X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=hello%2Fhello.c;h=1a00d45f11c85434c50839e04d323cd85a4da051;hb=8d938dbd14e689a294f8a251e4ac255985c65ad5;hp=990a7fa36041ee47211f4c2a34cd42a58b138295;hpb=68c1021b2136a6aea5dbbe138c5103e30b5d8712;p=lttng-ust.git

diff --git a/hello/hello.c b/hello/hello.c
index 990a7fa3..1a00d45f 100644
--- a/hello/hello.c
+++ b/hello/hello.c
@@ -1,9 +1,203 @@
 #include <stdio.h>
 #include <unistd.h>
+#include <sys/mman.h>
+
+#include "../libmarkers/marker.h"
+#include "usterr.h"
+#include "tracer.h"
+
+void probe(const struct marker *mdata,
+		void *probe_private, void *call_private,
+		const char *fmt, va_list *args)
+{
+	printf("In probe\n");
+}
+
+//ust// void try_map()
+//ust// {
+//ust// 	char *m;
+//ust// 
+//ust// 	/* maybe add MAP_LOCKED */
+//ust// 	m = mmap(NULL, 4096, PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE , -1, 0);
+//ust// 	if(m == (char*)-1) {
+//ust// 		perror("mmap");
+//ust// 		return;
+//ust// 	}
+//ust// 
+//ust// 	printf("The mapping is at %p.\n", m);
+//ust// 	strcpy(m, "Hello, Mapping!");
+//ust// }
+
+//sig_atomic_t must_quit;
+
+void inthandler(int sig)
+{
+	printf("in handler\n");
+	exit(0);
+}
+
+int init_int_handler(void)
+{
+	int result;
+	struct sigaction act;
+
+	result = sigemptyset(&act.sa_mask);
+	if(result == -1) {
+		PERROR("sigemptyset");
+		return -1;
+	}
+
+	act.sa_handler = inthandler;
+	act.sa_flags = SA_RESTART;
+
+	/* Only defer ourselves. Also, try to restart interrupted
+	 * syscalls to disturb the traced program as little as possible.
+	 */
+	result = sigaction(SIGINT, &act, NULL);
+	if(result == -1) {
+		PERROR("sigaction");
+		return -1;
+	}
+
+	return 0;
+}
+
+DEFINE_MUTEX(probes_mutex);
+
+static LIST_HEAD(probes_registered_list);
+
+int ltt_marker_connect(const char *channel, const char *mname,
+		       const char *pname)
+
+{
+	int ret;
+	struct ltt_active_marker *pdata;
+	struct ltt_available_probe *probe;
+
+	ltt_lock_traces();
+	mutex_lock(&probes_mutex);
+	probe = get_probe_from_name(pname);
+	if (!probe) {
+		ret = -ENOENT;
+		goto end;
+	}
+	pdata = marker_get_private_data(channel, mname, probe->probe_func, 0);
+	if (pdata && !IS_ERR(pdata)) {
+		ret = -EEXIST;
+		goto end;
+	}
+	pdata = kmem_cache_zalloc(markers_loaded_cachep, GFP_KERNEL);
+	if (!pdata) {
+		ret = -ENOMEM;
+		goto end;
+	}
+	pdata->probe = probe;
+	/*
+	 * ID has priority over channel in case of conflict.
+	 */
+	ret = marker_probe_register(channel, mname, NULL,
+		probe->probe_func, pdata);
+	if (ret)
+		kmem_cache_free(markers_loaded_cachep, pdata);
+	else
+		list_add(&pdata->node, &markers_loaded_list);
+end:
+	mutex_unlock(&probes_mutex);
+	ltt_unlock_traces();
+	return ret;
+}
+
+
+int ltt_probe_register(struct ltt_available_probe *pdata)
+{
+	int ret = 0;
+	int comparison;
+	struct ltt_available_probe *iter;
+
+	mutex_lock(&probes_mutex);
+	list_for_each_entry_reverse(iter, &probes_registered_list, node) {
+		comparison = strcmp(pdata->name, iter->name);
+		if (!comparison) {
+			ret = -EBUSY;
+			goto end;
+		} else if (comparison > 0) {
+			/* We belong to the location right after iter. */
+			list_add(&pdata->node, &iter->node);
+			goto end;
+		}
+	}
+	/* Should be added at the head of the list */
+	list_add(&pdata->node, &probes_registered_list);
+end:
+	mutex_unlock(&probes_mutex);
+	return ret;
+}
+
+
+struct ltt_available_probe default_probe = {
+	.name = "default",
+	.format = NULL,
+	.probe_func = ltt_vtrace,
+	.callbacks[0] = ltt_serialize_data,
+};
 
 int main()
 {
+	int result;
+
+	init_int_handler();
+
+	init_ustrelay_transport();
+
+	printf("page size is %d\n", sysconf(_SC_PAGE_SIZE));
+
+	char trace_name[] = "theusttrace";
+	char trace_type[] = "ustrelay";
+
+	marker_probe_register("abc", "testmark", "", probe, NULL);
+	marker_probe_register("metadata", "core_marker_id", "channel %s name %s event_id %hu int #1u%zu long #1u%zu pointer #1u%zu size_t #1u%zu alignment #1u%u", probe, NULL);
+	result = ltt_probe_register(&default_probe);
+	if(result)
+		ERR("ltt_probe_register");
+	
+	result = ltt_marker_connect("abc", "testmark2", "default");
+	if(result)
+		ERR("ltt_marker_connect");
+
+
+	result = ltt_trace_setup(trace_name);
+	if(result < 0) {
+		ERR("ltt_trace_setup failed");
+		return 1;
+	}
+
+	result = ltt_trace_set_type(trace_name, trace_type);
+	if(result < 0) {
+		ERR("ltt_trace_set_type failed");
+		return 1;
+	}
+
+	result = ltt_trace_alloc(trace_name);
+	if(result < 0) {
+		ERR("ltt_trace_alloc failed");
+		return 1;
+	}
+
+	result = ltt_trace_start(trace_name);
+	if(result < 0) {
+		ERR("ltt_trace_start failed");
+		return 1;
+	}
+
+
 	printf("Hello, World!\n");
+
+	for(;;) {
+		trace_mark(abc, testmark, "", MARK_NOARGS);
+		trace_mark(abc, testmark2, "", MARK_NOARGS);
+		sleep(1);
+	}
+
 	scanf("%*s");
 
 	return 0;