author | Tero Marttila <terom@fixme.fi> |
Wed, 22 Oct 2008 18:14:24 +0300 | |
changeset 38 | 1fd4da071575 |
parent 37 | c3880f3b4de8 |
child 40 | 03017f5f0087 |
permissions | -rw-r--r-- |
32 | 1 |
#include "dbfs.h" |
2 |
||
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3 |
/* |
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4 |
* Handling simple ino-related ops, like lookup, readlink, unlink and link |
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5 |
*/ |
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6 |
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32 | 7 |
#include "../lib/log.h" |
38
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8 |
#include "../lib/misc.h" |
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9 |
|
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10 |
/* |
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11 |
* Used for lookup and link |
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12 |
*/ |
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13 |
void dbfs_entry_res (const struct evsql_result_info *res, void *arg) { |
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14 |
struct fuse_req *req = arg; |
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15 |
struct fuse_entry_param e; ZINIT(e); |
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16 |
int err = 0; |
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17 |
|
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18 |
uint32_t ino; |
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19 |
|
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20 |
// check the results |
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21 |
if ((err = _dbfs_check_res(res, 1, 5))) |
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22 |
SERROR(err = (err == 1 ? ENOENT : EIO)); |
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23 |
|
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24 |
// get the data |
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25 |
if (0 |
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26 |
|| evsql_result_uint32(res, 0, 0, &ino, 0 ) // inodes.ino |
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27 |
) |
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28 |
EERROR(err = EIO, "invalid db data"); |
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29 |
|
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30 |
INFO("\t[dbfs.lookup] -> ino=%u", ino); |
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31 |
|
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32 |
// stat attrs |
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33 |
if ((err = _dbfs_stat_info(&e.attr, res, 0, 1))) |
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34 |
goto error; |
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35 |
|
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36 |
// other attrs |
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37 |
e.ino = e.attr.st_ino = ino; |
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38 |
e.attr_timeout = CACHE_TIMEOUT; |
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39 |
e.entry_timeout = CACHE_TIMEOUT; |
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40 |
|
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41 |
// reply |
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42 |
if ((err = fuse_reply_entry(req, &e))) |
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43 |
EERROR(err, "fuse_reply_entry"); |
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44 |
|
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45 |
error: |
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46 |
if (err && (err = fuse_reply_err(req, err))) |
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47 |
EWARNING(err, "fuse_reply_err"); |
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48 |
|
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49 |
// free |
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50 |
evsql_result_free(res); |
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51 |
} |
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52 |
|
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53 |
void dbfs_lookup (struct fuse_req *req, fuse_ino_t parent, const char *name) { |
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54 |
struct dbfs *ctx = fuse_req_userdata(req); |
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55 |
int err; |
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56 |
|
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57 |
INFO("[dbfs.lookup] parent=%lu name=%s", parent, name); |
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58 |
|
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59 |
// query and params |
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60 |
const char *sql = |
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61 |
"SELECT" |
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62 |
" inodes.ino, " DBFS_STAT_COLS |
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63 |
" FROM file_tree INNER JOIN inodes ON (file_tree.ino = inodes.ino)" |
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64 |
" WHERE file_tree.parent = $1::int4 AND file_tree.name = $2::varchar"; |
