summaryrefslogtreecommitdiffstats
path: root/include/iprt/cpp/path.h
blob: 445b9b59f52901e6f8fc0a9acfeab7309893d402 (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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
/** @file
 * IPRT - C++ path utilities.
 */

/*
 * Copyright (C) 2017-2023 Oracle and/or its affiliates.
 *
 * This file is part of VirtualBox base platform packages, as
 * available from https://www.virtualbox.org.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, in version 3 of the
 * License.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <https://www.gnu.org/licenses>.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
 * in the VirtualBox distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 *
 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
 */

#ifndef IPRT_INCLUDED_cpp_path_h
#define IPRT_INCLUDED_cpp_path_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif

#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/path.h>
#include <iprt/cpp/ministring.h>


/** @defgroup grp_rt_cpp_path    C++ Path Utilities
 * @ingroup grp_rt_cpp
 * @{
 */

/**
 * RTPathAbs() wrapper for working directly on a RTCString instance.
 *
 * @returns IPRT status code.
 * @param   rStrAbs         Reference to the destination string.
 * @param   pszRelative     The relative source string.
 */
DECLINLINE(int) RTPathAbsCxx(RTCString &rStrAbs, const char *pszRelative)
{
    Assert(rStrAbs.c_str() != pszRelative);
    int rc = rStrAbs.reserveNoThrow(RTPATH_MAX);
    if (RT_SUCCESS(rc))
    {
        unsigned cTries = 8;
        for (;;)
        {
            char *pszDst = rStrAbs.mutableRaw();
            size_t cbCap = rStrAbs.capacity();
            rc = RTPathAbsEx(NULL, pszRelative, RTPATH_STR_F_STYLE_HOST, pszDst, &cbCap);
            if (RT_SUCCESS(rc))
                break;
            *pszDst = '\0';
            if (rc != VERR_BUFFER_OVERFLOW)
                break;
            if (--cTries == 0)
                break;
            rc = rStrAbs.reserveNoThrow(RT_MIN(RT_ALIGN_Z(cbCap, 64), RTPATH_MAX));
            if (RT_FAILURE(rc))
                break;
        }
        rStrAbs.jolt();
    }
    return rc;
}


/**
 * RTPathAbs() wrapper for working directly on a RTCString instance.
 *
 * @returns IPRT status code.
 * @param   rStrAbs         Reference to the destination string.
 * @param   rStrRelative    Reference to the relative source string.
 */
DECLINLINE(int) RTPathAbsCxx(RTCString &rStrAbs, RTCString const &rStrRelative)
{
    return RTPathAbsCxx(rStrAbs, rStrRelative.c_str());
}



/**
 * RTPathAbsEx() wrapper for working directly on a RTCString instance.
 *
 * @returns IPRT status code.
 * @param   rStrAbs         Reference to the destination string.
 * @param   pszBase         The base path, optional.
 * @param   pszRelative     The relative source string.
 * @param   fFlags          RTPATH_STR_F_STYLE_XXX and RTPATHABS_F_XXX flags.
 */
DECLINLINE(int) RTPathAbsExCxx(RTCString &rStrAbs, const char *pszBase, const char *pszRelative, uint32_t fFlags = RTPATH_STR_F_STYLE_HOST)
{
    Assert(rStrAbs.c_str() != pszRelative);
    int rc = rStrAbs.reserveNoThrow(RTPATH_MAX);
    if (RT_SUCCESS(rc))
    {
        unsigned cTries = 8;
        for (;;)
        {
            char *pszDst = rStrAbs.mutableRaw();
            size_t cbCap = rStrAbs.capacity();
            rc = RTPathAbsEx(pszBase, pszRelative, fFlags, pszDst, &cbCap);
            if (RT_SUCCESS(rc))
                break;
            *pszDst = '\0';
            if (rc != VERR_BUFFER_OVERFLOW)
                break;
            if (--cTries == 0)
                break;
            rc = rStrAbs.reserveNoThrow(RT_MIN(RT_ALIGN_Z(cbCap, 64), RTPATH_MAX));
            if (RT_FAILURE(rc))
                break;
        }
        rStrAbs.jolt();
    }
    return rc;
}


