados")] + cythonize_args = dict(compile_time_env=cython_constants, + include_path=include_path) +else: + sys.exit(1) + +cmdclass = {} +try: + from Cython.Build import cythonize + from Cython.Distutils import build_ext + + cmdclass = {'build_ext': build_ext} +except ImportError: + print("WARNING: Cython is not installed.") + + if not os.path.isfile('rgw.c'): + print('ERROR: Cannot find Cythonized file rgw.c', file=sys.stderr) + sys.exit(1) + else: + def cythonize(x, **kwargs): + return x + + source = "rgw.c" +else: + source = "rgw.pyx" + +# Disable cythonification if we're not really building anything +if (len(sys.argv) >= 2 and + any(i in sys.argv[1:] for i in ('--help', 'clean', 'egg_info', '--version') + )): + def cythonize(x, **kwargs): + return x + +setup( + name='rgw', + version=__version__, + description="Python bindings for the RGW library", + long_description=( + "This package contains Python bindings for interacting with the " + "RGW library. RGW is a Object Storage Gateway " + "that uses a Ceph Storage Cluster to store its data. The " + "Ceph Object Storage support S3 and Swift APIs, " + "and file operations." + ), + url='https://github.com/ceph/ceph/tree/master/src/pybind/rgw', + license='LGPLv2+', + platforms='Linux', + ext_modules=cythonize( + [ + Extension( + "rgw", + [source], + **ext_args + ) + ], + compiler_directives={'language_level': sys.version_info.major}, + build_dir=os.environ.get("CYTHON_BUILD_DIR", None), + **cythonize_args + ), + classifiers=[ + 'Intended Audience :: Developers', + 'Intended Audience :: System Administrators', + 'License :: OSI Approved :: GNU Lesser General Public License v2 or later (LGPLv2+)', + 'Operating System :: POSIX :: Linux', + 'Programming Language :: Cython', + 'Programming Language :: Python :: 3', + ], + cmdclass=cmdclass, +) |