\n
\u4e00\u3001\u5148\u7834\u6848：100000 \u662f\u600e\u4e48\u4e22\u7684<\/h3>\n
\u5148\u56de\u987e\u4e0a\u8282\u8bfe\u7684"\u7f6a\u72af\u4ee3\u7801"：<\/p>\n
class CounterBox {
\n var count: Int64 = 0
\n}<\/p>\n
\/\/ 10 \u4e2a\u7ebf\u7a0b，\u6bcf\u4e2a\u628a box.count += 1 \u6267\u884c 10000 \u6b21<\/p>\n
count += 1 \u770b\u8d77\u6765\u662f"\u4e00\u53e5\u8bdd"，\u4f46\u5bf9 CPU \u6765\u8bf4\u662f\u4e09\u6761\u6307\u4ee4：<\/p>\n
\u4e24\u4e2a\u7ebf\u7a0b\u53ef\u80fd\u540c\u65f6\u8bfb\u5230\u540c\u4e00\u4e2a\u65e7\u503c：<\/p>\n
\u7ebf\u7a0b A：\u8bfb 100 \u2500\u2500\u2192 \u52a0\u5230 101 \u2500\u2500\u2192 \u5199\u56de 101
\n\u7ebf\u7a0b B： \u8bfb 100 \u2500\u2500\u2192 \u52a0\u5230 101 \u2500\u2500\u2192 \u5199\u56de 101<\/p>\n
\u4e24\u6b21\u52a0\u6cd5，\u7ed3\u679c\u53ea\u6da8\u4e86 1\u2014\u2014\u53e6\u4e00\u6b21\u51ed\u7a7a\u4e22\u4e86\u300210 \u4e2a\u7ebf\u7a0b\u62a2\u5f97\u8d8a\u51f6，\u4e22\u5f97\u8d8a\u591a\u3002<\/p>\n
\u7834\u6848\u7ed3\u8bba：\u53ea\u8981\u4e00\u4e2a\u64cd\u4f5c\u4e2d\u95f4\u80fd\u88ab\u522b\u7684\u7ebf\u7a0b\u63d2\u8fdb\u6765，\u5b83\u5c31\u662f\u4e0d\u5b89\u5168\u7684\u3002\u89e3\u6cd5\u4e5f\u5f88\u76f4\u63a5\u2014\u2014\u60f3\u529e\u6cd5\u628a\u8fd9\u4e09\u6b65"\u9501"\u5728\u4e00\u8d77，\u8ba9\u540c\u4e00\u65f6\u523b\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u52a8 count\u3002\u8fd9\u5c31\u662f\u540c\u6b65\u539f\u8bed\u5e72\u7684\u4e8b\u3002<\/p>\n
📌 \u672c\u8bfe\u6240\u6709\u7c7b\u578b\u90fd\u5728 std.sync \u5305\u91cc（sync = synchronization，\u540c\u6b65），\u7528\u5230\u65f6\u6587\u4ef6\u5f00\u5934\u5199 import std.sync.*\u3002spawn\u3001Future\u3001get()\u3001sleep\u3001Duration \u4ecd\u5728 std.core，\u4e0d\u7528 import\u3002<\/p>\n
\n
\u4e8c\u3001Mutex \u4e92\u65a5\u9501：lock \/ unlock \u4e0e synchronized \u5757<\/h3>\n
Mutex（mutual exclusion \u7684\u7f29\u5199，\u8bfb\u4f5c"\u7f2a\u6cf0\u514b\u65af"）\u5c31\u662f\u4e00\u628a\u9501\u3002\u6700\u6734\u7d20\u7684\u7528\u6cd5\u662f\u624b\u52a8 lock() \/ unlock()：<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let lock = Mutex()
\n lock.lock()
\n println("\u6211\u62ff\u5230\u9501\u4e86")
\n lock.unlock()<\/p>\n
if (lock.tryLock()) {
\n println("\u8fd9\u6b21\u4e5f\u62ff\u5230\u4e86")
\n lock.unlock()
\n } else {
\n println("\u9501\u88ab\u5360\u7740，\u6ca1\u62ff\u5230")
\n }
\n return 0
\n}<\/p>\n
\u8fd0\u884c\u7ed3\u679c：<\/p>\n
\u6211\u62ff\u5230\u9501\u4e86
\n\u8fd9\u6b21\u4e5f\u62ff\u5230\u4e86<\/p>\n
\u89c4\u5219\u5f88\u7b80\u5355：<\/p>\n
- \n
- lock()：\u62ff\u9501\u3002\u9501\u5982\u679c\u6b63\u88ab\u522b\u7684\u7ebf\u7a0b\u62ff\u7740，\u6211\u5c31\u7ad9\u5728\u95e8\u53e3\u7b49（\u963b\u585e），\u76f4\u5230\u62ff\u5230\u4e3a\u6b62；<\/li>\n
- unlock()：\u653e\u9501，\u8ba9\u7ed9\u522b\u4eba；<\/li>\n
- tryLock()：\u8bd5\u4e00\u4e0b，\u62ff\u5230\u8fd4\u56de true，\u62ff\u4e0d\u5230\u4e0d\u7b49\u3001\u7acb\u523b\u8fd4\u56de false\u3002\u9002\u5408"\u62ff\u4e0d\u5230\u5c31\u7b97\u4e86"\u7684\u573a\u666f\u3002<\/li>\n<\/ul>\n
