summaryrefslogtreecommitdiffstats
path: root/src/H5Eprivate.h
blob: 14a73bab31f61b1b1a002b78cc9a63d17989cd88 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*
 *  Header file for error values, etc.
 */
#ifndef _H5Eprivate_H
#define _H5Eprivate_H

#include "H5Epublic.h"

/* Private headers needed by this file */
#include "H5private.h"

/* Typedef for error stack (defined in H5Epkg.h) */
typedef struct H5E_t H5E_t;

/*
 * HERROR macro, used to facilitate error reporting between a FUNC_ENTER()
 * and a FUNC_LEAVE() within a function body.  The arguments are the major
 * error number, the minor error number, and a description of the error.
 */
#define HERROR(maj_id, min_id, ...)                                                                          \
    H5E_printf_stack(NULL, __FILE__, FUNC, __LINE__, H5E_ERR_CLS_g, maj_id, min_id, __VA_ARGS__)

/*
 * HCOMMON_ERROR macro, used by HDONE_ERROR and HGOTO_ERROR
 * (Shouldn't need to be used outside this header file)
 */
#define HCOMMON_ERROR(maj, min, ...)                                                                         \
    HERROR(maj, min, __VA_ARGS__);                                                                           \
    err_occurred = TRUE;                                                                                     \
    err_occurred = err_occurred; /* Shut GCC warnings up! */

/*
 * HDONE_ERROR macro, used to facilitate error reporting between a
 * FUNC_ENTER() and a FUNC_LEAVE() within a function body, but _AFTER_ the
 * "done:" label.  The arguments are
 * the major error number, the minor error number, a return value, and a
 * description of the error.
 * (This macro can also be used to push an error and set the return value
 *      without jumping to any labels)
 */
#define HDONE_ERROR(maj, min, ret_val, ...)                                                                  \
    {                                                                                                        \
        HCOMMON_ERROR(maj, min, __VA_ARGS__);                                                                \
        ret_value = ret_val;                                                                                 \
    }

/*
 * HGOTO_ERROR macro, used to facilitate error reporting between a
 * FUNC_ENTER() and a FUNC_LEAVE() within a function body.  The arguments are
 * the major error number, the minor error number, the return value, and an
 * error string.  The return value is assigned to a variable `ret_value' and
 * control branches to the `done' label.
 */
#define HGOTO_ERROR(maj, min, ret_val, ...)                                                                  \
    {                                                                                                        \
        HCOMMON_ERROR(maj, min, __VA_ARGS__);                                                                \
        HGOTO_DONE(ret_val)                                                                                  \
    }

/*
 * HGOTO_ERROR_TAG macro, used like HGOTO_ERROR between H5_BEGIN_TAG and
 * H5_END_TAG statements.  Resets the metadata tag before leaving the function.
 */
#define HGOTO_ERROR_TAG(maj, min, ret_val, ...)                                                              \
    {                                                                                                        \
        H5AC_tag(prv_tag, NULL);                                                                             \
        HCOMMON_ERROR(maj, min, __VA_ARGS__);                                                                \
        HGOTO_DONE(ret_val)                                                                                  \
    }

/*
 * HGOTO_DONE macro, used to facilitate normal return between a FUNC_ENTER()
 * and a FUNC_LEAVE() within a function body. The argument is the return
 * value which is assigned to the `ret_value' variable.	 Control branches to
 * the `done' label.
 */
#define HGOTO_DONE(ret_val)                                                                                  \
    {                                                                                                        \
        ret_value = ret_val;                                                                                 \
        goto done;                                                                                           \
    }

/*
 * HGOTO_DONE_TAG macro, used like HGOTO_DONE between H5_BEGIN_TAG and
 * H5_END_TAG statements.  Resets the metadata tag before leaving the function.
 */
#define HGOTO_DONE_TAG(ret_val)                                                                              \
    {                                                                                                        \
        H5AC_tag(prv_tag, NULL);                                                                             \
        HGOTO_DONE(ret_val)                                                                                  \
    }

/*
 * Macros handling system error messages as described in C standard.
 * These macros assume errnum is a valid system error code.
 */

