From e227b234c03a2ed855487c70dccc3c55927753bc Mon Sep 17 00:00:00 2001
From: waldek <waldek@mailbox.org>
Date: Mon, 5 Jul 2021 15:48:42 +0200
Subject: [PATCH] completes the processes md and adds the exercises

---
 modules/qualifying/assets/processes_ex_01.py | 13 +++++++++++
 modules/qualifying/assets/processes_ex_02.py | 23 ++++++++++++++++++++
 modules/qualifying/assets/processes_ex_03.py | 18 +++++++++++++++
 3 files changed, 54 insertions(+)
 create mode 100755 modules/qualifying/assets/processes_ex_01.py
 create mode 100755 modules/qualifying/assets/processes_ex_02.py
 create mode 100755 modules/qualifying/assets/processes_ex_03.py

diff --git a/modules/qualifying/assets/processes_ex_01.py b/modules/qualifying/assets/processes_ex_01.py
new file mode 100755
index 0000000..f827e55
--- /dev/null
+++ b/modules/qualifying/assets/processes_ex_01.py
@@ -0,0 +1,13 @@
+import time
+import os
+
+start_ts = time.time()
+loops = 0
+
+while True:
+    time.sleep(1)
+    loops += 1
+    tick_ts = time.time()
+    delta = int(tick_ts - start_ts)
+    pid = os.getpid()
+    print("I'm {} and I've been running for {} seconds and did {} loops".format(pid, delta, loops))
diff --git a/modules/qualifying/assets/processes_ex_02.py b/modules/qualifying/assets/processes_ex_02.py
new file mode 100755
index 0000000..b61f27e
--- /dev/null
+++ b/modules/qualifying/assets/processes_ex_02.py
@@ -0,0 +1,23 @@
+import time
+import os
+import random
+
+start_ts = time.time()
+loops = 0
+
+while True:
+    time.sleep(1)
+    loops += 1
+    tick_ts = time.time()
+    delta = int(tick_ts - start_ts)
+    pid = os.getpid()
+    print("I'm {} and I've been running for {} seconds and did {} loops".format(pid, delta, loops))
+    chance = random.randint(0, 20)
+    if chance == 5:
+        response = input("I need some input...")
+        if len(response) == 0:
+            exit(0)
+        else:
+            print("thanks for the response, I'll reset my counter and continue now...")
+            start_ts = time.time()
+            loops = 0
diff --git a/modules/qualifying/assets/processes_ex_03.py b/modules/qualifying/assets/processes_ex_03.py
new file mode 100755
index 0000000..3c4ac96
--- /dev/null
+++ b/modules/qualifying/assets/processes_ex_03.py
@@ -0,0 +1,18 @@
+import time
+import os
+import signal
+
+def alarm_handler(signum, frame):
+    print("I'm an alarm hear me ring! (my ID is {})".format(signum))
+
+def main():
+    print("I'm {}".format(os.getpid()))
+    while True:
+        time.sleep(1)
+
+if __name__ == "__main__":
+    signal.signal(signal.SIGALRM, alarm_handler)
+    try:
+        main()
+    except Exception as e:
+        print(e)