examples/stream-{server,client}: Generate talloc report on SIGUSR1

This can help with memleak debugging.

Change-Id: Ia16632602b937db88e2da2b053192887bdb8a986
---
M examples/stream-client.c
M examples/stream-server.c
2 files changed, 33 insertions(+), 0 deletions(-)

diff --git a/examples/stream-client.c b/examples/stream-client.c
index 535804e..da90e8c 100644
--- a/examples/stream-client.c
+++ b/examples/stream-client.c
@@ -90,6 +90,15 @@
 	return 0;
 }
 
+static void signal_handler(int signum)
+{
+	switch (signum) {
+	case SIGUSR1:
+		talloc_report_full(tall_test, stdout);
+		break;
+	}
+}
+
 int main(int argc, char **argv)
 {
 	struct osmo_fd *kbd_ofd;
@@ -110,6 +119,8 @@
 		}
 	}
 
+	signal(SIGUSR1, &signal_handler);
+
 	tall_test = talloc_named_const(NULL, 1, "osmo_stream_cli_test");
 	msgb_talloc_ctx_init(tall_test, 0);
 	osmo_init_logging2(tall_test, &osmo_stream_cli_test_log_info);
diff --git a/examples/stream-server.c b/examples/stream-server.c
index bfbde6d..1cd3517 100644
--- a/examples/stream-server.c
+++ b/examples/stream-server.c
@@ -117,6 +117,15 @@
 	return 0;
 }
 
+static void signal_handler(int signum)
+{
+	switch (signum) {
+	case SIGUSR1:
+		talloc_report(tall_test, stderr);
+		break;
+	}
+}
+
 int main(int argc, char **argv)
 {
 	struct osmo_fd *kbd_ofd;
@@ -137,6 +146,8 @@
 		}
 	}
 
+	signal(SIGUSR1, &signal_handler);
+
 	tall_test = talloc_named_const(NULL, 1, "osmo_stream_srv_test");
 	msgb_talloc_ctx_init(tall_test, 0);
 	osmo_init_logging2(tall_test, &osmo_stream_srv_test_log_info);