/* Retrieve the error code description string and push it onto the error
 * stack.
 */
#define HSYS_DONE_ERROR(majorcode, minorcode, retcode, str)                                                  \
    {                                                                                                        \
        int myerrno = errno;                                                                                 \
        HDONE_ERROR(majorcode, minorcode, retcode, "%s, errno = %d, error message = '%s'", str, myerrno,     \
                    HDstrerror(myerrno));                                                                    \
    }
#define HSYS_GOTO_ERROR(majorcode, minorcode, retcode, str)                                                  \
    {                                                                                                        \
        int myerrno = errno;                                                                                 \
        HGOTO_ERROR(majorcode, minorcode, retcode, "%s, errno = %d, error message = '%s'", str, myerrno,     \
                    HDstrerror(myerrno));                                                                    \
    }

#ifdef H5_HAVE_PARALLEL
/*
 * MPI error handling macros.
 */

extern char H5E_mpi_error_str[MPI_MAX_ERROR_STRING];
extern int  H5E_mpi_error_str_len;

#define HMPI_ERROR(mpierr)                                                                                   \
    {                                                                                                        \
        MPI_Error_string(mpierr, H5E_mpi_error_str, &H5E_mpi_error_str_len);                                 \
        HERROR(H5E_INTERNAL, H5E_MPIERRSTR, "%s", H5E_mpi_error_str);                                        \
    }
#define HMPI_DONE_ERROR(retcode, str, mpierr)                                                                \
    {                                                                                                        \
        HMPI_ERROR(mpierr);                                                                                  \
        HDONE_ERROR(H5E_INTERNAL, H5E_MPI, retcode, str);                                                    \
    }
#define HMPI_GOTO_ERROR(retcode, str, mpierr)                                                                \
    {                                                                                                        \
        HMPI_ERROR(mpierr);                                                                                  \
        HGOTO_ERROR(H5E_INTERNAL, H5E_MPI, retcode, str);                                                    \
    }
#endif /* H5_HAVE_PARALLEL */

/******************************************************************************/
/* Revisions to Error Macros, to go with Revisions to FUNC_ENTER/LEAVE Macros */
/******************************************************************************/

/*
 * H5E_PRINTF macro, used to facilitate error reporting between a BEGIN_FUNC()
 * and an END_FUNC() within a function body.  The arguments are the minor
 * error number, a description of the error (as a printf-like format string),
 * and an optional set of arguments for the printf format arguments.
 */
#define H5E_PRINTF(...)                                                                                      \
    H5E_printf_stack(NULL, __FILE__, FUNC, __LINE__, H5E_ERR_CLS_g, H5_MY_PKG_ERR, __VA_ARGS__)

/*
 * H5_LEAVE macro, used to facilitate control flow between a
 * BEGIN_FUNC() and an END_FUNC() within a function body.  The argument is
 * the return value.
 * The return value is assigned to a variable `ret_value' and control branches
 * to the `catch_except' label, if we're not already past it.
 */
#define H5_LEAVE(v)                                                                                          \
    {                                                                                                        \
        ret_value = v;                                                                                       \
        if (!past_catch)                                                                                     \
            goto catch_except;                                                                               \
    }

/*
 * H5E_THROW macro, used to facilitate error reporting between a
 * FUNC_ENTER() and a FUNC_LEAVE() within a function body.  The arguments are
 * the minor error number, and an error string.
 * The return value is assigned to a variable `ret_value' and control branches
 * to the `catch_except' label, if we're not already past it.
 */
#define H5E_THROW(...)                                                                                       \
    {                                                                                                        \
        H5E_PRINTF(__VA_ARGS__);                                                                             \
        H5_LEAVE(fail_value)                                                                                 \
    }

/* Macro for "catching" flow of control when an error occurs.  Note that the
 *      H5_LEAVE macro won't jump back here once it's past this point.
 */
#define CATCH                                                                                                \
catch_except:;                                                                                               \
    past_catch = TRUE;

/* Library-private functions defined in H5E package */
H5_DLL herr_t H5E_init(void);
H5_DLL herr_t H5E_printf_stack(H5E_t *estack, const char *file, const char *func, unsigned line, hid_t cls_id,
                               hid_t maj_id, hid_t min_id, const char *fmt, ...) H5_ATTR_FORMAT(printf, 8, 9);
H5_DLL herr_t H5E_clear_stack(H5E_t *estack);
H5_DLL herr_t H5E_dump_api_stack(hbool_t is_api);

#endif /* _H5Eprivate_H */