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author | Corey Hulen <corey@hulen.com> | 2016-11-22 11:05:54 -0800 |
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committer | Harrison Healey <harrisonmhealey@gmail.com> | 2016-11-22 14:05:54 -0500 |
commit | 7961599b2e41c71720a42b3bfde641f7529f05fe (patch) | |
tree | 3c039e1d3790a954ba65fe551c7b348331bce994 /vendor/github.com/prometheus/client_golang/prometheus/fnv.go | |
parent | e033dcce8e57ed6b6684227adf9b29347e4718b3 (diff) | |
download | chat-7961599b2e41c71720a42b3bfde641f7529f05fe.tar.gz chat-7961599b2e41c71720a42b3bfde641f7529f05fe.tar.bz2 chat-7961599b2e41c71720a42b3bfde641f7529f05fe.zip |
PLT-4357 adding performance monitoring (#4622)
* WIP
* WIP
* Adding metrics collection
* updating vendor packages
* Adding metrics to config
* Adding admin console page for perf monitoring
* Updating glide
* switching to tylerb/graceful
Diffstat (limited to 'vendor/github.com/prometheus/client_golang/prometheus/fnv.go')
-rw-r--r-- | vendor/github.com/prometheus/client_golang/prometheus/fnv.go | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/vendor/github.com/prometheus/client_golang/prometheus/fnv.go b/vendor/github.com/prometheus/client_golang/prometheus/fnv.go new file mode 100644 index 000000000..e3b67df8a --- /dev/null +++ b/vendor/github.com/prometheus/client_golang/prometheus/fnv.go @@ -0,0 +1,29 @@ +package prometheus + +// Inline and byte-free variant of hash/fnv's fnv64a. + +const ( + offset64 = 14695981039346656037 + prime64 = 1099511628211 +) + +// hashNew initializies a new fnv64a hash value. +func hashNew() uint64 { + return offset64 +} + +// hashAdd adds a string to a fnv64a hash value, returning the updated hash. +func hashAdd(h uint64, s string) uint64 { + for i := 0; i < len(s); i++ { + h ^= uint64(s[i]) + h *= prime64 + } + return h +} + +// hashAddByte adds a byte to a fnv64a hash value, returning the updated hash. +func hashAddByte(h uint64, b byte) uint64 { + h ^= uint64(b) + h *= prime64 + return h +} |