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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /other-licenses/7zstub/src/CPP/7zip/Common/UniqBlocks.cpp | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream/124.0.1.tar.xz firefox-upstream/124.0.1.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'other-licenses/7zstub/src/CPP/7zip/Common/UniqBlocks.cpp')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/7zip/Common/UniqBlocks.cpp | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/Common/UniqBlocks.cpp b/other-licenses/7zstub/src/CPP/7zip/Common/UniqBlocks.cpp new file mode 100644 index 0000000000..5baf1a4953 --- /dev/null +++ b/other-licenses/7zstub/src/CPP/7zip/Common/UniqBlocks.cpp @@ -0,0 +1,57 @@ +// UniqBlocks.cpp
+
+#include "StdAfx.h"
+
+#include <string.h>
+
+#include "UniqBlocks.h"
+
+unsigned CUniqBlocks::AddUniq(const Byte *data, size_t size)
+{
+ unsigned left = 0, right = Sorted.Size();
+ while (left != right)
+ {
+ unsigned mid = (left + right) / 2;
+ unsigned index = Sorted[mid];
+ const CByteBuffer &buf = Bufs[index];
+ size_t sizeMid = buf.Size();
+ if (size < sizeMid)
+ right = mid;
+ else if (size > sizeMid)
+ left = mid + 1;
+ else
+ {
+ if (size == 0)
+ return index;
+ int cmp = memcmp(data, buf, size);
+ if (cmp == 0)
+ return index;
+ if (cmp < 0)
+ right = mid;
+ else
+ left = mid + 1;
+ }
+ }
+ unsigned index = Bufs.Size();
+ Sorted.Insert(left, index);
+ Bufs.AddNew().CopyFrom(data, size);
+ return index;
+}
+
+UInt64 CUniqBlocks::GetTotalSizeInBytes() const
+{
+ UInt64 size = 0;
+ FOR_VECTOR (i, Bufs)
+ size += Bufs[i].Size();
+ return size;
+}
+
+void CUniqBlocks::GetReverseMap()
+{
+ unsigned num = Sorted.Size();
+ BufIndexToSortedIndex.ClearAndSetSize(num);
+ unsigned *p = &BufIndexToSortedIndex[0];
+ const unsigned *sorted = &Sorted[0];
+ for (unsigned i = 0; i < num; i++)
+ p[sorted[i]] = i;
+}
|