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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Chunk I/O
* =========
* Copyright 2018 Eduardo Silva <eduardo@monkey.io>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <chunkio/chunkio_compat.h>
#include <chunkio/chunkio.h>
#include <chunkio/cio_stream.h>
#include <chunkio/cio_file.h>
#include <chunkio/cio_memfs.h>
#include <chunkio/cio_chunk.h>
#include <chunkio/cio_error.h>
#include <chunkio/cio_log.h>
#ifdef _WIN32
#include "win32/dirent.h"
#endif
#ifdef CIO_HAVE_BACKEND_FILESYSTEM
static int cio_scan_stream_files(struct cio_ctx *ctx, struct cio_stream *st,
char *chunk_extension)
{
int len;
int ret;
int err;
int ext_off;
int ext_len = 0;
char *path;
DIR *dir;
struct dirent *ent;
len = strlen(ctx->options.root_path) + strlen(st->name) + 2;
path = malloc(len);
if (!path) {
cio_errno();
return -1;
}
ret = snprintf(path, len, "%s/%s", ctx->options.root_path, st->name);
if (ret == -1) {
cio_errno();
free(path);
return -1;
}
dir = opendir(path);
if (!dir) {
cio_errno();
free(path);
return -1;
}
if (chunk_extension) {
ext_len = strlen(chunk_extension);
}
cio_log_debug(ctx, "[cio scan] opening stream %s", st->name);
/* Iterate the root_path */
while ((ent = readdir(dir)) != NULL) {
if ((ent->d_name[0] == '.') || (strcmp(ent->d_name, "..") == 0)) {
continue;
}
/* Look just for directories */
if (ent->d_type != DT_REG) {
continue;
}
/* Check the file matches the desired extension (if set) */
if (chunk_extension) {
len = strlen(ent->d_name);
if (len <= ext_len) {
continue;
}
ext_off = len - ext_len;
if (strncmp(ent->d_name + ext_off, chunk_extension, ext_len) != 0) {
continue;
}
}
ctx->last_chunk_error = 0;
/* register every directory as a stream */
cio_chunk_open(ctx, st, ent->d_name, ctx->options.flags, 0, &err);
if (ctx->options.flags & CIO_DELETE_IRRECOVERABLE) {
if (err == CIO_CORRUPTED) {
if (ctx->last_chunk_error == CIO_ERR_BAD_FILE_SIZE ||
ctx->last_chunk_error == CIO_ERR_BAD_LAYOUT)
{
cio_log_error(ctx, "[cio scan] discarding irrecoverable chunk");
cio_chunk_delete(ctx, st, ent->d_name);
}
}
}
}
closedir(dir);
free(path);
return 0;
}
/* Given a cio context, scan it root_path and populate stream/files */
int cio_scan_streams(struct cio_ctx *ctx, char *chunk_extension)
{
DIR *dir;
struct dirent *ent;
struct cio_stream *st;
dir = opendir(ctx->options.root_path);
if (!dir) {
cio_errno();
return -1;
}
cio_log_debug(ctx, "[cio scan] opening path %s", ctx->options.root_path);
/* Iterate the root_path */
while ((ent = readdir(dir)) != NULL) {
if ((ent->d_name[0] == '.') || (strcmp(ent->d_name, "..") == 0)) {
continue;
}
/* Look just for directories */
if (ent->d_type != DT_DIR) {
continue;
}
/* register every directory as a stream */
st = cio_stream_create(ctx, ent->d_name, CIO_STORE_FS);
if (st) {
cio_scan_stream_files(ctx, st, chunk_extension);
}
}
closedir(dir);
return 0;
}
#else
int cio_scan_streams(struct cio_ctx *ctx)
{
cio_log_error(ctx, "[cio scan] file system backend not supported");
return -1;
}
#endif
void cio_scan_dump(struct cio_ctx *ctx)
{
struct mk_list *head;
struct cio_stream *st;
cio_log_info(ctx, "scan dump of %s", ctx->options.root_path);
/* Iterate streams */
mk_list_foreach(head, &ctx->streams) {
st = mk_list_entry(head, struct cio_stream, _head);
printf(" stream:%-60s%i chunks\n",
st->name, mk_list_size(&st->chunks));
if (st->type == CIO_STORE_MEM) {
cio_memfs_scan_dump(ctx, st);
}
else if (st->type == CIO_STORE_FS) {
cio_file_scan_dump(ctx, st);
}
}
}
|
