#5992 closed defect (fixed)
Crash with VRT use in multi-threaded context
| Reported by: | Even Rouault | Owned by: | Even Rouault |
|---|---|---|---|
| Priority: | normal | Milestone: | 2.0.0 |
| Component: | GDAL_Raster | Version: | unspecified |
| Severity: | normal | Keywords: | vrt |
| Cc: | antonio |
Description
There's a known issue related to VRT as documented in the VRT driver doc: "When using VRT datasets in a multi-threading environment, you should be careful to open the VRT dataset by the thread that will use it afterwards. The reason for that is that the VRT dataset uses GDALOpenShared when opening the underlying datasets. So, if you open twice the same VRT dataset by the same thread, both VRT datasets will share the same handles to the underlying datasets."
However such a restriction might be impractical and it would be desirable that the VRT driver might be instructed to open sources in non-shared mode.
Change History (5)
comment:1 by , 8 years ago
comment:2 by , 8 years ago
trunk r29325 "VRT: fix doc of previous commit: the config option name is VRT_SHARED_SOURCE (#5992)"
branches/2.0 r29326 (post RC1): "VRT: add handling of a shared='0' attribute on <SourceFilename> to open sources in non-shared mode, and VRT_SHARED_SOURCE config option that can be set to 0 in case the shared attribute isn't there (#5992)"
comment:3 by , 8 years ago
| Cc: | added |
|---|
comment:4 by , 8 years ago
| Milestone: | → 2.0 |
|---|---|
| Resolution: | → fixed |
| Status: | new → closed |
trunk r29324 "VRT: add handling of a shared='0' attribute on <SourceFilename> to open sources in non-shared mode, and VRT_SERIALIZE_SHARED config option that can be set to 0 in case the shared attribute isn't there (#5992)"