optimize { uid => srec } flathash
the sync records contain the uid, so storing it explicitly doubles the hash's size for no good reason.
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parent
8f4af5f78f
commit
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19
src/sync.c
19
src/sync.c
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@ -810,11 +810,6 @@ typedef struct {
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int aflags, dflags;
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} flag_vars_t;
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typedef struct {
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uint uid;
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sync_rec_t *srec;
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} sync_rec_map_t;
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static void flags_set( int sts, void *aux );
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static void flags_set_p2( sync_vars_t *svars, sync_rec_t *srec, int t );
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static void msgs_flags_set( sync_vars_t *svars, int t );
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@ -825,8 +820,7 @@ static void
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box_loaded( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux )
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{
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DECL_SVARS;
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sync_rec_t *srec;
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sync_rec_map_t *srecmap;
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sync_rec_t *srec, **srecmap;
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message_t *tmsg;
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flag_vars_t *fv;
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int no[2], del[2], alive, todel;
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@ -856,22 +850,19 @@ box_loaded( int sts, message_t *msgs, int total_msgs, int recent_msgs, void *aux
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if (!uid)
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continue;
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idx = (uint)(uid * 1103515245U) % hashsz;
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while (srecmap[idx].uid)
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while (srecmap[idx])
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if (++idx == hashsz)
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idx = 0;
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srecmap[idx].uid = uid;
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srecmap[idx].srec = srec;
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srecmap[idx] = srec;
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}
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for (tmsg = svars->msgs[t]; tmsg; tmsg = tmsg->next) {
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if (tmsg->srec) /* found by TUID */
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continue;
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uint uid = tmsg->uid;
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idx = (uint)(uid * 1103515245U) % hashsz;
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while (srecmap[idx].uid) {
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if (srecmap[idx].uid == uid) {
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srec = srecmap[idx].srec;
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while ((srec = srecmap[idx])) {
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if (srec->uid[t] == uid)
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goto found;
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}
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if (++idx == hashsz)
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idx = 0;
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}
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