\u4f46\u624b\u52a8\u914d\u5bf9\u5bb9\u6613\u51fa\u9519\u2014\u2014\u52a0\u4e86\u9501\u5fd8\u4e86\u89e3，\u5176\u4ed6\u7ebf\u7a0b\u5c31\u5f97\u6c38\u8fdc\u6392\u961f\u3002\u4ed3\u9889\u63d0\u4f9b\u4e86\u66f4\u7701\u5fc3\u7684 synchronized \u5757：<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let lock = Mutex()
\n var count = 0
\n synchronized (lock) {
\n count += 1 \/\/ \u8fd9\u6bb5\u4ee3\u7801\u540c\u4e00\u65f6\u523b\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u6267\u884c
\n }
\n println("count = ${count}")
\n return 0
\n}<\/p>\ncount = 1<\/p>\n
synchronized (lock) { … } \u7684\u610f\u601d\u662f：\u201c\u6267\u884c\u82b1\u62ec\u53f7\u91cc\u7684\u4ee3\u7801\u524d\u5148\u62ff\u9501，\u82b1\u62ec\u53f7\u7ed3\u675f\u65f6\u81ea\u52a8\u653e\u9501\u201d\u3002<\/p>\n
\u81ea\u52a8\u5230\u4ec0\u4e48\u7a0b\u5ea6？\u91cc\u9762\u629b\u5f02\u5e38，\u9501\u4e5f\u7167\u653e\u4e0d\u8bef：<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let lock = Mutex()
\n try {
\n synchronized (lock) {
\n throw IllegalArgumentException("\u6545\u610f\u6363\u4e71")
\n }
\n } catch (e: IllegalArgumentException) {
\n println("\u6355\u83b7\u5f02\u5e38：${e.message}")
\n }
\n lock.lock()
\n println("\u9501\u8fd8\u80fd\u62ff\u5230：synchronized \u5df2\u81ea\u52a8\u91ca\u653e")
\n lock.unlock()
\n return 0
\n}<\/p>\n\u6355\u83b7\u5f02\u5e38：\u6545\u610f\u6363\u4e71
\n\u9501\u8fd8\u80fd\u62ff\u5230：synchronized \u5df2\u81ea\u52a8\u91ca\u653e<\/p>\n📌 \u7ed3\u8bba：99% \u7684\u573a\u666f\u90fd\u7528 synchronized，\u4e0d\u8981\u624b\u5199 lock\/unlock\u3002 \u672c\u8bfe\u540e\u9762\u53ea\u6709"\u521b\u5efa\u6761\u4ef6\u53d8\u91cf"\u90a3\u4e00\u5904\u5fc5\u987b\u624b\u52a8\u52a0\u9501（\u7b2c\u516d\u8282\u4f1a\u8bb2\u539f\u56e0）\u3002<\/p>\n
🔸 \u7248\u672c\u5c0f\u63d0\u793a：SDK 1.2.0 \u7684 Mutex \u672c\u8eab\u5c31\u662f\u53ef\u91cd\u5165\u7684\u2014\u2014\u540c\u4e00\u4e2a\u7ebf\u7a0b\u5bf9\u540c\u4e00\u628a\u9501\u8fde\u7eed lock() \u4e24\u6b21\u4e0d\u4f1a\u6b7b\u9501，\u89e3\u4e24\u6b21\u5373\u53ef\u3002\u65e7\u8d44\u6599\u91cc\u7684 ReentrantMutex \u5df2\u5e9f\u5f03，\u7f16\u8bd1\u4f1a\u544a\u8b66：warning: class 'ReentrantMutex' is deprecated. Use 'public class Mutex' instead.，\u770b\u5230\u5b83\u76f4\u63a5\u6362\u6210 Mutex \u5373\u53ef\u3002<\/p>\n
\n\u4e09\u3001\u4fee\u590d CounterBox（\u65b9\u6848\u4e00：synchronized）<\/h3>\n
\u628a\u4e0a\u8282\u8bfe\u7684 CounterBox \u6539\u9020\u4e00\u4e0b：\u7ed9\u5b83\u914d\u4e00\u628a\u9501，\u6240\u6709\u5bf9 count \u7684\u4fee\u6539\u90fd\u5fc5\u987b\u7a7f\u8fc7\u8fd9\u628a\u9501：<\/p>\n
import std.sync.*
\nimport std.collection.ArrayList<\/p>\nclass SafeCounter {
\n let lock = Mutex()
\n var count: Int64 = 0<\/p>\nfunc addOne() {
\n synchronized (lock) {
\n count += 1
\n }
\n }
\n}<\/p>\nmain(): Int64 {
\n let box = SafeCounter()
\n let futures = ArrayList<Future<Unit>>()
\n for (_ in 1..=10) {
\n futures.add(spawn {
\n for (_ in 1..=10000) {
\n box.addOne()
\n }
\n })
\n }
\n for (f in futures) {
\n f.get()
\n }
\n println("\u671f\u671b 100000，\u5b9e\u9645 ${box.count}")
\n return 0
\n}<\/p>\n\u8fde\u8dd1\u4e09\u6b21：<\/p>\n
\u671f\u671b 100000，\u5b9e\u9645 100000<\/p>\n
\u671f\u671b 100000，\u5b9e\u9645 100000<\/p>\n
