zynaddsubfx

commit 72b7c2b39e261ee0a0990015049ea14c342c7d67
parent 994b86036251bb52003443895715520f37c274ba
Author: Johannes Lorenz <j.git@lorenz-ho.me>
Date:   Fri, 30 Oct 2020 14:20:58 +0100

check-ports.rb: Detect zyn crash

Diffstat:
M
src/Tests/check-ports.rb
 | 
27
++++++++++++++++++++++++---

1 file changed, 24 insertions(+), 3 deletions(-)
diff --git a/src/Tests/check-ports.rb b/src/Tests/check-ports.rb
@@ -2,15 +2,36 @@
 
 require 'open3'
 
+rval=0
+
 # start zyn, grep the lo server port, and connect the port checker to it
 Open3.popen3(Dir.pwd + "/../zynaddsubfx -O null --no-gui") do |stdin, stdout, stderr, wait_thr|
   pid = wait_thr[:pid]
   while line=stderr.gets do 
     # print "line: " + line;
     if /^lo server running on (\d+)$/.match(line) then
-      rval = system(Dir.pwd + "/../../rtosc/port-checker 'osc.udp://localhost:" + $1 + "/'")
-      Process.kill("KILL", pid)
-      exit rval
+      port_checker_rval = system(Dir.pwd + "/../../rtosc/port-checker 'osc.udp://localhost:" + $1 + "/'")
+      if port_checker_rval != true then
+        puts "Error: port-checker has returned #{$?.exitstatus}."
+        rval=1
+      end
+      begin
+        # Check if zyn has not crashed yet
+        # Wait 1 second before detection
+        sleep 1
+        Process.kill(0, pid)
+        # This is only executed if Process.kill did not raise an exception
+        Process.kill("KILL", pid)
+      rescue Errno::ESRCH
+        puts "Error: ZynAddSubFX (PID #{pid}) crashed!"
+        puts "       Missing replies or port-checker crashes could be due to the crash."
+        rval=1
+      rescue
+        puts "Error: Cannot kill ZynAddSubFX (PID #{pid})?"
+        rval=1
+      end
     end
   end
 end
+
+exit rval