author | Tero Marttila <terom@fixme.fi> |
Thu, 16 Oct 2008 22:04:53 +0300 | |
changeset 29 | 5de62ca9a5aa |
child 31 | 7804cd7b5cd5 |
permissions | -rw-r--r-- |
29
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reorganize evsql into a separate dir, rename dbfs slightly, and split dbfs_op out from dirop (in prep for fileop)
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1 |
#ifndef DBFS_DBFS_H |
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2 |
#define DBFS_DBFS_H |
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3 |
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4 |
#include <sys/stat.h> |
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5 |
#include <errno.h> |
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6 |
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7 |
#include <event2/event.h> |
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8 |
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9 |
#include "ops.h" |
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10 |
#include "../evfuse.h" |
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#include "../evsql.h" |
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13 |
/* |
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14 |
* Structs and functions shared between all dbfs components |
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15 |
*/ |
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17 |
#define SERROR(val) do { (val); goto error; } while(0) |
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19 |
struct dbfs { |
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20 |
struct event_base *ev_base; |
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22 |
const char *db_conninfo; |
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23 |
struct evsql *db; |
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25 |
struct evfuse *ev_fuse; |
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26 |
}; |
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// XXX: not sure how this should work |
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29 |
#define CACHE_TIMEOUT 1.0 |
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31 |
/* |
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32 |
* Convert the CHAR(4) inodes.type from SQL into a mode_t. |
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33 |
* |
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* Returns zero for unknown types. |
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35 |
*/ |
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36 |
mode_t _dbfs_mode (const char *type); |
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38 |
/* |
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* Check that the number of rows and columns in the result set matches what we expect. |
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* |
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* If rows is nonzero, there must be exactly that many rows (mostly useful for rows=1). |
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* The number of columns must always be given, and match. |
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* |
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* Returns; |
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* -1 if the query failed, the columns/rows do not match |
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* 0 the results match |
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* 1 there were no results (zero rows) |
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*/ |
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int _dbfs_check_res (const struct evsql_result_info *res, size_t rows, size_t cols); |
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51 |
/* |
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* Fill a `struct state` with info retrieved from a SQL query. |
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* |
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* The result must contain four columns, starting at the given offset: |
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* inodes.type, inodes.mode, inodes.size, count(*) AS nlink |
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* |
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* Note that this does not fill the st_ino field |
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58 |
*/ |
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int _dbfs_stat_info (struct stat *st, const struct evsql_result_info *res, size_t row, size_t col_offset); |
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#endif /* DBFS_DBFS_H */ |