bin: compile lttng-sessiond as C++

[lttng-tools.git] / tests / unit / test_kernel_data.cpp

diff --git a/tests/unit/test_kernel_data.cpp b/tests/unit/test_kernel_data.cpp
new file mode 100644 (file)
index 0000000..79489e3
--- /dev/null
+++ b/tests/unit/test_kernel_data.cpp
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <common/compat/errno.h>
+#include <bin/lttng-sessiond/trace-kernel.h>
+#include <common/defaults.h>
+
+#include <tap/tap.h>
+
+#define RANDOM_STRING_LEN      11
+
+/* Number of TAP tests in this file */
+#define NUM_TESTS 11
+
+#ifdef HAVE_LIBLTTNG_UST_CTL
+#include <lttng/ust-sigbus.h>
+DEFINE_LTTNG_UST_SIGBUS_STATE();
+#endif
+
+static const char alphanum[] =
+       "0123456789"
+       "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+       "abcdefghijklmnopqrstuvwxyz";
+
+static struct ltt_kernel_session *kern;
+static char random_string[RANDOM_STRING_LEN];
+
+/*
+ * Return random string of 10 characters.
+ * Not thread-safe.
+ */
+static char *get_random_string(void)
+{
+       int i;
+
+       for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
+               random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
+       }
+
+       random_string[RANDOM_STRING_LEN - 1] = '\0';
+
+       return random_string;
+}
+
+static void test_create_one_kernel_session(void)
+{
+       kern = trace_kernel_create_session();
+       ok(kern != NULL, "Create kernel session");
+
+       if (!kern) {
+               skip(1, "Kernel session is null");
+               return;
+       }
+       ok(kern->fd == -1 &&
+          kern->metadata_stream_fd == -1 &&
+          kern->consumer_fds_sent == 0 &&
+          kern->channel_count == 0 &&
+          kern->stream_count_global == 0 &&
+          kern->metadata == NULL,
+          "Validate kernel session");
+}
+
+static void test_create_kernel_metadata(void)
+{
+       LTTNG_ASSERT(kern != NULL);
+
+       kern->metadata = trace_kernel_create_metadata();
+       ok(kern->metadata != NULL, "Create kernel metadata");
+
+       ok(kern->metadata->fd == -1 &&
+          kern->metadata->conf != NULL &&
+          kern->metadata->conf->attr.overwrite
+                       == DEFAULT_METADATA_OVERWRITE &&
+          kern->metadata->conf->attr.subbuf_size
+                       == default_get_metadata_subbuf_size() &&
+          kern->metadata->conf->attr.num_subbuf
+                       == DEFAULT_METADATA_SUBBUF_NUM &&
+          kern->metadata->conf->attr.switch_timer_interval
+                       == DEFAULT_METADATA_SWITCH_TIMER &&
+          kern->metadata->conf->attr.read_timer_interval
+                       == DEFAULT_METADATA_READ_TIMER &&
+          kern->metadata->conf->attr.output
+                       == LTTNG_EVENT_MMAP,
+          "Validate kernel session metadata");
+
+       trace_kernel_destroy_metadata(kern->metadata);
+}
+
+static void test_create_kernel_channel(void)
+{
+       struct ltt_kernel_channel *chan;
+       struct lttng_channel attr;
+       struct lttng_channel_extended extended;
+
+       memset(&attr, 0, sizeof(attr));
+       memset(&extended, 0, sizeof(extended));
+       attr.attr.extended.ptr = &extended;
+
+       chan = trace_kernel_create_channel(&attr);
+       ok(chan != NULL, "Create kernel channel");
+
+       if (!chan) {
+               skip(1, "Channel is null");
+               return;
+       }
+
+       ok(chan->fd == -1 &&
+          chan->enabled == 1 &&
+          chan->stream_count == 0 &&
+          chan->channel->attr.overwrite  == attr.attr.overwrite,
+          "Validate kernel channel");
+
+       /* Init list in order to avoid sefaults from cds_list_del */
+       CDS_INIT_LIST_HEAD(&chan->list);
+       trace_kernel_destroy_channel(chan);
+}
+
+static void test_create_kernel_event(void)
+{
+       enum lttng_error_code ret;
+       struct ltt_kernel_event *event;
+       struct lttng_event ev;
+
+       memset(&ev, 0, sizeof(ev));
+       ok(!lttng_strncpy(ev.name, get_random_string(),
+                       RANDOM_STRING_LEN),
+               "Validate string length");
+       ev.type = LTTNG_EVENT_TRACEPOINT;
+       ev.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
+
+       ret = trace_kernel_create_event(&ev, NULL, NULL, &event);
+       ok(ret == LTTNG_OK, "Create kernel event");
+
+       if (!event) {
+               skip(1, "Event is null");
+               return;
+       }
+
+       ok(event->fd == -1 &&
+          event->enabled == 1 &&
+          event->event->instrumentation == LTTNG_KERNEL_ABI_TRACEPOINT &&
+          strlen(event->event->name),
+          "Validate kernel event");
+
+       /* Init list in order to avoid sefaults from cds_list_del */
+       CDS_INIT_LIST_HEAD(&event->list);
+       trace_kernel_destroy_event(event);
+}
+
+static void test_create_kernel_stream(void)
+{
+       struct ltt_kernel_stream *stream;
+
+       stream = trace_kernel_create_stream("stream1", 0);
+       ok(stream != NULL, "Create kernel stream");
+
+       if (!stream) {
+               skip(1, "Stream is null");
+               return;
+       }
+
+       ok(stream->fd == -1 &&
+          stream->state == 0,
+          "Validate kernel stream");
+
+       /* Init list in order to avoid sefaults from cds_list_del */
+       CDS_INIT_LIST_HEAD(&stream->list);
+       trace_kernel_destroy_stream(stream);
+}
+
+int main(int argc, char **argv)
+{
+       plan_tests(NUM_TESTS);
+
+       diag("Kernel data structure unit test");
+
+       test_create_one_kernel_session();
+       test_create_kernel_metadata();
+       test_create_kernel_channel();
+       test_create_kernel_event();
+       test_create_kernel_stream();
+
+       return exit_status();
+}