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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| $Format:%(describe)$ | ||
| v5.7.1 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,169 @@ | ||
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| #include "BufferUtils.hh" | ||
| #include <algorithm> // std::max | ||
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| using namespace XrdCephBuffer; | ||
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| #ifdef CEPHBUFDEBUG | ||
| // to synchronise logging statements | ||
| std::mutex cephbuf_iolock; | ||
| #endif | ||
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| // ------------------------------------------------------ // | ||
| // Extent // | ||
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| bool Extent::in_extent(off_t pos) const | ||
| { | ||
| return ((pos > begin()) && (pos < end())); | ||
| } | ||
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| bool Extent::isContiguous(const Extent &rhs) const | ||
| { | ||
| // does the rhs connect directly to the end of the first | ||
| if (end() != rhs.begin()) | ||
| return false; | ||
| return true; | ||
| } | ||
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| bool Extent::allInExtent(off_t pos, size_t len) const | ||
| { | ||
| // is all the range in this extent | ||
| if ((pos < begin()) || (pos >= end())) | ||
| return false; | ||
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| if (off_t(pos + len) > end()) | ||
| return false; | ||
| return true; | ||
| } | ||
| bool Extent::someInExtent(off_t pos, size_t len) const | ||
| { // is some of the range in this extent | ||
| if ((off_t(pos + len) < begin()) || (pos >= end())) | ||
| return false; | ||
| return true; | ||
| } | ||
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| Extent Extent::containedExtent(off_t pos, size_t len) const | ||
| { | ||
| // return the subset of input range that is in this extent | ||
| off_t subbeg = std::max(begin(), pos); | ||
| off_t subend = std::min(end(), off_t(pos + len)); | ||
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| return Extent(subbeg, subend - subbeg); | ||
| } | ||
| Extent Extent::containedExtent(const Extent &rhs) const | ||
| { | ||
| return containedExtent(rhs.begin(), rhs.len()); | ||
| } | ||
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| bool Extent::operator<(const Extent &rhs) const | ||
| { | ||
| // comparison primarily on begin values | ||
| // use end values if begin values are equal. | ||
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| if (begin() > rhs.begin()) return false; | ||
| if (begin() < rhs.begin()) return true; | ||
| if (end() < rhs.end() ) return true; | ||
| return false; | ||
| } | ||
| bool Extent::operator==(const Extent &rhs) const | ||
| { | ||
| // equivalence based only on start and end | ||
| if (begin() != rhs.begin()) | ||
| return false; | ||
| if (end() != rhs.end()) | ||
| return false; | ||
| return true; | ||
| } | ||
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| // ------------------------------------------------------ // | ||
| // ExtentHolder // | ||
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| ExtentHolder::ExtentHolder() {} | ||
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| ExtentHolder::ExtentHolder(size_t elements) | ||
| { | ||
| m_extents.reserve(elements); | ||
| } | ||
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| ExtentHolder::ExtentHolder(const ExtentContainer &extents) | ||
| { | ||
| m_extents.reserve(extents.size()); | ||
| for (ExtentContainer::const_iterator vit = m_extents.cbegin(); vit != m_extents.cend(); ++vit) { | ||
| push_back(*vit); | ||
| } | ||
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| } | ||
| ExtentHolder::~ExtentHolder() | ||
| { | ||
| m_extents.clear(); | ||
| } | ||
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| void ExtentHolder::push_back(const Extent & in) { | ||
| if (size()) { | ||
| m_begin = std::min(m_begin, in.begin()); | ||
| m_end = std::max(m_end, in.end()); | ||
| } else { | ||
| m_begin = in.begin(); | ||
| m_end = in.end(); | ||
| } | ||
| return m_extents.push_back(in); | ||
| } | ||
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| Extent ExtentHolder::asExtent() const { | ||
| // if (!size()) return Extent(0,0); | ||
| // ExtentContainer se = getSortedExtents(); | ||
| // off_t b = se.front().begin(); | ||
| // off_t e = se.back().end(); | ||
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| return Extent(m_begin, m_end-m_begin); | ||
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| } | ||
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| size_t ExtentHolder::bytesContained() const { | ||
| size_t nbytes{0}; | ||
| for (ExtentContainer::const_iterator vit = m_extents.cbegin(); vit != m_extents.cend(); ++vit) { | ||
| nbytes += vit->len(); | ||
| } | ||
| return nbytes; | ||
| } | ||
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| size_t ExtentHolder::bytesMissing() const { | ||
| size_t bytesUsed = bytesContained(); | ||
| size_t totalRange = asExtent().len(); //might be expensive to call | ||
| return totalRange - bytesUsed; | ||
| } | ||
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| void ExtentHolder::sort() { | ||
| std::sort(m_extents.begin(), m_extents.end()); | ||
| } | ||
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| ExtentContainer ExtentHolder::getSortedExtents() const { | ||
| ExtentContainer v; | ||
| v.assign(m_extents.begin(), m_extents.end() ); | ||
| std::sort(v.begin(), v.end()); | ||
| return v; | ||
| } | ||
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| ExtentContainer ExtentHolder::getExtents() const { | ||
| ExtentContainer v; | ||
| v.assign(m_extents.begin(), m_extents.end() ); | ||
| return v; | ||
| } | ||
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| // ------------------------------------------------------ // | ||
| // Timer ns // | ||
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| Timer_ns::Timer_ns(long &output) : m_output_val(output) | ||
| { | ||
| m_start = std::chrono::steady_clock::now(); | ||
| } | ||
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| Timer_ns::~Timer_ns() | ||
| { | ||
| auto end = std::chrono::steady_clock::now(); | ||
| m_output_val = std::chrono::duration_cast<std::chrono::nanoseconds>(end - m_start).count(); | ||
| } |
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