Server : Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.20 System : Linux st2.domain.com 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 User : apache ( 48) PHP Version : 7.4.20 Disable Function : NONE Directory : /lib/node_modules/npm/node_modules/lockfile/ |
to ACQUIRE(lockname)
- create server, listen on lockname
- if enotsock, WATCH(lockname)
- if eaddrinuse,
- CONNECT(lockname)
- unref server
- lock has been acquired via server
! on connection, place sockets in queue
to RELEASE(lockname)
- if acquired via connection
- disconnect
- if acquired via server
- send "OK" to front-most connection
- when connection disconnects, RELEASE(lockname)
- if acquired via filename
- unlink file
to CONNECT(lockname)
- net.connect(lockname)
- if enoent or socket termination, ACQUIRE(lockname)
- when server says "OK",
- lock has been acquired via connection
to WATCH(lockname)
- fs.watch(lockname)
- on change, ACQUIRE(lockname)