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| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-07-20 14:18:08 +0200 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-07-20 14:18:08 +0200 |
| commit | 49c30004073fdb90800054cd1d13e5ab441f6283 (patch) | |
| tree | 712f6b9cd78264222d38d0ef041dbb481f5da419 /src/tutorial/basics.source | |
| parent | 29efe1b5ebc82512cae363349bae6dd22e9b00eb (diff) | |
Fix (some of) pltcl memory usage
As reported by Bill Parker, PL/Tcl did not validate some malloc() calls
against NULL return. Fix by using palloc() in a new long-lived memory
context instead. This allows us to simplify error handling too, by
simply deleting the memory context instead of doing retail frees.
There's still a lot that could be done to improve PL/Tcl's memory
handling ...
This is pretty ancient, so backpatch all the way back.
Author: Michael Paquier and Álvaro Herrera
Discussion: https://www.postgresql.org/message-id/CAFrbyQwyLDYXfBOhPfoBGqnvuZO_Y90YgqFM11T2jvnxjLFmqw@mail.gmail.com
Diffstat (limited to 'src/tutorial/basics.source')
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