Revision 307149a8
| b/lib/jqueue.py | ||
|---|---|---|
| 37 | 37 |
class _QueuedOpCode(object): |
| 38 | 38 |
"""Encasulates an opcode object. |
| 39 | 39 |
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Access must be synchronized by using an external lock.
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Access is synchronized by the '_lock' attribute.
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|
| 41 | 41 |
|
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""" |
| 43 | 43 |
def __init__(self, op): |
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self.input = op |
| 45 | 45 |
self.status = constants.OP_STATUS_QUEUED |
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self.result = None |
| 47 |
self._lock = threading.Lock() |
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| 48 |
|
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@utils.LockedMethod |
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def SetStatus(self, status, result): |
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"""Update the opcode status and result. |
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""" |
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self.status = status |
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self.result = result |
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@utils.LockedMethod |
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def GetStatus(self): |
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"""Get the opcode status. |
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""" |
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return self.status |
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@utils.LockedMethod |
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def GetResult(self): |
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"""Get the opcode result. |
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""" |
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return self.result |
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| 47 | 70 |
|
| 48 | 71 |
|
| 49 | 72 |
class _QueuedJob(object): |
| ... | ... | |
| 64 | 87 |
# to use it. |
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self._ops = [_QueuedOpCode(op) for op in ops] |
| 66 | 89 |
|
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def _GetStatusUnlocked(self):
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def GetStatus(self):
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status = constants.JOB_STATUS_QUEUED |
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|
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all_success = True |
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for op in self._ops: |
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if op.status == constants.OP_STATUS_SUCCESS: |
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op_status = op.GetStatus() |
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if op_status == constants.OP_STATUS_SUCCESS: |
|
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continue |
| 74 | 98 |
|
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all_success = False |
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|
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if op.status == constants.OP_STATUS_QUEUED:
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|
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if op_status == constants.OP_STATUS_QUEUED:
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pass |
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elif op.status == constants.OP_STATUS_ERROR:
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elif op_status == constants.OP_STATUS_ERROR:
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| 80 | 104 |
status = constants.JOB_STATUS_ERROR |
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elif op.status == constants.OP_STATUS_RUNNING:
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elif op_status == constants.OP_STATUS_RUNNING:
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status = constants.JOB_STATUS_RUNNING |
| 83 | 107 |
|
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if all_success: |
| ... | ... | |
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|
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return status |
| 88 | 112 |
|
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def GetStatus(self): |
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self._lock.acquire() |
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try: |
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return self._GetStatusUnlocked() |
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finally: |
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self._lock.release() |
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|
|
| 96 | 113 |
def Run(self, proc): |
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"""Job executor. |
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|
| ... | ... | |
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count = len(self._ops) |
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for idx, op in enumerate(self._ops): |
| 109 | 126 |
try: |
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self._lock.acquire() |
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try: |
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logging.debug("Op %s/%s: Starting %s", idx + 1, count, op)
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op.status = constants.OP_STATUS_RUNNING |
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finally: |
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self._lock.release() |
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logging.debug("Op %s/%s: Starting %s", idx + 1, count, op)
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op.SetStatus(constants.OP_STATUS_RUNNING, None) |
|
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|
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result = proc.ExecOpCode(op.input) |
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self._lock.acquire() |
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try: |
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logging.debug("Op %s/%s: Successfully finished %s",
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idx + 1, count, op) |
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op.status = constants.OP_STATUS_SUCCESS |
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op.result = result |
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finally: |
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self._lock.release() |
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op.SetStatus(constants.OP_STATUS_SUCCESS, result) |
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logging.debug("Op %s/%s: Successfully finished %s",
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idx + 1, count, op) |
|
| 127 | 135 |
except Exception, err: |
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self._lock.acquire() |
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try: |
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logging.debug("Op %s/%s: Error in %s", idx + 1, count, op)
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op.status = constants.OP_STATUS_ERROR |
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op.result = str(err) |
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finally: |
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self._lock.release() |
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op.SetStatus(constants.OP_STATUS_ERROR, str(err)) |
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logging.debug("Op %s/%s: Error in %s", idx + 1, count, op)
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| 135 | 138 |
raise |
| 136 | 139 |
|
| 137 | 140 |
except errors.GenericError, err: |
| ... | ... | |
| 227 | 230 |
row.append(job.GetStatus()) |
| 228 | 231 |
elif fname == "result": |
| 229 | 232 |
# TODO |
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row.append(map(lambda op: op.result, job._ops))
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row.append([op.GetResult() for op in job._ops])
|
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| 231 | 234 |
else: |
| 232 | 235 |
raise errors.OpExecError("Invalid job query field '%s'" % fname)
|
| 233 | 236 |
return row |
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