[lttng-ust.git] / tests / compile / test-app-ctx / hello.c

/*
 * 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 TRACEPOINT_DEFINE
#include "ust_tests_hello.h"

#include <lttng/ust-events.h>
#include <lttng/ringbuffer-context.h>
/* Internal header. */
#include <ust-context-provider.h>

static __thread unsigned int test_count;

void test_inc_count(void)
{
	test_count++;
}

static
size_t test_get_size(struct lttng_ust_ctx_field *field, size_t offset)
{
	int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES;
	size_t size = 0;

	size += lttng_ust_lib_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_lib_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_lib_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_lib_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_lib_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_lib_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_lib_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_lib_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_lib_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_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(float));
		size += sizeof(float);		/* variant */
		break;
	case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
		size += lttng_ust_lib_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(struct lttng_ust_ctx_field *field,
		 struct lttng_ust_lib_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_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(char));
	lttng_chan_buf->ops->event_write(ctx, &sel_char, sizeof(sel_char));
	switch (sel) {
	case LTTNG_UST_DYNAMIC_TYPE_NONE:
		break;
	case LTTNG_UST_DYNAMIC_TYPE_S8:
	{
		int8_t v = -8;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
		lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_S16:
	{
		int16_t v = -16;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
		lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_S32:
	{
		int32_t v = -32;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
		lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_S64:
	{
		int64_t v = -64;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
		lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_U8:
	{
		uint8_t v = 8;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
		lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_U16:
	{
		uint16_t v = 16;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
		lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_U32:
	{
		uint32_t v = 32;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
		lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_U64:
	{
		uint64_t v = 64;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
		lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_FLOAT:
	{
		float f = 22322.0;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(f));
		lttng_chan_buf->ops->event_write(ctx, &f, sizeof(f));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
	{
		double d = 2.0;

		lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(d));
		lttng_chan_buf->ops->event_write(ctx, &d, sizeof(d));
		break;
	}
	case LTTNG_UST_DYNAMIC_TYPE_STRING:
	{
		const char *str = "teststr";
		lttng_chan_buf->ops->event_write(ctx, str, strlen(str) + 1);
		break;
	}
	default:
		abort();
	}
}

static
void test_get_value(struct lttng_ust_ctx_field *field,
		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();
	}
}

struct lttng_ust_context_provider myprovider = {
	.struct_size = sizeof(struct lttng_ust_context_provider),
	.name = "$app.myprovider",
	.get_size = test_get_size,
	.record = test_record,
	.get_value = test_get_value,
};

void inthandler(int sig)
{
	printf("in SIGUSR1 handler\n");
	tracepoint(ust_tests_hello, tptest_sighandler);
}

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;
}

void test_inc_count(void);

int main(int argc, char **argv)
{
	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]);

	if (lttng_ust_context_provider_register(&myprovider))
		abort();

	fprintf(stderr, "Hello, World!\n");

	sleep(delay);

