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Versions: 19
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Stored size: 1.71 KB
Contents
# -*- encoding: binary -*-
module Unicorn::Util
# :stopdoc:
def self.is_log?(fp)
append_flags = File::WRONLY | File::APPEND
! fp.closed? &&
fp.sync &&
fp.path[0] == ?/ &&
(fp.fcntl(Fcntl::F_GETFL) & append_flags) == append_flags
rescue IOError, Errno::EBADF
false
end
def self.chown_logs(uid, gid)
ObjectSpace.each_object(File) do |fp|
fp.chown(uid, gid) if is_log?(fp)
end
end
# :startdoc:
# This reopens ALL logfiles in the process that have been rotated
# using logrotate(8) (without copytruncate) or similar tools.
# A +File+ object is considered for reopening if it is:
# 1) opened with the O_APPEND and O_WRONLY flags
# 2) opened with an absolute path (starts with "/")
# 3) the current open file handle does not match its original open path
# 4) unbuffered (as far as userspace buffering goes, not O_SYNC)
# Returns the number of files reopened
def self.reopen_logs
to_reopen = []
nr = 0
ObjectSpace.each_object(File) { |fp| is_log?(fp) and to_reopen << fp }
to_reopen.each do |fp|
orig_st = begin
fp.stat
rescue IOError, Errno::EBADF
next
end
begin
b = File.stat(fp.path)
next if orig_st.ino == b.ino && orig_st.dev == b.dev
rescue Errno::ENOENT
end
begin
File.open(fp.path, 'a') { |tmpfp| fp.reopen(tmpfp) }
fp.sync = true
new_st = fp.stat
# this should only happen in the master:
if orig_st.uid != new_st.uid || orig_st.gid != new_st.gid
fp.chown(orig_st.uid, orig_st.gid)
end
nr += 1
rescue IOError, Errno::EBADF
# not much we can do...
end
end
nr
end
end
Version data entries
19 entries across 19 versions & 1 rubygems