With few bthread users currently, it can be useful to spin up some threads to test stuff. Add a new option to add one more thread into the mix and another to remove one of these dummy threads. Unlike the existing -v option that can also be stacked, these threads remain active after command termination unless explicitly removed.
Signed-off-by: Ahmad Fatoum <[email protected]> --- commands/bthread.c | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/commands/bthread.c b/commands/bthread.c index ce3db2d3d292..aaade46e9206 100644 --- a/commands/bthread.c +++ b/commands/bthread.c @@ -135,6 +135,8 @@ struct spawn { static int do_bthread(int argc, char *argv[]) { + static int dummynr; + static LIST_HEAD(dummies); LIST_HEAD(spawners); struct spawn *spawner, *tmp; int ret = 0; @@ -142,8 +144,29 @@ static int do_bthread(int argc, char *argv[]) bool time = false; struct arg *arg; - while ((opt = getopt(argc, argv, "itcv")) > 0) { + while ((opt = getopt(argc, argv, "aritcv")) > 0) { switch (opt) { + case 'a': + spawner = xzalloc(sizeof(*spawner)); + spawner->bthread = bthread_run(bthread_infinite, NULL, + "dummy%u", dummynr++); + if (!spawner->bthread) { + free(spawner); + ret = -ENOMEM; + goto cleanup; + } + + list_add(&spawner->list, &dummies); + break; + case 'r': + if (dummynr == 0) + return -EINVAL; + spawner = list_first_entry(&dummies, struct spawn, list); + bthread_cancel(spawner->bthread); + list_del(&spawner->list); + free(spawner); + dummynr--; + break; case 'i': bthread_info(); break; @@ -198,6 +221,8 @@ BAREBOX_CMD_HELP_START(bthread) BAREBOX_CMD_HELP_OPT ("-i", "Print information about registered bthreads") BAREBOX_CMD_HELP_OPT ("-t", "measure how many bthreads we currently run in 1s") BAREBOX_CMD_HELP_OPT ("-c", "count maximum context switches in 1s") + BAREBOX_CMD_HELP_OPT ("-a", "add a dummy bthread") + BAREBOX_CMD_HELP_OPT ("-r", "remove a dummy bthread") BAREBOX_CMD_HELP_OPT ("-v", "verify correct bthread operation") BAREBOX_CMD_HELP_END -- 2.30.2 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
