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| 9 | |
| 10 | #include "Chunk.h" |
| 11 | |
| 12 | #include <stdlib.h> |
| 13 | #include <string.h> |
| 14 | |
| 15 | |
| 16 | |
| 17 | #ifdef TRACE_BTRFS |
| 18 | # define TRACE(x...); dprintf("\33[34mbtrfs:\33[0m " x) |
| 19 | #else |
| 20 | # define TRACE(x...); ; |
| 21 | #endif |
| 22 | # define FATAL(x...)dprintf("\33[34mbtrfs:\33[0m " x...) dprintf("\33[34mbtrfs:\33[0m " x) |
| 23 | |
| 24 | |
| 25 | Chunk::Chunk(struct btrfs_chunk* chunk, fsblock_t offset) |
| 26 | : |
| 27 | fChunk(NULL__null), |
| 28 | fInitStatus(B_OK((int)0)) |
| 29 | { |
| 30 | fChunkOffset = offset; |
| 31 | fChunk = (struct btrfs_chunk*)malloc(sizeof(struct btrfs_chunk) |
| 1 | Value assigned to field 'fChunk' | |
|
| 32 | + chunk->StripeCount() * sizeof(struct btrfs_stripe)); |
| 33 | if (fChunk == NULL__null) |
| 2 | | Assuming pointer value is null | |
|
| |
| 34 | fInitStatus = B_NO_MEMORY((-2147483647 - 1) + 0); |
| 35 | memcpy(fChunk, chunk, sizeof(struct btrfs_chunk) |
| 4 | | Null pointer argument in call to memory copy function |
|
| 36 | + chunk->StripeCount() * sizeof(struct btrfs_stripe)); |
| 37 | |
| 38 | TRACE("chunk[0] length %" B_PRIu64 " owner %" B_PRIu64 " stripe_length %"; |
| 39 | B_PRIu64 " type %" B_PRIu64 " stripe_count %u sub_stripes %u "; |
| 40 | "sector_size %" B_PRIu32 "\n", chunk->Length(), chunk->Owner(),; |
| 41 | chunk->StripeLength(), chunk->Type(), chunk->StripeCount(),; |
| 42 | chunk->SubStripes(), chunk->SectorSize());; |
| 43 | for(int32 i = 0; i < chunk->StripeCount(); i++) { |
| 44 | TRACE("chunk.stripe[%" B_PRId32 "].physical %" B_PRId64 " deviceid %"; |
| 45 | B_PRId64 "\n", i, chunk->stripes[i].Offset(),; |
| 46 | chunk->stripes[i].DeviceID());; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | |
| 51 | Chunk::~Chunk() |
| 52 | { |
| 53 | free(fChunk); |
| 54 | } |
| 55 | |
| 56 | |
| 57 | uint32 |
| 58 | Chunk::Size() const |
| 59 | { |
| 60 | return sizeof(struct btrfs_chunk) |
| 61 | + fChunk->StripeCount() * sizeof(struct btrfs_stripe); |
| 62 | } |
| 63 | |
| 64 | |
| 65 | status_t |
| 66 | Chunk::FindBlock(off_t logical, off_t &physical) |
| 67 | { |
| 68 | if (fChunk == NULL__null) |
| 69 | return B_NO_INIT((-2147483647 - 1) + 13); |
| 70 | |
| 71 | if (logical < (off_t)fChunkOffset |
| 72 | || logical > (off_t)(fChunkOffset + fChunk->Length())) |
| 73 | return B_BAD_VALUE((-2147483647 - 1) + 5); |
| 74 | |
| 75 | |
| 76 | physical = logical + fChunk->stripes[0].Offset() - fChunkOffset; |
| 77 | return B_OK((int)0); |
| 78 | } |
| 79 | |