1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
// ============================================================================
// $Id$
//
// = LIBRARY
// orbsvcs
//
// = FILENAME
// Offer_Iterators_T.cpp
//
// = AUTHOR
// Marina Spivak <marina@cs.wustl.edu>
// Seth Widoff <sbw1@cs.wustl.edu>
// Irfan Pyarali <irfan@cs.wustl.edu>
// ============================================================================
#if !defined (TAO_OFFER_ITERATORS_T_C)
#define TAO_OFFER_ITERATORS_T_C
#include "Offer_Iterators_T.h"
ACE_RCSID(Trader, Offer_Iterators_T, "$Id$")
template <class MAP_LOCK_TYPE>
TAO_Register_Offer_Iterator<MAP_LOCK_TYPE>::
TAO_Register_Offer_Iterator (TAO_Offer_Database<MAP_LOCK_TYPE> &db,
const TAO_Property_Filter& pfilter)
: TAO_Offer_Iterator (pfilter),
db_ (db)
{
}
template <class MAP_LOCK_TYPE>
TAO_Register_Offer_Iterator<MAP_LOCK_TYPE>::
~TAO_Register_Offer_Iterator (void)
{
while (! this->offer_ids_.is_empty ())
{
CosTrading::OfferId offer_id = 0;
this->offer_ids_.dequeue_head (offer_id);
CORBA::string_free (offer_id);
}
}
template <class MAP_LOCK_TYPE> void
TAO_Register_Offer_Iterator<MAP_LOCK_TYPE>::
add_offer (CosTrading::OfferId id,
const CosTrading::Offer* offer)
{
this->offer_ids_.enqueue_tail (id);
}
template <class MAP_LOCK_TYPE> CORBA::ULong
TAO_Register_Offer_Iterator<MAP_LOCK_TYPE>::
max_left (CORBA::Environment& _env)
TAO_THROW_SPEC ((CORBA::SystemException,
CosTrading::UnknownMaxLeft))
{
return this->offer_ids_.size ();
}
template <class MAP_LOCK_TYPE> CORBA::Boolean
TAO_Register_Offer_Iterator<MAP_LOCK_TYPE>::
next_n (CORBA::ULong n,
CosTrading::OfferSeq_out offers,
CORBA::Environment& _env)
TAO_THROW_SPEC ((CORBA::SystemException))
{
CORBA::ULong ret_offers = 0;
CORBA::ULong max_possible_offers_in_sequence =
(n < this->offer_ids_.size ()) ? n : this->offer_ids_.size ();
ACE_NEW_RETURN (offers, CosTrading::OfferSeq, 0);
offers->length (max_possible_offers_in_sequence);
// While there are entries left and we haven't filled <offers>
// with requested number.
while (! this->offer_ids_.is_empty ()
&& n > ret_offers)
{
// If offer is found, put it into the sequence.
// remove this id irrespective of whether the offer is found
// or not.
CosTrading::OfferId id;
this->offer_ids_.dequeue_head (id);
TAO_TRY
{
CosTrading::OfferId_var offerid_var (id);
CosTrading::Offer* offer = this->db_.lookup_offer (id, TAO_TRY_ENV);
TAO_CHECK_ENV;
if (offer != 0)
this->pfilter_.filter_offer (offer, offers[ret_offers++]);
}
TAO_CATCHANY {}
TAO_ENDTRY;
}
// Reset the length to the correct value
offers->length (ret_offers);
return ACE_static_cast (CORBA::Boolean, ret_offers != 0);
}
#endif /* TAO_REGISTER_OFFER_ITERATOR_C */
|
