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
108
109
|
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <config.h>
#include <algorithm>
#include <drizzled/errmsg_print.h>
#include <drizzled/gettext.h>
#include <drizzled/plugin/scheduler.h>
namespace drizzled
{
extern size_t my_thread_stack_size;
std::vector<plugin::Scheduler *> all_schedulers;
/* Globals (TBK) */
static plugin::Scheduler *scheduler= NULL;
class FindSchedulerByName : public std::unary_function<plugin::Scheduler *, bool>
{
const std::string *name;
public:
FindSchedulerByName(const std::string *name_arg)
: name(name_arg) {}
result_type operator() (argument_type sched)
{
return (bool)((name->compare(sched->getName()) == 0));
}
};
bool plugin::Scheduler::addPlugin(plugin::Scheduler *sched)
{
std::vector<plugin::Scheduler *>::iterator iter=
std::find_if(all_schedulers.begin(), all_schedulers.end(),
FindSchedulerByName(&sched->getName()));
if (iter != all_schedulers.end())
{
errmsg_printf(error::ERROR,
_("Attempted to register a scheduler %s, but a scheduler "
"has already been registered with that name.\n"),
sched->getName().c_str());
return true;
}
sched->deactivate();
all_schedulers.push_back(sched);
return false;
}
void plugin::Scheduler::removePlugin(plugin::Scheduler *sched)
{
all_schedulers.erase(std::find(all_schedulers.begin(),
all_schedulers.end(),
sched));
}
bool plugin::Scheduler::setPlugin(const std::string& name)
{
std::vector<plugin::Scheduler *>::iterator iter=
std::find_if(all_schedulers.begin(), all_schedulers.end(),
FindSchedulerByName(&name));
if (iter != all_schedulers.end())
{
if (scheduler != NULL)
scheduler->deactivate();
scheduler= *iter;
scheduler->activate();
return false;
}
errmsg_printf(error::WARN,
_("Attempted to configure %s as the scheduler, which did "
"not exist.\n"), name.c_str());
return true;
}
plugin::Scheduler *plugin::Scheduler::getScheduler()
{
return scheduler;
}
} /* namespace drizzled */
|