[389-devel] Please review: [389 Project] #351: use betxn plugins by default

https://fedorahosted.org/389/ticket/351 https://fedorahosted.org/389/attachment/ticket/351/0001-Trac-Ticket-351-u... Fix Description: . Enabled betxn by default on the following plugins: 7-bit check Plugin, Attribute uniqueness Plugin Auto Membership Plugin, Class of Service Plugin Managed Entries, MemberOf Plugin Multimaster Replication Plugin PAM Pass Through Auth Plugin Referential integrity postoperation Plugin Roles Plugin, State Change Plugin, USN Plugin . Exposed backend transaction to plugins: slapi_back_transaction_begin|commit|abort. . Backend serial lock is held just before the backend transaction, instead of at the earliest timing into the backend db plugin. . dse: adjusting to the bepost behaviour, put betxn post hook into "need_be_postop" clause. . MemberOf Plugin: + If betxn is on, MemberOf post operations are called at the betxn postop timing, which is aborted if the main operation fails. + When betxn is on, member of operations are in the transaction as sell as in the backend serial lock. Taking advantage of it, memberof_lock is not held if betxn is on. + MemberOf fixup task uses exposed transaction APIs. . Multimaster Replication Plugin + If betxn is on, Multimaster Replication bepost operations are called at the betxn postop timing. Since betxn post callbacks are already declared, each bepost callback is called from the existing betxn post callbacks (see multimaster_be_betxnpostop_*). . PAM Pass Through Auth Plugin: + If betxn is on, PAM Pass Through pre/post operations are called at the betxn preop/postop timing, respectivly. . Referential integrity postoperation Plugin + If betxn is on, Referential integrity post operations are called at the betxn postop timing. + When betxn is on, referential integirity post operations are in the transaction as sell as in the backend serial lock. Taking advantage of it, referint_lock is not held if betxn is on. . Miscellaneous + cos_cache.h: added '#include "ldaplog.h" and removed copied LDAPDebug from cos.c and cos_cache.c. + cos_cache.c: added missing CR at the end of some error messages. + repl5_replica.c: removed (nscpentrydn=*) from searching tombstone entry filter. + back-ldbm.h: increased RETRY_TIMES count from 50 to 1024. + entry.c: in addition to "true"|"false", "yes"|"no", and digits, let slapi_entry_attr_get_bool accept "on"|"off". + mapping_tree.c: changed the log level of a warning "Mapping tree node entry for "" point to an unknown backend" issued in mtn_get_be to BACKLDBM". This message is logged at the start up time of Class of Service plugin from the dse hook, which is benign.