openstack/deb-python-pulp
Code Issues Proposed changes

fixes for possible memory leak with cplex thanks Timo Korvola <Timo.Korvola@vtt.fi>

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This commit is contained in:
Stuart Mitchell
2013-01-18 11:01:24 +13:00
parent 4e14b290b7
commit d0dfdcd86a
1 changed files with 4 additions and 0 deletions
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4
src/pulp/solvers.py
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@@ -715,6 +715,7 @@ try:
"the call returned status=%s" % str(runtime_status) +
"Please check the pulp config file.")
self.env = CPLEX_DLL.lib.CPXopenCPLEX(ctypes.byref(status))
self.hprob = None
if not(status.value == 0):
raise PulpSolverError, ("CPLEX library failed on " +
"CPXopenCPLEX status=" + str(status))
@@ -724,6 +725,7 @@ try:
"""Release a previously obtained CPLEX licence"""
if getattr(self,"env",False):
status=CPLEX_DLL.lib.CPXcloseCPLEX(self.env)
self.env = self.hprob = None
else:
raise PulpSolverError, "No CPLEX enviroment to close"
@@ -749,6 +751,8 @@ try:
#TODO alter so that msg parameter is handled correctly
status = ctypes.c_int()
byref = ctypes.byref #shortcut to function
if self.hprob is not None:
CPLEX_DLL.lib.CPXfreeprob(self.env, self.hprob)
self.hprob = CPLEX_DLL.lib.CPXcreateprob(self.env,
byref(status), lp.name)
if status.value != 0: