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| author |   Jiri Olsa <jolsa@kernel.org> | 2019-08-16 16:00:45 +0200 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-09-25 09:51:49 -0300 |
| commit | f4009e7bf7ba3375cb00e33ca901d61a5acd6c2b (patch) | |
| tree | 39c9d85deaa50b92880f4d0cc2f5ebdce2d2c286 /tools/perf/lib | |
| parent | libperf: Add perf_evlist__alloc_pollfd() function (diff) | |
| download | linux-dev-f4009e7bf7ba3375cb00e33ca901d61a5acd6c2b.tar.xz linux-dev-f4009e7bf7ba3375cb00e33ca901d61a5acd6c2b.zip | |
libperf: Add perf_evlist__add_pollfd() function
Move perf_evlist__add_pollfd() from tools/perf to libperf, it will be
used in the following patches.
Also rename perf's perf_evlist__add_pollfd()/perf_evlist__filter_pollfd()
to evlist__add_pollfd()/evlist__filter_pollfd().
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lore.kernel.org/lkml/20190913132355.21634-38-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/lib')
| -rw-r--r-- | tools/perf/lib/evlist.c | 16 | ||||
| -rw-r--r-- | tools/perf/lib/include/internal/evlist.h | 2 |
2 files changed, 18 insertions, 0 deletions
diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c index 3c3b97f40be0..e4d8b3b7b8fc 100644 --- a/tools/perf/lib/evlist.c +++ b/tools/perf/lib/evlist.c @@ -12,6 +12,9 @@ #include <stdlib.h> #include <errno.h> #include <unistd.h> +#include <fcntl.h> +#include <signal.h> +#include <poll.h> #include <perf/cpumap.h> #include <perf/threadmap.h> #include <api/fd/array.h> @@ -260,3 +263,16 @@ int perf_evlist__alloc_pollfd(struct perf_evlist *evlist) return 0; } + +int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd, + void *ptr, short revent) +{ + int pos = fdarray__add(&evlist->pollfd, fd, revent | POLLERR | POLLHUP); + + if (pos >= 0) { + evlist->pollfd.priv[pos].ptr = ptr; + fcntl(fd, F_SETFL, O_NONBLOCK); + } + + return pos; +} diff --git a/tools/perf/lib/include/internal/evlist.h b/tools/perf/lib/include/internal/evlist.h index 88c0dfaf0ddc..9f440ab12b76 100644 --- a/tools/perf/lib/include/internal/evlist.h +++ b/tools/perf/lib/include/internal/evlist.h @@ -25,6 +25,8 @@ struct perf_evlist { }; int perf_evlist__alloc_pollfd(struct perf_evlist *evlist); +int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd, + void *ptr, short revent); /** * __perf_evlist__for_each_entry - iterate thru all the evsels |