X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fust-error.h;h=543c894af92468283deca38bb1e217c9213b2d4a;hb=e23004b595a319f5bfd6fbc9eda600edda1cfd02;hp=49890a965db426b7488c6577b45e843c5c51ee5e;hpb=7bc53e94a229963972aa78880b361b1510fdd268;p=lttng-ust.git

diff --git a/include/lttng/ust-error.h b/include/lttng/ust-error.h
index 49890a96..543c894a 100644
--- a/include/lttng/ust-error.h
+++ b/include/lttng/ust-error.h
@@ -1,51 +1,56 @@
-#ifndef _LTTNG_UST_ERROR_H
-#define _LTTNG_UST_ERROR_H
-
 /*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- *                      Julien Desfossez <julien.desfossez@polymtl.ca>
- *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
 
-/*
- * This header is meant for liblttng and libust internal use ONLY.
- * These declarations should NOT be considered stable API.
- */
+#ifndef _LTTNG_UST_ERROR_H
+#define _LTTNG_UST_ERROR_H
 
 #include <limits.h>
 #include <unistd.h>
 #include <lttng/ust-abi.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /*
  * ustcomm error code.
  */
 enum lttng_ust_error_code {
 	LTTNG_UST_OK = 0,			/* Ok */
 	LTTNG_UST_ERR = 1024,			/* Unknown Error */
-	LTTNG_UST_ERR_NOENT,			/* No entry */
+	LTTNG_UST_ERR_NOENT = 1025,		/* No entry */
+	LTTNG_UST_ERR_EXIST = 1026,		/* Object exists */
+	LTTNG_UST_ERR_INVAL = 1027,		/* Invalid argument */
+	LTTNG_UST_ERR_PERM  = 1028,		/* Permission denied */
+	LTTNG_UST_ERR_NOSYS = 1029,		/* Not implemented */
+	LTTNG_UST_ERR_EXITING = 1030,		/* Process is exiting */
+
+	LTTNG_UST_ERR_INVAL_MAGIC = 1031,	/* Invalid magic number */
+	LTTNG_UST_ERR_INVAL_SOCKET_TYPE = 1032,	/* Invalid socket type */
+	LTTNG_UST_ERR_UNSUP_MAJOR = 1033,	/* Unsupported major version */
+	LTTNG_UST_ERR_PEERCRED = 1034,		/* Cannot get unix socket peer credentials */
+	LTTNG_UST_ERR_PEERCRED_PID = 1035,	/* Peer credentials PID is invalid. Socket appears to belong to a distinct, non-nested pid namespace. */
 
 	/* MUST be last element */
 	LTTNG_UST_ERR_NR,			/* Last element */
 };
 
 /*
- * Return a human-readable error message for an lttng-ust error code.
- * code must be a positive value (or 0).
+ * lttng_ust_strerror
+ * @code: must be a negative value of enum lttng_ust_error_code (or 0).
+ *
+ * Returns a ptr to a string representing a human readable error code from the
+ * ustcomm_return_code enum.
  */
-extern const char *lttng_ust_strerror(int code);
+const char *lttng_ust_strerror(int code);
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif	/* _LTTNG_UST_ERROR_H */