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-rw-r--r--xlators/features/glupy/examples/Makefile.am5
-rw-r--r--xlators/features/glupy/examples/debug-trace.py775
-rw-r--r--xlators/features/glupy/examples/helloworld.py19
-rw-r--r--xlators/features/glupy/examples/negative.py91
4 files changed, 890 insertions, 0 deletions
diff --git a/xlators/features/glupy/examples/Makefile.am b/xlators/features/glupy/examples/Makefile.am
new file mode 100644
index 000000000..c26abeaaf
--- /dev/null
+++ b/xlators/features/glupy/examples/Makefile.am
@@ -0,0 +1,5 @@
+xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/features
+
+glupyexamplesdir = $(xlatordir)/glupy
+
+glupyexamples_PYTHON = negative.py helloworld.py debug-trace.py
diff --git a/xlators/features/glupy/examples/debug-trace.py b/xlators/features/glupy/examples/debug-trace.py
new file mode 100644
index 000000000..6eef1b58b
--- /dev/null
+++ b/xlators/features/glupy/examples/debug-trace.py
@@ -0,0 +1,775 @@
+import sys
+import stat
+from uuid import UUID
+from time import strftime, localtime
+from gluster.glupy import *
+
+# This translator was written primarily to test the fop entry point definitions
+# and structure definitions in 'glupy.py'.
+
+# It is similar to the C language debug-trace translator, which logs the
+# arguments passed to the fops and their corresponding cbk functions.
+
+dl.get_id.restype = c_long
+dl.get_id.argtypes = [ POINTER(call_frame_t) ]
+
+dl.get_rootunique.restype = c_uint64
+dl.get_rootunique.argtypes = [ POINTER(call_frame_t) ]
+
+def uuid2str (gfid):
+ return str(UUID(''.join(map("{0:02x}".format, gfid))))
+
+
+def st_mode_from_ia (prot, filetype):
+ st_mode = 0
+ type_bit = 0
+ prot_bit = 0
+
+ if filetype == IA_IFREG:
+ type_bit = stat.S_IFREG
+ elif filetype == IA_IFDIR:
+ type_bit = stat.S_IFDIR
+ elif filetype == IA_IFLNK:
+ type_bit = stat.S_IFLNK
+ elif filetype == IA_IFBLK:
+ type_bit = stat.S_IFBLK
+ elif filetype == IA_IFCHR:
+ type_bit = stat.S_IFCHR
+ elif filetype == IA_IFIFO:
+ type_bit = stat.S_IFIFO
+ elif filetype == IA_IFSOCK:
+ type_bit = stat.S_IFSOCK
+ elif filetype == IA_INVAL:
+ pass
+
+
+ if prot.suid:
+ prot_bit |= stat.S_ISUID
+ if prot.sgid:
+ prot_bit |= stat.S_ISGID
+ if prot.sticky:
+ prot_bit |= stat.S_ISVTX
+
+ if prot.owner.read:
+ prot_bit |= stat.S_IRUSR
+ if prot.owner.write:
+ prot_bit |= stat.S_IWUSR
+ if prot.owner.execn:
+ prot_bit |= stat.S_IXUSR
+
+ if prot.group.read:
+ prot_bit |= stat.S_IRGRP
+ if prot.group.write:
+ prot_bit |= stat.S_IWGRP
+ if prot.group.execn:
+ prot_bit |= stat.S_IXGRP
+
+ if prot.other.read:
+ prot_bit |= stat.S_IROTH
+ if prot.other.write:
+ prot_bit |= stat.S_IWOTH
+ if prot.other.execn:
+ prot_bit |= stat.S_IXOTH
+
+ st_mode = (type_bit | prot_bit)
+
+ return st_mode
+
+
+def trace_stat2str (buf):
+ gfid = uuid2str(buf.contents.ia_gfid)
+ mode = st_mode_from_ia(buf.contents.ia_prot, buf.contents.ia_type)
+ atime_buf = strftime("[%b %d %H:%M:%S]",
+ localtime(buf.contents.ia_atime))
+ mtime_buf = strftime("[%b %d %H:%M:%S]",
+ localtime(buf.contents.ia_mtime))
+ ctime_buf = strftime("[%b %d %H:%M:%S]",
+ localtime(buf.contents.ia_ctime))
+ return ("(gfid={0:s}, ino={1:d}, mode={2:o}, nlink={3:d}, uid ={4:d}, "+
+ "gid ={5:d}, size={6:d}, blocks={7:d}, atime={8:s}, mtime={9:s}, "+
+ "ctime={10:s})").format(gfid, buf.contents.ia_no, mode,
+ buf.contents.ia_nlink,
+ buf.contents.ia_uid,
+ buf.contents.ia_gid,
+ buf.contents.ia_size,
+ buf.contents.ia_blocks,
+ atime_buf, mtime_buf,
+ ctime_buf)
+
+class xlator(Translator):
+
+ def __init__(self, c_this):
+ Translator.__init__(self, c_this)
+ self.gfids = {}
+
