client, bankd: Add SIGUSR1 handling for talloc context debugging

Change-Id: I9153f4cc89b3911a4f9ea4f02fe1b108420d2eed

src/remsim_client.c

@@ -22,6 +22,7 @@
 
 #include <errno.h>
 #include <string.h>
+#include <signal.h>
 
 #define _GNU_SOURCE
 #include <getopt.h>
@@ -158,6 +159,12 @@ static int srvc_handle_rx(struct rspro_server_conn *srvc, const RsproPDU_t *pdu)
 	return 0;
 }
 
+static void handle_sig_usr1(int signal)
+{
+	OSMO_ASSERT(signal == SIGUSR1);
+	talloc_report(g_tall_ctx, stderr);
+}
+
 static void printf_help()
 {
 	printf(
@@ -236,6 +243,8 @@ int main(int argc, char **argv)
 
 	handle_options(argc, argv);
 
+	signal(SIGUSR1, handle_sig_usr1);
+
 	rc = server_conn_fsm_alloc(g_client, srvc);
 	if (rc < 0) {
 		fprintf(stderr, "Unable to create Server conn FSM: %s\n", strerror(errno));

src/server/remsim_server.c

@@ -1,4 +1,5 @@
 #include <unistd.h>
+#include <signal.h>
 
 #include <sys/eventfd.h>
 
@@ -16,6 +17,12 @@ struct rspro_server *g_rps;
 void *g_tall_ctx;
 struct osmo_fd g_event_ofd;
 
+static void handle_sig_usr1(int signal)
+{
+	OSMO_ASSERT(signal == SIGUSR1);
+	talloc_report(g_tall_ctx, stderr);
+}
+
 int main(int argc, char **argv)
 {
 	int rc;
@@ -43,6 +50,8 @@ int main(int argc, char **argv)
 	osmo_fd_setup(&g_event_ofd, rc, BSC_FD_READ, event_fd_cb, g_rps, 0);
 	osmo_fd_register(&g_event_ofd);
 
+	signal(SIGUSR1, handle_sig_usr1);
+
 	rc = rest_api_init(9997);
 	if (rc < 0)
 		goto out_eventfd;

src/simtrace2-remsim_client.c

@@ -650,6 +650,11 @@ static int srvc_handle_rx(struct rspro_server_conn *srvc, const RsproPDU_t *pdu)
 	return 0;
 }
 
+static void handle_sig_usr1(int signal)
+{
+	OSMO_ASSERT(signal == SIGUSR1);
+	talloc_report(g_tall_ctx, stderr);
+}
 
 static void print_welcome(void)
 {
@@ -772,6 +777,8 @@ int main(int argc, char **argv)
 		goto do_exit;
 	}
 
+	signal(SIGUSR1, handle_sig_usr1);
+
 	rc = libusb_init(NULL);
 	if (rc < 0) {
 		fprintf(stderr, "libusb initialization failed\n");