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| author | Patrik Nyblom <[email protected]> | 2012-02-13 20:13:37 +0100 |
|---|---|---|
| committer | Patrik Nyblom <[email protected]> | 2012-03-22 18:16:14 +0100 |
| commit | c15f94e7922040b63f3abf8680cd77d5548fecf3 (patch) | |
| tree | 498dd289cf85393a70d4f34ff20c59338fd24066 /erts/emulator/beam/erl_db_util.c | |
| parent | 0fd4e39abeea3fc87b78eec8495109f9245b5ac8 (diff) | |
| download | otp-c15f94e7922040b63f3abf8680cd77d5548fecf3.tar.gz otp-c15f94e7922040b63f3abf8680cd77d5548fecf3.tar.bz2 otp-c15f94e7922040b63f3abf8680cd77d5548fecf3.zip | |
Add user tag spreading functionality to VM and use in file
User tags in a dynamic trace enabled VM are spread throughout the system
in the same way as seq_trace tokens. This is used by the file module
and various other modules to get hold of the tag from the user process
without changing the protocol.
Diffstat (limited to 'erts/emulator/beam/erl_db_util.c')
| -rw-r--r-- | erts/emulator/beam/erl_db_util.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c index 4821a7d9fb..eb05ceaaf1 100644 --- a/erts/emulator/beam/erl_db_util.c +++ b/erts/emulator/beam/erl_db_util.c @@ -2203,7 +2203,11 @@ restart: *esp++ = am_true; break; case matchIsSeqTrace: - if (SEQ_TRACE_TOKEN(c_p) != NIL) + if (SEQ_TRACE_TOKEN(c_p) != NIL +#ifdef HAVE_DTRACE + && SEQ_TRACE_TOKEN(c_p) != am_have_dt_utag +#endif + ) *esp++ = am_true; else *esp++ = am_false; @@ -2227,7 +2231,11 @@ restart: --esp; break; case matchGetSeqToken: - if (SEQ_TRACE_TOKEN(c_p) == NIL) + if (SEQ_TRACE_TOKEN(c_p) == NIL +#ifdef HAVE_DTRACE + || SEQ_TRACE_TOKEN(c_p) == am_have_dt_utag +#endif + ) *esp++ = NIL; else { Eterm sender = SEQ_TRACE_TOKEN_SENDER(c_p); |