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Fixes a bug where I forgot to set the reallocced memory.
Addresses #42

git-svn-id: file:///svn/tokudb@1305 c7de825b-a66e-492c-adef-691d508d4ae1

DB->open, and DB->remove now use the data dirs
We look (in order) in each of the data dirs for a file to open/remove.
The first file found, is the one used (even if another is similarly named with
different subdbs).

For creating dbs, (if file does not exist in any of the search dirs), we always
create in the first data dir (or env->i->dir if no data dirs are set).

Addresses #42
Addresses #108


git-svn-id: file:///svn/tokudb@1304 c7de825b-a66e-492c-adef-691d508d4ae1

DbEnv.set_errfile

toku_db_env_err now writes to the file from set_errfile
toku_db_env_err calls toku_db_env_err_vararg

Fixed DbException.set_env, and callers of it.
Modified test1 to not use exceptions, since the test tried to use return codes.

Closes #214
Addresses #197
Addresses #215

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git-svn-id: file:///svn/tokudb@1302 c7de825b-a66e-492c-adef-691d508d4ae1

the exception class is implemented, and for db.cpp and dbenv.cpp it is called.  Still need to do exceptions for dbc.cpp dbt.cpp txn.cpp.  Addresses #215.

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DbEnv.set_data_dir, DbEnv.set_errpfx

Added tests for them.
Addresses #197

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test1 modified to test the new features.

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error codes from unlink.
Modified test_db_remove_subdb to check for this.
Closes #211

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Modified test1 to test new functions and some of the older ones.
Addresses #197

git-svn-id: file:///svn/tokudb@1285 c7de825b-a66e-492c-adef-691d508d4ae1

Modified test1 to test new functions and some of the older ones.
Addresses #197

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to support 'flags==0 returns EINVAL for put on a dupsort db'
Addresses #180
Addresses #15
Addresses #194

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really have a right to.  It was creating the directory and then
calling {{{DB_ENV->open}}} without specifying {{{DB_CREATE}}} and then
complaining if the open was successful.

For BDB, the open is not successful because BDB has internal files it sets up.

TokuDB has no internal files (yet) because it only handles
{{{DB_PRIVATE}}} databases.  Hence creating the directory is enough to
make TokuDB happy.  And we're OK with that.

Addresses #209.


git-svn-id: file:///svn/tokudb@1263 c7de825b-a66e-492c-adef-691d508d4ae1

Print an error message for DB_PRIVATE missing, and make the test actually observe issue #209 (open works even when the dir doesn't exist but DB_CREATE is not specified).  Addresses #208, 209.

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