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91fcc471 TJ |
1 | /* |
2 | The software in this package is distributed under the GNU General | |
3 | Public License version 2 (with a special exception described below). | |
4 | ||
5 | A copy of GNU General Public License (GPL) is included in this distribution, | |
6 | in the file COPYING.GPL. | |
7 | ||
8 | As a special exception, if other files instantiate templates or use macros | |
9 | or inline functions from this file, or you compile this file and link it | |
10 | with other works to produce a work based on this file, this file | |
11 | does not by itself cause the resulting work to be covered | |
12 | by the GNU General Public License. | |
13 | ||
14 | However the source code for this file must still be made available | |
15 | in accordance with section (3) of the GNU General Public License. | |
16 | ||
17 | This exception does not invalidate any other reasons why a work based | |
18 | on this file might be covered by the GNU General Public License. | |
19 | */ | |
72e54d1c GMF |
20 | #ifndef LINK_STATUS_H |
21 | #define LINK_STATUS_H | |
ddf41c89 | 22 | |
1266407a | 23 | #include <set> |
ddf41c89 GMF |
24 | #include <string> |
25 | ||
f1bf3249 | 26 | #include <boost/asio.hpp> |
b09ac07d | 27 | #include <boost/shared_ptr.hpp> |
f1bf3249 | 28 | |
8f66f529 | 29 | #include "link/statusnotifiercommand.h" |
b279ae09 | 30 | |
ddf41c89 | 31 | //----------------------------------------------------------------------------- |
72e54d1c | 32 | // LinkStatus |
ddf41c89 GMF |
33 | //----------------------------------------------------------------------------- |
34 | ||
c1fff16a | 35 | /** |
fb469ffa GMF |
36 | * @brief This class analyzes and notifies the link status, through keeping |
37 | * track of the amount of hosts down. | |
c1fff16a GMF |
38 | * Scope: one object for many hosts. |
39 | */ | |
72e54d1c | 40 | class LinkStatus |
ddf41c89 GMF |
41 | { |
42 | public: | |
72e54d1c | 43 | LinkStatus( |
a341119a | 44 | const int hosts_down_limit, |
97837af8 CH |
45 | const int link_up_interval_in_sec, |
46 | const int link_down_interval_in_sec, | |
c1fff16a GMF |
47 | const std::string &status_notifier_cmd |
48 | ); | |
72e54d1c | 49 | ~LinkStatus(); |
ddf41c89 | 50 | |
feb02c46 GMF |
51 | void notify_host_up( const std::string &host_address ); |
52 | void notify_host_down( const std::string &host_address ); | |
1266407a GMF |
53 | |
54 | private: | |
010b8519 GMF |
55 | // |
56 | // Types | |
57 | // | |
58 | ||
72e54d1c | 59 | enum Status |
f1bf3249 | 60 | { |
72e54d1c GMF |
61 | Status_Up, |
62 | Status_Down | |
f1bf3249 GMF |
63 | }; |
64 | ||
65 | enum NotificationStatus | |
66 | { | |
67 | NotificationStatus_NotReported, | |
68 | NotificationStatus_Reported | |
69 | }; | |
70 | ||
c5db9dfd GMF |
71 | #ifdef UNDER_TEST |
72 | public: | |
c5db9dfd | 73 | #endif |
010b8519 GMF |
74 | // |
75 | // Methods | |
76 | // | |
77 | ||
f5ffc5df | 78 | bool add_host_up( const std::string &host_address ); |
1266407a | 79 | void add_host_down( const std::string &host_address ); |
b279ae09 | 80 | |
a341119a | 81 | bool exceeded_host_down_limit() const; |
ddf41c89 | 82 | |
fb469ffa GMF |
83 | void notify_link_up(); |
84 | void notify_link_down(); | |
b279ae09 | 85 | |
f1bf3249 | 86 | bool is_link_up_enough_time() const; |
1634f2a1 | 87 | bool is_link_down_enough_time() const; |
f1bf3249 GMF |
88 | |
89 | bool can_report_link_status() const; | |
90 | void set_link_status( | |
72e54d1c | 91 | const LinkStatus::Status new_link_status |
f1bf3249 GMF |
92 | ); |
93 | ||
010b8519 GMF |
94 | // |
95 | // Attributes | |
96 | // | |
97 | ||
72e54d1c | 98 | /// The maximum amount of hosts which can be down before sound the alarm |
a341119a | 99 | const int HostsDownLimit; |
72e54d1c | 100 | /// List of hosts down (obvious isn't it?) |
1266407a | 101 | std::set<std::string> HostsDownList; |
72e54d1c | 102 | /// Interval the link have to be stable in order to consider it is functional |
97837af8 | 103 | const int LinkUpIntervalInSec; |
72e54d1c | 104 | /// Interval the link have to be down in order to consider it is non-functional |
97837af8 | 105 | const int LinkDownIntervalInSec; |
72e54d1c GMF |
106 | /// Keep track of the actual link status |
107 | LinkStatus::Status CurrentLinkStatus; | |
108 | /// Indicates if the last link status change was notified | |
109 | LinkStatus::NotificationStatus CurrentNotificationStatus; | |
110 | /// When was the last time the status changed | |
f1bf3249 | 111 | boost::posix_time::ptime TimeLinkStatusChanged; |
72e54d1c | 112 | /// Command used to notify the status of the link |
709ded82 | 113 | StatusNotifierCommandItem StatusNotifierCmd; |
ddf41c89 GMF |
114 | |
115 | }; | |
116 | ||
b09ac07d | 117 | //----------------------------------------------------------------------------- |
72e54d1c | 118 | // LinkStatusItem |
b09ac07d GMF |
119 | //----------------------------------------------------------------------------- |
120 | ||
72e54d1c | 121 | typedef boost::shared_ptr<LinkStatus> LinkStatusItem; |
b09ac07d | 122 | |
72e54d1c | 123 | #endif // LINK_STATUS_H |