src/bin/lttng-sessiond/ust-error-internal.hpp

   1 /*
   2  * Copyright (C) 2011 EfficiOS Inc.
   3  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  *
   5  * SPDX-License-Identifier: LGPL-2.1-only
   6  *
   7  */
   8
   9 #ifndef _LTTNG_UST_ERROR_H
  10 #define _LTTNG_UST_ERROR_H
  11
  12 /*
  13  * This header is meant for liblttng and libust internal use ONLY.
  14  * These declarations should NOT be considered stable API.
  15  */
  16
  17 #include <limits.h>
  18 #include <unistd.h>
  19
  20 #include "lttng-ust-abi.hpp"
  21
  22 /*
  23  * ustcomm error code.
  24  */
  25 enum lttng_ust_error_code {
  26         LTTNG_UST_OK = 0,                       /* Ok */
  27         LTTNG_UST_ERR = 1024,                   /* Unknown Error */
  28         LTTNG_UST_ERR_NOENT = 1025,             /* No entry */
  29         LTTNG_UST_ERR_EXIST = 1026,             /* Object exists */
  30         LTTNG_UST_ERR_INVAL = 1027,             /* Invalid argument */
  31         LTTNG_UST_ERR_PERM  = 1028,             /* Permission denied */
  32         LTTNG_UST_ERR_NOSYS = 1029,             /* Not implemented */
  33         LTTNG_UST_ERR_EXITING = 1030,           /* Process is exiting */
  34
  35         LTTNG_UST_ERR_INVAL_MAGIC = 1031,       /* Invalid magic number */
  36         LTTNG_UST_ERR_INVAL_SOCKET_TYPE = 1032, /* Invalid socket type */
  37         LTTNG_UST_ERR_UNSUP_MAJOR = 1033,       /* Unsupported major version */
  38
  39         /* MUST be last element */
  40         LTTNG_UST_ERR_NR,                       /* Last element */
  41 };
  42
  43 /*
  44  * Return a human-readable error message for an lttng-ust error code.
  45  * code must be a positive value (or 0).
  46  */
  47 extern const char *lttng_ust_strerror(int code);
  48
  49 #endif  /* _LTTNG_UST_ERROR_H */