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FEATURE: Checking for port used before starting server session #393

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merged 1 commit into from
Apr 24, 2024
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FEATURE: Checking for port used before starting server session #393

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26 changes: 22 additions & 4 deletions src/ansys/edb/core/session.py
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Original file line number Diff line number Diff line change
Expand Up @@ -469,8 +469,7 @@ def launch_session(ansys_em_root, port_num=None):
ip_address = None # remote launch is not supported yet

try:
MOD.current_session = _Session(ip_address, port_num, ansys_em_root)
MOD.current_session.connect()
_ensure_session(ansys_em_root, port_num, ip_address)
return MOD.current_session
except Exception as e: # noqa
if MOD.current_session is not None:
Expand Down Expand Up @@ -504,8 +503,7 @@ def session(ansys_em_root, port_num, ip_address=None):
>>> # program goes here
"""
try:
MOD.current_session = _Session(ip_address, port_num, ansys_em_root)
MOD.current_session.connect()
_ensure_session(ansys_em_root, port_num, ip_address)
yield
except EDBSessionException:
raise
Expand Down Expand Up @@ -553,3 +551,23 @@ def get_variable_server_stub():
VariableServerServiceStub
"""
return StubAccessor(StubType.variable_server).__get__()


def _ensure_session(ansys_em_root, port_num, ip_address):
"""Check for a running local session and create one if it doesn't exist.

Parameters
----------
ansys_em_root : str
Directory where the ``EDB_RPC_Server.exe`` file is installed.
port_num : int
Port number to listen on.
ip_address : str, default: None
IP address where the server executable file is running.
"""
if MOD.current_session is not None:
if MOD.current_session.port_num != port_num:
raise EDBSessionException(ErrorCode.STARTUP_MULTI_SESSIONS)
else:
MOD.current_session = _Session(ip_address, port_num, ansys_em_root)
MOD.current_session.connect()
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