From af5ec222ccd24e81f9fec6c34836a4e503e7ccf7 Mon Sep 17 00:00:00 2001
From: Przemysław Suliga <1270737+suligap@users.noreply.github.com>
Date: Wed, 8 May 2019 18:34:22 +0200
Subject: Used time.monotonic() instead of time.time() where applicable.

time.monotonic() available from Python 3.3:

- Nicely communicates a narrow intent of "get a local system monotonic
  clock time" instead of possible "get a not necessarily accurate Unix
  time stamp because it needs to be communicated to outside of this
  process/machine" when time.time() is used.

- Its result isn't affected by the system clock updates.

There are two classes of time.time() uses changed to time.monotonic()
by this change:

- measuring time taken to run some code.

- setting and checking a "close_at" threshold for for persistent db
  connections (django/db/backends/base/base.py).
---
 django/core/management/commands/migrate.py | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'django/core')

diff --git a/django/core/management/commands/migrate.py b/django/core/management/commands/migrate.py
index 7eaad620b5..37914e2622 100644
--- a/django/core/management/commands/migrate.py
+++ b/django/core/management/commands/migrate.py
@@ -261,33 +261,33 @@ class Command(BaseCommand):
             compute_time = self.verbosity > 1
             if action == "apply_start":
                 if compute_time:
-                    self.start = time.time()
+                    self.start = time.monotonic()
                 self.stdout.write("  Applying %s..." % migration, ending="")
                 self.stdout.flush()
             elif action == "apply_success":
-                elapsed = " (%.3fs)" % (time.time() - self.start) if compute_time else ""
+                elapsed = " (%.3fs)" % (time.monotonic() - self.start) if compute_time else ""
                 if fake:
                     self.stdout.write(self.style.SUCCESS(" FAKED" + elapsed))
                 else:
                     self.stdout.write(self.style.SUCCESS(" OK" + elapsed))
             elif action == "unapply_start":
                 if compute_time:
-                    self.start = time.time()
+                    self.start = time.monotonic()
                 self.stdout.write("  Unapplying %s..." % migration, ending="")
                 self.stdout.flush()
             elif action == "unapply_success":
-                elapsed = " (%.3fs)" % (time.time() - self.start) if compute_time else ""
+                elapsed = " (%.3fs)" % (time.monotonic() - self.start) if compute_time else ""
                 if fake:
                     self.stdout.write(self.style.SUCCESS(" FAKED" + elapsed))
                 else:
                     self.stdout.write(self.style.SUCCESS(" OK" + elapsed))
             elif action == "render_start":
                 if compute_time:
-                    self.start = time.time()
+                    self.start = time.monotonic()
                 self.stdout.write("  Rendering model states...", ending="")
                 self.stdout.flush()
             elif action == "render_success":
-                elapsed = " (%.3fs)" % (time.time() - self.start) if compute_time else ""
+                elapsed = " (%.3fs)" % (time.monotonic() - self.start) if compute_time else ""
                 self.stdout.write(self.style.SUCCESS(" DONE" + elapsed))
 
     def sync_apps(self, connection, app_labels):
-- 
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