fileAttrs = {
"CacheEnabled" : "true",
"ContentType" : "text/plain",
"ReplicationParameters" : replicationParams
}
celestefs.create(path, attrs=fileAttrs)
#
# Repeatedly ingest and fill the file, read it back to compare it with the
# original, and truncate it. (If profiling is enabled, each repetition
# will append information to timingsFile.)
#
remainingRepetitions = repetitions
while repetitions <= 0 or remainingRepetitions > 0:
pCat = Popen(["/bin/cat", localFile], stdout=PIPE)
pWrite = celestefs.pwrite(path, 0, stdin=pCat.stdout)
pWrite.communicate()
pRead = celestefs.pread(path, 0, -1, stdout=PIPE)
pCmp = Popen(["/usr/bin/cmp", localFile, "-"], stdin=pRead.stdout,
stdout=PIPE)
pCmp.communicate()[0]
if pCmp.returncode != 0:
print "%s does not compare identical to %s; exiting" % \
(path, localFile)
celestefs.setLength(path, 0)
remainingRepetitions = remainingRepetitions - 1
#
pRead = celestefs.pread(celesteFilePath2, 0, -1, stdout=PIPE)
pCmp = Popen(["/usr/bin/cmp", inFileName, "-"], stdin=pRead.stdout,
stdout=PIPE)
print pCmp.communicate()[0]
#
# Write the file's contents if necessary.
#
statOutput = celestefs.stat(celesteFilePath, options=["-s"])
fileSize = int(statOutput.split()[1])
print >> stderr, "file size: %d" % fileSize
if fileSize == 0:
pCat = Popen(["/bin/cat", inFileName], stdout=PIPE)
pWrite = celestefs.pwrite(celesteFilePath, 0, stdin=pCat.stdout,
bufferSize=134217728)
pWrite.communicate()
statOutput = celestefs.stat(celesteFilePath, options=["-s"])
fileSize = int(statOutput.split()[1])
print >> stderr, "file size now: %d" % fileSize
#
# Read the file and compare it to the local file we used to initialize
# it.
#
pRead = celestefs.pread(celesteFilePath, 0, -1, stdout=PIPE)
pCmp = Popen(["/usr/bin/cmp", inFileName, "-"], stdin=pRead.stdout,
stdout=PIPE)
print pCmp.communicate()[0]
# Create or truncate the test file, as approriate.
#
if not c.fileExists(filename):
createAttrs = {
# "BlockSize" : "3"
# "BlockSize" : "16"
}
c.create(filename, contentType="text/plain", attrs=createAttrs)
else:
c.setLength(filename, 0)
#
# Write a sequence of characters that give clues to their offsets in the
# file.
#
p = c.pwrite(filename)
p.stdin.write("0123456789012345678901234567890123456789")
p.communicate()
#
# See what we have so far.
#
p = c.pread(filename)
output = p.communicate()[0]
print '%s\'s contents: "%s"' % (filename, output)
#
# Now for the test proper. Overwrite some of the data in the middle with
# something else.
#
p = c.pwrite(filename, offset=5)