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| author | Lukas Larsson <[email protected]> | 2016-04-05 11:26:52 +0200 |
|---|---|---|
| committer | Lukas Larsson <[email protected]> | 2016-04-15 15:08:52 +0200 |
| commit | c3e7acb4fe304d117f7361292d36f5d73df3e1c7 (patch) | |
| tree | 50777c8c13d2e4eeba302b446c14683821dcd83b /erts/doc/src | |
| parent | a1b352dfc68d501a385240cdb7f45a96cf9e3358 (diff) | |
| download | otp-c3e7acb4fe304d117f7361292d36f5d73df3e1c7.tar.gz otp-c3e7acb4fe304d117f7361292d36f5d73df3e1c7.tar.bz2 otp-c3e7acb4fe304d117f7361292d36f5d73df3e1c7.zip | |
erts: Make trace_delivered go via sys msg dispatcher again
This is needed as otherwise messages from system_profile
will not be guaranteed to arrive before trace delivered.
Diffstat (limited to 'erts/doc/src')
| -rw-r--r-- | erts/doc/src/erlang.xml | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index fde04504c8..423ccdf98f 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -8958,7 +8958,11 @@ timestamp() -> <name name="trace_delivered" arity="1"/> <fsummary>Notification when trace has been delivered.</fsummary> <desc> - <p>The delivery of trace messages is dislocated on the time-line + <p>The delivery of trace messages (generated by + <seealso marker="#trace/3"><c>erlang:trace/3</c></seealso>, + <seealso marker="kernel:seq_trace"><c>seq_trace</c></seealso> or + <seealso marker="#system_profile/2"><c>erlang:system_profile/2</c></seealso>) + is dislocated on the time-line compared to other events in the system. If you know that <c><anno>Tracee</anno></c> has passed some specific point in its execution, @@ -8984,8 +8988,11 @@ timestamp() -> or previously existing on the same node as the caller of <c>erlang:trace_delivered(<anno>Tracee</anno>)</c> resides on. The special <c><anno>Tracee</anno></c> atom <c>all</c> - denotes all processes - that currently are traced in the node.</p> + denotes all processes that currently are traced in the node.</p> + <p>When used together with an <seealso marker="#erl_tracer"> + Tracer Module</seealso> any message sent in the trace callback + is guaranteed to have reached it's recipient before the + <c>trace_delivered</c> message is sent.</p> <p>Example: Process <c>A</c> is <c><anno>Tracee</anno></c>, port <c>B</c> is tracer, and process <c>C</c> is the port owner of <c>B</c>. <c>C</c> wants to close <c>B</c> when |