\u671f\u671b 100000，\u5b9e\u9645 100000<\/p>\n
\u4e09\u6b21\u90fd\u662f 100000\u3002\u539f\u6765\u7684"\u8bfb\u2014\u6539\u2014\u5199"\u88ab synchronized \u5305\u6210\u4e86\u4e00\u4e2a\u4e0d\u53ef\u5206\u5272\u7684\u6574\u4f53：\u7ebf\u7a0b B \u60f3\u8bfb，\u5fc5\u987b\u7b49\u7ebf\u7a0b A \u5199\u5b8c\u653e\u9501，\u8bfb\u5230\u7684\u6c38\u8fdc\u662f\u6700\u65b0\u503c\u3002\u8d26，\u7b97\u5e73\u4e86\u3002<\/p>\n
\u6ce8\u610f\u4e24\u4e2a\u548c\u4e0a\u8282\u8bfe\u4e00\u8109\u76f8\u627f\u7684\u7ec6\u8282：<\/p>\n
- box \u4ecd\u7136\u662f let（\u5f15\u7528\u4e0d\u53d8），\u53ef\u53d8\u7684\u662f\u5bf9\u8c61\u5185\u90e8，spawn \u7684\u6355\u83b7\u89c4\u5219\u6ca1\u53d8；<\/li>\n
- \u6700\u540e\u5fc5\u987b\u9010\u4e2a get() \u7b49\u9f50 10 \u4e2a\u7ebf\u7a0b，\u5426\u5219 main \u4e00\u7ed3\u675f\u8fdb\u7a0b\u5c31\u6536\u961f\u4e86\u3002<\/li>\n
\n\u56db\u3001Atomic \u539f\u5b50\u7c7b\u578b<\/h3>\n
Mutex \u662f"\u8c01\u90fd\u522b\u62a2，\u6392\u961f\u6765"\u3002\u8fd8\u6709\u4e00\u79cd\u66f4\u8f7b\u91cf\u7684\u601d\u8def：\u8ba9\u53d8\u91cf\u672c\u8eab\u7684\u8bfb\u5199\u64cd\u4f5c\u5929\u751f\u4e0d\u53ef\u5206\u5272\u2014\u2014\u8fd9\u5c31\u662f\u539f\u5b50\u7c7b\u578b（atomic，"\u539f\u5b50"\u53d6"\u4e0d\u53ef\u518d\u5206"\u4e4b\u610f）\u3002<\/p>\n
4.1 \u6709\u54ea\u4e9b\u539f\u5b50\u7c7b\u578b<\/h4>\n
std.sync \u63d0\u4f9b 9 \u4e2a：<\/p>\n
\n
\u7c7b\u578b\u5305\u88c5\u7684\u666e\u901a\u7c7b\u578b<\/tr>\n \n\n AtomicBool<\/td>\n Bool<\/td>\n<\/tr>\n \n AtomicInt8 \/ AtomicInt16 \/ AtomicInt32 \/ AtomicInt64<\/td>\n Int8 \/ Int16 \/ Int32 \/ Int64<\/td>\n<\/tr>\n \n AtomicUInt8 \/ AtomicUInt16 \/ AtomicUInt32 \/ AtomicUInt64<\/td>\n UInt8 \/ UInt16 \/ UInt32 \/ UInt64<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n 4.2 \u6570\u503c\u578b\u539f\u5b50\u7c7b\u578b\u7684\u65b9\u6cd5<\/h4>\n
\u4ee5 AtomicInt64 \u4e3a\u4f8b：<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let a = AtomicInt64(10)
\n println("fetchAdd \u65e7\u503c：${a.fetchAdd(5)}")
\n println("\u73b0\u5728：${a.load()}")
\n println("swap \u65e7\u503c：${a.swap(100)}")
\n println("\u73b0\u5728：${a.load()}")
\n println("CAS \u6210\u529f？${a.compareAndSwap(100, 200)}")
\n println("\u73b0\u5728：${a.load()}")
\n println("CAS \u5931\u8d25？${a.compareAndSwap(100, 999)}")
\n println("\u73b0\u5728：${a.load()}")
\n a.fetchSub(50)
\n println("fetchSub \u540e：${a.load()}")
\n return 0
\n}<\/p>\n\u9010\u884c\u5b9e\u6d4b\u8f93\u51fa：<\/p>\n
fetchAdd \u65e7\u503c：10
\n\u73b0\u5728：15
\nswap \u65e7\u503c：15
\n\u73b0\u5728：100
\nCAS \u6210\u529f？true
\n\u73b0\u5728：200
\nCAS \u5931\u8d25？false
\n\u73b0\u5728：200
\nfetchSub \u540e：150<\/p>\n\u65b9\u6cd5\u6e05\u5355：<\/p>\n
\n