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65 |
|
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66 |
static struct evsql_query_params params = EVSQL_PARAMS(EVSQL_FMT_BINARY) { |
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67 |
EVSQL_PARAM ( UINT32 ), |
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68 |
EVSQL_PARAM ( STRING ), |
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69 |
|
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70 |
EVSQL_PARAMS_END |
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71 |
}; |
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72 |
|
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73 |
// build params |
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74 |
if (0 |
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75 |
|| evsql_param_uint32(¶ms, 0, parent) |
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76 |
|| evsql_param_string(¶ms, 1, name) |
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77 |
) |
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78 |
EERROR(err = EIO, "evsql_param_*"); |
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79 |
|
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80 |
// query |
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81 |
if (evsql_query_params(ctx->db, NULL, sql, ¶ms, dbfs_entry_res, req) == NULL) |
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82 |
EERROR(err = EIO, "evsql_query_params"); |
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83 |
|
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84 |
// XXX: handle interrupts |
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85 |
|
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86 |
// wait |
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87 |
return; |
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88 |
|
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89 |
error: |
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90 |
if ((err = fuse_reply_err(req, err))) |
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91 |
EWARNING(err, "fuse_reply_err"); |
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92 |
} |
32 | 93 |
|
94 |
void _dbfs_readlink_res (const struct evsql_result_info *res, void *arg) { |
|
95 |
struct fuse_req *req = arg; |
|
96 |
int err = 0; |
|
97 |
||
98 |
uint32_t ino; |
|
99 |
const char *type, *link; |
|
100 |
||
101 |
// check the results |
|
102 |
if ((err = _dbfs_check_res(res, 1, 3))) |
|
103 |
SERROR(err = (err == 1 ? ENOENT : EIO)); |
|
104 |
||
105 |
// get our data |
|
106 |
if (0 |
|
107 |
|| evsql_result_uint32(res, 0, 0, &ino, 0 ) // inodes.ino |
|
108 |
|| evsql_result_string(res, 0, 1, &type, 0 ) // inodes.type |
|
33 | 109 |
|| evsql_result_string(res, 0, 2, &link, 1 ) // inodes.link_path |
32 | 110 |
) |
111 |
EERROR(err = EIO, "invalid db data"); |
|
112 |
||
113 |
// is it a symlink? |
|
114 |
if (_dbfs_mode(type) != S_IFLNK) |
|
115 |
EERROR(err = EINVAL, "wrong type: %s", type); |
|
116 |
||
36
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117 |
INFO("\t[dbfs.readlink %p] -> ino=%lu, type=%s, link=%s", req, (unsigned long int) ino, type, link); |
32 | 118 |
|
119 |
// reply |
|
120 |
if ((err = fuse_reply_readlink(req, link))) |
|
121 |
EERROR(err, "fuse_reply_readlink"); |
|
122 |
||
123 |
error: |
|
124 |
if (err && (err = fuse_reply_err(req, err))) |
|
125 |
EWARNING(err, "fuse_reply_err"); |
|
126 |
||
127 |
// free |
|
128 |
evsql_result_free(res); |
|
129 |
} |
|
130 |
||
131 |
void dbfs_readlink (struct fuse_req *req, fuse_ino_t ino) { |
|
132 |
struct dbfs *ctx = fuse_req_userdata(req); |
|
133 |
int err; |
|
134 |
||
135 |
INFO("[dbfs.readlink %p] ino=%lu", req, ino); |
|
136 |
||
137 |
const char *sql = |
|
138 |
"SELECT" |
|
33 | 139 |
" inodes.ino, inodes.type, inodes.link_path" |
32 | 140 |
" FROM inodes" |
141 |
" WHERE inodes.ino = $1::int4"; |
|
142 |
||
143 |
static struct evsql_query_params params = EVSQL_PARAMS(EVSQL_FMT_BINARY) { |
|
144 |
EVSQL_PARAM ( UINT32 ), |
|
145 |
||
146 |
EVSQL_PARAMS_END |
|
147 |
}; |
|
148 |
||
149 |
// build params |
|
150 |
if (0 |
|
151 |
|| evsql_param_uint32(¶ms, 0, ino) |
|
152 |
) |
|
153 |
SERROR(err = EIO); |
|
154 |
||
155 |
// query |
|
156 |
if (evsql_query_params(ctx->db, NULL, sql, ¶ms, _dbfs_readlink_res, req) == NULL) |
|
157 |
SERROR(err = EIO); |
|
158 |
||
159 |
// XXX: handle interrupts |
|
160 |
||
161 |
// wait |
|
162 |
return; |
|
163 |
||
164 |
error: |
|
165 |
if ((err = fuse_reply_err(req, err))) |
|
166 |
EWARNING(err, "fuse_reply_err"); |
|
167 |
||
168 |
} |
|
33 | 169 |
|
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|
170 |
#define SETERR(err_var, err_val, bool_val) ((err_var) = bool_val ? (err_val) : 0) |
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|
171 |
|
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|
172 |
void dbfs_unlink_res (const struct evsql_result_info *res, void *arg) { |
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173 |
struct fuse_req *req = arg; |
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|
174 |
int err = 0; |
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|
175 |
|
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|
176 |
