The libpmempool library
libpmempool provides a set of utilities for management, diagnostics and
repair of persistent memory pools.
By pool in this context we mean pmemobj pool, pmemblk pool, pmemlog pool or
BTT layout, independent of the underlying storage.
The libpmempool is for applications that need high reliability or built-in
troubleshooting. It may be useful for testing and debugging purposes also.
Man pages that contains a list of the Linux interfaces provided:
Man pages that contains a list of the Windows interfaces provided:
libpmempool Examples
More Detail Coming Soon
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
| #include <stddef.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <libpmempool.h>
#define PATH "./pmem-fs/myfile"
#define CHECK_FLAGS (PMEMPOOL_CHECK_FORMAT_STR|PMEMPOOL_CHECK_REPAIR|\
PMEMPOOL_CHECK_VERBOSE)
int
main(int argc, char *argv[])
{
PMEMpoolcheck *ppc;
struct pmempool_check_status *status;
enum pmempool_check_result ret;
/* arguments for check */
struct pmempool_check_args args = {
.path = PATH,
.backup_path = NULL,
.pool_type = PMEMPOOL_POOL_TYPE_DETECT,
.flags = CHECK_FLAGS
};
/* initialize check context */
if ((ppc = pmempool_check_init(&args, sizeof(args))) == NULL) {
perror("pmempool_check_init");
exit(EXIT_FAILURE);
}
/* perform check and repair, answer 'yes' for each question */
while ((status = pmempool_check(ppc)) != NULL) {
switch (status->type) {
case PMEMPOOL_CHECK_MSG_TYPE_ERROR:
printf("%s\n", status->str.msg);
break;
case PMEMPOOL_CHECK_MSG_TYPE_INFO:
printf("%s\n", status->str.msg);
break;
case PMEMPOOL_CHECK_MSG_TYPE_QUESTION:
printf("%s\n", status->str.msg);
status->str.answer = "yes";
break;
default:
pmempool_check_end(ppc);
exit(EXIT_FAILURE);
}
}
/* finalize the check and get the result */
ret = pmempool_check_end(ppc);
switch (ret) {
case PMEMPOOL_CHECK_RESULT_CONSISTENT:
case PMEMPOOL_CHECK_RESULT_REPAIRED:
return 0;
default:
return 1;
}
}
|
