1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#include "tensorflow/core/platform/tensor_coding.h"
#include "tensorflow/core/lib/core/coding.h"
#include "tensorflow/core/lib/core/stringpiece.h"
namespace tensorflow {
namespace port {
void AssignRefCounted(StringPiece src, core::RefCounted* obj, string* out) {
out->assign(src.data(), src.size());
}
void EncodeStringList(const string* strings, int64 n, string* out) {
out->clear();
for (int i = 0; i < n; ++i) {
core::PutVarint32(out, strings[i].size());
}
for (int i = 0; i < n; ++i) {
out->append(strings[i]);
}
}
bool DecodeStringList(const string& src, string* strings, int64 n) {
std::vector<uint32> sizes(n);
StringPiece reader(src);
int64 tot = 0;
for (auto& v : sizes) {
if (!core::GetVarint32(&reader, &v)) return false;
tot += v;
}
if (tot != static_cast<int64>(reader.size())) {
return false;
}
string* data = strings;
for (int64 i = 0; i < n; ++i, ++data) {
auto size = sizes[i];
if (size > reader.size()) {
return false;
}
data->assign(reader.data(), size);
reader.remove_prefix(size);
}
return true;
}
void CopyFromArray(string* s, const char* base, size_t bytes) {
s->assign(base, bytes);
}
} // namespace port
} // namespace tensorflow
|