+ def lookup_fop(self, frame, this, loc, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.gfid)
+ print("GLUPY TRACE LOOKUP FOP- {0:d}: gfid={1:s}; " +
+ "path={2:s}").format(unique, gfid, loc.contents.path)
+ self.gfids[key] = gfid
+ dl.wind_lookup(frame, POINTER(xlator_t)(), loc, xdata)
+ return 0
+
+ def lookup_cbk(self, frame, cookie, this, op_ret, op_errno,
+ inode, buf, xdata, postparent):
+ unique =dl.get_rootunique(frame)
+ key =dl.get_id(frame)
+ if op_ret == 0:
+ gfid = uuid2str(buf.contents.ia_gfid)
+ statstr = trace_stat2str(buf)
+ postparentstr = trace_stat2str(postparent)
+ print("GLUPY TRACE LOOKUP CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; *buf={3:s}; " +
+ "*postparent={4:s}").format(unique, gfid,
+ op_ret, statstr,
+ postparentstr)
+ else:
+ gfid = self.gfids[key]
+ print("GLUPY TRACE LOOKUP CBK - {0:d}: gfid={1:s};" +
+ " op_ret={2:d}; op_errno={3:d}").format(unique,
+ gfid,
+ op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_lookup(frame, cookie, this, op_ret, op_errno,
+ inode, buf, xdata, postparent)
+ return 0
+
+ def create_fop(self, frame, this, loc, flags, mode, umask, fd,
+ xdata):
+ unique = dl.get_rootunique(frame)
+ gfid = uuid2str(loc.contents.gfid)
+ print("GLUPY TRACE CREATE FOP- {0:d}: gfid={1:s}; path={2:s}; " +
+ "fd={3:s}; flags=0{4:o}; mode=0{5:o}; " +
+ "umask=0{6:o}").format(unique, gfid, loc.contents.path,
+ fd, flags, mode, umask)
+ dl.wind_create(frame, POINTER(xlator_t)(), loc, flags,mode,
+ umask, fd, xdata)
+ return 0
+
+ def create_cbk(self, frame, cookie, this, op_ret, op_errno, fd,
+ inode, buf, preparent, postparent, xdata):
+ unique = dl.get_rootunique(frame)
+ if op_ret >= 0:
+ gfid = uuid2str(inode.contents.gfid)
+ statstr = trace_stat2str(buf)
+ preparentstr = trace_stat2str(preparent)
+ postparentstr = trace_stat2str(postparent)
+ print("GLUPY TRACE CREATE CBK- {0:d}: gfid={1:s};" +
+ " op_ret={2:d}; fd={3:s}; *stbuf={4:s}; " +
+ "*preparent={5:s};" +
+ " *postparent={6:s}").format(unique, gfid, op_ret,
+ fd, statstr,
+ preparentstr,
+ postparentstr)
+ else:
+ print ("GLUPY TRACE CREATE CBK- {0:d}: op_ret={1:d}; " +
+ "op_errno={2:d}").format(unique, op_ret, op_errno)
+ dl.unwind_create(frame, cookie, this, op_ret, op_errno, fd,
+ inode, buf, preparent, postparent, xdata)
+ return 0
+
+ def open_fop(self, frame, this, loc, flags, fd, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE OPEN FOP- {0:d}: gfid={1:s}; path={2:s}; "+
+ "flags={3:d}; fd={4:s}").format(unique, gfid,
+ loc.contents.path, flags,
+ fd)
+ self.gfids[key] = gfid
+ dl.wind_open(frame, POINTER(xlator_t)(), loc, flags, fd, xdata)
+ return 0
+
+ def open_cbk(self, frame, cookie, this, op_ret, op_errno, fd, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE OPEN CBK- {0:d}: gfid={1:s}; op_ret={2:d}; "
+ "op_errno={3:d}; *fd={4:s}").format(unique, gfid,
+ op_ret, op_errno, fd)
+ del self.gfids[key]
+ dl.unwind_open(frame, cookie, this, op_ret, op_errno, fd,
+ xdata)
+ return 0
+
+ def readv_fop(self, frame, this, fd, size, offset, flags, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(fd.contents.inode.contents.gfid)
+ print("GLUPY TRACE READV FOP- {0:d}: gfid={1:s}; "+
+ "fd={2:s}; size ={3:d}; offset={4:d}; " +
+ "flags=0{5:x}").format(unique, gfid, fd, size, offset,
+ flags)
+ self.gfids[key] = gfid
+ dl.wind_readv (frame, POINTER(xlator_t)(), fd, size, offset,
+ flags, xdata)
+ return 0
+
+ def readv_cbk(self, frame, cookie, this, op_ret, op_errno, vector,
+ count, buf, iobref, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ if op_ret >= 0:
+ statstr = trace_stat2str(buf)
+ print("GLUPY TRACE READV CBK- {0:d}: gfid={1:s}, "+
