| 提交 | 用户 | age | ||
| 3bd1f2 | 1 | // Copyright 2016 Tom Thorogood. All rights reserved. |
| Z | 2 | // Use of this source code is governed by a |
| 3 | // Modified BSD License license that can be found in | |
| 4 | // the LICENSE file. | |
| 5 | ||
| 6 | // +build !linux !386,!amd64 | |
| 7 | ||
| 8 | package shm | |
| 9 | ||
| 10 | /* | |
| 11 | #include <stdint.h> // For (u)int*_t | |
| 12 | #include <semaphore.h> // For sem_* | |
| 13 | ||
| 14 | typedef struct { | |
| 15 | uint32_t Next; | |
| 16 | uint32_t Prev; | |
| 17 | ||
| 18 | uint32_t DoneRead; | |
| 19 | uint32_t DoneWrite; | |
| 20 | ||
| 21 | uint64_t Size; | |
| 22 | ||
| 23 | uint8_t Flags[(0x40-(2*2*sizeof(uint32_t)+sizeof(uint64_t))&0x3f)&0x3f]; | |
| 24 | ||
| 25 | uint8_t Data[]; | |
| 26 | } shared_block_t; | |
| 27 | ||
| 28 | typedef struct { | |
| 29 | uint32_t Version; | |
| 30 | uint32_t __padding0; | |
| 31 | ||
| 32 | uint32_t BlockCount; | |
| 33 | uint32_t __padding1; | |
| 34 | ||
| 35 | uint64_t BlockSize; | |
| 36 | ||
| 37 | uint32_t ReadStart; | |
| 38 | uint32_t ReadEnd; | |
| 39 | ||
| 40 | uint32_t WriteStart; | |
| 41 | uint32_t WriteEnd; | |
| 42 | ||
| 43 | sem_t SemSignal; | |
| 44 | sem_t SemAvail; | |
| 45 | ||
| 46 | uint32_t Flags[((0x40-(4*2*sizeof(uint32_t)+sizeof(uint64_t)+2*sizeof(sem_t))&0x3f)&0x3f)/4]; | |
| 47 | ||
| 48 | shared_block_t Blocks[]; | |
| 49 | } shared_mem_t; | |
| 50 | */ | |
| 51 | import "C" | |
| 52 | ||
| 53 | type sharedBlock C.shared_block_t | |
| 54 | ||
| 55 | type sharedMem C.shared_mem_t | |
| 56 | ||
| 57 | const ( | |
| 58 | sharedHeaderSize = C.sizeof_shared_mem_t | |
| 59 | sharedFlagsSize = len(sharedMem{}.Flags) | |
| 60 | blockHeaderSize = C.sizeof_shared_block_t | |
| 61 | blockFlagsSize = len(sharedBlock{}.Flags) | |
| 62 | ||
| 63 | version = uint32((^uint(0)>>32)&0x80000000) | 0x00000001 | |
| 64 | ) | |