	fprintf(stderr, "Tracing... ");
	for (i = 0; i < 1000000; i++) {
		netint = htonl(i);
		tracepoint(ust_tests_hello, tptest, i, netint, values,
			   text, strlen(text), dbl, flt, mybool);
		test_inc_count();
		//usleep(100000);
	}
	lttng_ust_context_provider_unregister(&myprovider);
	fprintf(stderr, " done.\n");
	return 0;
}
Commit	Line	Data
53569322	1	/*
c0c0989a	2	* SPDX-License-Identifier: LGPL-2.1-only
53569322	3	*
c0c0989a MJ	4	* Copyright (C) 2009 Pierre-Marc Fournier
c0c0989a MJ	5	* Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
53569322 MD	6	*/
53569322 MD	7
53569322 MD	8	#include <fcntl.h>
53569322 MD	9	#include <signal.h>
fb31eb73 FD	10	#include <stdarg.h>
	11	#include <stdint.h>
	12	#include <stdio.h>
53569322	13	#include <string.h>
fb31eb73 FD	14	#include <sys/mman.h>
	15	#include <sys/stat.h>
	16	#include <sys/types.h>
	17	#include <unistd.h>
53569322 MD	18	/*
	19	* Work-around inet.h missing struct mmsghdr forward declaration, with
	20	* triggers a warning when system files warnings are enabled.
	21	*/
	22	struct mmsghdr;
	23	#include <arpa/inet.h>
b4051ad8	24	#include <stddef.h>
53569322 MD	25	#include <stdlib.h>
	26	#include <stdbool.h>
	27
	28	#define TRACEPOINT_DEFINE
	29	#include "ust_tests_hello.h"
	30
53569322	31	#include <lttng/ust-events.h>
0466ac28 MD	32	#include <lttng/ringbuffer-context.h>
0466ac28 MD	33	/* Internal header. */
ae4b659d	34	#include <ust-context-provider.h>
53569322	35
16adecf1	36	static __thread unsigned int test_count;
53569322 MD	37
	38	void test_inc_count(void)
	39	{
	40	test_count++;
	41	}
	42
	43	static
daacdbfc	44	size_t test_get_size(struct lttng_ust_ctx_field *field, size_t offset)
53569322 MD	45	{
	46	int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES;
	47	size_t size = 0;
	48
dc325c1d	49	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(char));
53569322 MD	50	size += sizeof(char); /* tag */
	51	switch (sel) {
	52	case LTTNG_UST_DYNAMIC_TYPE_NONE:
	53	break;
	54	case LTTNG_UST_DYNAMIC_TYPE_S8:
dc325c1d	55	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int8_t));
53569322 MD	56	size += sizeof(int8_t); /* variant */
	57	break;
	58	case LTTNG_UST_DYNAMIC_TYPE_S16:
dc325c1d	59	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int16_t));
53569322 MD	60	size += sizeof(int16_t); /* variant */
	61	break;
	62	case LTTNG_UST_DYNAMIC_TYPE_S32:
dc325c1d	63	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int32_t));
53569322 MD	64	size += sizeof(int32_t); /* variant */
	65	break;
	66	case LTTNG_UST_DYNAMIC_TYPE_S64:
dc325c1d	67	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(int64_t));
53569322 MD	68	size += sizeof(int64_t); /* variant */
	69	break;
	70	case LTTNG_UST_DYNAMIC_TYPE_U8:
dc325c1d	71	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(uint8_t));
53569322 MD	72	size += sizeof(uint8_t); /* variant */
	73	break;
	74	case LTTNG_UST_DYNAMIC_TYPE_U16:
dc325c1d	75	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(uint16_t));
53569322 MD	76	size += sizeof(uint16_t); /* variant */
	77	break;
	78	case LTTNG_UST_DYNAMIC_TYPE_U32:
dc325c1d	79	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(uint32_t));
53569322 MD	80	size += sizeof(uint32_t); /* variant */
	81	break;
	82	case LTTNG_UST_DYNAMIC_TYPE_U64:
dc325c1d	83	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(uint64_t));
53569322 MD	84	size += sizeof(uint64_t); /* variant */
	85	break;
	86	case LTTNG_UST_DYNAMIC_TYPE_FLOAT:
