C++ (Cpp) perf_ns__name Examples

Example #1

File: event.c Project: mkrufky/linux

size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp)
{
	size_t ret = 0;
	struct perf_ns_link_info *ns_link_info;
	u32 nr_namespaces, idx;

	ns_link_info = event->namespaces.link_info;
	nr_namespaces = event->namespaces.nr_namespaces;

	ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[",
		       event->namespaces.pid,
		       event->namespaces.tid,
		       nr_namespaces);

	for (idx = 0; idx < nr_namespaces; idx++) {
		if (idx && (idx % 4 == 0))
			ret += fprintf(fp, "\n\t\t ");

		ret  += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx,
				perf_ns__name(idx), (u64)ns_link_info[idx].dev,
				(u64)ns_link_info[idx].ino,
				((idx + 1) != nr_namespaces) ? ", " : "]\n");
	}

	return ret;
}

Example #2

File: event.c Project: AlexShiLucky/linux

int perf_event__synthesize_namespaces(struct perf_tool *tool,
				      union perf_event *event,
				      pid_t pid, pid_t tgid,
				      perf_event__handler_t process,
				      struct machine *machine)
{
	u32 idx;
	struct perf_ns_link_info *ns_link_info;

	if (!tool || !tool->namespace_events)
		return 0;

	memset(&event->namespaces, 0, (sizeof(event->namespaces) +
	       (NR_NAMESPACES * sizeof(struct perf_ns_link_info)) +
	       machine->id_hdr_size));

	event->namespaces.pid = tgid;
	event->namespaces.tid = pid;

	event->namespaces.nr_namespaces = NR_NAMESPACES;

	ns_link_info = event->namespaces.link_info;

	for (idx = 0; idx < event->namespaces.nr_namespaces; idx++)
		perf_event__get_ns_link_info(pid, perf_ns__name(idx),
					     &ns_link_info[idx]);

	event->namespaces.header.type = PERF_RECORD_NAMESPACES;

	event->namespaces.header.size = (sizeof(event->namespaces) +
			(NR_NAMESPACES * sizeof(struct perf_ns_link_info)) +
			machine->id_hdr_size);

	if (perf_tool__process_synth_event(tool, event, machine, process) != 0)
		return -1;

	return 0;
}