+/*
+ * Copyright (c) 2011 David Goulet <david.goulet@polymtl.ca>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * as published by the Free Software Foundation; only version 2
+ * of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+#include "ltt-sessiond/trace.h"
+#include "utils.h"
+
+/* This path will NEVER be created in this test */
+#define PATH1 "/tmp/.test-junk-lttng"
+
+/* For lttngerr.h */
+int opt_quiet = 1;
+int opt_verbose = 0;
+
+static const char alphanum[] =
+ "0123456789"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz";
+
+static struct ltt_kernel_session *kern;
+
+/*
+ * Return random string of 10 characters.
+ */
+static char *get_random_string(void)
+{
+ int i;
+ char *str = malloc(11);
+
+ for (i = 0; i < 10; i++) {
+ str[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
+ }
+
+ str[10] = '\0';
+
+ return str;
+}
+
+static void create_one_kernel_session(void)
+{
+ printf("Create kernel session: ");
+ kern = trace_create_kernel_session();
+ assert(kern != NULL);
+ PRINT_OK();
+
+ printf("Validating kernel session: ");
+ assert(kern->fd == 0);
+ assert(kern->metadata_stream_fd == 0);
+ assert(kern->kconsumer_fds_sent == 0);
+ assert(kern->channel_count == 0);
+ assert(kern->stream_count_global == 0);
+ assert(kern->metadata == NULL);
+ PRINT_OK();
+
+ /* Init list in order to avoid sefaults from cds_list_del */
+ trace_destroy_kernel_session(kern);
+}
+
+static void create_kernel_metadata(void)
+{
+ assert(kern != NULL);
+
+ printf("Create kernel metadata: ");
+ kern->metadata = trace_create_kernel_metadata(PATH1);
+ assert(kern->metadata != NULL);
+ PRINT_OK();
+
+ printf("Validating kernel session metadata: ");
+ assert(kern->metadata->fd == 0);
+ assert(strlen(kern->metadata->pathname));
+ assert(kern->metadata->conf != NULL);
+ assert(kern->metadata->conf->attr.overwrite
+ == DEFAULT_CHANNEL_OVERWRITE);
+ assert(kern->metadata->conf->attr.subbuf_size
+ == DEFAULT_CHANNEL_SUBBUF_SIZE);
+ assert(kern->metadata->conf->attr.num_subbuf
+ == DEFAULT_CHANNEL_SUBBUF_NUM);
+ assert(kern->metadata->conf->attr.switch_timer_interval
+ == DEFAULT_CHANNEL_SWITCH_TIMER);
+ assert(kern->metadata->conf->attr.read_timer_interval
+ == DEFAULT_CHANNEL_READ_TIMER);
+ assert(kern->metadata->conf->attr.output
+ == DEFAULT_KERNEL_CHANNEL_OUTPUT);
+ PRINT_OK();
+
+ trace_destroy_kernel_metadata(kern->metadata);
+}
+
+static void create_kernel_channel(void)
+{
+ struct ltt_kernel_channel *chan;
+ struct lttng_channel attr;
+
+ printf("Creating kernel channel: ");
+ chan = trace_create_kernel_channel(&attr, PATH1);
+ assert(chan != NULL);
+ PRINT_OK();
+
+ printf("Validating kernel channel: ");
+ assert(chan->fd == 0);
+ assert(chan->enabled == 1);
+ assert(strcmp(PATH1, chan->pathname) == 0);
+ assert(chan->stream_count == 0);
+ assert(chan->ctx == NULL);
+ assert(chan->channel->attr.overwrite == attr.attr.overwrite);
+ PRINT_OK();
+
+ /* Init list in order to avoid sefaults from cds_list_del */
+ CDS_INIT_LIST_HEAD(&chan->list);
+ trace_destroy_kernel_channel(chan);
+}
+
+static void create_kernel_event(void)
+{
+ struct ltt_kernel_event *event;
+ struct lttng_event ev;
+
+ strncpy(ev.name, get_random_string(), LTTNG_SYM_NAME_LEN);
+ ev.type = LTTNG_EVENT_TRACEPOINT;
+
+ printf("Creating kernel event: ");
+ event = trace_create_kernel_event(&ev);
+ assert(event != NULL);
+ PRINT_OK();
+
+ printf("Validating kernel event: ");
+ assert(event->fd == 0);
+ assert(event->enabled == 1);
+ assert(event->ctx == NULL);
+ assert(event->event->instrumentation == LTTNG_KERNEL_TRACEPOINT);
+ assert(strlen(event->event->name));
+ PRINT_OK();
+
+ /* Init list in order to avoid sefaults from cds_list_del */
+ CDS_INIT_LIST_HEAD(&event->list);
+ trace_destroy_kernel_event(event);
+}
+
+static void create_kernel_stream(void)
+{
+ struct ltt_kernel_stream *stream;
+
+ printf("Creating kernel stream: ");
+ stream = trace_create_kernel_stream();
+ assert(stream != NULL);
+ PRINT_OK();
+
+ printf("Validating kernel stream: ");
+ assert(stream->fd == 0);
+ assert(stream->pathname == NULL);
+ assert(stream->state == 0);
+ PRINT_OK();
+
+ /* Init list in order to avoid sefaults from cds_list_del */
+ CDS_INIT_LIST_HEAD(&stream->list);
+ trace_destroy_kernel_stream(stream);
+}
+
+int main(int argc, char **argv)
+{
+ printf("\nTesting kernel data structures:\n-----------\n");
+
+ create_one_kernel_session();
+
+ create_kernel_metadata();
+ create_kernel_channel();
+
+
+ create_kernel_event();
+
+ create_kernel_stream();
+
+ /* Success */
+ return 0;
+}
projects / lttng-tools.git / commitdiff
