From c835bf15da3ce39b856222d352c800f6ebd51acf Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Thu, 14 Aug 2025 13:32:19 +0200
Subject: Added attempt to make pause / resume work with python module

---
 python/examples/pause_resume.py | 35 +++++++++++++++++++++++++++++++++++
 python/examples/solve.py        |  6 ++----
 2 files changed, 37 insertions(+), 4 deletions(-)
 create mode 100644 python/examples/pause_resume.py

(limited to 'python/examples')

diff --git a/python/examples/pause_resume.py b/python/examples/pause_resume.py
new file mode 100644
index 0000000..5daebeb
--- /dev/null
+++ b/python/examples/pause_resume.py
@@ -0,0 +1,35 @@
+# This example is meant to test the pause / resume / stop mechanism
+# See the solve.py example for more details on how this works
+
+import sys, os, time
+
+sys.path.append(os.getcwd())
+sys.path.append(os.getcwd() + os.path.sep + "python")
+import nissy
+
+# Function used to pause, resume and kill the solver
+t0 = time.time()
+def poll():
+	t = time.time() - t0
+	if t < 3:
+		print("[{}s] pausing for the first 3 seconds".format(t))
+		return nissy.status_pause
+	if t < 6:
+		print("[{}s] Letting the solver run for 3 seconds".format(t))
+		return nissy.status_run
+	print("[{}s] Too much time has passed, giving up".format(t))
+	return nissy.status_stop
+
+solver = "h48h0k4"
+datapath = "tables" + os.path.sep + solver
+if os.path.exists(datapath):
+	data = bytearray(open(datapath, "rb").read())
+else:
+	data = nissy.gendata("h48h0k4")
+	print("Generated data will NOT be persisted")
+
+# Scramble is 19 moves optimal, should take a while with the h48h0k4 solver
+scramble = "R' U' F D R F2 D L F D2 F2 L' U R' L2 D' R2 F2 R2 D L2 U2 R' U' F"
+cube = nissy.applymoves(nissy.solved_cube, scramble);
+
+nissy.solve(cube, solver, nissy.nissflag_normal, 0, 9, 3, 20, 4, data, poll)
diff --git a/python/examples/solve.py b/python/examples/solve.py
index 75e7914..c2c992b 100644
--- a/python/examples/solve.py
+++ b/python/examples/solve.py
@@ -3,12 +3,10 @@
 # Run "./build.sh python", then run this from either the top-level directory
 # of the nissy-core repo or from the python subdirectory.
 
-# Append the directories to the python path so we can load the module
+# Append the directories to the python path and import
 import sys, os
 sys.path.append(os.getcwd())
 sys.path.append(os.getcwd() + os.path.sep + "python")
-
-# Import with a nicer name
 import nissy
 
 # Choose the solver you prefer
@@ -26,7 +24,7 @@ else:
 cube = nissy.applymoves(nissy.solved_cube, "U F R2");
 
 # Solve!
-solutions = nissy.solve(cube, solver, nissy.nissflag_normal, 0, 9, 3, 20, 4, data)
+solutions = nissy.solve(cube, solver, nissy.nissflag_normal, 0, 9, 3, 20, 4, data, None)
 
 # Print the solutions, one per line
 print("Found ", len(solutions), " solutions:")
-- 
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