X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=tests%2Futils%2Ftestapp%2Fgen-ust-events%2Fgen-ust-events.cpp;fp=tests%2Futils%2Ftestapp%2Fgen-ust-events%2Fgen-ust-events.cpp;h=cf8819977dc79d83596b1da1d31a746d6b271cb9;hp=0000000000000000000000000000000000000000;hb=729c1fec5976af17fded2f026725a08ef1924290;hpb=488dbb6062973d4990a33284e4717d89a893339d

diff --git a/tests/utils/testapp/gen-ust-events/gen-ust-events.cpp b/tests/utils/testapp/gen-ust-events/gen-ust-events.cpp
new file mode 100644
index 000000000..cf8819977
--- /dev/null
+++ b/tests/utils/testapp/gen-ust-events/gen-ust-events.cpp
@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#define _LGPL_SOURCE
+#include <getopt.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <poll.h>
+#include <errno.h>
+#include "utils.h"
+#include "signal-helper.h"
+
+#define TRACEPOINT_DEFINE
+#include "tp.h"
+
+static struct option long_options[] =
+{
+	/* These options set a flag. */
+	{"iter", required_argument, 0, 'i'},
+	{"wait", required_argument, 0, 'w'},
+	{"sync-after-first-event", required_argument, 0, 'a'},
+	{"sync-before-last-event", required_argument, 0, 'b'},
+	{"sync-before-last-event-touch", required_argument, 0, 'c'},
+	{"sync-before-exit", required_argument, 0, 'd'},
+	{"sync-before-exit-touch", required_argument, 0, 'e'},
+	{"emit-end-event", no_argument, 0, 'f'},
+	{0, 0, 0, 0}
+};
+
+int main(int argc, char **argv)
+{
+	unsigned int i, netint;
+	int option_index;
+	int option;
+	long values[] = { 1, 2, 3 };
+	char text[10] = "test";
+	char escape[10] = "\\*";
+	double dbl = 2.0;
+	float flt = 2222.0;
+	uint32_t net_values[] = { 1, 2, 3 };
+	int nr_iter = 100, ret = 0, first_event_file_created = 0;
+	useconds_t nr_usec = 0;
+	char *after_first_event_file_path = NULL;
+	char *before_last_event_file_path = NULL;
+	/*
+	 * Touch a file to indicate that all events except one were
+	 * generated.
+	 */
+	char *before_last_event_file_path_touch = NULL;
+	/* Touch file when we are exiting */
+	char *before_exit_file_path_touch = NULL;
+	/* Wait on file before exiting */
+	char *before_exit_file_path = NULL;
+	/* Emit an end event */
+	bool emit_end_event = false;
+
+	for (i = 0; i < 3; i++) {
+		net_values[i] = htonl(net_values[i]);
+	}
+
+	while ((option = getopt_long(argc, argv, "i:w:a:b:c:d:e:f",
+				long_options, &option_index)) != -1) {
+		switch (option) {
+		case 'a':
+			after_first_event_file_path = strdup(optarg);
+			break;
+		case 'b':
+			before_last_event_file_path = strdup(optarg);
+			break;
+		case 'c':
+			before_last_event_file_path_touch = strdup(optarg);
+			break;
+		case 'd':
+			before_exit_file_path = strdup(optarg);
+			break;
+		case 'e':
+			before_exit_file_path_touch = strdup(optarg);
+			break;
+		case 'f':
+			emit_end_event = true;
+			break;
+		case 'i':
+			nr_iter = atoi(optarg);
+			break;
+		case 'w':
+			nr_usec = atoi(optarg);
+			break;
+		case '?':
+			/* getopt_long already printed an error message. */
+		default:
+			ret = -1;
+			goto end;
+		}
+	}
+
+	if (optind != argc) {
+		fprintf(stderr, "Error: takes long options only.\n");
+
+		/*
+		 * Aborting the test program for now because callers typically don't check
+		 * the test program return value, and the transition from positional
+		 * arguments to getopt causes hangs when caller scripts are not updated.
+		 * An abort is easier to diagnose and fix. This is a temporary solution:
+		 * we should eventually ensure that all scripts test and report the test
+		 * app return values.
+		 */
+		abort();
+
+		ret = -1;
+		goto end;
+	}
+
+
+	if (set_signal_handler()) {
+		ret = -1;
+		goto end;
+	}
+
+	for (i = 0; nr_iter < 0 || i < nr_iter; i++) {
+		if (nr_iter >= 0 && i == nr_iter - 1) {
+			if (before_last_event_file_path_touch) {
+				ret = create_file(before_last_event_file_path_touch);
+				if (ret != 0) {
+					goto end;
+				}
+			}
+
+			/*
+			 * Wait on synchronization before writing last
+			 * event.
+			 */
+			if (before_last_event_file_path) {
+				ret = wait_on_file(before_last_event_file_path);
+				if (ret != 0) {
+					goto end;
+				}
+			}
+		}
+		netint = htonl(i);
+		tracepoint(tp, tptest, i, netint, values, text,
+			strlen(text), escape, net_values, dbl, flt);
+
+		/*
+		 * First loop we create the file if asked to indicate
+		 * that at least one tracepoint has been hit.
+		 */
+		if (after_first_event_file_path && first_event_file_created == 0) {
+			ret = create_file(after_first_event_file_path);
+
+			if (ret != 0) {
+				goto end;
+			} else {
+				first_event_file_created = 1;
+			}
+		}
+
+		if (nr_usec) {
+		        if (usleep_safe(nr_usec)) {
+				ret = -1;
+				goto end;
+			}
+		}
+		if (should_quit) {
+			break;
+		}
+	}
+
+	if (emit_end_event) {
+		tracepoint(tp, end);
+	}
+
+	if (before_exit_file_path_touch) {
+		ret = create_file(before_exit_file_path_touch);
+		if (ret != 0) {
+			goto end;
+		}
+	}
+	if (before_exit_file_path) {
+		ret = wait_on_file(before_exit_file_path);
+		if (ret != 0) {
+			goto end;
+		}
+	}
+end:
+	free(after_first_event_file_path);
+	free(before_last_event_file_path);
+	free(before_last_event_file_path_touch);
+	free(before_exit_file_path);
+	free(before_exit_file_path_touch);
+	exit(!ret ? EXIT_SUCCESS : EXIT_FAILURE);
+}