class RawBitmapBase
Defined at line 34 of file ../../zircon/system/ulib/bitmap/include/bitmap/raw-bitmap.h
Base class for RawGenericBitmap, to reduce what needs to be templated.
Protected Members
size_t size_size_t * data_Public Methods
size_t size ()Returns the size of this bitmap.
Defined at line 37 of file ../../zircon/system/ulib/bitmap/include/bitmap/raw-bitmap.h
zx_status_t Shrink (size_t size)Shrinks the accessible portion of the bitmap, without re-allocating
the underlying storage.
This is useful for programs which require underlying bitmap storage
to be aligned to a certain size (initialized via Reset), but want to
restrict access to a smaller portion of the bitmap (via Shrink).
Defined at line 75 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc
bool Scan (size_t bitoff, size_t bitmax, bool is_set, size_t * out)Returns true if all bits in the range [*bitoff*, *bitmax*) match
*is_set*, otherwise returns false and sets *out* (if provided) to the
first (or last, in the case of ReverseScan) bit that doesn't match. An
empty region (i.e. *bitoff* is greater than *bitmax*, or *bitoff* is
outside the range of the bitmap) will return true.
Defined at line 83 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc
bool ReverseScan (size_t bitoff, size_t bitmax, bool is_set, size_t * out)Defined at line 104 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc
zx_status_t Find (bool is_set, size_t bitoff, size_t bitmax, size_t run_len, size_t * out)Finds the first (or last, in the case of ReverseFind) run of *run_len*
*is_set* bits, in [*bitoff*, *bitmax*). Returns the start of the run in
*out* and returns ZX_OK if a run is found, otherwise returns
ZX_ERR_NO_RESOURCES.
Defined at line 125 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc
zx_status_t ReverseFind (bool is_set, size_t bitoff, size_t bitmax, size_t run_len, size_t * out)Defined at line 142 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc
bool Get (size_t bitoff, size_t bitmax, size_t * first_unset)Returns true if all the bits in [*bitoff*, *bitmax*) are set. Afterwards,
*first_unset* will be set to the lesser of bitmax and the index of the
first unset bit after *bitoff*.
Defined at line 164 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc
zx_status_t Set (size_t bitoff, size_t bitmax)Sets all bits in the range [*bitoff*, *bitmax*). Returns an error if
bitmax
<
bitoff or size_
<
bitmax, and ZX_OK otherwise.
Defined at line 172 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc
zx_status_t Clear (size_t bitoff, size_t bitmax)Clears all bits in the range [*bitoff*, *bitmax*). Returns an error if
bitmax
<
bitoff or size_
<
bitmax, and ZX_OK otherwise.
Defined at line 187 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc
void ClearAll ()Clear all bits in the bitmap.
Defined at line 202 of file ../../zircon/system/ulib/bitmap/raw-bitmap.cc