+ "op_ret={2:d}; *buf={3:s};").format(unique, gfid,
+ op_ret,
+ statstr)
+
+ else:
+ print("GLUPY TRACE READV CBK- {0:d}: gfid={1:s}, "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique,
+ gfid,
+ op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_readv (frame, cookie, this, op_ret, op_errno,
+ vector, count, buf, iobref, xdata)
+ return 0
+
+ def writev_fop(self, frame, this, fd, vector, count, offset, flags,
+ iobref, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(fd.contents.inode.contents.gfid)
+ print("GLUPY TRACE WRITEV FOP- {0:d}: gfid={1:s}; " +
+ "fd={2:s}; count={3:d}; offset={4:d}; " +
+ "flags=0{5:x}").format(unique, gfid, fd, count, offset,
+ flags)
+ self.gfids[key] = gfid
+ dl.wind_writev(frame, POINTER(xlator_t)(), fd, vector, count,
+ offset, flags, iobref, xdata)
+ return 0
+
+ def writev_cbk(self, frame, cookie, this, op_ret, op_errno, prebuf,
+ postbuf, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ if op_ret >= 0:
+ preopstr = trace_stat2str(prebuf)
+ postopstr = trace_stat2str(postbuf)
+ print("GLUPY TRACE WRITEV CBK- {0:d}: op_ret={1:d}; " +
+ "*prebuf={2:s}; " +
+ "*postbuf={3:s}").format(unique, op_ret, preopstr,
+ postopstr)
+ else:
+ gfid = self.gfids[key]
+ print("GLUPY TRACE WRITEV CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique,
+ gfid,
+ op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_writev (frame, cookie, this, op_ret, op_errno,
+ prebuf, postbuf, xdata)
+ return 0
+
+ def opendir_fop(self, frame, this, loc, fd, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE OPENDIR FOP- {0:d}: gfid={1:s}; path={2:s}; "+
+ "fd={3:s}").format(unique, gfid, loc.contents.path, fd)
+ self.gfids[key] = gfid
+ dl.wind_opendir(frame, POINTER(xlator_t)(), loc, fd, xdata)
+ return 0
+
+ def opendir_cbk(self, frame, cookie, this, op_ret, op_errno, fd,
+ xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE OPENDIR CBK- {0:d}: gfid={1:s}; op_ret={2:d};"+
+ " op_errno={3:d}; fd={4:s}").format(unique, gfid, op_ret,
+ op_errno, fd)
+ del self.gfids[key]
+ dl.unwind_opendir(frame, cookie, this, op_ret, op_errno,
+ fd, xdata)
+ return 0
+
+ def readdir_fop(self, frame, this, fd, size, offset, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(fd.contents.inode.contents.gfid)
+ print("GLUPY TRACE READDIR FOP- {0:d}: gfid={1:s}; fd={2:s}; " +
+ "size={3:d}; offset={4:d}").format(unique, gfid, fd, size,
+ offset)
+ self.gfids[key] = gfid
+ dl.wind_readdir(frame, POINTER(xlator_t)(), fd, size, offset,
+ xdata)
+ return 0
+
+ def readdir_cbk(self, frame, cookie, this, op_ret, op_errno, buf,
+ xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE READDIR CBK- {0:d}: gfid={1:s}; op_ret={2:d};"+
+ " op_errno={3:d}").format(unique, gfid, op_ret, op_errno)
+ del self.gfids[key]
+ dl.unwind_readdir(frame, cookie, this, op_ret, op_errno, buf,
+ xdata)
+ return 0
+
+ def readdirp_fop(self, frame, this, fd, size, offset, dictionary):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(fd.contents.inode.contents.gfid)
+ print("GLUPY TRACE READDIRP FOP- {0:d}: gfid={1:s}; fd={2:s}; "+
+ " size={3:d}; offset={4:d}").format(unique, gfid, fd, size,
+ offset)
+ self.gfids[key] = gfid
+ dl.wind_readdirp(frame, POINTER(xlator_t)(), fd, size, offset,
+ dictionary)
+ return 0
+
+ def readdirp_cbk(self, frame, cookie, this, op_ret, op_errno, buf,
+ xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE READDIRP CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique, gfid,
+ op_ret, op_errno)
+ del self.gfids[key]
+ dl.unwind_readdirp(frame, cookie, this, op_ret, op_errno, buf,
+ xdata)
+ return 0
+
