70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
# SeisComP init script for CAPS
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# Code is required to be Python 2 and 3 compatible
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# pylint: disable=consider-using-f-string, unspecified-encoding
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import os
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import subprocess
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import time
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import seiscomp.kernel
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class Module(seiscomp.kernel.Module):
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def __init__(self, env):
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seiscomp.kernel.Module.__init__(self, env, env.moduleName(__file__))
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self.killTimeout = 60
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self.reloadTimeout = 60
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def updateConfigProxy(self):
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return "trunk"
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def updateConfig(self):
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# By default the "trunk" module must be configured to write the
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# bindings into the database
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return 0
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def supportsAliases(self):
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# The default handler does not support aliases
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return True
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def reload(self):
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if not self.isRunning():
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self.env.log("{} is not running".format(self.name))
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return 1
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self.env.log("reloading {}".format(self.name))
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lockfile = self.env.lockFile(self.name)
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reloadfile = os.path.join(
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os.path.dirname(lockfile), "{}.reload".format(self.name)
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)
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# Open pid file
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with open(lockfile, "r") as f:
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# Try to read the pid
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pid = int(f.readline())
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# Create empty reload file to be removed by CAPS server after
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# reload is complete.
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try:
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with open(reloadfile, "a"):
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pass
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except OSError as e:
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self.env.log(
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"could not create reload file {}: {}".format(reloadfile, e)
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)
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return 1
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# Send SIGHUP
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subprocess.call("kill -s USR1 %d" % pid, shell=True)
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# wait for reload file to disappear
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for _ in range(0, int(self.reloadTimeout * 5)):
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time.sleep(0.2)
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if not os.path.isfile(reloadfile):
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return 0
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self.env.log("timeout exceeded")
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return 1
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