// check the results |
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|
177 |
// XXX: reply with ENOTEMPTY if it fails due to this inode being a dir |
36
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178 |
if ((err = dbfs_check_result(res, 1, 0))) |
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179 |
goto error; |
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|
180 |
|
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|
181 |
INFO("\t[dbfs.unlink %p] -> OK", req); |
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|
182 |
|
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|
183 |
// reply |
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|
184 |
if ((err = fuse_reply_err(req, 0))) |
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|
185 |
EERROR(err, "fuse_reply_readlink"); |
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|
186 |
|
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|
187 |
error: |
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|
188 |
if (err && (err = fuse_reply_err(req, err))) |
56427f22e969
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|
189 |
EWARNING(err, "fuse_reply_err"); |
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|
190 |
|
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|
191 |
// free |
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|
192 |
evsql_result_free(res); |
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|
193 |
} |
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changeset
|
194 |
|
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changeset
|
195 |
void dbfs_unlink (struct fuse_req *req, fuse_ino_t parent, const char *name) { |
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|
196 |
struct dbfs *ctx = fuse_req_userdata(req); |
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|
197 |
int err; |
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changeset
|
198 |
|
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changeset
|
199 |
INFO("[dbfs.unlink %p] parent=%lu, name=%s", req, parent, name); |
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changeset
|
200 |
|
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changeset
|
201 |
const char *sql = |
56427f22e969
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diff
changeset
|
202 |
"DELETE" |
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diff
changeset
|
203 |
" FROM file_tree" |
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diff
changeset
|
204 |
" WHERE parent = $1::int4 AND name = $2::varchar"; |
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changeset
|
205 |
|
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35
diff
changeset
|
206 |
static struct evsql_query_params params = EVSQL_PARAMS(EVSQL_FMT_BINARY) { |
56427f22e969
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35
diff
changeset
|
207 |
EVSQL_PARAM ( UINT32 ), |
56427f22e969
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35
diff
changeset
|
208 |
EVSQL_PARAM ( STRING ), |
56427f22e969
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diff
changeset
|
209 |
|
56427f22e969
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diff
changeset
|
210 |
EVSQL_PARAMS_END |
56427f22e969
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diff
changeset
|
211 |
}; |
56427f22e969
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diff
changeset
|
212 |
|
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35
diff
changeset
|
213 |
// build params |
56427f22e969
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35
diff
changeset
|
214 |
if (SETERR(err, (0 |
56427f22e969
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Tero Marttila <terom@fixme.fi>
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35
diff
changeset
|
215 |
|| evsql_param_uint32(¶ms, 0, parent) |
56427f22e969
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diff
changeset
|
216 |
|| evsql_param_string(¶ms, 1, name) |
56427f22e969
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diff
changeset
|
217 |
), EIO)) |
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diff
changeset
|
218 |
goto error; |
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diff
changeset
|
219 |
|
56427f22e969
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35
diff
changeset
|
220 |
// query |
56427f22e969
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35
diff
changeset
|
221 |
if (SETERR(err, evsql_query_params(ctx->db, NULL, sql, ¶ms, dbfs_unlink_res, req) == NULL, EIO)) |
56427f22e969
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diff
changeset
|
222 |
goto error; |
56427f22e969
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35
diff
changeset
|
223 |
|
56427f22e969
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Tero Marttila <terom@fixme.fi>
parents:
35
diff
changeset
|
224 |
// XXX: handle interrupts |
56427f22e969
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35
diff
changeset
|
225 |
|
56427f22e969
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diff
changeset
|
226 |
// wait |
56427f22e969
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35
diff
changeset
|
227 |
return; |
56427f22e969
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35
diff
changeset
|
228 |
|
56427f22e969
