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−=== criu_req_type ===
−There is only 1 request/response type for now.
−<pre>enum criu_req_type {
− EMPTY = 0;
− DUMP = 1;
−}
−</pre>
−
criu_dump_req is used to store dump options.+
== Protobuf messages ==
== Protobuf messages ==
−criu_req/criu_resp -- wrappers for requests/responses. They are to be used for transferring messages. It is needed to provide compatibility with an older versions of rpc. Field type in them _must_ be set accordingly to type of request/response that is stored. Types of request/response are defined in enum criu_req_type.
+criu_req/criu_resp -- wrappers for requests/responses. They are to be used for transferring messages and needed to provide compatibility with an older versions of rpc. Field type in them _must_ be set accordingly to type of request/response that is stored. Types of request/response are defined in enum criu_req_type.
−=== criu_req ===
=== criu_req ===
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optional criu_dump_req dump = 2;
optional criu_dump_req dump = 2;
+}
+</pre>
+
+==== criu_req_type ====
+There is only 1 request/response type for now.
+<pre>enum criu_req_type {
+ EMPTY = 0;
+ DUMP = 1;
}
}
</pre>
</pre>
==== criu_dump_req ====
==== criu_dump_req ====
−It is used to store dump options.
<pre>message criu_dump_req {
<pre>message criu_dump_req {
required int32 images_dir_fd = 1;
required int32 images_dir_fd = 1;
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Field "restored" is set to "true" if process was restored.
Field "restored" is set to "true" if process was restored.
−== Server ==
+== Run ==
+=== Server ===
On a server side, CRIU creates SOCK_SEQPACKET Unix socket and listens for connections on it. After receiving criu_req, CRIU processes it, do what is requested and sends response back.
On a server side, CRIU creates SOCK_SEQPACKET Unix socket and listens for connections on it. After receiving criu_req, CRIU processes it, do what is requested and sends response back.
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For the full list of options, please run "criu -h".
For the full list of options, please run "criu -h".
−== Client ==
+=== Client ===
Client, in its turn, must connect to service socket, send criu_msg with request in it, and wait for a criu_resp with response.
Client, in its turn, must connect to service socket, send criu_msg with request in it, and wait for a criu_resp with response.
You can find examples of client programs in C and Python in test/rpc/.
You can find examples of client programs in C and Python in test/rpc/.