+ def mkdir_fop(self, frame, this, loc, mode, umask, xdata):
+ unique = dl.get_rootunique(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE MKDIR FOP- {0:d}: gfid={1:s}; path={2:s}; " +
+ "mode={3:d}; umask=0{4:o}").format(unique, gfid,
+ loc.contents.path, mode,
+ umask)
+ dl.wind_mkdir(frame, POINTER(xlator_t)(), loc, mode, umask,
+ xdata)
+ return 0
+
+ def mkdir_cbk(self, frame, cookie, this, op_ret, op_errno, inode, buf,
+ preparent, postparent, xdata):
+ unique = dl.get_rootunique(frame)
+ if op_ret == 0:
+ gfid = uuid2str(inode.contents.gfid)
+ statstr = trace_stat2str(buf)
+ preparentstr = trace_stat2str(preparent)
+ postparentstr = trace_stat2str(postparent)
+ print("GLUPY TRACE MKDIR CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; *stbuf={3:s}; *prebuf={4:s}; "+
+ "*postbuf={5:s} ").format(unique, gfid, op_ret,
+ statstr,
+ preparentstr,
+ postparentstr)
+ else:
+ print("GLUPY TRACE MKDIR CBK- {0:d}: op_ret={1:d}; "+
+ "op_errno={2:d}").format(unique, op_ret, op_errno)
+ dl.unwind_mkdir(frame, cookie, this, op_ret, op_errno, inode,
+ buf, preparent, postparent, xdata)
+ return 0
+
+ def rmdir_fop(self, frame, this, loc, flags, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE RMDIR FOP- {0:d}: gfid={1:s}; path={2:s}; "+
+ "flags={3:d}").format(unique, gfid, loc.contents.path,
+ flags)
+ self.gfids[key] = gfid
+ dl.wind_rmdir(frame, POINTER(xlator_t)(), loc, flags, xdata)
+ return 0
+
+ def rmdir_cbk(self, frame, cookie, this, op_ret, op_errno, preparent,
+ postparent, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ if op_ret == 0:
+ preparentstr = trace_stat2str(preparent)
+ postparentstr = trace_stat2str(postparent)
+ print("GLUPY TRACE RMDIR CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; *prebuf={3:s}; "+
+ "*postbuf={4:s}").format(unique, gfid, op_ret,
+ preparentstr,
+ postparentstr)
+ else:
+ print("GLUPY TRACE RMDIR CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique,
+ gfid,
+ op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_rmdir(frame, cookie, this, op_ret, op_errno,
+ preparent, postparent, xdata)
+ return 0
+
+ def stat_fop(self, frame, this, loc, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE STAT FOP- {0:d}: gfid={1:s}; " +
+ " path={2:s}").format(unique, gfid, loc.contents.path)
+ self.gfids[key] = gfid
+ dl.wind_stat(frame, POINTER(xlator_t)(), loc, xdata)
+ return 0
+
+ def stat_cbk(self, frame, cookie, this, op_ret, op_errno, buf,
+ xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ if op_ret == 0:
+ statstr = trace_stat2str(buf)
+ print("GLUPY TRACE STAT CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; *buf={3:s};").format(unique,
+ gfid,
+ op_ret,
+ statstr)
+ else:
+ print("GLUPY TRACE STAT CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique,
+ gfid,
+ op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_stat(frame, cookie, this, op_ret, op_errno,
+ buf, xdata)
+ return 0
+
+ def fstat_fop(self, frame, this, fd, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(fd.contents.inode.contents.gfid)
+ print("GLUPY TRACE FSTAT FOP- {0:d}: gfid={1:s}; " +
+ "fd={2:s}").format(unique, gfid, fd)
+ self.gfids[key] = gfid
+ dl.wind_fstat(frame, POINTER(xlator_t)(), fd, xdata)
+ return 0
+
+ def fstat_cbk(self, frame, cookie, this, op_ret, op_errno, buf,
+ xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ if op_ret == 0:
+ statstr = trace_stat2str(buf)
+ print("GLUPY TRACE FSTAT CBK- {0:d}: gfid={1:s} "+
+ " op_ret={2:d}; *buf={3:s}").format(unique,
+ gfid,
+ op_ret,
+ statstr)
+ else:
+ print("GLUPY TRACE FSTAT CBK- {0:d}: gfid={1:s} "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique.