\u65b9\u6cd5\u4f5c\u7528\u8fd4\u56de\u503c<\/tr>\n \n\n load()<\/td>\n \u8bfb\u5f53\u524d\u503c<\/td>\n \u5f53\u524d\u503c<\/td>\n<\/tr>\n \n store(v)<\/td>\n \u5199\u5165\u65b0\u503c<\/td>\n \u65e0<\/td>\n<\/tr>\n \n swap(v)<\/td>\n \u6362\u6210\u65b0\u503c<\/td>\n \u65e7\u503c<\/td>\n<\/tr>\n \n fetchAdd(v) \/ fetchSub(v)<\/td>\n \u52a0 \/ \u51cf<\/td>\n \u65e7\u503c<\/td>\n<\/tr>\n \n fetchAnd(v) \/ fetchOr(v) \/ fetchXor(v)<\/td>\n \u4f4d\u4e0e \/ \u4f4d\u6216 \/ \u4f4d\u5f02\u6216<\/td>\n \u65e7\u503c<\/td>\n<\/tr>\n \n compareAndSwap(expect, new)<\/td>\n \u5f53\u524d\u503c\u7b49\u4e8e expect \u624d\u6362\u6210 new<\/td>\n \u662f\u5426\u4ea4\u6362\u6210\u529f（Bool）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u6ce8\u610f\u4e24\u4e2a\u521d\u5b66\u8005\u6700\u5bb9\u6613\u8e29\u7684\u70b9：<\/p>\n
- fetchAdd \u8fd4\u56de\u7684\u662f\u65e7\u503c，\u4e0d\u662f\u52a0\u5b8c\u7684\u503c\u2014\u2014\u4e0a\u9762\u8f93\u51fa\u91cc fetchAdd(5) \u6253\u5370 10，\u4f46\u63a5\u7740 load() \u662f 15；<\/li>\n
- \u539f\u5b50\u7c7b\u578b\u6ca1\u6709 .value \u5b57\u6bb5，\u8bfb\u503c\u5fc5\u987b\u7528 load()\u3002\u76f4\u63a5\u5199 a.value \u7f16\u8bd1\u5668\u4f1a\u62a5：error: can not access field 'value'\u3002<\/li>\n
AtomicBool \u7528\u5f97\u6700\u591a\u7684\u662f compareAndSwap（\u7b80\u79f0 CAS）：<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let b = AtomicBool(false)
\n println("Bool CAS：${b.compareAndSwap(false, true)}")
\n println("Bool \u503c：${b.load()}")
\n b.store(false)
\n println("store \u540e：${b.load()}")
\n return 0
\n}<\/p>\nBool CAS：true
\nBool \u503c：true
\nstore \u540e：false<\/p>\n
\n\u4e94\u3001\u4fee\u590d CounterBox（\u65b9\u6848\u4e8c：AtomicInt64）<\/h3>\n
\u8ba1\u6570\u5668\u53ea\u6709\u4e00\u4e2a\u6574\u6570\u5728\u53d8，\u7528\u539f\u5b50\u7c7b\u578b\u6bd4\u52a0\u9501\u66f4\u76f4\u63a5：<\/p>\n
import std.sync.*
\nimport std.collection.ArrayList<\/p>\nclass AtomicCounter {
\n let count = AtomicInt64(0)<\/p>\nfunc addOne() {
\n count.fetchAdd(1)
\n }
\n}<\/p>\nmain(): Int64 {
\n let box = AtomicCounter()
\n let futures = ArrayList<Future<Unit>>()
\n for (_ in 1..=10) {
\n futures.add(spawn {
\n for (_ in 1..=10000) {
\n box.addOne()
\n }
\n })
\n }
\n for (f in futures) {
\n f.get()
\n }
\n println("\u671f\u671b 100000，\u5b9e\u9645 ${box.count.load()}")
\n return 0
\n}<\/p>\n\u671f\u671b 100000，\u5b9e\u9645 100000<\/p>\n
fetchAdd(1) \u8fd9\u4e00\u4e2a\u8c03\u7528\u5c31\u5b8c\u6210\u4e86"\u8bfb\u2014\u52a0\u2014\u5199"，\u4e2d\u95f4\u4e0d\u53ef\u80fd\u63d2\u8fdb\u7b2c\u4e8c\u4e2a\u7ebf\u7a0b，\u6240\u4ee5\u8fde\u9501\u90fd\u7701\u4e86\u3002\u8bfb\u7ed3\u679c\u65f6\u8bb0\u5f97\u7528 load()，\u4e0d\u80fd\u76f4\u63a5\u5199 box.count\u3002<\/p>\n
\u4e24\u79cd\u65b9\u6848\u600e\u4e48\u9009？<\/p>\n
- \n
- \u53ea\u4fdd\u62a4\u4e00\u4e2a\u6570\u5b57（\u8ba1\u6570\u5668\u3001\u5e8f\u53f7\u3001\u5f00\u5173\u6807\u5fd7）\u2192 \u7528 Atomic，\u66f4\u8f7b\u3001\u66f4\u5feb；<\/li>\n
- \u8981\u4fdd\u62a4\u4e00\u6bb5\u903b\u8f91\u6216\u591a\u4e2a\u5b57\u6bb5（\u6bd4\u5982"x \u548c y \u5fc5\u987b\u4e00\u8d77\u6539"\u3001\u201c\u5148\u5224\u65ad\u518d\u4fee\u6539\u201d）\u2192 \u7528 Mutex + synchronized\u3002\u4e00\u628a\u9501\u91cc\u60f3\u5305\u51e0\u884c\u5305\u51e0\u884c，\u539f\u5b50\u7c7b\u578b\u7ba1\u4e0d\u4e86\u591a\u884c\u903b\u8f91\u3002<\/li>\n<\/ul>\n
\n\u516d\u3001\u7ebf\u7a0b\u95f4\u7684\u7b49\u5f85\u4e0e\u901a\u77e5：Condition \u6761\u4ef6\u53d8\u91cf<\/h3>\n
