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-rw-r--r--synapse/config/workers.py71
1 files changed, 71 insertions, 0 deletions
diff --git a/synapse/config/workers.py b/synapse/config/workers.py
new file mode 100644
index 0000000000..fd19e38b87
--- /dev/null
+++ b/synapse/config/workers.py
@@ -0,0 +1,71 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 matrix.org
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import collections
+
+from ._base import Config
+from .server import read_gc_thresholds
+
+
+Worker = collections.namedtuple("Worker", [
+    "app",
+    "listeners",
+    "pid_file",
+    "daemonize",
+    "log_file",
+    "log_config",
+    "event_cache_size",
+    "soft_file_limit",
+    "gc_thresholds",
+    "replication_url",
+])
+
+
+def clobber_with_worker_config(config, worker_config):
+    """Overrides some of the keys of the main config with worker-specific
+    values."""
+    config.event_cache_size = worker_config.event_cache_size
+    config.replication_url = worker_config.replication_url
+
+
+def read_worker_config(config):
+    return Worker(
+        app=config["app"],
+        listeners=config.get("listeners", []),
+        pid_file=config.get("pid_file"),
+        daemonize=config["daemonize"],
+        log_file=config.get("log_file"),
+        log_config=config.get("log_config"),
+        event_cache_size=Config.parse_size(config.get("event_cache_size", "10K")),
+        soft_file_limit=config.get("soft_file_limit"),
+        gc_thresholds=read_gc_thresholds(config.get("gc_thresholds")),
+        replication_url=config.get("replication_url"),
+    )
+
+
+class WorkerConfig(Config):
+    """The workers are processes run separately to the main synapse process.
+    Each worker has a name that identifies it within the config file.
+    They have their own pid_file and listener configuration. They use the
+    replication_url to talk to the main synapse process. They have their
+    own cache size tuning, gc threshold tuning and open file limits."""
+
+    def read_config(self, config):
+        workers = config.get("workers", {})
+
+        self.workers = {
+            worker_name: read_worker_config(worker_config)
+            for worker_name, worker_config in workers.items()
+        }