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58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
#ifndef UTIL_ERSATZ_PROGRESS_H
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#define UTIL_ERSATZ_PROGRESS_H
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#include <iostream>
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#include <string>
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#include <stdint.h>
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// Ersatz version of boost::progress so core language model doesn't depend on
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// boost. Also adds option to print nothing.
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namespace util {
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extern const char kProgressBanner[];
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class ErsatzProgress {
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public:
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// No output.
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ErsatzProgress();
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// Null means no output. The null value is useful for passing along the ostream pointer from another caller.
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explicit ErsatzProgress(uint64_t complete, std::ostream *to = &std::cerr, const std::string &message = "");
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~ErsatzProgress();
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ErsatzProgress &operator++() {
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if (++current_ >= next_) Milestone();
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return *this;
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}
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ErsatzProgress &operator+=(uint64_t amount) {
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if ((current_ += amount) >= next_) Milestone();
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return *this;
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}
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void Set(uint64_t to) {
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if ((current_ = to) >= next_) Milestone();
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}
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void Finished() {
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Set(complete_);
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}
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private:
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void Milestone();
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uint64_t current_, next_, complete_;
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unsigned char stones_written_;
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std::ostream *out_;
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// noncopyable
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ErsatzProgress(const ErsatzProgress &other);
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ErsatzProgress &operator=(const ErsatzProgress &other);
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};
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} // namespace util
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#endif // UTIL_ERSATZ_PROGRESS_H
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