Sha256: b645cb3d9922058a808c42a7f6b90e6d9a84a90f2e267bab486f85dd33cda672
Contents?: true
Size: 1.33 KB
Versions: 26
Compression:
Stored size: 1.33 KB
Contents
module Vedeu
module Logging
# Ensures we can always write to the log file by creating a
# lock-less log device.
#
# @api private
#
class LocklessLogDevice < ::Logger::LogDevice
# Returns a new instance of Vedeu::Logging::LocklessLogDevice.
#
# @param log [void]
# @return [Vedeu::Logging::LocklessLogDevice]
def initialize(log = nil)
@dev = nil
@filename = nil
if log.respond_to?(:write) && log.respond_to?(:close)
@dev = log
else
@dev = open_logfile(log)
@dev.sync = true
@filename = log
end
end
# @param message [String]
# @return [void]
def write(message)
@dev.write(message)
rescue StandardError => exception
warn("log writing failed. #{exception}".freeze)
end
# @return [void]
def close
@dev.close
rescue
nil
end
private
# @param log [String]
# @return [void]
def open_logfile(log)
if FileTest.exist?(log)
open(log, (File::WRONLY | File::APPEND))
else
logdev = open(log, (File::WRONLY | File::APPEND | File::CREAT))
logdev.sync = true
logdev
end
end
end # LocklessLogDevice
end # Logging
end # Vedeu
Version data entries
26 entries across 26 versions & 1 rubygems