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| author | Kenneth Lundin <[email protected]> | 2010-11-26 08:35:41 +0100 |
|---|---|---|
| committer | Kenneth Lundin <[email protected]> | 2010-11-26 08:35:41 +0100 |
| commit | b79e6bea522bcf7b8f5722970e6fe450e866984c (patch) | |
| tree | 5f78f557fd5bf79c782be93abd32042e587819d7 /lib/asn1 | |
| parent | 99a28d961d2d760e98353b55991f1fc51dee06b0 (diff) | |
| download | otp-b79e6bea522bcf7b8f5722970e6fe450e866984c.tar.gz otp-b79e6bea522bcf7b8f5722970e6fe450e866984c.tar.bz2 otp-b79e6bea522bcf7b8f5722970e6fe450e866984c.zip | |
Correct a race-condition during loading of driver
The asn1 driver is loaded automatically when first needed.
If several processes in parallel is doing asn1 encode or decode a race
could appear which caused an ERROR report for a crashed process. The
system still worked as intended, but an unnecessary ERROR report is
no good.
Diffstat (limited to 'lib/asn1')
| -rw-r--r-- | lib/asn1/src/asn1rt_driver_handler.erl | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/asn1/src/asn1rt_driver_handler.erl b/lib/asn1/src/asn1rt_driver_handler.erl index c95b243ae0..cc2b501e16 100644 --- a/lib/asn1/src/asn1rt_driver_handler.erl +++ b/lib/asn1/src/asn1rt_driver_handler.erl @@ -71,7 +71,10 @@ load_driver(Reason) -> end. init(FromPid,FromRef) -> - register(asn1_driver_owner,self()), + case catch register(asn1_driver_owner,self()) of + true -> true; + _Other -> exit(normal) + end, Dir = filename:join([code:priv_dir(asn1),"lib"]), case catch erl_ddll:load_driver(Dir,asn1_erl_drv) of ok -> |