Agnostic now a package. Interactive testing now relies on monotonic. time now under...

[Adafruit_Blinka-hackapet.git] / src / adafruit_blinka / agnostic / time.py

diff --git a/src/adafruit_blinka/agnostic/time.py b/src/adafruit_blinka/agnostic/time.py
new file mode 100644 (file)
index 0000000..078b833
--- /dev/null
+++ b/src/adafruit_blinka/agnostic/time.py
@@ -0,0 +1,27 @@
+from adafruit_blinka import agnostic
+if agnostic.implementation == "circuitpython":
+    from time import *
+elif agnostic.implementation == "micropython":
+    import utime
+    from utime import sleep
+
+    from ucollections import namedtuple
+    _struct_time = namedtuple("struct_time", ("tm_year", "tm_mon", "tm_mday", "tm_hour", "tm_min", "tm_sec", "tm_wday", "tm_yday", "tm_isdst"))
+
+    def marshal_time(tm_year, tm_mon, tm_mday, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=-1, tm_yday=-1, tm_isdst=-1):
+        _struct_time(tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec, tm_wday, tm_yday, tm_isdst)
+
+    def struct_time(t):
+        return marshal_time(*t)
+
+    total_ms = 0
+    prev_ticks_ms = utime.ticks_ms()
+    def monotonic():
+        """
+        Assumes that monotonic is called more frequently than the wraparound of micropython's utime.ticks_ms()
+        """
+        global prev_ticks_ms, total_ms
+        ticks_ms = utime.ticks_ms()
+        total_ms += utime.ticks_diff(ticks_ms, prev_ticks_ms)
+        prev_ticks_ms = ticks_ms
+        return total_ms * 0.001
\ No newline at end of file