--- /dev/null
+# Copyright (C) 2017 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
+#
+# THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+# OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+#
+# Permission is hereby granted to use or copy this program for any
+# purpose, provided the above notices are retained on all copies.
+# Permission to modify the code and to distribute modified code is
+# granted, provided the above notices are retained, and a notice that
+# the code was modified is included with the above copyright notice.
+
+LIBS = -llttng-ust -ldl
+LOCAL_CPPFLAGS += -I.
+
+all: app
+
+.PHONY: app
+
+app: gen-ust-events.o tp.o
+ $(CC) -o $@ $(LDFLAGS) $(CFLAGS) $^ $(LIBS)
+
+gen-ust-events.o: gen-ust-events.c tp.h
+ $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(CFLAGS) -c -o $@ $<
+
+tp.o: tp.c
+ $(CC) $(CPPFLAGS) $(LOCAL_CPPFLAGS) $(AM_CFLAGS) $(AM_CPPFLAGS) $(CFLAGS) -c -o $@ $<
+
+
+
--- /dev/null
+/*
+ * Copyright (C) - 2012 David Goulet <dgoulet@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation; version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arpa/inet.h>
+#include <assert.h>
+#include <time.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.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 "tp.h"
+
+#define NSEC_PER_USEC 1000
+#define NSEC_PER_SEC 1000000000
+
+static inline
+int64_t elapsed_time_ns(struct timespec *t1, struct timespec *t2)
+{
+ struct timespec delta;
+
+ assert(t1 && t2);
+ delta.tv_sec = t2->tv_sec - t1->tv_sec;
+ delta.tv_nsec = t2->tv_nsec - t1->tv_nsec;
+ return ((int64_t) NSEC_PER_SEC * (int64_t) delta.tv_sec) +
+ (int64_t) delta.tv_nsec;
+}
+
+static inline
+int usleep_safe(useconds_t usec)
+{
+ int ret = 0;
+ struct timespec t1, t2;
+ int64_t time_remaining_ns = (int64_t) usec * (int64_t) NSEC_PER_USEC;
+
+ ret = clock_gettime(CLOCK_MONOTONIC, &t1);
+ if (ret) {
+ ret = -1;
+ perror("clock_gettime");
+ goto end;
+ }
+
+ while (time_remaining_ns > 0) {
+ ret = usleep(time_remaining_ns / (int64_t) NSEC_PER_USEC);
+ if (ret && errno != EINTR) {
+ perror("usleep");
+ goto end;
+ }
+
+ ret = clock_gettime(CLOCK_MONOTONIC, &t2);
+ if (ret) {
+ perror("clock_gettime");
+ goto end;
+ }
+
+ time_remaining_ns -= elapsed_time_ns(&t1, &t2);
+ }
+end:
+ return ret;
+}
+
+void create_file(const char *path)
+{
+ static bool file_created = false;
+ int ret;
+
+ if (!path || file_created) {
+ return;
+ }
+
+ ret = creat(path, S_IRWXU);
+ if (ret < 0) {
+ fprintf(stderr, "Failed to create file %s\n", path);
+ return;
+ }
+
+ (void) close(ret);
+ file_created = true;
+}
+
+static
+void wait_on_file(const char *path)
+{
+ if (!path) {
+ return;
+ }
+ for (;;) {
+ int ret;
+ struct stat buf;
+
+ ret = stat(path, &buf);
+ if (ret == -1 && errno == ENOENT) {
+ (void) poll(NULL, 0, 10); /* 10 ms delay */
+ continue; /* retry */
+ }
+ if (ret) {
+ perror("stat");
+ exit(EXIT_FAILURE);
+ }
+ break; /* found */
+ }
+}
+
+int main(int argc, char **argv)
+{
+ unsigned int i, netint;
+ long values[] = { 1, 2, 3 };
+ char text[10] = "test";
+ double dbl = 2.0;
+ float flt = 2222.0;
+ int nr_iter = 100, ret = 0;
+ useconds_t nr_usec = 0;
+ char *after_first_event_file_path = NULL;
+ char *before_last_event_file_path = NULL;
+
+ if (argc >= 2) {
+ /*
+ * If nr_iter is negative, do an infinite tracing loop.
+ */
+ nr_iter = atoi(argv[1]);
+ }
+
+ if (argc >= 3) {
+ /* By default, don't wait unless user specifies. */
+ nr_usec = atoi(argv[2]);
+ }
+
+ if (argc >= 4) {
+ after_first_event_file_path = argv[3];
+ }
+
+ if (argc >= 5) {
+ before_last_event_file_path = argv[4];
+ }
+
+ for (i = 0; nr_iter < 0 || i < nr_iter; i++) {
+ if (nr_iter >= 0 && i == nr_iter - 1) {
+ /*
+ * Wait on synchronization before writing last
+ * event.
+ */
+ wait_on_file(before_last_event_file_path);
+ }
+ netint = htonl(i);
+ tracepoint(tp, tptest, i, netint, values, text,
+ strlen(text), dbl, flt);
+
+ /*
+ * First loop we create the file if asked to indicate
+ * that at least one tracepoint has been hit.
+ */
+ create_file(after_first_event_file_path);
+ if (nr_usec) {
+ if (usleep_safe(nr_usec)) {
+ ret = -1;
+ goto end;
+ }
+ }
+ }
+
+end:
+ exit(!ret ? EXIT_SUCCESS : EXIT_FAILURE);
+}
--- /dev/null
+/*
+ * Copyright (c) - 2012 David Goulet <dgoulet@efficios.com>
+ *
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED OR
+ * IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program for any purpose,
+ * provided the above notices are retained on all copies. Permission to modify
+ * the code and to distribute modified code is granted, provided the above
+ * notices are retained, and a notice that the code was modified is included
+ * with the above copyright notice.
+ */
+
+#define TRACEPOINT_CREATE_PROBES
+#define TRACEPOINT_DEFINE
+
+#include "tp.h"
--- /dev/null
+#undef TRACEPOINT_PROVIDER
+#define TRACEPOINT_PROVIDER tp
+
+#undef TRACEPOINT_INCLUDE
+#define TRACEPOINT_INCLUDE "./tp.h"
+
+#if !defined(_TP_H) || defined(TRACEPOINT_HEADER_MULTI_READ)
+#define _TP_H
+
+/*
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+ * OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+ *
+ * Permission is hereby granted to use or copy this program
+ * for any purpose, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ */
+
+#include <lttng/tracepoint.h>
+
+TRACEPOINT_EVENT(tp, tptest,
+ TP_ARGS(int, anint, int, netint, long *, values,
+ char *, text, size_t, textlen,
+ double, doublearg, float, floatarg),
+ TP_FIELDS(
+ ctf_integer(int, intfield, anint)
+ ctf_integer_hex(int, intfield2, anint)
+ ctf_integer(long, longfield, anint)
+ ctf_integer_network(int, netintfield, netint)
+ ctf_integer_network_hex(int, netintfieldhex, netint)
+ ctf_array(long, arrfield1, values, 3)
+ ctf_array_text(char, arrfield2, text, 10)
+ ctf_sequence(char, seqfield1, text, size_t, textlen)
+ ctf_sequence_text(char, seqfield2, text, size_t, textlen)
+ ctf_string(stringfield, text)
+ ctf_float(float, floatfield, floatarg)
+ ctf_float(double, doublefield, doublearg)
+ )
+)
+
+#endif /* _TRACEPOINT_TP_H */
+
+/* This part must be outside ifdef protection */
+#include <lttng/tracepoint-event.h>
projects / deliverable / lttng-ivc.git / commitdiff
