diff options
| -rw-r--r-- | util/uuid.lua | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/util/uuid.lua b/util/uuid.lua index fd21dfcc..e928259d 100644 --- a/util/uuid.lua +++ b/util/uuid.lua @@ -7,13 +7,28 @@ -- - local m_random = math.random; local tostring = tostring; +local os_time = os.time; +local os_clock = os.clock; +local sha1 = require "util.hashes".sha1; + module "uuid" +local last_uniq_time = 0; +local function uniq_time() + local new_uniq_time = os_time(); + if last_uniq_time >= new_uniq_time then new_uniq_time = last_uniq_time + 1; end + last_uniq_time = new_uniq_time; + return new_uniq_time; +end + +local function new_random(x) + return sha1(x..os_clock()..tostring({}), true); +end + function generate() - return tostring(m_random(0, 99999999)); + return new_random(uniq_time()); end -return _M;
\ No newline at end of file +return _M; |