Skip to content

Gate POSIX-only signals and resource module to only run on POSIX Pyth… #576

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Aug 15, 2018
Merged

Gate POSIX-only signals and resource module to only run on POSIX Pyth… #576

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
21 changes: 12 additions & 9 deletions backends/smt2/smtio.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,9 @@
#

import sys, re, os, signal
import resource, subprocess
import subprocess
if os.name == "posix":
import resource
from copy import deepcopy
from select import select
from time import time
Expand All @@ -27,12 +29,13 @@

# This is needed so that the recursive SMT2 S-expression parser
# does not run out of stack frames when parsing large expressions
smtio_reclimit = 64 * 1024
smtio_stacksize = 128 * 1024 * 1024
if sys.getrecursionlimit() < smtio_reclimit:
sys.setrecursionlimit(smtio_reclimit)
if resource.getrlimit(resource.RLIMIT_STACK)[0] < smtio_stacksize:
resource.setrlimit(resource.RLIMIT_STACK, (smtio_stacksize, -1))
if os.name == "posix":
smtio_reclimit = 64 * 1024
smtio_stacksize = 128 * 1024 * 1024
if sys.getrecursionlimit() < smtio_reclimit:
sys.setrecursionlimit(smtio_reclimit)
if resource.getrlimit(resource.RLIMIT_STACK)[0] < smtio_stacksize:
resource.setrlimit(resource.RLIMIT_STACK, (smtio_stacksize, -1))


# currently running solvers (so we can kill them)
Expand All @@ -51,8 +54,9 @@ def force_shutdown(signum, frame):
os.kill(p.pid, signal.SIGTERM)
sys.exit(1)

if os.name == "posix":
signal.signal(signal.SIGHUP, force_shutdown)
signal.signal(signal.SIGINT, force_shutdown)
signal.signal(signal.SIGHUP, force_shutdown)
signal.signal(signal.SIGTERM, force_shutdown)

def except_hook(exctype, value, traceback):
Expand Down Expand Up @@ -1053,4 +1057,3 @@ def set_time(self, t):
print("b0 %s" % self.nets[path][0], file=self.f)
else:
print("b1 %s" % self.nets[path][0], file=self.f)