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パフォーマンスの改善: GPIOPortMapSizeMaxを設ける (1023)

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This commit is contained in:
Nebel 2019-10-16 00:13:31 +09:00
parent 90f36eb6f1
commit 95c5572819
2 changed files with 5 additions and 2 deletions
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3
index.js
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@ -8,6 +8,7 @@ const path = require("path");
*/ */
const PollingInterval = 100; const PollingInterval = 100;
const SysfsGPIOPath = "/sys/class/gpio"; const SysfsGPIOPath = "/sys/class/gpio";
const GPIOPortMapSizeMax = 1023;
const Uint16Max = 65535; const Uint16Max = 65535;
function parseUint16(string) { function parseUint16(string) {
const n = Number.parseInt(string, 10); const n = Number.parseInt(string, 10);
@ -150,7 +151,7 @@ class OperationError extends Error {
} }
exports.OperationError = OperationError; exports.OperationError = OperationError;
async function requestGPIOAccess() { async function requestGPIOAccess() {
const ports = new GPIOPortMap([...Array(Uint16Max + 1).keys()].map(portNumber => [ const ports = new GPIOPortMap([...Array(GPIOPortMapSizeMax + 1).keys()].map(portNumber => [
portNumber, portNumber,
new GPIOPort(portNumber) new GPIOPort(portNumber)
])); ]));

4
index.ts
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@ -9,6 +9,8 @@ const PollingInterval = 100;
const SysfsGPIOPath = "/sys/class/gpio"; const SysfsGPIOPath = "/sys/class/gpio";
const GPIOPortMapSizeMax = 1023;
const Uint16Max = 65535; const Uint16Max = 65535;
function parseUint16(string: string) { function parseUint16(string: string) {
@ -227,7 +229,7 @@ export class OperationError extends Error {}
export async function requestGPIOAccess(): Promise<GPIOAccess> { export async function requestGPIOAccess(): Promise<GPIOAccess> {
const ports = new GPIOPortMap( const ports = new GPIOPortMap(
[...Array(Uint16Max + 1).keys()].map(portNumber => [ [...Array(GPIOPortMapSizeMax + 1).keys()].map(portNumber => [
portNumber, portNumber,
new GPIOPort(portNumber) new GPIOPort(portNumber)
]) ])