X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Flib%2Flttng-ctl%2Fsave.cpp;fp=src%2Flib%2Flttng-ctl%2Fsave.cpp;h=45894277a04c15f47b480ac2a9c13fa69e0fee0a;hp=0000000000000000000000000000000000000000;hb=4bd69c5f1161cd065f487da0f4c1aa03a73c47e4;hpb=657d1bf105996bf8f6e13af697fb1112afa61b28

diff --git a/src/lib/lttng-ctl/save.cpp b/src/lib/lttng-ctl/save.cpp
new file mode 100644
index 000000000..45894277a
--- /dev/null
+++ b/src/lib/lttng-ctl/save.cpp
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#define _LGPL_SOURCE
+#include <string.h>
+
+#include <lttng/lttng-error.h>
+#include <lttng/save.h>
+#include <lttng/save-internal.h>
+#include <common/sessiond-comm/sessiond-comm.h>
+
+#include "lttng-ctl-helper.h"
+
+struct lttng_save_session_attr *lttng_save_session_attr_create(void)
+{
+	return (lttng_save_session_attr *) zmalloc(sizeof(struct lttng_save_session_attr));
+}
+
+void lttng_save_session_attr_destroy(struct lttng_save_session_attr *output)
+{
+	if (output) {
+		free(output);
+	}
+}
+
+const char *lttng_save_session_attr_get_session_name(
+	struct lttng_save_session_attr *attr)
+{
+	const char *ret = NULL;
+
+	if (attr && attr->session_name[0]) {
+		ret = attr->session_name;
+	}
+
+	return ret;
+}
+
+const char *lttng_save_session_attr_get_output_url(
+	struct lttng_save_session_attr *attr)
+{
+	const char *ret = NULL;
+
+	if (attr && attr->configuration_url[0]) {
+		ret = attr->configuration_url;
+	}
+
+	return ret;
+}
+
+int lttng_save_session_attr_get_overwrite(
+	struct lttng_save_session_attr *attr)
+{
+	return attr ? attr->overwrite : -LTTNG_ERR_INVALID;
+}
+
+int lttng_save_session_attr_get_omit_name(
+	struct lttng_save_session_attr *attr)
+{
+	return attr ? attr->omit_name : -LTTNG_ERR_INVALID;
+}
+
+int lttng_save_session_attr_get_omit_output(
+	struct lttng_save_session_attr *attr)
+{
+	return attr ? attr->omit_output : -LTTNG_ERR_INVALID;
+}
+
+int lttng_save_session_attr_set_session_name(
+	struct lttng_save_session_attr *attr, const char *session_name)
+{
+	int ret = 0;
+
+	if (!attr) {
+		ret = -LTTNG_ERR_INVALID;
+		goto error;
+	}
+
+	if (session_name) {
+		size_t len;
+
+		len = strlen(session_name);
+		if (len >= LTTNG_NAME_MAX) {
+			ret = -LTTNG_ERR_INVALID;
+			goto error;
+		}
+
+		ret = lttng_strncpy(attr->session_name, session_name,
+				sizeof(attr->session_name));
+		if (ret) {
+			ret = -LTTNG_ERR_INVALID;
+			goto error;
+		}
+	} else {
+		attr->session_name[0] = '\0';
+	}
+error:
+	return ret;
+}
+
+int lttng_save_session_attr_set_output_url(
+	struct lttng_save_session_attr *attr, const char *url)
+{
+	int ret = 0;
+	size_t len;
+	ssize_t size;
+	struct lttng_uri *uris = NULL;
+
+	if (!attr) {
+		ret = -LTTNG_ERR_INVALID;
+		goto error;
+	}
+
+	if (!url) {
+		attr->configuration_url[0] = '\0';
+		ret = 0;
+		goto end;
+	}
+
+	len = strlen(url);
+	if (len >= PATH_MAX) {
+		ret = -LTTNG_ERR_INVALID;
+		goto error;
+	}
+
+	size = uri_parse_str_urls(url, NULL, &uris);
+	if (size <= 0 || uris[0].dtype != LTTNG_DST_PATH) {
+		ret = -LTTNG_ERR_INVALID;
+		goto error;
+	}
+
+	/* Copy string plus the NULL terminated byte. */
+	ret = lttng_strncpy(attr->configuration_url, uris[0].dst.path,
+			    sizeof(attr->configuration_url));
+	if (ret) {
+		ret = -LTTNG_ERR_INVALID;
+		goto error;
+	}
+
+end:
+error:
+	free(uris);
+	return ret;
+}
+
+int lttng_save_session_attr_set_overwrite(
+	struct lttng_save_session_attr *attr, int overwrite)
+{
+	int ret = 0;
+
+	if (!attr) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	attr->overwrite = !!overwrite;
+end:
+	return ret;
+}
+
+int lttng_save_session_attr_set_omit_name(
+	struct lttng_save_session_attr *attr, int omit_name)
+{
+	int ret = 0;
+
+	if (!attr) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	attr->omit_name = !!omit_name;
+end:
+	return ret;
+}
+
+int lttng_save_session_attr_set_omit_output(
+	struct lttng_save_session_attr *attr, int omit_output)
+{
+	int ret = 0;
+
+	if (!attr) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	attr->omit_output = !!omit_output;
+end:
+	return ret;
+}
+
+/*
+ * The lttng-ctl API does not expose all the information needed to save the
+ * session configurations. Thus, we must send a save command to the session
+ * daemon which will, in turn, save its current session configuration.
+ */
+int lttng_save_session(struct lttng_save_session_attr *attr)
+{
+	struct lttcomm_session_msg lsm;
+	int ret;
+
+	if (!attr) {
+		ret = -LTTNG_ERR_INVALID;
+		goto end;
+	}
+
+	memset(&lsm, 0, sizeof(lsm));
+	lsm.cmd_type = LTTNG_SAVE_SESSION;
+
+	memcpy(&lsm.u.save_session.attr, attr,
+		sizeof(struct lttng_save_session_attr));
+	ret = lttng_ctl_ask_sessiond(&lsm, NULL);
+end:
+	return ret;
+}