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

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