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Added specification document

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For covering all the technical bits
This commit is contained in:
Christopher Haster
2017-09-24 18:20:52 -05:00
parent 984340225b
commit 9db1a86498
3 changed files with 368 additions and 3 deletions
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7
lfs_util.h
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@@ -12,7 +12,8 @@
#include <stdio.h>
// Builtin functions
// Builtin functions, these may be replaced by more
// efficient implementations in the system
static inline uint32_t lfs_max(uint32_t a, uint32_t b) {
return (a > b) ? a : b;
}
@@ -33,10 +34,12 @@ static inline int lfs_scmp(uint32_t a, uint32_t b) {
return (int)(unsigned)(a - b);
}
// CRC-32 with polynomial = 0x04c11db7
void lfs_crc(uint32_t *crc, const void *buffer, size_t size);
// Logging functions
// Logging functions, these may be replaced by system-specific
// logging functions
#define LFS_DEBUG(fmt, ...) printf("lfs debug: " fmt "\n", __VA_ARGS__)
#define LFS_WARN(fmt, ...) printf("lfs warn: " fmt "\n", __VA_ARGS__)
#define LFS_ERROR(fmt, ...) printf("lfs error: " fmt "\n", __VA_ARGS__)