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* mu-msg-iter: support reverse sorting

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This commit is contained in:
Dirk-Jan C. Binnema
2011-09-30 08:34:49 +03:00
parent ef88afc0a7
commit a936a4dab5
2 changed files with 9 additions and 7 deletions
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9
src/mu-msg-iter.cc
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@ -52,7 +52,7 @@ private:
struct _MuMsgIter { struct _MuMsgIter {
public: public:
_MuMsgIter (Xapian::Enquire &enq, size_t maxnum, _MuMsgIter (Xapian::Enquire &enq, size_t maxnum,
gboolean threads, MuMsgFieldId sortfield): gboolean threads, MuMsgFieldId sortfield, bool revert):
_enq(enq), _thread_hash (0), _msg(0) { _enq(enq), _thread_hash (0), _msg(0) {
_matches = _enq.get_mset (0, maxnum); _matches = _enq.get_mset (0, maxnum);
@ -61,7 +61,8 @@ public:
_matches.fetch(); _matches.fetch();
_thread_hash = mu_threader_calculate _thread_hash = mu_threader_calculate
(this, _matches.size(), sortfield); (this, _matches.size(), sortfield,
revert ? TRUE: FALSE);
ThreadKeyMaker keymaker(_thread_hash); ThreadKeyMaker keymaker(_thread_hash);
@ -111,7 +112,7 @@ private:
MuMsgIter* MuMsgIter*
mu_msg_iter_new (XapianEnquire *enq, size_t maxnum, mu_msg_iter_new (XapianEnquire *enq, size_t maxnum,
gboolean threads, MuMsgFieldId sortfield) gboolean threads, MuMsgFieldId sortfield, gboolean revert)
{ {
g_return_val_if_fail (enq, NULL); g_return_val_if_fail (enq, NULL);
/* sortfield should be set to .._NONE when we're not threading */ /* sortfield should be set to .._NONE when we're not threading */
@ -122,7 +123,7 @@ mu_msg_iter_new (XapianEnquire *enq, size_t maxnum,
FALSE); FALSE);
try { try {
return new MuMsgIter ((Xapian::Enquire&)*enq, maxnum, threads, return new MuMsgIter ((Xapian::Enquire&)*enq, maxnum, threads,
sortfield); sortfield, revert ? true : false);
} MU_XAPIAN_CATCH_BLOCK_RETURN(NULL); } MU_XAPIAN_CATCH_BLOCK_RETURN(NULL);
} }

7
src/mu-msg-iter.h
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@ -47,13 +47,14 @@ typedef struct _MuMsgIter MuMsgIter;
* @param threads whether to calculate threads * @param threads whether to calculate threads
* @param sorting field when using threads; note, when 'threads' is * @param sorting field when using threads; note, when 'threads' is
* FALSE, this should be MU_MSG_FIELD_ID_NONE * FALSE, this should be MU_MSG_FIELD_ID_NONE
* @param if TRUE, revert the sorting order
* *
* @return a new MuMsgIter, or NULL in case of error * @return a new MuMsgIter, or NULL in case of error
*/ */
MuMsgIter *mu_msg_iter_new (XapianEnquire *enq, MuMsgIter *mu_msg_iter_new (XapianEnquire *enq,
size_t batchsize, size_t batchsize, gboolean threads,
gboolean threads, MuMsgFieldId threadsortfield,
MuMsgFieldId threadsortfield) G_GNUC_WARN_UNUSED_RESULT; gboolean revert) G_GNUC_WARN_UNUSED_RESULT;
/** /**
* get the next message (which you got from * get the next message (which you got from