#include <config.h>#include "multimatch.h"#include "submatch.h"#include "localmatch.h"#include "emptysubmatch.h"#include "omdebug.h"#include "omenquireinternal.h"#include "emptypostlist.h"#include "branchpostlist.h"#include "leafpostlist.h"#include "mergepostlist.h"#include "document.h"#include "omqueryinternal.h"#include "stats.h"#include "msetcmp.h"#include <xapian/errorhandler.h>#include <xapian/version.h>#include "remotesubmatch.h"#include "remote-database.h"#include <algorithm>#include <cfloat>#include <queue>#include <vector>#include <map>#include <set>Include dependency graph for multimatch.cc:
Go to the source code of this file.
Functions | |
| static void | split_rset_by_db (const Xapian::RSet *rset, Xapian::doccount number_of_subdbs, vector< Xapian::RSet > &subrsets) |
| Split an RSet into several sub rsets, one for each database. | |
| static void | prepare_sub_matches (std::vector< Xapian::Internal::RefCntPtr< SubMatch > > &leaves, Xapian::ErrorHandler *errorhandler, Stats &stats) |
| Prepare some SubMatches. | |
Variables | |
| const Xapian::Enquire::Internal::sort_setting | REL |
| const Xapian::Enquire::Internal::sort_setting | REL_VAL |
| const Xapian::Enquire::Internal::sort_setting | VAL |
| static void split_rset_by_db | ( | const Xapian::RSet * | rset, | |
| Xapian::doccount | number_of_subdbs, | |||
| vector< Xapian::RSet > & | subrsets | |||
| ) | [static] |
Split an RSet into several sub rsets, one for each database.
| rset | The RSet to split. | |
| number_of_subdbs | The number of sub databases which exist. | |
| subrsets | Vector of RSets which will the sub rsets will be placed in. This should be empty when the function is called. |
Definition at line 84 of file multimatch.cc.
References Assert, DEBUGCALL_STATIC, and Xapian::RSet::internal.
Referenced by MultiMatch::MultiMatch().
| static void prepare_sub_matches | ( | std::vector< Xapian::Internal::RefCntPtr< SubMatch > > & | leaves, | |
| Xapian::ErrorHandler * | errorhandler, | |||
| Stats & | stats | |||
| ) | [static] |
Prepare some SubMatches.
This calls the prepare_match() method on each SubMatch object, causing them to lookup various statistics.
This method is rather complicated in order to handle remote matches efficiently. Instead of simply calling "prepare_match()" on each submatch and waiting for it to return, it first calls "prepare_match(true)" on each submatch. If any of these calls return false, indicating that the required information has not yet been received from the server, the method will try those which returned false again, passing "false" as a parameter to indicate that they should block until the information is ready.
This should improve performance in the case of mixed local-and-remote searches - the local searchers will all fetch their statistics from disk without waiting for the remote searchers, so as soon as the remote searcher statistics arrive, we can move on to the next step.
Definition at line 138 of file multimatch.cc.
References DEBUGCALL_STATIC, and DEBUGLINE.
Referenced by MultiMatch::MultiMatch().
Initial value:
Definition at line 65 of file multimatch.cc.
Referenced by MultiMatch::get_mset(), and MultiMatch::MultiMatch().
Initial value:
Definition at line 67 of file multimatch.cc.
Referenced by MultiMatch::get_mset(), and MultiMatch::MultiMatch().