diff options
| -rw-r--r-- | lockfiles.lua | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lockfiles.lua b/lockfiles.lua index 9e120bd..d018bc9 100644 --- a/lockfiles.lua +++ b/lockfiles.lua @@ -53,10 +53,12 @@ local function create_lock_file(lock_dir, lfile_path) end -- create the lock file with our pid - if not io.open(lfile_path, 'w') then + lock_file = io.open(lfile_path, 'w') + if not lock_file then + -- retry, this time asserting success; first ensure directory exists assert(os.execute('mkdir -p "' .. lock_dir .. '"')) + lock_file = assert(io.open(lfile_path, 'w')) end - lock_file = assert(io.open(lfile_path, 'w')) lock_file:write(vis_pid) lock_file:close() |