DECLINLINE(int) RTPathAbsExCxx(RTCString &rStrAbs, RTCString const &rStrBase, RTCString const &rStrRelative, uint32_t fFlags = RTPATH_STR_F_STYLE_HOST)
{
    return RTPathAbsExCxx(rStrAbs, rStrBase.c_str(), rStrRelative.c_str(), fFlags);
}


DECLINLINE(int) RTPathAbsExCxx(RTCString &rStrAbs, const char *pszBase, RTCString const &rStrRelative, uint32_t fFlags = RTPATH_STR_F_STYLE_HOST)
{
    return RTPathAbsExCxx(rStrAbs, pszBase, rStrRelative.c_str(), fFlags);
}


DECLINLINE(int) RTPathAbsExCxx(RTCString &rStrAbs, RTCString const &rStrBase, const char *pszRelative, uint32_t fFlags = RTPATH_STR_F_STYLE_HOST)
{
    return RTPathAbsExCxx(rStrAbs, rStrBase.c_str(), pszRelative, fFlags);
}



/**
 * RTPathAppPrivateNoArch() wrapper for working directly on a RTCString instance.
 *
 * @returns IPRT status code.
 * @param   rStrDst         Reference to the destination string.
 */
DECLINLINE(int) RTPathAppPrivateNoArchCxx(RTCString &rStrDst)
{
    int rc = rStrDst.reserveNoThrow(RTPATH_MAX);
    if (RT_SUCCESS(rc))
    {
        char *pszDst = rStrDst.mutableRaw();
        rc = RTPathAppPrivateNoArch(pszDst, rStrDst.capacity());
        if (RT_FAILURE(rc))
            *pszDst = '\0';
        rStrDst.jolt();
    }
    return rc;

}


/**
 * RTPathAppend() wrapper for working directly on a RTCString instance.
 *
 * @returns IPRT status code.
 * @param   rStrDst         Reference to the destination string.
 * @param   pszAppend       One or more components to append to the path already
 *                          present in @a rStrDst.
 */
DECLINLINE(int) RTPathAppendCxx(RTCString &rStrDst, const char *pszAppend)
{
    Assert(rStrDst.c_str() != pszAppend);
    size_t cbEstimate = rStrDst.length() + 1 + strlen(pszAppend) + 1;
    int rc;
    if (rStrDst.capacity() >= cbEstimate)
        rc = VINF_SUCCESS;
    else
        rc = rStrDst.reserveNoThrow(RT_ALIGN_Z(cbEstimate, 8));
    if (RT_SUCCESS(rc))
    {
        rc = RTPathAppend(rStrDst.mutableRaw(), rStrDst.capacity(), pszAppend);
        if (rc == VERR_BUFFER_OVERFLOW)
        {
            rc = rStrDst.reserveNoThrow(RTPATH_MAX);
            if (RT_SUCCESS(rc))
                rc = RTPathAppend(rStrDst.mutableRaw(), rStrDst.capacity(), pszAppend);
        }
        rStrDst.jolt();
    }
    return rc;
}


/**
 * RTPathAppend() wrapper for working directly on a RTCString instance.
 *
 * @returns IPRT status code.
 * @param   rStrDst         Reference to the destination string.
 * @param   rStrAppend      One or more components to append to the path already
 *                          present in @a rStrDst.
 */
DECLINLINE(int) RTPathAppendCxx(RTCString &rStrDst, RTCString const &rStrAppend)
{
    Assert(&rStrDst != &rStrAppend);
    size_t cbEstimate = rStrDst.length() + 1 + rStrAppend.length() + 1;
    int rc;
    if (rStrDst.capacity() >= cbEstimate)
        rc = VINF_SUCCESS;
    else
        rc = rStrDst.reserveNoThrow(RT_ALIGN_Z(cbEstimate, 8));
    if (RT_SUCCESS(rc))
    {
        rc = RTPathAppend(rStrDst.mutableRaw(), rStrDst.capacity(), rStrAppend.c_str());
        if (rc == VERR_BUFFER_OVERFLOW)
        {
            rc = rStrDst.reserveNoThrow(RTPATH_MAX);
            if (RT_SUCCESS(rc))
                rc = RTPathAppend(rStrDst.mutableRaw(), rStrDst.capacity(), rStrAppend.c_str());
        }
        rStrDst.jolt();
    }
    return rc;
}


/** @} */

#endif /* !IPRT_INCLUDED_cpp_path_h */