From 1eb41e22ab4288bef5883ee93d04e87f5b1fb5ca Mon Sep 17 00:00:00 2001 From: "Gregory P. Smith" Date: Sat, 27 Sep 2003 23:00:19 +0000 Subject: Use a threadsafe private DBEnv for each bsddb compatibility interface db that is opened. DB_THREAD and DB_INIT_LOCK allow for multithreaded access. DB_PRIVATE prevents the DBEnv from using the filesystem (making it only usable by this process; and in this implementation using one DBEnv per bsddb database) --- Lib/bsddb/__init__.py | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/Lib/bsddb/__init__.py b/Lib/bsddb/__init__.py index 4671acc..51cc454 100644 --- a/Lib/bsddb/__init__.py +++ b/Lib/bsddb/__init__.py @@ -189,7 +189,8 @@ def hashopen(file, flag='c', mode=0666, pgsize=None, ffactor=None, nelem=None, cachesize=None, lorder=None, hflags=0): flags = _checkflag(flag) - d = db.DB() + e = _openDBEnv() + d = db.DB(e) d.set_flags(hflags) if cachesize is not None: d.set_cachesize(0, cachesize) if pgsize is not None: d.set_pagesize(pgsize) @@ -206,7 +207,8 @@ def btopen(file, flag='c', mode=0666, pgsize=None, lorder=None): flags = _checkflag(flag) - d = db.DB() + e = _openDBEnv() + d = db.DB(e) if cachesize is not None: d.set_cachesize(0, cachesize) if pgsize is not None: d.set_pagesize(pgsize) if lorder is not None: d.set_lorder(lorder) @@ -224,7 +226,8 @@ def rnopen(file, flag='c', mode=0666, rlen=None, delim=None, source=None, pad=None): flags = _checkflag(flag) - d = db.DB() + e = _openDBEnv() + d = db.DB(e) if cachesize is not None: d.set_cachesize(0, cachesize) if pgsize is not None: d.set_pagesize(pgsize) if lorder is not None: d.set_lorder(lorder) @@ -238,6 +241,10 @@ def rnopen(file, flag='c', mode=0666, #---------------------------------------------------------------------- +def _openDBEnv(): + e = db.DBEnv() + e.open('.', db.DB_PRIVATE | db.DB_CREATE | db.DB_THREAD | db.DB_INIT_LOCK | db.DB_INIT_MPOOL) + return e def _checkflag(flag): if flag == 'r': -- cgit v0.12