+ gfid,
+ op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_fstat(frame, cookie, this, op_ret, op_errno,
+ buf, xdata)
+ return 0
+
+ def statfs_fop(self, frame, this, loc, xdata):
+ unique = dl.get_rootunique(frame)
+ if loc.contents.inode:
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ else:
+ gfid = "0"
+ print("GLUPY TRACE STATFS FOP- {0:d}: gfid={1:s}; "+
+ "path={2:s}").format(unique, gfid, loc.contents.path)
+ dl.wind_statfs(frame, POINTER(xlator_t)(), loc, xdata)
+ return 0
+
+ def statfs_cbk(self, frame, cookie, this, op_ret, op_errno, buf,
+ xdata):
+ unique = dl.get_rootunique(frame)
+ if op_ret == 0:
+ #TBD: print buf (pointer to an iovec type object)
+ print("GLUPY TRACE STATFS CBK {0:d}: "+
+ "op_ret={1:d}").format(unique, op_ret)
+ else:
+ print("GLUPY TRACE STATFS CBK- {0:d}"+
+ "op_ret={1:d}; op_errno={2:d}").format(unique,
+ op_ret,
+ op_errno)
+ dl.unwind_statfs(frame, cookie, this, op_ret, op_errno,
+ buf, xdata)
+ return 0
+
+ def getxattr_fop(self, frame, this, loc, name, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE GETXATTR FOP- {0:d}: gfid={1:s}; path={2:s};"+
+ " name={3:s}").format(unique, gfid, loc.contents.path,
+ name)
+ self.gfids[key]=gfid
+ dl.wind_getxattr(frame, POINTER(xlator_t)(), loc, name, xdata)
+ return 0
+
+ def getxattr_cbk(self, frame, cookie, this, op_ret, op_errno,
+ dictionary, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE GETXATTR CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d}; "+
+ " dictionary={4:s}").format(unique, gfid, op_ret, op_errno,
+ dictionary)
+ del self.gfids[key]
+ dl.unwind_getxattr(frame, cookie, this, op_ret, op_errno,
+ dictionary, xdata)
+ return 0
+
+ def fgetxattr_fop(self, frame, this, fd, name, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(fd.contents.inode.contents.gfid)
+ print("GLUPY TRACE FGETXATTR FOP- {0:d}: gfid={1:s}; fd={2:s}; "+
+ "name={3:s}").format(unique, gfid, fd, name)
+ self.gfids[key] = gfid
+ dl.wind_fgetxattr(frame, POINTER(xlator_t)(), fd, name, xdata)
+ return 0
+
+ def fgetxattr_cbk(self, frame, cookie, this, op_ret, op_errno,
+ dictionary, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE FGETXATTR CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d};"+
+ " dictionary={4:s}").format(unique, gfid, op_ret,
+ op_errno, dictionary)
+ del self.gfids[key]
+ dl.unwind_fgetxattr(frame, cookie, this, op_ret, op_errno,
+ dictionary, xdata)
+ return 0
+
+ def setxattr_fop(self, frame, this, loc, dictionary, flags, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE SETXATTR FOP- {0:d}: gfid={1:s}; path={2:s};"+
+ " flags={3:d}").format(unique, gfid, loc.contents.path,
+ flags)
+ self.gfids[key] = gfid
+ dl.wind_setxattr(frame, POINTER(xlator_t)(), loc, dictionary,
+ flags, xdata)
+ return 0
+
+ def setxattr_cbk(self, frame, cookie, this, op_ret, op_errno, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE SETXATTR CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique, gfid,
+ op_ret, op_errno)
+ del self.gfids[key]
+ dl.unwind_setxattr(frame, cookie, this, op_ret, op_errno,
+ xdata)
+ return 0
+
+ def fsetxattr_fop(self, frame, this, fd, dictionary, flags, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(fd.contents.inode.contents.gfid)
