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Golang Metric.Equal方法代码示例

本文整理汇总了Golang中github.com/prometheus/client_golang/model.Metric.Equal方法的典型用法代码示例。如果您正苦于以下问题:Golang Metric.Equal方法的具体用法?Golang Metric.Equal怎么用?Golang Metric.Equal使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/prometheus/client_golang/model.Metric的用法示例。


在下文中一共展示了Metric.Equal方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: mapFP

// mapFP takes a raw fingerprint (as returned by Metrics.FastFingerprint) and
// returns a truly unique fingerprint. The caller must have locked the raw
// fingerprint.
//
// If an error is encountered, it is returned together with the unchanged raw
// fingerprint.
func (m *fpMapper) mapFP(fp clientmodel.Fingerprint, metric clientmodel.Metric) (clientmodel.Fingerprint, error) {
	// First check if we are in the reserved FP space, in which case this is
	// automatically a collision that has to be mapped.
	if fp <= maxMappedFP {
		return m.maybeAddMapping(fp, metric)
	}

	// Then check the most likely case: This fp belongs to a series that is
	// already in memory.
	s, ok := m.fpToSeries.get(fp)
	if ok {
		// FP exists in memory, but is it for the same metric?
		if metric.Equal(s.metric) {
			// Yupp. We are done.
			return fp, nil
		}
		// Collision detected!
		return m.maybeAddMapping(fp, metric)
	}
	// Metric is not in memory. Before doing the expensive archive lookup,
	// check if we have a mapping for this metric in place already.
	m.mtx.RLock()
	mappedFPs, fpAlreadyMapped := m.mappings[fp]
	m.mtx.RUnlock()
	if fpAlreadyMapped {
		// We indeed have mapped fp historically.
		ms := metricToUniqueString(metric)
		// fp is locked by the caller, so no further locking of
		// 'collisions' required (it is specific to fp).
		mappedFP, ok := mappedFPs[ms]
		if ok {
			// Historical mapping found, return the mapped FP.
			return mappedFP, nil
		}
	}
	// If we are here, FP does not exist in memory and is either not mapped
	// at all, or existing mappings for FP are not for m. Check if we have
	// something for FP in the archive.
	archivedMetric, err := m.p.archivedMetric(fp)
	if err != nil {
		return fp, err
	}
	if archivedMetric != nil {
		// FP exists in archive, but is it for the same metric?
		if metric.Equal(archivedMetric) {
			// Yupp. We are done.
			return fp, nil
		}
		// Collision detected!
		return m.maybeAddMapping(fp, metric)
	}
	// As fp does not exist, neither in memory nor in archive, we can safely
	// keep it unmapped.
	return fp, nil
}
开发者ID:bluecmd,项目名称:prometheus,代码行数:61,代码来源:mapper.go


注:本文中的github.com/prometheus/client_golang/model.Metric.Equal方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。