Module: Unicorn::Util
- Defined in:
- lib/unicorn/util.rb
Class Method Summary collapse
- .chown_logs(uid, gid) ⇒ Object
-
.is_log?(fp) ⇒ Boolean
:stopdoc:.
-
.reopen_logs ⇒ Object
This reopens ALL logfiles in the process that have been rotated using logrotate(8) (without copytruncate) or similar tools.
Class Method Details
.chown_logs(uid, gid) ⇒ Object
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# File 'lib/unicorn/util.rb', line 17 def self.chown_logs(uid, gid) ObjectSpace.each_object(File) do |fp| fp.chown(uid, gid) if is_log?(fp) end end |
.is_log?(fp) ⇒ Boolean
:stopdoc:
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# File 'lib/unicorn/util.rb', line 6 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 |
.reopen_logs ⇒ Object
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
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# File 'lib/unicorn/util.rb', line 32 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 |