BadVPN – Blame information for rev 1
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| 1 | office | 1 | /** |
| 2 | * @file debugerror.h |
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| 3 | * @author Ambroz Bizjak <ambrop7@gmail.com> |
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| 4 | * |
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| 5 | * @section LICENSE |
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| 6 | * |
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| 7 | * Redistribution and use in source and binary forms, with or without |
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| 8 | * modification, are permitted provided that the following conditions are met: |
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| 9 | * 1. Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * 3. Neither the name of the author nor the |
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| 15 | * names of its contributors may be used to endorse or promote products |
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| 16 | * derived from this software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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| 19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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| 20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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| 22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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| 23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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| 24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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| 25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | * |
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| 29 | * @section DESCRIPTION |
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| 30 | * |
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| 31 | * Mechanism for ensuring an object is destroyed from inside an error handler |
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| 32 | * or its jobs. |
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| 33 | */ |
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| 34 | |||
| 35 | #ifndef BADVPN_MISC_DEBUGERROR_H |
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| 36 | #define BADVPN_MISC_DEBUGERROR_H |
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| 37 | |||
| 38 | #include <misc/debug.h> |
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| 39 | #include <base/BPending.h> |
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| 40 | |||
| 41 | #ifndef NDEBUG |
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| 42 | #define DEBUGERROR(de, call) \ |
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| 43 | { \ |
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| 44 | ASSERT(!BPending_IsSet(&(de)->job)) \ |
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| 45 | BPending_Set(&(de)->job); \ |
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| 46 | (call); \ |
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| 47 | } |
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| 48 | #else |
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| 49 | #define DEBUGERROR(de, call) { (call); } |
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| 50 | #endif |
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| 51 | |||
| 52 | typedef struct { |
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| 53 | #ifndef NDEBUG |
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| 54 | BPending job; |
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| 55 | #else |
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| 56 | int dummy_field; // struct must have at least one field |
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| 57 | #endif |
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| 58 | } DebugError; |
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| 59 | |||
| 60 | static void DebugError_Init (DebugError *o, BPendingGroup *pg); |
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| 61 | static void DebugError_Free (DebugError *o); |
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| 62 | static void DebugError_AssertNoError (DebugError *o); |
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| 63 | |||
| 64 | #ifndef NDEBUG |
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| 65 | static void _DebugError_job_handler (DebugError *o) |
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| 66 | { |
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| 67 | ASSERT(0); |
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| 68 | } |
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| 69 | #endif |
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| 70 | |||
| 71 | void DebugError_Init (DebugError *o, BPendingGroup *pg) |
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| 72 | { |
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| 73 | #ifndef NDEBUG |
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| 74 | BPending_Init(&o->job, pg, (BPending_handler)_DebugError_job_handler, o); |
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| 75 | #endif |
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| 76 | } |
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| 77 | |||
| 78 | void DebugError_Free (DebugError *o) |
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| 79 | { |
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| 80 | #ifndef NDEBUG |
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| 81 | BPending_Free(&o->job); |
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| 82 | #endif |
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| 83 | } |
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| 84 | |||
| 85 | void DebugError_AssertNoError (DebugError *o) |
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| 86 | { |
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| 87 | #ifndef NDEBUG |
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| 88 | ASSERT(!BPending_IsSet(&o->job)) |
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| 89 | #endif |
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| 90 | } |
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| 91 | |||
| 92 | #endif |