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87555080c3
Adjust our bos and bosserver code to accommodate pthreads: - Add a new lock (bozo_logLock) to serialize writes to the log. - Add a global lock (bnode_glock) in bosserver, which is held for all code that touches bnodes and processes. Acquire this lock for all entry points into the relevant bosserver code (including all SBOZO_ RPC entry points). - Make bproc "sleep" using opr_cv_timedwait on bproc_cv/bnode_glock, and interrupt bproc's sleep by signalling bproc_cv instead of via IOMGR_Cancel. - Handle signals via opr softsig in bosserver. - Use spawnprocve_sig to clear the signal mask when we spawn a new process, so any mucking around with the signal mask doesn't leak to the child processes. - Use sleep() instead of IOMGR_Sleep() in bosserver and bos. Using a single global lock for the bnode subsystem is a heavy hammer, but this greatly simplifies the code changes required for pthread support. Single-core performance has so far been fine for bosserver, so the practical benefits of finer-grained locking approaches are small. Change-Id: I4bf741e04a6f87a1551dd831a20851b56b10d910 Reviewed-on: https://gerrit.openafs.org/10286 Tested-by: BuildBot <buildbot@rampaginggeek.com> Reviewed-by: Benjamin Kaduk <kaduk@mit.edu> |
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| build-tools | ||
| doc | ||
| src | ||
| tests | ||
| .gitignore | ||
| .gitreview | ||
| .mailmap | ||
| .splintrc | ||
| acinclude.m4 | ||
| CODING | ||
| configure-libafs.ac | ||
| configure.ac | ||
| CONTRIBUTING | ||
| INSTALL | ||
| libafsdep | ||
| LICENSE | ||
| Makefile-libafs.in | ||
| Makefile.in | ||
| NEWS | ||
| NTMakefile | ||
| README | ||
| README-WINDOWS | ||
| regen.sh | ||
AFS is a distributed file system that enables users to share and access all of the files stored in a network of computers as easily as they access the files stored on their local machines. The file system is called distributed for this exact reason: files can reside on many different machines, but are available to users on every machine. OpenAFS 1.0 was originally released by IBM under the terms of the IBM Public License 1.0 (IPL10). For details on IPL10 see the LICENSE file in this directory. The current OpenAFS distribution is licensed under a combination of the IPL10 and many other licenses as granted by the relevant copyright holders. The LICENSE file in this directory contains more details, thought it is not a comprehensive statement. See INSTALL for information about building and installing OpenAFS on various platforms. See CODING for developer information and guidelines. See NEWS for recent changes to OpenAFS.