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authorJesse Jaggars <jjaggars@redhat.com>2012-02-28 12:22:11 -0600
committerJesse Jaggars <jjaggars@redhat.com>2012-02-29 16:38:33 -0600
commit4b9412ce0f18da79b71d3abbce343848dfa3a434 (patch)
treecdbc602c525afd230321e0610c56166904b6b1e7 /worker
parenta0c94dff75fb0ab26e003885379ef6ddd51ca4f0 (diff)
downloadsos-4b9412ce0f18da79b71d3abbce343848dfa3a434.tar.gz
Removing many unused bits
Diffstat (limited to 'worker')
-rw-r--r--worker/specs100
-rw-r--r--worker/worker.py150
2 files changed, 0 insertions, 250 deletions
diff --git a/worker/specs b/worker/specs
deleted file mode 100644
index 0d1b7dd1..00000000
--- a/worker/specs
+++ /dev/null
@@ -1,100 +0,0 @@
-==============
-gatherer specs
-==============
-
-WORK IN PROGRESS
-
-/When a command is expected, the line "#X#" is printed, where X is the number of
-/the request, starting a 0 and incremented after each processed request.
-[test_incrementing_counter]
-
-/Requests are spanned on multiple lines. The first line is the command, the
-/following lines are parameters (one parameter per line unless stated otherwise).
-[statement]
-
-/Requests are all blocking. As they are read from stdin using readline(),
-/they can be buffered in stdin.
-[test_queuecommands]
-
-/When the number of parameters or returns is variable, it should be indicated
-/first.
-/When a parameter or returned value is not one line of printable characters,
-/its length as returned by len() should be indicated first.
-[statement]
-
-/When gatherer is expected to write in a file, its parent directory should exist
-/and it will be opened with the "w" flag (unless stated otherwise).
-[statement]
-
-/No timeout handling should be implemented in gatherer.
-[statement]
-
-SIGINT should stop the current request parsing or execution,
-write '#X# INTERRUPTED' to stderr where X is the number of the request,
-then continue the normal flow of execution including incrementing the request
-number.
-
-/stderr is only used:
-/- by Python to display exceptions;
-/- to print "ALIVE" when SIGUSR1 is received or after a "ping" request;
-/- to print "UNKNOWN COMMAND" when a command is unknown;
-/- to print "INTERRUPTED #X#" when a command is interrupted with SIGINT.
-[statement(easy to prove wrong, hard to prove right)]
-
-Requests
---------
-
-/Command: "noop"
-/Params:
-/- None
-/Action:
-/- None
-/Returns:
-/- Nothing
-[test_basic_noop]
-
-/Command: "ping"
-/Params:
-/- None
-/Action:
-/- Prints "ALIVE" on stderr
-/Returns:
-/- Nothing
-[test_basic_ping NEED(stderr is being used)]
-
-/Command: "exit"
-/Params:
-/- None
-/Action:
-/- The gatherer process returns 0
-/Returns:
-/- Nothing
-[test_exit]
-
-/Command: "glob"
-/Params:
-/- The globbing pattern
-/Action:
-/- Performs a glob.glob()
-/Returns:
-/- On the first line, a number of results, n
-/- On the following n lines, filenames, line by line
-[test_basic_glob, test_empty_glob]
-
-Command: "exec"
-Params:
-- The command to send to a shell
-Action:
-- Executes the command in a shell using subprocess.Popen
-Returns:
-- The return code of the command
-- The length of its stdout output as return by len(), in decimal.
-- Its stdout output, followed by a trailing '\n'
-- The length of its stderr output as return by len(), in decimal.
-- Its stderr output, followed by a trailing '\n'
-
-Command: "cp"
--- to be defined after staring at the current sosreport code.
-
-Command: "globcp"
--- to be defined after staring at the current sosreport code.
diff --git a/worker/worker.py b/worker/worker.py
deleted file mode 100644
index e9977019..00000000
--- a/worker/worker.py
+++ /dev/null
@@ -1,150 +0,0 @@
-#!/usr/bin/env python
-
-class Request:
- Commands = {}
-
- @staticmethod
- def Register(name):
- def decorate(cls):
- Request.Commands[name] = cls
- return cls
- return decorate
-
- @staticmethod
- def ReadCommand(shell):
- cmd = shell.read_line().strip()
- request = Request.Commands[cmd](shell)
- return request
-
- def __init__(self, shell):
- self.shell = shell
-
- def read_params(self):
- pass
-
- def execute(self):
- raise NotImplementedError()
-
-
-@Request.Register("noop")
-class NoopRequest(Request):
-
- def execute(self):
- pass
-
-@Request.Register("ping")
-class PingRequest(Request):
-
- def execute(self):
- self.shell.status("ALIVE")
-
-
-@Request.Register("exit")
-class ExitRequest(Request):
-
- def execute(self):
- self.shell.exit()
-
-
-@Request.Register("glob")
-class GlobRequest(Request):
-
- def read_params(self):
- self.pattern = self.shell.read_line()
-
- def execute(self):
- from glob import glob
- results = glob(self.pattern)
- self.shell.write("%i\n" % len(results))
- for result in results:
- self.shell.write(result+"\n")
-
-
-@Request.Register("exec")
-class ExecRequest(Request):
-
- def read_params(self):
- self.cmd = self.shell.read_line()
-
- def execute(self):
- from subprocess import Popen, PIPE
- proc = Popen(self.cmd, shell=True, stdout=PIPE, stderr=PIPE, bufsize=-1)
- stdout, stderr = proc.communicate()
- self.shell.write("%i\n" % proc.returncode)
- self.shell.write_blob(stdout)
- self.shell.write_blob(stderr)
-
-class Shell:
- def __init__(self, input_stream, output_stream, status_stream,
- bork_action = None):
- self.__input_stream__ = input_stream
- self.__output_stream__ = output_stream
- self.__status_stream__ = status_stream
- self.__bork_action__ = bork_action or self.exit
- self.__exit__ = False
- self.__req_counter__ = 0
-
- def loop(self):
- while self.__exit__ == False:
- self.show_prompt()
- try: request = Request.ReadCommand(self)
- except KeyboardInterrupt:
- self.exit()
- except KeyError:
- self.status("UNKNOWN COMMAND");
- self.bork()
- else:
- try: request.read_params()
- except KeyboardInterrupt:
- pass
- else:
- self.__req_counter__ += 1
- try:
- request.execute()
- except KeyboardInterrupt:
- self.status("INTERRUPTED");
-
- def exit(self):
- self.__exit__ = True
-
- def bork(self):
- self.__bork_action__()
-
- def show_prompt(self):
- self.write("#%i#\n" % self.__req_counter__)
-
- def status(self, str):
- print >> self.__status_stream__, str
-
- def write(self, msg):
- self.__output_stream__.write(msg)
-
- def write_blob(self, blob):
- self.write("%i\n" % len(blob))
- self.write(str(blob)+"\n")
-
- def read_line(self):
- while True:
- try:
- return self.__input_stream__.readline().strip()
- except IOError:
- pass
-
- def read_blob(self, length):
- try:
- blob = self.__input_stream__.read(length)
- assert self.__input_stream__.read(1) == "\n"
- except:
- raise IOError()
- else:
- return blob
-
-if __name__ == "__main__":
- from sys import stdin, stdout, stderr, exit
- from signal import signal, SIGUSR1
- def handler(signum, frame):
- print >> stderr, "ALIVE"
- signal(SIGUSR1, handler)
- def bork():
- exit(-1)
- Shell(stdin, stdout, stderr, bork_action = bork).loop()