diff options
Diffstat (limited to 'src/nc-util.h')
| -rw-r--r-- | src/nc-util.h | 78 |
1 files changed, 74 insertions, 4 deletions
diff --git a/src/nc-util.h b/src/nc-util.h index d0afe28..2ddfd3f 100644 --- a/src/nc-util.h +++ b/src/nc-util.h @@ -102,6 +102,26 @@ typedef struct read_only_memory_span_struct uint32_t size; } cspan_t; +static _nc_fn_inline int ncSpanIsValid(span_t span) +{ + return span.data != NULL; +} + +static _nc_fn_inline int ncSpanIsValidC(cspan_t span) +{ + return span.data != NULL; +} + +static _nc_fn_inline int ncSpanIsValidRange(span_t span, uint32_t offset, uint32_t size) +{ + return ncSpanIsValid(span) && offset + size <= span.size; +} + +static _nc_fn_inline int ncSpanIsValidRangeC(cspan_t span, uint32_t offset, uint32_t size) +{ + return ncSpanIsValidC(span) && offset + size <= span.size; +} + static _nc_fn_inline void ncSpanInitC(cspan_t* span, const uint8_t* data, uint32_t size) { span->data = data; @@ -114,9 +134,25 @@ static _nc_fn_inline void ncSpanInit(span_t* span, uint8_t* data, uint32_t size) span->size = size; } +static _nc_fn_inline const uint8_t* ncSpanGetOffsetC(cspan_t span, uint32_t offset) +{ + DEBUG_ASSERT2(ncSpanIsValidC(span), "Expected span to be non-null"); + DEBUG_ASSERT2(offset < span.size, "Expected offset to be less than span size"); + + return span.data + offset; +} + +static _nc_fn_inline uint8_t* ncSpanGetOffset(span_t span, uint32_t offset) +{ + DEBUG_ASSERT2(ncSpanIsValid(span), "Expected span to be non-null"); + DEBUG_ASSERT2(offset < span.size, "Expected offset to be less than span size"); + + return span.data + offset; +} + static _nc_fn_inline void ncSpanWrite(span_t span, uint32_t offset, const uint8_t* data, uint32_t size) { - DEBUG_ASSERT2(span.data != NULL, "Expected span to be non-null") + DEBUG_ASSERT2(ncSpanIsValid(span), "Expected span to be non-null") DEBUG_ASSERT2(data != NULL, "Expected data to be non-null") DEBUG_ASSERT2(offset + size <= span.size, "Expected offset + size to be less than span size") @@ -126,7 +162,7 @@ static _nc_fn_inline void ncSpanWrite(span_t span, uint32_t offset, const uint8_ static _nc_fn_inline void ncSpanAppend(span_t span, uint32_t* offset, const uint8_t* data, uint32_t size) { - DEBUG_ASSERT2(span.data != NULL, "Expected span to be non-null") + DEBUG_ASSERT2(ncSpanIsValid(span), "Expected span to be non-null") DEBUG_ASSERT2(offset != NULL, "Expected offset to be non-null") DEBUG_ASSERT2(data != NULL, "Expected data to be non-null") DEBUG_ASSERT2(*offset + size <= span.size, "Expected offset + size to be less than span size") @@ -142,7 +178,7 @@ static _nc_fn_inline span_t ncSpanSlice(span_t span, uint32_t offset, uint32_t s { span_t slice; - DEBUG_ASSERT2(span.data != NULL, "Expected span to be non-null"); + DEBUG_ASSERT2(ncSpanIsValid(span), "Expected span to be non-null"); DEBUG_ASSERT2(offset + size <= span.size, "Expected offset + size to be less than span size") /* Initialize slice, offset input data by the specified offset */ @@ -155,7 +191,7 @@ static _nc_fn_inline cspan_t ncSpanSliceC(cspan_t span, uint32_t offset, uint32_ { cspan_t slice; - DEBUG_ASSERT2(span.data != NULL, "Expected span to be non-null"); + DEBUG_ASSERT2(ncSpanIsValidC(span), "Expected span to be non-null"); DEBUG_ASSERT2(offset + size <= span.size, "Expected offset + size to be less than span size") /* Initialize slice, offset input data by the specified offset */ @@ -164,5 +200,39 @@ static _nc_fn_inline cspan_t ncSpanSliceC(cspan_t span, uint32_t offset, uint32_ return slice; } +static _nc_fn_inline void ncSpanCopyC(cspan_t src, span_t dest) +{ + DEBUG_ASSERT2(ncSpanIsValidC(src), "Expected span to be non-null"); + DEBUG_ASSERT2(ncSpanIsValid(dest), "Expected offset + size to be less than span size"); + DEBUG_ASSERT2(dest.size >= src.size, "Output buffer too small. Overrun detected"); + + /* Copy data to span */ + MEMMOV(dest.data, src.data, src.size); +} + +static _nc_fn_inline void ncSpanCopy(span_t src, span_t dest) +{ + cspan_t csrc; + + ncSpanInitC(&csrc, src.data, src.size); + ncSpanCopyC(csrc, dest); +} + +static _nc_fn_inline void ncSpanReadC(cspan_t src, uint8_t* dest, uint32_t size) +{ + span_t dsts; + + ncSpanInit(&dsts, dest, size); + ncSpanCopyC(src, dsts); +} + +static _nc_fn_inline void ncSpanRead(span_t src, uint8_t* dest, uint32_t size) +{ + cspan_t srcs; + + ncSpanInitC(&srcs, src.data, src.size); + ncSpanReadC(srcs, dest, size); +} + #endif /* !_NC_UTIL_H */
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