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https://issues.apache.org/jira/browse/ZOOKEEPER-761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15754058#comment-15754058
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Hudson commented on ZOOKEEPER-761:
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FAILURE: Integrated in Jenkins build ZooKeeper-trunk #3195 (See
[https://builds.apache.org/job/ZooKeeper-trunk/3195/])
ZOOKEEPER-761: Remove *synchronous* calls from the *single-threaded* C (fpj:
rev c0868332a76cb6d0fa120058dc6cf7c55b0d0ec0)
* (edit) src/c/tests/TestClient.cc
* (edit) src/c/tests/TestReadOnlyClient.cc
* (edit) src/c/src/zk_adaptor.h
* (edit) src/c/src/zookeeper.c
* (edit) src/c/include/zookeeper.h
* (edit) src/c/src/st_adaptor.c
* (edit) src/c/tests/TestReconfigServer.cc
* (edit) src/c/src/cli.c
* (edit) src/c/tests/TestMulti.cc
> Remove *synchronous* calls from the *single-threaded* C clieant API, since
> they are documented not to work
> ----------------------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-761
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-761
> Project: ZooKeeper
> Issue Type: Improvement
> Components: c client
> Affects Versions: 3.1.1, 3.2.2
> Environment: RHEL 4u8 (Linux). The issue is not OS-specific though.
> Reporter: Jozef Hatala
> Assignee: Benjamin Reed
> Priority: Blocker
> Fix For: 3.5.3, 3.6.0
>
> Attachments: fix-sync-apis-in-st-adaptor.patch,
> fix-sync-apis-in-st-adaptor.v2.patch
>
>
> Since the synchronous calls are
> [known|http://hadoop.apache.org/zookeeper/docs/current/zookeeperProgrammers.html#Using+the+C+Client]
> to be unimplemented in the single threaded version of the client library
> libzookeeper_st.so, I believe that it would be helpful towards users of the
> library if that information was also obvious from the header file.
> Anecdotally more than one of us here made the mistake of starting by using
> the synchronous calls with the single-threaded library, and we found
> ourselves debugging it. An early warning would have been greatly appreciated.
> 1. Could you please add warnings to the doxygen blocks of all synchronous
> calls saying that they are not available in the single-threaded API. This
> cannot be safely done with {{#ifdef THREADED}}, obviously, because the same
> header file is included whichever client library implementation one is
> compiling for.
> 2. Could you please bracket the implementation of all synchronous calls in
> zookeeper.c with {{#ifdef THREADED}} and {{#endif}}, so that those symbols
> are not present in libzookeeper_st.so?
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