xref: /freebsd/contrib/kyua/store/read_transaction.hpp (revision 02e9120893770924227138ba49df1edb3896112a)
1 // Copyright 2011 The Kyua Authors.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
6 // met:
7 //
8 // * Redistributions of source code must retain the above copyright
9 //   notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above copyright
11 //   notice, this list of conditions and the following disclaimer in the
12 //   documentation and/or other materials provided with the distribution.
13 // * Neither the name of Google Inc. nor the names of its contributors
14 //   may be used to endorse or promote products derived from this software
15 //   without specific prior written permission.
16 //
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 
29 /// \file store/read_transaction.hpp
30 /// Implementation of read-only transactions on the backend.
31 
32 #if !defined(STORE_READ_TRANSACTION_HPP)
33 #define STORE_READ_TRANSACTION_HPP
34 
35 #include "store/read_transaction_fwd.hpp"
36 
37 extern "C" {
38 #include <stdint.h>
39 }
40 
41 #include <memory>
42 #include <string>
43 
44 #include "model/context_fwd.hpp"
45 #include "model/test_program_fwd.hpp"
46 #include "model/test_result_fwd.hpp"
47 #include "store/read_backend_fwd.hpp"
48 #include "store/read_transaction_fwd.hpp"
49 #include "utils/datetime_fwd.hpp"
50 
51 namespace store {
52 
53 
54 namespace detail {
55 
56 
57 model::test_program_ptr get_test_program(read_backend&, const int64_t);
58 
59 
60 }  // namespace detail
61 
62 
63 /// Iterator for the set of test case results that are part of an action.
64 ///
65 /// \todo Note that this is not a "standard" C++ iterator.  I have chosen to
66 /// implement a different interface because it makes things easier to represent
67 /// an SQL statement state.  Rewrite as a proper C++ iterator, inheriting from
68 /// std::iterator.
69 class results_iterator {
70     struct impl;
71 
72     /// Pointer to the shared internal implementation.
73     std::shared_ptr< impl > _pimpl;
74 
75     friend class read_transaction;
76     results_iterator(std::shared_ptr< impl >);
77 
78 public:
79     ~results_iterator(void);
80 
81     results_iterator& operator++(void);
82     operator bool(void) const;
83 
84     const model::test_program_ptr test_program(void) const;
85     std::string test_case_name(void) const;
86     model::test_result result(void) const;
87     utils::datetime::timestamp start_time(void) const;
88     utils::datetime::timestamp end_time(void) const;
89 
90     std::string stdout_contents(void) const;
91     std::string stderr_contents(void) const;
92 };
93 
94 
95 /// Representation of a read-only transaction.
96 ///
97 /// Transactions are the entry place for high-level calls that access the
98 /// database.
99 class read_transaction {
100     struct impl;
101 
102     /// Pointer to the shared internal implementation.
103     std::shared_ptr< impl > _pimpl;
104 
105     friend class read_backend;
106     read_transaction(read_backend&);
107 
108 public:
109     ~read_transaction(void);
110 
111     void finish(void);
112 
113     model::context get_context(void);
114     results_iterator get_results(void);
115 };
116 
117 
118 }  // namespace store
119 
120 #endif  // !defined(STORE_READ_TRANSACTION_HPP)
121