dc325c1d	87	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(float));
53569322 MD	88	size += sizeof(float); /* variant */
	89	break;
	90	case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
dc325c1d	91	size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(double));
53569322 MD	92	size += sizeof(double); /* variant */
	93	break;
	94	case LTTNG_UST_DYNAMIC_TYPE_STRING:
	95	size += strlen("teststr") + 1;
	96	break;
	97	default:
	98	abort();
	99	}
	100
	101	return size;
	102	}
	103
	104	static
daacdbfc	105	void test_record(struct lttng_ust_ctx_field *field,
53569322	106	struct lttng_ust_lib_ring_buffer_ctx *ctx,
e7bc0ef6	107	struct lttng_ust_channel_buffer *lttng_chan_buf)
53569322 MD	108	{
	109	int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES;
	110	char sel_char = (char) sel;
	111
dc325c1d	112	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(char));
e7bc0ef6	113	lttng_chan_buf->ops->event_write(ctx, &sel_char, sizeof(sel_char));
53569322 MD	114	switch (sel) {
	115	case LTTNG_UST_DYNAMIC_TYPE_NONE:
	116	break;
	117	case LTTNG_UST_DYNAMIC_TYPE_S8:
	118	{
	119	int8_t v = -8;
	120
dc325c1d	121	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
e7bc0ef6	122	lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
53569322 MD	123	break;
	124	}
	125	case LTTNG_UST_DYNAMIC_TYPE_S16:
	126	{
	127	int16_t v = -16;
	128
dc325c1d	129	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
e7bc0ef6	130	lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
53569322 MD	131	break;
	132	}
	133	case LTTNG_UST_DYNAMIC_TYPE_S32:
	134	{
	135	int32_t v = -32;
	136
dc325c1d	137	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
e7bc0ef6	138	lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
53569322 MD	139	break;
	140	}
	141	case LTTNG_UST_DYNAMIC_TYPE_S64:
	142	{
	143	int64_t v = -64;
	144
dc325c1d	145	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
e7bc0ef6	146	lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
53569322 MD	147	break;
	148	}
	149	case LTTNG_UST_DYNAMIC_TYPE_U8:
	150	{
	151	uint8_t v = 8;
	152
dc325c1d	153	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
e7bc0ef6	154	lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
53569322 MD	155	break;
	156	}
	157	case LTTNG_UST_DYNAMIC_TYPE_U16:
	158	{
	159	uint16_t v = 16;
	160
dc325c1d	161	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
e7bc0ef6	162	lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
53569322 MD	163	break;
	164	}
	165	case LTTNG_UST_DYNAMIC_TYPE_U32:
	166	{
	167	uint32_t v = 32;
	168
dc325c1d	169	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
e7bc0ef6	170	lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
53569322 MD	171	break;
	172	}
	173	case LTTNG_UST_DYNAMIC_TYPE_U64:
	174	{
	175	uint64_t v = 64;
	176
dc325c1d	177	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(v));
e7bc0ef6	178	lttng_chan_buf->ops->event_write(ctx, &v, sizeof(v));
53569322 MD	179	break;
	180	}
	181	case LTTNG_UST_DYNAMIC_TYPE_FLOAT:
	182	{
	183	float f = 22322.0;
	184
dc325c1d	185	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(f));
e7bc0ef6	186	lttng_chan_buf->ops->event_write(ctx, &f, sizeof(f));
53569322 MD	187	break;
	188	}
	189	case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
	190	{
	191	double d = 2.0;
	192
dc325c1d	193	lttng_ust_lib_ring_buffer_align_ctx(ctx, lttng_ust_rb_alignof(d));
e7bc0ef6	194	lttng_chan_buf->ops->event_write(ctx, &d, sizeof(d));
53569322 MD	195	break;
	196	}