\u4e92\u65a5\u9501\u89e3\u51b3\u4e86"\u62a2"\u7684\u95ee\u9898，\u4f46\u5e76\u53d1\u91cc\u8fd8\u6709\u4e00\u7c7b"\u7b49"\u7684\u95ee\u9898：\u6d88\u8d39\u8005\u7ebf\u7a0b\u8981\u7b49\u751f\u4ea7\u8005\u628a\u6570\u636e\u51c6\u5907\u597d\u3002\u4e00\u76f4\u5faa\u73af\u95ee"\u597d\u4e86\u5417？\u597d\u4e86\u5417？"（\u5fd9\u7b49）\u65e2\u6d6a\u8d39 CPU，\u53c8\u62ff\u7740\u9501\u4e0d\u653e\u3002<\/p>\n
6.1 \u4e00\u4e2a\u5b8c\u6574\u7684\u7b49\u5f85\u2014\u901a\u77e5<\/h4>\n
\u4ed3\u9889\u7684\u89e3\u6cd5\u662f Condition \u6761\u4ef6\u53d8\u91cf：\u7b49\u7684\u4eba\u8c03\u7528 wait() \u7761\u8fc7\u53bb，\u51c6\u5907\u597d\u7684\u4eba\u8c03\u7528 notify() \u628a\u5b83\u53eb\u9192\u3002<\/p>\n
import std.sync.*
\nimport std.collection.ArrayList<\/p>\nmain(): Int64 {
\n let lock = Mutex()
\n lock.lock()
\n let notEmpty = lock.condition() \/\/ \u6761\u4ef6\u53d8\u91cf\u5fc5\u987b\u7531"\u6301\u9501\u7ebf\u7a0b"\u521b\u5efa
\n lock.unlock()
\n let queue = ArrayList<Int64>()<\/p>\n\/\/ \u6d88\u8d39\u8005：\u961f\u5217\u7a7a\u5c31\u7b49
\n let consumer = spawn {
\n synchronized (lock) {
\n while (queue.size == 0) {
\n notEmpty.wait() \/\/ \u7761：\u653e\u9501\u3001\u7b49\u4eba notify
\n }
\n println("\u6d88\u8d39\u8005\u62ff\u5230：${queue[0]}")
\n }
\n }<\/p>\nsleep(Duration.millisecond * 200)<\/p>\n
\/\/ \u751f\u4ea7\u8005：\u653e\u6570\u636e，\u53eb\u9192\u6d88\u8d39\u8005
\n synchronized (lock) {
\n queue.add(42)
\n notEmpty.notify()
\n println("\u751f\u4ea7\u8005\u653e\u5165：42")
\n }
\n consumer.get()
\n return 0
\n}<\/p>\n\u751f\u4ea7\u8005\u653e\u5165：42
\n\u6d88\u8d39\u8005\u62ff\u5230：42<\/p>\n\u6267\u884c\u8fc7\u7a0b\u662f\u8fd9\u6837\u7684：<\/p>\n
- \u6d88\u8d39\u8005\u5148\u8fdb synchronized，\u53d1\u73b0\u961f\u5217\u662f\u7a7a\u7684，\u6267\u884c wait()\u2014\u2014\u7761\u8fc7\u53bb，\u540c\u65f6\u628a\u9501\u4ea4\u51fa\u6765（\u4e0d\u7136\u751f\u4ea7\u8005\u6c38\u8fdc\u8fdb\u4e0d\u6765，\u5c31\u6b7b\u9501\u4e86）；<\/li>\n
- 200 \u6beb\u79d2\u540e\u751f\u4ea7\u8005\u62ff\u5230\u9501\u3001\u653e\u5165 42\u3001notify() \u53eb\u9192\u6d88\u8d39\u8005；<\/li>\n
- \u6d88\u8d39\u8005\u91cd\u65b0\u62ff\u5230\u9501，\u4ece wait() \u9192\u6765，\u518d\u770b\u4e00\u773c while \u6761\u4ef6\u2014\u2014\u73b0\u5728\u4e0d\u7a7a\u4e86，\u9000\u51fa\u5faa\u73af\u53d6\u6570\u636e\u3002<\/li>\n
6.2 \u4e09\u4e2a\u5fc5\u987b\u8bb0\u4f4f\u7684\u89c4\u77e9<\/h4>\n
\u89c4\u77e9\u4e00：\u6761\u4ef6\u53d8\u91cf\u53ea\u80fd\u7531\u6301\u9501\u7ebf\u7a0b\u521b\u5efa\u3002<\/p>\n
lock.condition() \u8981\u6c42\u8c03\u7528\u65f6\u672c\u7ebf\u7a0b\u5df2\u7ecf\u62ff\u7740\u8fd9\u628a\u9501，\u4e0d\u7136\u540e\u679c\u662f\u4e00\u4e2a\u8fd0\u884c\u65f6\u5f02\u5e38（\u5c31\u662f\u4e0a\u9762 main \u91cc\u5148 lock() \u518d\u521b\u5efa\u518d unlock() \u7684\u539f\u56e0）：<\/p>\n
IllegalSynchronizationStateException: Mutex is not locked by current thread.<\/p>\n
\u89c4\u77e9\u4e8c：wait() \u5fc5\u987b\u653e\u5728 while \u5faa\u73af\u91cc，\u4e0d\u80fd\u7528 if\u3002<\/p>\n
