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Opened 8 years ago

Closed 7 years ago

#3582 closed Bugs (fixed)

boost::interprocess::file_lock closes when file is opened then closed.

Reported by: jcoffland Owned by: Ion Gaztañaga
Milestone: Boost 1.45.0 Component: interprocess
Version: Boost 1.39.0 Severity: Problem
Keywords: file_lock open close Cc:

Description

An exclusive file lock is lost if the same file is opened and closed else where in the code.

The attached example was complied like this:

g++ -o boost_file_lock_test boost_file_lock_test.cpp -I<path/top/boost-1_39>/include/boost-1_39/

Running two instances with in 30 seconds demonstrates the bug. Both instances print 'Acquired lock' when one should print 'Could not acquire lock' and exit.

This affects, at the very least, Ubuntu 9.04 Linux but most likely other Linux systems and possibly other platforms.

Attachments (1)

boost_file_lock_test.cpp (536 bytes) - added by joseph@… 8 years ago.
test case

Download all attachments as: .zip

Change History (3)

Changed 8 years ago by joseph@…

Attachment: boost_file_lock_test.cpp added

test case

comment:2 Changed 7 years ago by Ion Gaztañaga

Milestone: Boost 1.41.0Boost-1.45.0
Resolution: fixed
Status: newclosed

Expected behwviour noted in documentation for Boost 1.45 in release branch

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