Mercurial > libervia-backend
comparison src/memory/memory.py @ 2526:35d591086974
core (memory, sqlite): added fileUpdate method to update "extra" and "access" avoiding race condition
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 16 Mar 2018 17:03:46 +0100 |
| parents | e4de2f16a284 |
| children | 8d82a62fa098 |
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| 2525:e8e1507049b7 | 2526:35d591086974 |
|---|---|
| 1300 file_hash=file_hash, hash_algo=hash_algo, name=name, size=size, | 1300 file_hash=file_hash, hash_algo=hash_algo, name=name, size=size, |
| 1301 namespace=namespace, mime_type=mime_type, created=created, modified=modified, | 1301 namespace=namespace, mime_type=mime_type, created=created, modified=modified, |
| 1302 owner=owner, | 1302 owner=owner, |
| 1303 access=access, extra=extra) | 1303 access=access, extra=extra) |
| 1304 | 1304 |
| 1305 def fileUpdate(self, file_id, column, update_cb): | |
| 1306 """update a file column taking care of race condition | |
| 1307 | |
| 1308 access is NOT checked in this method, it must be checked beforehand | |
| 1309 @param file_id(unicode): id of the file to update | |
| 1310 @param column(unicode): one of "access" or "extra" | |
| 1311 @param update_cb(callable): method to update the value of the colum | |
| 1312 the method will take older value as argument, and must update it in place | |
| 1313 Note that the callable must be thread-safe | |
| 1314 """ | |
| 1315 return self.storage.fileUpdate(file_id, column, update_cb) | |
| 1316 | |
| 1305 ## Misc ## | 1317 ## Misc ## |
| 1306 | 1318 |
| 1307 def isEntityAvailable(self, entity_jid, profile_key): | 1319 def isEntityAvailable(self, entity_jid, profile_key): |
| 1308 """Tell from the presence information if the given entity is available. | 1320 """Tell from the presence information if the given entity is available. |
| 1309 | 1321 |