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| author | Rickard Green <[email protected]> | 2016-03-18 11:55:48 +0100 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2016-03-18 16:43:46 +0100 |
| commit | 455cbcf2230715b37da14573cb9ba60a68c24a26 (patch) | |
| tree | fd93952641bb57ad2db27132440678e2d3bc2255 | |
| parent | 05f11890bdfec4bfc3a78e191a87e70a937ffc54 (diff) | |
| download | otp-455cbcf2230715b37da14573cb9ba60a68c24a26.tar.gz otp-455cbcf2230715b37da14573cb9ba60a68c24a26.tar.bz2 otp-455cbcf2230715b37da14573cb9ba60a68c24a26.zip | |
Fix implementation of dropped signal to port
| -rw-r--r-- | erts/emulator/beam/io.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index 8c67f731f4..9a67e05bfa 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -1501,8 +1501,19 @@ erts_schedule_proc2port_signal(Process *c_p, erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); if (sched_res != 0) { - if (refp) + if (refp) { + /* + * We need to restore the message queue save + * pointer to the beginning of the message queue + * since the caller now wont wait for a message + * containing the reference created above... + */ + ASSERT(c_p); + erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE); + JOIN_MESSAGE(c_p); + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE); *refp = NIL; + } return ERTS_PORT_OP_DROPPED; } return ERTS_PORT_OP_SCHEDULED; |