	197	case LTTNG_UST_DYNAMIC_TYPE_STRING:
	198	{
	199	const char *str = "teststr";
e7bc0ef6	200	lttng_chan_buf->ops->event_write(ctx, str, strlen(str) + 1);
53569322 MD	201	break;
	202	}
	203	default:
	204	abort();
	205	}
	206	}
	207
	208	static
daacdbfc MD	209	void test_get_value(struct lttng_ust_ctx_field *field,
daacdbfc MD	210	struct lttng_ust_ctx_value *value)
53569322 MD	211	{
	212	int sel = test_count % _NR_LTTNG_UST_DYNAMIC_TYPES;
	213
	214	value->sel = sel;
	215	switch (sel) {
	216	case LTTNG_UST_DYNAMIC_TYPE_NONE:
	217	break;
	218	case LTTNG_UST_DYNAMIC_TYPE_S8:
	219	value->u.s64 = -8;
	220	break;
	221	case LTTNG_UST_DYNAMIC_TYPE_S16:
	222	value->u.s64 = -16;
	223	break;
	224	case LTTNG_UST_DYNAMIC_TYPE_S32:
	225	value->u.s64 = -32;
	226	break;
	227	case LTTNG_UST_DYNAMIC_TYPE_S64:
	228	value->u.s64 = -64;
	229	break;
	230	case LTTNG_UST_DYNAMIC_TYPE_U8:
86133caf	231	value->u.u64 = 8;
53569322 MD	232	break;
53569322 MD	233	case LTTNG_UST_DYNAMIC_TYPE_U16:
86133caf	234	value->u.u64 = 16;
53569322 MD	235	break;
53569322 MD	236	case LTTNG_UST_DYNAMIC_TYPE_U32:
86133caf	237	value->u.u64 = 32;
53569322 MD	238	break;
53569322 MD	239	case LTTNG_UST_DYNAMIC_TYPE_U64:
86133caf	240	value->u.u64 = 64;
53569322 MD	241	break;
	242	case LTTNG_UST_DYNAMIC_TYPE_FLOAT:
	243	value->u.d = 22322.0;
	244	break;
	245	case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
	246	value->u.d = 2.0;
	247	break;
	248	case LTTNG_UST_DYNAMIC_TYPE_STRING:
	249	value->u.str = "teststr";
	250	break;
	251	default:
	252	abort();
	253	}
	254	}
	255
	256	struct lttng_ust_context_provider myprovider = {
daacdbfc	257	.struct_size = sizeof(struct lttng_ust_context_provider),
53569322 MD	258	.name = "$app.myprovider",
	259	.get_size = test_get_size,
	260	.record = test_record,
	261	.get_value = test_get_value,
	262	};
	263
	264	void inthandler(int sig)
	265	{
	266	printf("in SIGUSR1 handler\n");
	267	tracepoint(ust_tests_hello, tptest_sighandler);
	268	}
	269
	270	int init_int_handler(void)
	271	{
	272	int result;
	273	struct sigaction act;
	274
	275	memset(&act, 0, sizeof(act));
	276	result = sigemptyset(&act.sa_mask);
	277	if (result == -1) {
	278	perror("sigemptyset");
	279	return -1;
	280	}
	281
	282	act.sa_handler = inthandler;
	283	act.sa_flags = SA_RESTART;
	284
	285	/* Only defer ourselves. Also, try to restart interrupted
	286	* syscalls to disturb the traced program as little as possible.
	287	*/
	288	result = sigaction(SIGUSR1, &act, NULL);
	289	if (result == -1) {
	290	perror("sigaction");
	291	return -1;
	292	}
	293
	294	return 0;
	295	}
	296
	297	void test_inc_count(void);
	298
	299	int main(int argc, char **argv)
	300	{
	301	int i, netint;
	302	long values[] = { 1, 2, 3 };
	303	char text[10] = "test";
	304	double dbl = 2.0;
	305	float flt = 2222.0;
	306	int delay = 0;
	307	bool mybool = 123; /* should print "1" */
	308
	309	init_int_handler();
	310
	311	if (argc == 2)
	312	delay = atoi(argv[1]);
	313
	314	if (lttng_ust_context_provider_register(&myprovider))
	315	abort();
	316
	317	fprintf(stderr, "Hello, World!\n");
	318
	319	sleep(delay);
	320
	321	fprintf(stderr, "Tracing... ");
322	for (i = 0; i < 1000000; i++) {
323	netint = htonl(i);
324	tracepoint(ust_tests_hello, tptest, i, netint, values,
325	text, strlen(text), dbl, flt, mybool);
326	test_inc_count();
327	//usleep(100000);
328	}
329	lttng_ust_context_provider_unregister(&myprovider);
330	fprintf(stderr, " done.\n");
331	return 0;
332	}