+ print("GLUPY TRACE FSETXATTR FOP- {0:d}: gfid={1:s}; fd={2:p}; "+
+ "flags={3:d}").format(unique, gfid, fd, flags)
+ self.gfids[key] = gfid
+ dl.wind_fsetxattr(frame, POINTER(xlator_t)(), fd, dictionary,
+ flags, xdata)
+ return 0
+
+ def fsetxattr_cbk(self, frame, cookie, this, op_ret, op_errno, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE FSETXATTR CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique, gfid,
+ op_ret, op_errno)
+ del self.gfids[key]
+ dl.unwind_fsetxattr(frame, cookie, this, op_ret, op_errno,
+ xdata)
+ return 0
+
+ def removexattr_fop(self, frame, this, loc, name, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE REMOVEXATTR FOP- {0:d}: gfid={1:s}; "+
+ "path={2:s}; name={3:s}").format(unique, gfid,
+ loc.contents.path,
+ name)
+ self.gfids[key] = gfid
+ dl.wind_removexattr(frame, POINTER(xlator_t)(), loc, name,
+ xdata)
+ return 0
+
+ def removexattr_cbk(self, frame, cookie, this, op_ret, op_errno,
+ xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ print("GLUPY TRACE REMOVEXATTR CBK- {0:d}: gfid={1:s} "+
+ " op_ret={2:d}; op_errno={3:d}").format(unique, gfid,
+ op_ret, op_errno)
+ del self.gfids[key]
+ dl.unwind_removexattr(frame, cookie, this, op_ret, op_errno,
+ xdata)
+ return 0
+
+ def link_fop(self, frame, this, oldloc, newloc, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ if (newloc.contents.inode):
+ newgfid = uuid2str(newloc.contents.inode.contents.gfid)
+ else:
+ newgfid = "0"
+ oldgfid = uuid2str(oldloc.contents.inode.contents.gfid)
+ print("GLUPY TRACE LINK FOP-{0:d}: oldgfid={1:s}; oldpath={2:s};"+
+ "newgfid={3:s};"+
+ "newpath={4:s}").format(unique, oldgfid,
+ oldloc.contents.path,
+ newgfid,
+ newloc.contents.path)
+ self.gfids[key] = oldgfid
+ dl.wind_link(frame, POINTER(xlator_t)(), oldloc, newloc,
+ xdata)
+ return 0
+
+ def link_cbk(self, frame, cookie, this, op_ret, op_errno, inode, buf,
+ preparent, postparent, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ if op_ret == 0:
+ statstr = trace_stat2str(buf)
+ preparentstr = trace_stat2str(preparent)
+ postparentstr = trace_stat2str(postparent)
+ print("GLUPY TRACE LINK CBK- {0:d}: op_ret={1:d} "+
+ "*stbuf={2:s}; *prebuf={3:s}; "+
+ "*postbuf={4:s} ").format(unique, op_ret, statstr,
+ preparentstr,
+ postparentstr)
+ else:
+ print("GLUPY TRACE LINK CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; "+
+ "op_errno={3:d}").format(unique, gfid,
+ op_ret, op_errno)
+ del self.gfids[key]
+ dl.unwind_link(frame, cookie, this, op_ret, op_errno, inode,
+ buf, preparent, postparent, xdata)
+ return 0
+
+ def unlink_fop(self, frame, this, loc, xflag, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE UNLINK FOP- {0:d}; gfid={1:s}; path={2:s}; "+
+ "flag={3:d}").format(unique, gfid, loc.contents.path,
+ xflag)
+ self.gfids[key] = gfid
+ dl.wind_unlink(frame, POINTER(xlator_t)(), loc, xflag,
+ xdata)
+ return 0
+
+ def unlink_cbk(self, frame, cookie, this, op_ret, op_errno,
+ preparent, postparent, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ if op_ret == 0:
+ preparentstr = trace_stat2str(preparent)
+ postparentstr = trace_stat2str(postparent)
+ print("GLUPY TRACE UNLINK CBK- {0:d}: gfid ={1:s}; "+
+ "op_ret={2:d}; *prebuf={3:s}; "+
