blob: 9a94edb873a753a57bd0f4900d137d4214864bbc (
plain)
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
110
111
112
113
114
115
116
117
118
|
#include "conf.h"
#include "cdb.h"
#include "log.h"
#include "memdb.h"
#include "mysqldb.h"
#include "thread.h"
#include "periodic.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
RCSID("$Id: periodic.c,v 1.9 2000/05/17 21:52:34 shmit Exp $");
struct _per_thread_t {
cond_t *cond;
thread_t *tid;
};
typedef struct _per_thread_t per_thread_t;
static void *
periodic_looper(void *arg)
{
per_thread_t *self;
int count;
self = (per_thread_t *)arg;
pthread_detach(pthread_self());
count = 0;
for (;;) {
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
ts.tv_sec += 1;
(void)cond_timedwait(self->cond, &ts);
count++;
if (count == PERIODICITY) {
cdb_periodic();
count = 0;
}
cdb_collate();
mysqldb_collate();
memdb_collate();
}
return NULL;
}
void
periodic_delete(per_thread_t *thr)
{
if (thr == NULL)
return;
if (thr->cond) {
cond_destroy(thr->cond);
free(thr->cond);
thr->cond = NULL;
}
if (thr->tid) {
free(thr->tid);
thr->tid = NULL;
}
free(thr);
}
int
periodic_new()
{
per_thread_t *per_thread;
int rc;
per_thread = malloc(sizeof(per_thread_t));
if (per_thread == NULL) {
log_err("Couldn't allocate periodic thread: %s.",
strerror(errno));
return -1;
}
per_thread->cond = NULL;
per_thread->tid = NULL;
per_thread->cond = malloc(sizeof(cond_t));
if (per_thread->cond == NULL) {
log_err("Couldn't allocate periodic condition: %s.",
strerror(errno));
periodic_delete(per_thread);
return -1;
}
rc = cond_new(per_thread->cond);
if (rc) {
log_err("Couldn't initialise periodic condition: %s.",
strerror(rc));
periodic_delete(per_thread);
return -1;
}
per_thread->tid = malloc(sizeof(thread_t));
if (per_thread->tid == NULL) {
log_err("Couldn't allocate periodic thread: %s.",
strerror(rc));
periodic_delete(per_thread);
return -1;
}
rc = thread_new(per_thread->tid, periodic_looper, per_thread);
if (rc) {
log_err("Couldn't start periodic thread: %s.",
strerror(rc));
periodic_delete(per_thread);
return -1;
}
return 0;
}
|
