diff options
Diffstat (limited to 'runtime/probes/test4/dtr.c')
| -rw-r--r-- | runtime/probes/test4/dtr.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/runtime/probes/test4/dtr.c b/runtime/probes/test4/dtr.c index 814bb61d..09b0f52d 100644 --- a/runtime/probes/test4/dtr.c +++ b/runtime/probes/test4/dtr.c @@ -78,12 +78,31 @@ static struct jprobe dtr_probes[] = { #define MAX_DTR_ROUTINE (sizeof(dtr_probes)/sizeof(struct jprobe)) +static unsigned n_subbufs = 4; +module_param(n_subbufs, uint, 0); +MODULE_PARM_DESC(n_subbufs, "number of sub-buffers per per-cpu buffer"); + +static unsigned subbuf_size = 65536; +module_param(subbuf_size, uint, 0); +MODULE_PARM_DESC(subbuf_size, "size of each per-cpu sub-buffers"); + +static int pid; +module_param(pid, int, 0); +MODULE_PARM_DESC(pid, "daemon pid"); + static int init_dtr(void) { int ret; - if (_stp_netlink_open() < 0) - return -1; + if (!pid) { + printk("init_dtr: Can't start without daemon pid\n"); + return -1; + } + + if (_stp_transport_open(n_subbufs, subbuf_size, pid) < 0) { + printk("init_dtr: Couldn't open transport\n"); + return -1; + } opens = _stp_map_new (1000, INT64); reads = _stp_map_new (1000, STAT); @@ -96,12 +115,17 @@ static int init_dtr(void) return ret; } +static int exited; /* FIXME: this is a stopgap - if we don't do this + * and are manually removed, bad things happen */ + static void probe_exit (void) { struct map_node_stat *st; struct map_node_int64 *ptr; struct map_node_str *sptr; + exited = 1; + _stp_unregister_jprobes (dtr_probes, MAX_DTR_ROUTINE); foreach (traces, sptr) { @@ -133,7 +157,10 @@ static void probe_exit (void) static void cleanup_dtr(void) { - _stp_netlink_close(); + if (!exited) + probe_exit(); + + _stp_transport_close(); } module_init(init_dtr); |