document message expiration transactions

This commit is contained in:
Oswald Buddenhagen 2013-11-17 17:36:08 +01:00
parent ecb4c7ab07
commit 8b76412b0d

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@ -1383,13 +1383,20 @@ box_loaded( int sts, void *aux )
continue;
nex = (srec->status / S_NEXPIRE) & 1;
if (nex != ((srec->status / S_EXPIRED) & 1)) {
/* The record needs a state change ... */
if (nex != ((srec->status / S_EXPIRE) & 1)) {
/* ... and we need to start a transaction. */
Fprintf( svars->jfp, "~ %d %d %d\n", srec->uid[M], srec->uid[S], nex );
debug( " pair(%d,%d): %d (pre)\n", srec->uid[M], srec->uid[S], nex );
srec->status = (srec->status & ~S_EXPIRE) | (nex * S_EXPIRE);
} else
} else {
/* ... but the "right" transaction is already pending. */
debug( " pair(%d,%d): %d (pending)\n", srec->uid[M], srec->uid[S], nex );
}
} else {
/* Note: the "wrong" transaction may be pending here,
* e.g.: S_NEXPIRE = 0, S_EXPIRE = 1, S_EXPIRED = 0. */
}
}
}
@ -1408,8 +1415,9 @@ box_loaded( int sts, void *aux )
continue;
}
} else {
/* The trigger is an expiration transaction being ongoing ... */
if ((t == S) && ((mvBit(srec->status, S_EXPIRE, S_EXPIRED) ^ srec->status) & S_EXPIRED)) {
/* Derive deletion action from expiration state. */
/* ... but the actual action derives from the wanted state. */
if (srec->status & S_NEXPIRE)
aflags |= F_DELETED;
else