+ "*postbuf={4:s} ").format(unique, gfid, op_ret,
+ preparentstr,
+ postparentstr)
+ else:
+ print("GLUPY TRACE UNLINK CBK: {0:d}: gfid ={1:s}; "+
+ "op_ret={2:d}; "+
+ "op_errno={3:d}").format(unique, gfid, op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_unlink(frame, cookie, this, op_ret, op_errno,
+ preparent, postparent, xdata)
+ return 0
+
+ def readlink_fop(self, frame, this, loc, size, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE READLINK FOP- {0:d}: gfid={1:s}; path={2:s};"+
+ " size={3:d}").format(unique, gfid, loc.contents.path,
+ size)
+ self.gfids[key] = gfid
+ dl.wind_readlink(frame, POINTER(xlator_t)(), loc, size,
+ xdata)
+ return 0
+
+ def readlink_cbk(self, frame, cookie, this, op_ret, op_errno,
+ buf, stbuf, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ if op_ret == 0:
+ statstr = trace_stat2str(stbuf)
+ print("GLUPY TRACE READLINK CBK- {0:d}: gfid={1:s} "+
+ " op_ret={2:d}; op_errno={3:d}; *prebuf={4:s}; "+
+ "*postbuf={5:s} ").format(unique, gfid,
+ op_ret, op_errno,
+ buf, statstr)
+ else:
+ print("GLUPY TRACE READLINK CBK- {0:d}: gfid={1:s} "+
+ " op_ret={2:d}; op_errno={3:d}").format(unique,
+ gfid,
+ op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_readlink(frame, cookie, this, op_ret, op_errno, buf,
+ stbuf, xdata)
+ return 0
+
+ def symlink_fop(self, frame, this, linkpath, loc, umask, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = uuid2str(loc.contents.inode.contents.gfid)
+ print("GLUPY TRACE SYMLINK FOP- {0:d}: gfid={1:s}; "+
+ "linkpath={2:s}; path={3:s};"+
+ "umask=0{4:o}").format(unique, gfid, linkpath,
+ loc.contents.path, umask)
+ self.gfids[key] = gfid
+ dl.wind_symlink(frame, POINTER(xlator_t)(), linkpath, loc,
+ umask, xdata)
+ return 0
+
+ def symlink_cbk(self, frame, cookie, this, op_ret, op_errno,
+ inode, buf, preparent, postparent, xdata):
+ unique = dl.get_rootunique(frame)
+ key = dl.get_id(frame)
+ gfid = self.gfids[key]
+ if op_ret == 0:
+ statstr = trace_stat2str(buf)
+ preparentstr = trace_stat2str(preparent)
+ postparentstr = trace_stat2str(postparent)
+ print("GLUPY TRACE SYMLINK CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; *stbuf={3:s}; *preparent={4:s}; "+
+ "*postparent={5:s}").format(unique, gfid,
+ op_ret, statstr,
+ preparentstr,
+ postparentstr)
+ else:
+ print("GLUPY TRACE SYMLINK CBK- {0:d}: gfid={1:s}; "+
+ "op_ret={2:d}; op_errno={3:d}").format(unique,
+ gfid,
+ op_ret,
+ op_errno)
+ del self.gfids[key]
+ dl.unwind_symlink(frame, cookie, this, op_ret, op_errno,
+ inode, buf, preparent, postparent, xdata)
+ return 0
diff --git a/xlators/features/glupy/examples/helloworld.py b/xlators/features/glupy/examples/helloworld.py
new file mode 100644
index 000000000..b565a4e5b
--- /dev/null
+++ b/xlators/features/glupy/examples/helloworld.py
@@ -0,0 +1,19 @@
+import sys
+from gluster.glupy import *
+
+class xlator (Translator):
+
+ def __init__(self, c_this):
+ Translator.__init__(self, c_this)
+
+ def lookup_fop(self, frame, this, loc, xdata):
+ print "Python xlator: Hello!"
+ dl.wind_lookup(frame, POINTER(xlator_t)(), loc, xdata)
+ return 0
+
+ def lookup_cbk(self, frame, cookie, this, op_ret, op_errno, inode, buf,
+ xdata, postparent):
+ print "Python xlator: Hello again!"
