--- /dev/null
+/*
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ * Copyright (C) 2009 Pierre-Marc Fournier
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#include <fcntl.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+/*
+ * Work-around inet.h missing struct mmsghdr forward declaration, with
+ * triggers a warning when system files warnings are enabled.
+ */
+struct mmsghdr;
+#include <arpa/inet.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#define LTTNG_UST_TRACEPOINT_DEFINE
+#include "ust_tests_hello.h"
+
+#include <lttng/ust-events.h>
+#include <lttng/ust-ringbuffer-context.h>
+/* Internal header. */
+#include <common/ust-context-provider.h>
+
+static __thread unsigned int test_count;
+
+static
+void test_inc_count(void)
+{
+ test_count++;
+}
+
+static
+size_t test_get_size(void *priv __attribute__((unused)),
+ struct lttng_ust_probe_ctx *probe_ctx __attribute__((unused)),
+ size_t offset)
+{
+ int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES;
+ size_t size = 0;
+
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(char));
+ size += sizeof(char); /* tag */
+ switch (sel) {
+ case LTTNG_UST_DYNAMIC_TYPE_NONE:
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S8:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(int8_t));
+ size += sizeof(int8_t); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S16:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(int16_t));
+ size += sizeof(int16_t); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S32:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(int32_t));
+ size += sizeof(int32_t); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S64:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(int64_t));
+ size += sizeof(int64_t); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_U8:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(uint8_t));
+ size += sizeof(uint8_t); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_U16:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(uint16_t));
+ size += sizeof(uint16_t); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_U32:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(uint32_t));
+ size += sizeof(uint32_t); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_U64:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(uint64_t));
+ size += sizeof(uint64_t); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_FLOAT:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(float));
+ size += sizeof(float); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
+ size += lttng_ust_ring_buffer_align(offset, lttng_ust_rb_alignof(double));
+ size += sizeof(double); /* variant */
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_STRING:
+ size += strlen("teststr") + 1;
+ break;
+ default:
+ abort();
+ }
+
+ return size;
+}
+
+static
+void test_record(void *priv __attribute__((unused)),
+ struct lttng_ust_probe_ctx *probe_ctx __attribute__((unused)),
+ struct lttng_ust_ring_buffer_ctx *ctx,
+ struct lttng_ust_channel_buffer *lttng_chan_buf)
+{
+ int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES;
+ char sel_char = (char) sel;
+
+ lttng_chan_buf->ops->event_write(ctx, &sel_char, sizeof(sel_char), lttng_ust_rb_alignof(char));
+ switch (sel) {
+ case LTTNG_UST_DYNAMIC_TYPE_NONE:
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S8:
+ {
+ int8_t v = -8;
+
+ lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_S16:
+ {
+ int16_t v = -16;
+
+ lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_S32:
+ {
+ int32_t v = -32;
+
+ lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_S64:
+ {
+ int64_t v = -64;
+
+ lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_U8:
+ {
+ uint8_t v = 8;
+
+ lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_U16:
+ {
+ uint16_t v = 16;
+
+ lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_U32:
+ {
+ uint32_t v = 32;
+
+ lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_U64:
+ {
+ uint64_t v = 64;
+
+ lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v), lttng_ust_rb_alignof(v));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_FLOAT:
+ {
+ float f = 22322.0;
+
+ lttng_chan_buf->ops->event_write(ctx, &f, sizeof(f), lttng_ust_rb_alignof(f));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
+ {
+ double d = 2.0;
+
+ lttng_chan_buf->ops->event_write(ctx, &d, sizeof(d), lttng_ust_rb_alignof(d));
+ break;
+ }
+ case LTTNG_UST_DYNAMIC_TYPE_STRING:
+ {
+ const char *str = "teststr";
+ lttng_chan_buf->ops->event_write(ctx, str, strlen(str) + 1, 1);
+ break;
+ }
+ default:
+ abort();
+ }
+}
+
+static
+void test_get_value(void *priv __attribute__((unused)),
+ struct lttng_ust_probe_ctx *probe_ctx __attribute__((unused)),
+ struct lttng_ust_ctx_value *value)
+{
+ int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES;
+
+ value->sel = sel;
+ switch (sel) {
+ case LTTNG_UST_DYNAMIC_TYPE_NONE:
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S8:
+ value->u.s64 = -8;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S16:
+ value->u.s64 = -16;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S32:
+ value->u.s64 = -32;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S64:
+ value->u.s64 = -64;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_U8:
+ value->u.u64 = 8;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_U16:
+ value->u.u64 = 16;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_U32:
+ value->u.u64 = 32;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_U64:
+ value->u.u64 = 64;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_FLOAT:
+ value->u.d = 22322.0;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
+ value->u.d = 2.0;
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_STRING:
+ value->u.str = "teststr";
+ break;
+ default:
+ abort();
+ }
+}
+
+static char myprovider_name[] = "$app.myprovider";
+struct lttng_ust_context_provider myprovider = {
+ .struct_size = sizeof(struct lttng_ust_context_provider),
+ .name = myprovider_name,
+ .get_size = test_get_size,
+ .record = test_record,
+ .get_value = test_get_value,
+};
+
+static
+void inthandler(int sig __attribute__((unused)))
+{
+ printf("in SIGUSR1 handler\n");
+ lttng_ust_tracepoint(ust_tests_hello, tptest_sighandler);
+}
+
+static
+int init_int_handler(void)
+{
+ int result;
+ struct sigaction act;
+
+ memset(&act, 0, sizeof(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(SIGUSR1, &act, NULL);
+ if (result == -1) {
+ perror("sigaction");
+ return -1;
+ }
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ struct lttng_ust_registered_context_provider *reg_provider;
+ int i, netint;
+ long values[] = { 1, 2, 3 };
+ char text[10] = "test";
+ double dbl = 2.0;
+ float flt = 2222.0;
+ int delay = 0;
+ bool mybool = 123; /* should print "1" */
+
+ init_int_handler();
+
+ if (argc == 2)
+ delay = atoi(argv[1]);
+
+ reg_provider = lttng_ust_context_provider_register(&myprovider);
+ if (!reg_provider)
+ abort();
+
+ fprintf(stderr, "Hello, World!\n");
+
+ sleep(delay);
+
+ fprintf(stderr, "Tracing... ");
+ for (i = 0; i < 1000000; i++) {
+ netint = htonl(i);
+ lttng_ust_tracepoint(ust_tests_hello, tptest, i, netint, values,
+ text, strlen(text), dbl, flt, mybool);
+ test_inc_count();
+ //usleep(100000);
+ }
+ lttng_ust_context_provider_unregister(reg_provider);
+ fprintf(stderr, " done.\n");
+ return 0;
+}
projects / lttng-ust.git / blobdiff