327
edits
Changes
mLine 1:
Line 1: − + Line 6:
Line 6: − − {{Warning|The library is not thread- and fork- safe}} Line 19:
Line 17: − + Line 36:
Line 34: + + Line 131:
Line 131: − + +
→set service address: apply documentation change proposed in https://github.com/checkpoint-restore/criu/issues/1954
'''libcriu''' is a C API for CRIU, which is a simple wrapper around our [[RPC]]. Although you can use [[RPC]] directly, libcriu is a wrapper providing the interface that is much easier to use from C code. Note that [[RPC]] is supported in the first place, and if you want the most recent set of features you should probably use [[RPC]] directly.
'''libcriu''' is a C API for CRIU, a simple wrapper around our [[RPC]]. Although you can use [[RPC]] directly, libcriu is a wrapper providing the interface that is much easier to use from C code. Note that [[RPC]] is supported in the first place, and if you want the most recent set of features you should probably use [[RPC]] directly.
== Introduction ==
== Introduction ==
To create a library <code>lib/libcriu.so</code>, run <code>make</code> in the main directory.
To create a library <code>lib/libcriu.so</code>, run <code>make</code> in the main directory.
== Preparation ==
== Preparation ==
=== set service address ===
=== set service address ===
Use <code>void criu_set_service_address(char *address)</code> to specify path to a CRIU service socket. Call it with NULL to make libcriu use the default address (currently <code>/var/run/criu_service.socket</code>).
Use <code>void criu_set_service_address(char *address)</code> to specify path to a CRIU service socket. Call it with NULL to make libcriu use the default address (currently <code>criu_service.socket</code> in the local directory). Note that a CRIU service must be running at that address for the C API to work; you cannot use the C API standalone. To start a CRIU service, run <code>criu service --address /path/to/criu_service.socket</code>. The path given in this command is the path that needs to be passed to <code>criu_set_service_address</code>.
=== set dump/restore options ===
=== set dump/restore options ===
void criu_set_log_file(char *log_file);
void criu_set_log_file(char *log_file);
</source>
</source>
{{Note|This set of calls is not thread safe! For thread safety the same calls with _local suffix should be used}}
If no pid is set on dump, CRIU will dump the calling process itself.
If no pid is set on dump, CRIU will dump the calling process itself.
== Examples ==
== Examples ==
You could find example of using libcriu at [https://github.com/xemul/criu/tree/master/test/libcriu test/libcriu].
You could find example of using libcriu at [https://github.com/checkpoint-restore/criu/tree/criu-dev/test/others/libcriu test/others/libcriu].
[[Category: API]]
[[Category: API]]
[[Category: Outdated]]