\u7ebf\u7a0b\u4ece wait() \u9192\u6765\u65f6，\u6761\u4ef6\u4e0d\u4e00\u5b9a\u8fd8\u6210\u7acb（\u53ef\u80fd\u88ab\u522b\u7684\u7ebf\u7a0b\u62a2\u5148\u6539\u56de\u53bb\u4e86，\u4e5f\u53ef\u80fd\u5b58\u5728\u865a\u5047\u5524\u9192）\u3002\u7528 while，\u9192\u6765\u540e\u4f1a\u518d\u68c0\u67e5\u4e00\u6b21\u6761\u4ef6，\u4e0d\u6210\u7acb\u5c31\u7ee7\u7eed\u7761；\u7528 if \u5c31\u76f4\u63a5\u5f80\u4e0b\u51b2\u4e86\u3002<\/p>\n
\u89c4\u77e9\u4e09：wait() \/ notify() \u90fd\u8981\u5728 synchronized (lock) \u5757\u91cc\u8c03\u7528\u3002<\/p>\n
notify() \u53ea\u53eb\u9192\u4e00\u4e2a\u7b49\u5f85\u8005；\u60f3\u5168\u53eb\u9192\u7528 notifyAll()\u3002\u4e00\u4e2a\u751f\u4ea7\u8005\u914d\u4e00\u4e2a\u6d88\u8d39\u8005\u65f6 notify() \u5c31\u591f；\u591a\u4e2a\u6d88\u8d39\u8005\u62a2\u4efb\u52a1\u65f6\u8981\u7528 notifyAll()\u3002<\/p>\n
6.3 \u5e26\u8d85\u65f6\u7684\u7b49\u5f85<\/h4>\n
\u4e0d\u60f3\u65e0\u9650\u7b49？\u7ed9 wait \u4f20 timeout: \u53c2\u6570，\u8fd4\u56de Bool：\u88ab\u901a\u77e5\u5524\u9192\u8fd4\u56de true，\u8d85\u65f6\u8fd4\u56de false\u3002<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let lock = Mutex()
\n lock.lock()
\n let cond = lock.condition()
\n lock.unlock()
\n synchronized (lock) {
\n let r = cond.wait(timeout: Duration.millisecond * 100)
\n println("\u8d85\u65f6\u7b49\u5f85\u8fd4\u56de：${r}")
\n }
\n return 0
\n}<\/p>\n\u8d85\u65f6\u7b49\u5f85\u8fd4\u56de：false<\/p>\n
\u6ce8\u610f\u53c2\u6570\u540d timeout: \u4e0d\u80fd\u7701，\u6f0f\u5199\u4f1a\u62a5 error: missing argument prefix 'timeout:' for named parameter\u3002<\/p>\n
\n\u4e03\u3001Channel \u4e4b\u8c1c：1.2.0 \u5b9e\u6d4b\u6ca1\u6709，\u90a3\u5c31\u81ea\u5df1\u9020\u4e00\u4e2a<\/h3>\n
7.1 \u5148\u8bf4\u7ed3\u8bba<\/h4>\n
\u5f88\u591a\u5e76\u53d1\u8bed\u8a00（\u6bd4\u5982 Go）\u63d0\u5021\u4e00\u79cd\u6a21\u578b：\u201c\u4e0d\u8981\u901a\u8fc7\u5171\u4eab\u5185\u5b58\u6765\u901a\u4fe1，\u800c\u8981\u901a\u8fc7\u901a\u4fe1\u6765\u5171\u4eab\u5185\u5b58\u201d\u2014\u2014\u7ebf\u7a0b\u4e4b\u95f4\u4e0d\u76f4\u63a5\u62a2\u53d8\u91cf，\u800c\u662f\u5f80\u4e00\u4e2a\u53eb Channel（\u901a\u9053） \u7684\u7ba1\u5b50\u91cc\u53d1\u6d88\u606f\u3001\u6536\u6d88\u606f，\u6570\u636e\u540c\u4e00\u65f6\u523b\u53ea\u5728\u4e00\u4e2a\u7ebf\u7a0b\u624b\u91cc，\u4ece\u6839\u4e0a\u907f\u514d\u6570\u636e\u7ade\u4e89\u3002<\/p>\n
\u4e0a\u8282\u8bfe\u7684\u9884\u544a\u8bf4\u8fd9\u8282\u8bfe\u8bb2 Channel\u3002\u5907\u8bfe\u7684\u65f6\u5019\u6211\u4eec\u505a\u4e86\u4e00\u4ef6\u672c\u7cfb\u5217\u4e00\u8d2f\u7684\u4e8b：\u5728\u4ed3\u9889 SDK 1.2.0 \u91cc\u4eb2\u624b\u8bd5\u3002\u7ed3\u679c\u662f：<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let ch = Channel<Int64>()
\n ch.send(1)
\n return 0
\n}<\/p>\nerror: undeclared identifier 'Channel'<\/p>\n
\u622a\u81f3\u4ed3\u9889 SDK 1.2.0，\u6807\u51c6\u5e93\u91cc\u8fd8\u6ca1\u6709\u516c\u5f00\u7684 Channel \u7c7b\u578b（std.sync \u91cc\u6709\u9501\u3001\u6761\u4ef6\u53d8\u91cf\u3001\u539f\u5b50\u7c7b\u578b\u3001\u4fe1\u53f7\u91cf\u7b49，\u4f46\u6ca1\u6709\u901a\u9053）\u3002\u7f51\u4e0a\u4e0d\u5c11\u6587\u7ae0\u91cc\u7684 import concurrency\u3001channel.send() \u4e4b\u7c7b\u5199\u6cd5\u5728 1.2.0 \u4e0b\u90fd\u7f16\u4e0d\u8fc7，\u8bf7\u5927\u5bb6\u4ee5\u672c\u673a SDK \u7684\u5b9e\u6d4b\u4e3a\u51c6\u3002<\/p>\n