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diff
changeset
|
229 |
error: |
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diff
changeset
|
230 |
if ((err = fuse_reply_err(req, err))) |
56427f22e969
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diff
changeset
|
231 |
EWARNING(err, "fuse_reply_err"); |
56427f22e969
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changeset
|
232 |
} |
37
c3880f3b4de8
update fuse_db.sql, just use dbfs_unlink for rmdir (no special handling)
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diff
changeset
|
233 |
|
38
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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37
diff
changeset
|
234 |
void dbfs_link (struct fuse_req *req, fuse_ino_t ino, fuse_ino_t newparent, const char *newname) { |
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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diff
changeset
|
235 |
struct dbfs *ctx = fuse_req_userdata(req); |
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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37
diff
changeset
|
236 |
int err; |
1fd4da071575
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changeset
|
237 |
|
1fd4da071575
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Tero Marttila <terom@fixme.fi>
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37
diff
changeset
|
238 |
INFO("[dbfs.link %p] ino=%lu, newparent=%lu, newname=%s", req, ino, newparent, newname); |
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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37
diff
changeset
|
239 |
|
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
|
240 |
const char *sql = |
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
Tero Marttila <terom@fixme.fi>
parents:
37
diff
changeset
|
241 |
"SELECT ino, type, mode, size, nlink FROM dbfs_link($1::int4, $2::int4, $3::varchar)"; |
1fd4da071575
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changeset
|
242 |
|
1fd4da071575
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37
diff
changeset
|
243 |
static struct evsql_query_params params = EVSQL_PARAMS(EVSQL_FMT_BINARY) { |
1fd4da071575
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37
diff
changeset
|
244 |
EVSQL_PARAM ( UINT32 ), |
1fd4da071575
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changeset
|
245 |
EVSQL_PARAM ( UINT32 ), |
1fd4da071575
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changeset
|
246 |
EVSQL_PARAM ( STRING ), |
1fd4da071575
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changeset
|
247 |
|
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changeset
|
248 |
EVSQL_PARAMS_END |
1fd4da071575
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changeset
|
249 |
}; |
1fd4da071575
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changeset
|
250 |
|
1fd4da071575
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diff
changeset
|
251 |
// build params |
1fd4da071575
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changeset
|
252 |
if (0 |
1fd4da071575
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changeset
|
253 |
|| evsql_param_uint32(¶ms, 0, ino) |
1fd4da071575
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diff
changeset
|
254 |
|| evsql_param_uint32(¶ms, 1, newparent) |
1fd4da071575
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diff
changeset
|
255 |
|| evsql_param_string(¶ms, 2, newname) |
1fd4da071575
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Tero Marttila <terom@fixme.fi>
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37
diff
changeset
|
256 |
) |
1fd4da071575
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changeset
|
257 |
SERROR(err = EIO); |
1fd4da071575
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258 |
|
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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// query |
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if (evsql_query_params(ctx->db, NULL, sql, ¶ms, dbfs_entry_res, req) == NULL) |
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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261 |
SERROR(err = EIO); |
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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262 |
|
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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263 |
// XXX: handle interrupts |
1fd4da071575
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264 |
|
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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265 |
// wait |
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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return; |
1fd4da071575
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267 |
|
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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268 |
error: |
1fd4da071575
rework/hack parent to be a FOREIGN KEY (add a dir_ino col), implement dbfs_link
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269 |
if ((err = fuse_reply_err(req, err))) |
1fd4da071575
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EWARNING(err, "fuse_reply_err"); |
1fd4da071575
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} |