net: allow runtime modification of outbound connection count. adds a method to darkirc to set_outbound_connections, use the scripts ./script/node_get_info.py and ./script/node_set-connect.py to verify

script/node_get_info.py

@@ -73,6 +73,12 @@ class JsonRpc:
     async def dnet_subscribe_events(self):
         return await self._subscribe("dnet.subscribe_events", [])
 
+    async def get_info(self):
+        return await self._make_request("p2p.get_info", [])
+
+    async def set_outbound_connections(self, n):
+        return await self._make_request("p2p.set_outbound_connections", [n])
+
 async def main(argv):
     rpc = JsonRpc()
     while True:
@@ -126,4 +132,6 @@ async def main(argv):
 
     await rpc.stop()
 
-asyncio.run(main(sys.argv))
+if __name__ == "__main__":
+    asyncio.run(main(sys.argv))
+

script/node_set-conns.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+
+# This file is part of DarkFi (https://dark.fi)
+#
+# Copyright (C) 2020-2025 Dyne.org foundation
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+import asyncio
+import sys
+from node_get_info import JsonRpc
+
+async def main(argv):
+    if len(argv) != 2:
+        print(f"Usage: {argv[0]} <num_connections>", file=sys.stderr)
+        sys.exit(1)
+
+    try:
+        num_conns = int(argv[1])
+        if num_conns <= 0:
+            raise ValueError()
+    except ValueError:
+        print("Error: num_connections must be a positive integer", file=sys.stderr)
+        sys.exit(1)
+
+    rpc = JsonRpc()
+    while True:
+        try:
+            await rpc.start("localhost", 26660)
+            break
+        except OSError:
+            pass
+
+    response = await rpc.set_outbound_connections(num_conns)
+
+    if "error" in response:
+        print(f"Error: {response['error']}")
+        await rpc.stop()
+        sys.exit(1)
+
+    print(f"Set outbound connections to {num_conns}: {response['result']}")
+    await rpc.stop()
+
+asyncio.run(main(sys.argv))