On Solaris (and platforms which do not have flock and have lockf),
with GDBM 1.10, gdbm_open(3) blocks when opening already locked
gdbm file. [Bug #8790] [ruby-dev:47631]
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* test/gdbm/test_gdbm.rb (TestGDBM#test_s_open_nolock):
skip a failing test on Windows because flock() implementation is
different from Unix.
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* test/gdbm/test_gdbm.rb (TestGDBM#open_db_child): open the db in a
child process and handshake using popen.
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TestGDBM2#test_writer_open_notexist): We only need to skip libgdbm 1.8.0,
not all 1.8.x. 1.8.1 or later don't have GDBM_WRITER sickness.
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UNIX like permittions.
* test/gdbm/test_gdbm.rb (test_s_open_error): Errno::EWOULDBLOCK is raised on
Windows in such case.
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notice moved from comment to assertion message. [ruby-dev:29127]
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gdbm/test_gdbm.rb: ditto.
sdbm/test_sdbm.rb: ditto.
dbm/test_dbm.rb: add tests for open when db is not exist.
gdbm/test_gdbm.rb: ditto.
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* ext/gdbm/gdbm.c (fgdbm_closed): new method GDBM#closed?
* ext/sdbm/init.c (fsdbm_closed): new method SDBM#closed?
* test/dbm/test_dbm.rb, test/gdbm/test_gdbm.rb, test/sdbm/test_sdbm.rb
(teardown): close all db objects before deleting data files.
* win32/win32.{ch} (unlink): hook runtime function to change
file attribute before unlinking.
merge from 1.8, see [ruby-dev:26360]
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specify an open flag.
(Init_dbm): define open flags: DBM::READER, DBM::WRITER, DBM::WRCREAT
and DBM::NEWDB.
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