37 lines
1 KiB
C++
37 lines
1 KiB
C++
#include "helpers/spy_reader.h"
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#include <algorithm>
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using std::string;
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static const char * spy_read(void *data, size_t *bytes_read) {
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SpyReader *reader = static_cast<SpyReader *>(data);
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size_t size = std::min(reader->chunk_size,
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reader->content.length() - reader->position);
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const char *result = reader->content.data() + reader->position;
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reader->chunks_read.push_back(string(result, size));
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reader->position += size;
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*bytes_read = size;
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return result;
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}
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static int spy_seek(void *data, size_t position) {
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SpyReader *reader = static_cast<SpyReader *>(data);
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reader->position = position;
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return 0;
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}
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static void spy_release(void *data) {
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SpyReader *reader = static_cast<SpyReader *>(data);
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delete reader;
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}
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SpyReader::SpyReader(string content, size_t chunk_size) :
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content(content),
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position(0),
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chunk_size(chunk_size),
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input({
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.read_fn = spy_read,
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.seek_fn = spy_seek,
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.release_fn = spy_release,
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.data = this
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}) {}
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