\u90a3"\u901a\u9053"\u8fd9\u4e2a\u6982\u5ff5\u5c31\u5b66\u4e0d\u4e86\u4e86\u5417？\u6070\u6070\u76f8\u53cd\u2014\u2014\u7406\u89e3\u4e86\u9501\u548c\u6761\u4ef6\u53d8\u91cf，\u4f60\u4f1a\u53d1\u73b0\u901a\u9053\u4e00\u70b9\u90fd\u4e0d\u795e\u79d8：\u5b83\u5c31\u662f\u4e00\u4e2a\u52a0\u4e86\u9501\u7684\u961f\u5217，\u914d\u4e0a\u4e24\u4e2a\u6761\u4ef6\u53d8\u91cf\u3002 \u6211\u4eec\u73b0\u5728\u5c31\u4eb2\u624b\u5b9e\u73b0\u4e00\u4e2a\u3002<\/p>\n
7.2 \u5b9e\u73b0\u4e00\u4e2a BlockingQueue（\u963b\u585e\u961f\u5217）<\/h4>\n
\u901a\u9053\u6700\u6838\u5fc3\u7684\u884c\u4e3a\u6709\u4e24\u4e2a：<\/p>\n
- \n
- \u53d1\u9001：\u961f\u5217\u6ee1\u4e86\u5c31\u7b49（\u7b49\u6d88\u8d39\u8005\u817e\u4f4d\u7f6e）；<\/li>\n
- \u63a5\u6536：\u961f\u5217\u7a7a\u4e86\u5c31\u7b49（\u7b49\u751f\u4ea7\u8005\u653e\u6570\u636e）\u3002<\/li>\n<\/ul>\n
\u7528"\u4e00\u628a\u9501 + \u4e24\u4e2a\u6761\u4ef6\u53d8\u91cf + \u7b2c 8 \u8bfe\u7684 ArrayList"\u5b9e\u73b0\u3002\u6ce8\u610f\u5220\u9664\u961f\u9996\u5143\u7d20\u7528\u7684\u662f\u7b2c 8 \u8bfe\u6559\u8fc7\u7684\u533a\u95f4\u5199\u6cd5 buf.remove(0..1)：<\/p>\n
import std.sync.*
\nimport std.collection.ArrayList<\/p>\nclass BlockingQueue<T> {
\n let buf = ArrayList<T>()
\n let capacity: Int64
\n let lock = Mutex()
\n let notEmpty: Condition
\n let notFull: Condition<\/p>\ninit(capacity: Int64) {
\n this.capacity = capacity
\n lock.lock()
\n this.notEmpty = lock.condition()
\n this.notFull = lock.condition()
\n lock.unlock()
\n }<\/p>\nfunc put(item: T) {
\n synchronized (lock) {
\n while (buf.size >= capacity) {
\n notFull.wait() \/\/ \u961f\u5217\u6ee1：\u7b49\u6d88\u8d39\u8005\u53d6\u8d70
\n }
\n buf.add(item)
\n notEmpty.notify() \/\/ \u653e\u5165\u540e：\u53eb\u9192\u7b49\u6570\u636e\u7684\u4eba
\n }
\n }<\/p>\nfunc take(): T {
\n synchronized (lock) {
\n while (buf.size == 0) {
\n notEmpty.wait() \/\/ \u961f\u5217\u7a7a：\u7b49\u751f\u4ea7\u8005\u653e\u5165
\n }
\n let item = buf[0]
\n buf.remove(0..1)
\n notFull.notify() \/\/ \u53d6\u8d70\u540e：\u53eb\u9192\u7b49\u4f4d\u7f6e\u7684\u4eba
\n return item
\n }
\n }
\n}<\/p>\n\u5bf9\u7167 Channel \u7684\u6982\u5ff5\u770b\u8fd9\u4efd\u5b9e\u73b0：<\/p>\n
\n
Channel \u6982\u5ff5\u672c\u5b9e\u73b0\u7684\u5bf9\u5e94\u7269<\/tr>\n \n\n \u53d1\u9001 send \/ \u63a5\u6536 receive<\/td>\n put \/ take<\/td>\n<\/tr>\n \n \u5e26\u7f13\u51b2\u901a\u9053，\u5bb9\u91cf n<\/td>\n BlockingQueue<T>(n)<\/td>\n<\/tr>\n \n \u53d1\u9001\u65f6\u7f13\u51b2\u6ee1\u5219\u963b\u585e<\/td>\n put \u91cc\u7684 notFull.wait()<\/td>\n<\/tr>\n \n \u63a5\u6536\u65f6\u7f13\u51b2\u7a7a\u5219\u963b\u585e<\/td>\n take \u91cc\u7684 notEmpty.wait()<\/td>\n<\/tr>\n \n \u65e0\u7f13\u51b2\u901a\u9053（\u53d1\u9001\u65b9\u548c\u63a5\u6536\u65b9\u5f53\u9762\u4ea4\u63a5）<\/td>\n \u5bb9\u91cf\u4f20 1 \u5373\u53ef\u8fd1\u4f3c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n 7.3 \u8dd1\u4e00\u4e2a\u751f\u4ea7\u8005\u2014\u6d88\u8d39\u8005<\/h4>\n
