prosody
0ab228bc21c6
util/datamanager.lua
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util/datamanager.lua @ 6997:0ab228bc21c6
util.datamanager: Handle potential issues from fallocate
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Fri, 11 Dec 2015 20:24:36 +0100 |
| parent | 6996:644b1bddc676 |
| child | 6998:86607fe755b6 |
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| 6996:644b1bddc676 | 6997:0ab228bc21c6 |
|---|---|
| 220 return nil, msg; | 220 return nil, msg; |
| 221 end | 221 end |
| 222 end | 222 end |
| 223 local pos = f:seek("end"); | 223 local pos = f:seek("end"); |
| 224 ok, msg = fallocate(f, pos, #data); | 224 ok, msg = fallocate(f, pos, #data); |
| 225 f:seek("set", pos); | 225 if not ok then |
| 226 log("warn", "fallocate() failed: %s", tostring(msg)); | |
| 227 -- This doesn't work on every file system | |
| 228 end | |
| 229 | |
| 230 if f:seek() ~= pos then | |
| 231 log("debug", "fallocate() changed file position"); | |
| 232 f:seek("set", pos); | |
| 233 end | |
| 234 | |
| 226 if ok then | 235 if ok then |
| 227 f:write(data); | 236 f:write(data); |
| 228 else | 237 else |
| 229 return ok, msg; | 238 return ok, msg; |
| 230 end | 239 end |
