X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Futils.cpp;fp=src%2Fbin%2Flttng-sessiond%2Futils.cpp;h=6936a03f963de2d0d37a18040f39fbd32b99d2a1;hb=7966af5763c4aaca39df9bbfa9277ff15715c720;hp=0000000000000000000000000000000000000000;hpb=3a5f70173aa04d11ccb22694d5d31a702cad33ab;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/utils.cpp b/src/bin/lttng-sessiond/utils.cpp
new file mode 100644
index 000000000..6936a03f9
--- /dev/null
+++ b/src/bin/lttng-sessiond/utils.cpp
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#define _LGPL_SOURCE
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <common/error.h>
+
+#include "utils.h"
+#include "snapshot.h"
+#include "lttng-sessiond.h"
+
+int the_ht_cleanup_pipe[2] = {-1, -1};
+
+/*
+ * Write to writable pipe used to notify a thread.
+ */
+int notify_thread_pipe(int wpipe)
+{
+	ssize_t ret;
+
+	/* Ignore if the pipe is invalid. */
+	if (wpipe < 0) {
+		return 0;
+	}
+
+	ret = lttng_write(wpipe, "!", 1);
+	if (ret < 1) {
+		PERROR("write poll pipe");
+	}
+
+	return (int) ret;
+}
+
+void ht_cleanup_push(struct lttng_ht *ht)
+{
+	ssize_t ret;
+	int fd = the_ht_cleanup_pipe[1];
+
+	if (!ht) {
+		return;
+	}
+	if (fd < 0)
+		return;
+	ret = lttng_write(fd, &ht, sizeof(ht));
+	if (ret < sizeof(ht)) {
+		PERROR("write ht cleanup pipe %d", fd);
+		if (ret < 0) {
+			ret = -errno;
+		}
+		goto error;
+	}
+
+	/* All good. Don't send back the write positive ret value. */
+	ret = 0;
+error:
+	LTTNG_ASSERT(!ret);
+}
+
+int loglevels_match(int a_loglevel_type, int a_loglevel_value,
+	int b_loglevel_type, int b_loglevel_value, int loglevel_all_type)
+{
+	int match = 1;
+
+	if (a_loglevel_type == b_loglevel_type) {
+		/* Same loglevel type. */
+		if (b_loglevel_type != loglevel_all_type) {
+			/*
+			 * Loglevel value must also match since the loglevel
+			 * type is not all.
+			 */
+			if (a_loglevel_value != b_loglevel_value) {
+				match = 0;
+			}
+		}
+	} else {
+		/* Loglevel type is different: no match. */
+		match = 0;
+	}
+
+	return match;
+}
+
+const char *session_get_base_path(const struct ltt_session *session)
+{
+	return consumer_output_get_base_path(session->consumer);
+}
+
+const char *consumer_output_get_base_path(const struct consumer_output *output)
+{
+	return output->type == CONSUMER_DST_LOCAL ?
+			output->dst.session_root_path :
+			output->dst.net.base_dir;
+}