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support nim-metrics 0.1.0+ #651

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Jan 5, 2024
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support nim-metrics 0.1.0+ #651

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72 changes: 40 additions & 32 deletions eth/db/kvstore_sqlite3.nim
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Original file line number Diff line number Diff line change
Expand Up @@ -712,35 +712,43 @@ proc registerCustomScalarFunction*(db: SqStoreRef, name: string, fun: CustomFunc
ok()

when defined(metrics):
import locks, tables, times,
chronicles, metrics

type Sqlite3Info = ref object of Gauge

proc newSqlite3Info*(name: string, help: string, registry = defaultRegistry): Sqlite3Info {.raises: [Exception].} =
validateName(name)
result = Sqlite3Info(name: name,
help: help,
typ: "gauge",
creationThreadId: getThreadId())
result.lock.initLock()
result.register(registry)

var sqlite3Info* {.global.} = newSqlite3Info("sqlite3_info", "SQLite3 info")

method collect*(collector: Sqlite3Info): Metrics =
result = initOrderedTable[Labels, seq[Metric]]()
result[@[]] = @[]
let timestamp = getTime().toMilliseconds()
var currentMem, highwaterMem: int64

if (let res = sqlite3_status64(SQLITE_STATUS_MEMORY_USED, currentMem.addr, highwaterMem.addr, 0); res != SQLITE_OK):
error "SQLite3 error", msg = sqlite3_errstr(res)
else:
result[@[]] = @[
Metric(
name: "sqlite3_memory_used_bytes",
value: currentMem.float64,
timestamp: timestamp,
),
]
import chronicles, metrics

type Sqlite3Info = ref object of Collector

proc newSqlite3Info*(name: string, help: string, registry = defaultRegistry): Sqlite3Info {.raises: [CatchableError].} =
Sqlite3Info.newCollector(name, help, registry = registry)

let sqlite3Info* = newSqlite3Info("sqlite3_info", "SQLite3 info")

when declared(MetricHandler): # nim-metrics 0.1.0+
method collect*(collector: Sqlite3Info, output: MetricHandler) =
let timestamp = collector.now()

var currentMem, highwaterMem: int64

if (let res = sqlite3_status64(SQLITE_STATUS_MEMORY_USED, currentMem.addr, highwaterMem.addr, 0); res != SQLITE_OK):
error "SQLite3 error", msg = sqlite3_errstr(res)
else:
output(
name = "sqlite3_memory_used_bytes",
value = currentMem.float64,
timestamp = timestamp,
)
else: # nim-metrics 0.0.1
method collect*(collector: Sqlite3Info): Metrics =
result = initOrderedTable[Labels, seq[Metric]]()
result[@[]] = @[]
let timestamp = getTime().toMilliseconds()
var currentMem, highwaterMem: int64

if (let res = sqlite3_status64(SQLITE_STATUS_MEMORY_USED, currentMem.addr, highwaterMem.addr, 0); res != SQLITE_OK):
error "SQLite3 error", msg = sqlite3_errstr(res)
else:
result[@[]] = @[
Metric(
name: "sqlite3_memory_used_bytes",
value: currentMem.float64,
timestamp: timestamp,
),
]
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