auto commit

ZeOthers/Vlang/source/gen/DefaultIdGenerator.v

@@ -0,0 +1,67 @@
+module gen
+
+import contract
+import core
+import time
+
+pub struct DefaultIdGenerator {
+mut:
+	options              &contract.IdGeneratorOptions
+	snow_worker          &contract.ISnowWorker
+}
+
+pub fn make_generator(options &contract.IdGeneratorOptions) &DefaultIdGenerator {
+	min_time := i64(631123200000)
+	if options.base_time < min_time || options.base_time > time.now().unix_time_milli()  {
+		panic("base_time error.")
+	}
+
+	if options.seq_bitlength+options.workerid_bitlength > 22 {
+		panic("error：workerid_bitlength + seq_bitlength <= 22")
+	}
+
+	max_workerid_number := 1<<options.workerid_bitlength - 1
+	if options.worker_id > max_workerid_number {
+		panic("WorkerId error. (range:[1, " + max_workerid_number.str() + "]")
+	}
+
+	if options.seq_bitlength < 2 || options.seq_bitlength > 21 {
+		panic("seq_bitlength error. (range:[2, 21])")
+	}
+
+	max_seqnumber := 1<<options.seq_bitlength - 1
+	if options.max_seqnumber > max_seqnumber {
+		panic("MaxSeqNumber error. (range:[1, " + max_seqnumber.str() + "]")
+	}
+
+	if options.min_seqnumber > max_seqnumber {
+		panic("MinSeqNumber error. (range:[1, " + max_seqnumber.str() + "]")
+	}
+
+	match options.method {
+		1 {
+			return &DefaultIdGenerator{
+				options:    options,
+				snow_worker: core.make_sf_m1(options),
+			}
+		}
+		2 {
+			return &DefaultIdGenerator{
+				options:    options,
+				snow_worker: core.make_sf_m2(options),
+			}
+		}
+		else {
+			return &DefaultIdGenerator{
+				options:    options,
+				snow_worker: core.make_sf_m1(options),
+			}
+		}
+	}
+
+
+}
+
+pub fn (mut dig DefaultIdGenerator) new_long() u64 {
+	return dig.snow_worker.next_id()
+}