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perf db-export: Factor out db_export__comm() 

In preparation for exporting the current comm for a thread, factor out
db_export__comm().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20190710085810.1650-12-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2019-07-10 11:58:00 +03:00 committed by Arnaldo Carvalho de Melo
parent 8534b5de81
commit 80859c947a
2 changed files with 25 additions and 7 deletions
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30
tools/perf/util/db-export.c
View File

@ -78,6 +78,26 @@ int db_export__thread(struct db_export *dbe, struct thread *thread,
return 0;
}
static int __db_export__comm(struct db_export *dbe, struct comm *comm,
struct thread *thread)
{
comm->db_id = ++dbe->comm_last_db_id;
if (dbe->export_comm)
return dbe->export_comm(dbe, comm, thread);
return 0;
}
int db_export__comm(struct db_export *dbe, struct comm *comm,
struct thread *thread)
{
if (comm->db_id)
return 0;
return __db_export__comm(dbe, comm, thread);
}
/*
* Export the "exec" comm. The "exec" comm is the program / application command
* name at the time it first executes. It is used to group threads for the same
@ -92,13 +112,9 @@ int db_export__exec_comm(struct db_export *dbe, struct comm *comm,
if (comm->db_id)
return 0;
comm->db_id = ++dbe->comm_last_db_id;
if (dbe->export_comm) {
err = dbe->export_comm(dbe, comm, main_thread);
if (err)
return err;
}
err = __db_export__comm(dbe, comm, main_thread);
if (err)
return err;
/*
* Record the main thread for this comm. Note that the main thread can

2
tools/perf/util/db-export.h
View File

@ -77,6 +77,8 @@ int db_export__evsel(struct db_export *dbe, struct perf_evsel *evsel);
int db_export__machine(struct db_export *dbe, struct machine *machine);
int db_export__thread(struct db_export *dbe, struct thread *thread,
struct machine *machine, struct thread *main_thread);
int db_export__comm(struct db_export *dbe, struct comm *comm,
struct thread *thread);
int db_export__exec_comm(struct db_export *dbe, struct comm *comm,
struct thread *main_thread);
int db_export__comm_thread(struct db_export *dbe, struct comm *comm,