+ dl.unwind_lookup(frame, cookie, this, op_ret, op_errno, inode, buf,
+ xdata, postparent)
+ return 0
diff --git a/xlators/features/glupy/examples/negative.py b/xlators/features/glupy/examples/negative.py
new file mode 100644
index 000000000..e7a4fc07c
--- /dev/null
+++ b/xlators/features/glupy/examples/negative.py
@@ -0,0 +1,91 @@
+import sys
+from uuid import UUID
+from gluster.glupy import *
+
+# Negative-lookup-caching example. If a file wasn't there the last time we
+# looked, it's probably still not there. This translator keeps track of
+# those failed lookups for us, and returns ENOENT without needing to pass the
+# call any further for repeated requests.
+
+# If we were doing this for real, we'd need separate caches for each xlator
+# instance. The easiest way to do this would be to have xlator.__init__
+# "register" each instance in a module-global dict, with the key as the C
+# translator address and the value as the xlator object itself. For testing
+# and teaching, it's sufficient just to have one cache. The keys are parent
+# GFIDs, and the entries are lists of names within that parent that we know
+# don't exist.
+cache = {}
+
+# TBD: we need a better way of handling per-request data (frame->local in C).
+dl.get_id.restype = c_long
+dl.get_id.argtypes = [ POINTER(call_frame_t) ]
+
+def uuid2str (gfid):
+ return str(UUID(''.join(map("{0:02x}".format, gfid))))
+
+class xlator (Translator):
+
+ def __init__ (self, c_this):
+ self.requests = {}
+ Translator.__init__(self,c_this)
+
+ def lookup_fop (self, frame, this, loc, xdata):
+ pargfid = uuid2str(loc.contents.pargfid)
+ print "lookup FOP: %s:%s" % (pargfid, loc.contents.name)
+ # Check the cache.
+ if cache.has_key(pargfid):
+ if loc.contents.name in cache[pargfid]:
+ print "short-circuiting for %s:%s" % (pargfid,
+ loc.contents.name)
+ dl.unwind_lookup(frame,0,this,-1,2,None,None,None,None)
+ return 0
+ key = dl.get_id(frame)
+ self.requests[key] = (pargfid, loc.contents.name[:])
+ # TBD: get real child xl from init, pass it here
+ dl.wind_lookup(frame,POINTER(xlator_t)(),loc,xdata)
+ return 0
+
+ def lookup_cbk (self, frame, cookie, this, op_ret, op_errno, inode, buf,
+ xdata, postparent):
+ print "lookup CBK: %d (%d)" % (op_ret, op_errno)
+ key = dl.get_id(frame)
+ pargfid, name = self.requests[key]
+ # Update the cache.
+ if op_ret == 0:
+ print "found %s, removing from cache" % name
+ if cache.has_key(pargfid):
+ cache[pargfid].discard(name)
+ elif op_errno == 2: # ENOENT
+ print "failed to find %s, adding to cache" % name
+ if cache.has_key(pargfid):
+ cache[pargfid].add(name)
+ else:
+ cache[pargfid] = set([name])
+ del self.requests[key]
+ dl.unwind_lookup(frame,cookie,this,op_ret,op_errno,
+ inode,buf,xdata,postparent)
+ return 0
+
+ def create_fop (self, frame, this, loc, flags, mode, umask, fd, xdata):
+ pargfid = uuid2str(loc.contents.pargfid)
+ print "create FOP: %s:%s" % (pargfid, loc.contents.name)
+ key = dl.get_id(frame)
+ self.requests[key] = (pargfid, loc.contents.name[:])
+ # TBD: get real child xl from init, pass it here
+ dl.wind_create(frame,POINTER(xlator_t)(),loc,flags,mode,umask,fd,xdata)
+ return 0
+
+ def create_cbk (self, frame, cookie, this, op_ret, op_errno, fd, inode,
+ buf, preparent, postparent, xdata):
+ print "create CBK: %d (%d)" % (op_ret, op_errno)
+ key = dl.get_id(frame)
+ pargfid, name = self.requests[key]
+ # Update the cache.
+ if op_ret == 0:
+ print "created %s, removing from cache" % name
+ if cache.has_key(pargfid):
+ cache[pargfid].discard(name)
+ del self.requests[key]
+ dl.unwind_create(frame,cookie,this,op_ret,op_errno,fd,inode,buf,
+ preparent,postparent,xdata)
+ return 0