\u4e00\u4e2a\u751f\u4ea7\u8005\u653e 5 \u4e2a\u6570，\u4e00\u4e2a\u6d88\u8d39\u8005\u6536 5 \u4e2a\u6570\u3002\u4e3a\u4e86\u8ba9\u8f93\u51fa\u7a33\u5b9a\u53ef\u5bf9\u7167，\u53ea\u8ba9\u6d88\u8d39\u8005\u6253\u5370：<\/p>\n
main(): Int64 {
\n let q = BlockingQueue<Int64>(2)<\/p>\nlet producer = spawn {
\n for (i in 1..=5) {
\n q.put(i)
\n }
\n }
\n let consumer = spawn {
\n for (_ in 1..=5) {
\n let v = q.take()
\n println("\u6536\u5230：${v}")
\n }
\n }
\n producer.get()
\n consumer.get()
\n println("\u6536\u5b8c\u4e86")
\n return 0
\n}<\/p>\n\u8fde\u8dd1\u4e09\u6b21，\u8f93\u51fa\u90fd\u4e00\u6837：<\/p>\n
\u6536\u5230：1
\n\u6536\u5230：2
\n\u6536\u5230：3
\n\u6536\u5230：4
\n\u6536\u5230：5
\n\u6536\u5b8c\u4e86<\/p>\n\u751f\u4ea7\u8005\u653e\u5f97\u5feb\u4e5f\u6ca1\u7528\u2014\u2014\u961f\u5217\u5bb9\u91cf\u53ea\u6709 2，\u653e\u6ee1\u5c31\u7761；\u6d88\u8d39\u8005\u53d6\u8d70\u4e00\u4e2a\u624d\u817e\u51fa\u4e00\u4e2a\u4f4d\u7f6e\u3002\u867d\u7136\u4e24\u4e2a\u7ebf\u7a0b\u5728\u5e76\u53d1\u63a8\u8fdb，\u4f46\u6570\u636e\u7ecf\u8fc7\u961f\u5217\u65f6\u4e25\u683c\u5148\u8fdb\u5148\u51fa，\u6240\u4ee5\u6d88\u8d39\u8005\u6536\u5230\u7684\u987a\u5e8f\u6052\u4e3a 1\u21925\u3002\u8fd9\u5c31\u662f"\u7528\u901a\u4fe1\u6765\u5171\u4eab\u5185\u5b58"\u7684\u96cf\u5f62：\u8c01\u62ff\u5230\u961f\u5217\u91cc\u7684\u6570\u636e，\u8c01\u624d\u6709\u6743\u5904\u7406\u5b83\u3002<\/p>\n
🔸 \u8fd9\u4e2a\u7c7b\u523b\u610f\u53ea\u4fdd\u7559\u4e86\u901a\u9053\u6700\u672c\u8d28\u7684\u9aa8\u67b6，\u6ca1\u6709\u505a\u5173\u95ed（close）\u3001\u591a\u6d88\u8d39\u8005\u5524\u9192\u7b49\u5de5\u7a0b\u7ec6\u8282\u3002\u7b49\u5b98\u65b9 Channel \u5728\u540e\u7eed SDK \u7248\u672c\u843d\u5730\u540e，\u4f18\u5148\u7528\u5b98\u65b9\u5b9e\u73b0；\u4f46\u53ea\u8981\u7406\u89e3\u4e86\u8fd9\u4efd\u5b9e\u73b0，\u4ee5\u540e\u7528\u8c01\u7684\u901a\u9053\u90fd\u4e00\u6837\u3002<\/p>\n
\n\u516b\u3001\u5176\u5b83\u540c\u6b65\u539f\u8bed\u901f\u89c8<\/h3>\n
8.1 Semaphore \u4fe1\u53f7\u91cf：\u9650\u6d41<\/h4>\n
Semaphore(n) \u53ef\u4ee5\u7406\u89e3\u4e3a\u4e00\u6c93\u5171 n \u5f20\u7684"\u901a\u884c\u8bc1"：acquire() \u9886\u4e00\u5f20（\u53d1\u5b8c\u4e86\u5c31\u7b49），release() \u8fd8\u4e00\u5f20\u3002\u5178\u578b\u7528\u9014\u662f\u9650\u6d41\u2014\u2014\u6bd4\u5982\u540c\u65f6\u53ea\u5141\u8bb8 2 \u4e2a\u7ebf\u7a0b\u4e0b\u8f7d：<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let sem = Semaphore(2)
\n sem.acquire()
\n sem.acquire()
\n println("\u8bb8\u53ef\u7528\u5b8c\u65f6 tryAcquire：${sem.tryAcquire()}")
\n sem.release()
\n println("\u91ca\u653e\u4e00\u4e2a\u540e tryAcquire：${sem.tryAcquire()}")
\n return 0
\n}<\/p>\n\u8bb8\u53ef\u7528\u5b8c\u65f6 tryAcquire：false
\n\u91ca\u653e\u4e00\u4e2a\u540e tryAcquire：true<\/p>\n- \n
- acquire()：\u9886\u901a\u884c\u8bc1，\u6ca1\u6709\u5c31\u7b49；<\/li>\n
- tryAcquire()：\u8bd5\u9886，\u6ca1\u6709\u7acb\u523b\u8fd4\u56de false；<\/li>\n
- release()：\u8fd8\u56de\u4e00\u5f20\u3002<\/li>\n<\/ul>\n
\u591a\u7ebf\u7a0b\u7528\u6cd5\u5c31\u662f\u6a21\u677f：\u8fdb\u4e34\u754c\u533a\u524d acquire()，\u51fa\u6765 release()（\u52a1\u5fc5\u6210\u5bf9）\u3002\u8bfe\u540e\u7ec3\u4e60\u7b2c 4 \u9898\u4f1a\u7528\u5b83\u7edf\u8ba1"\u540c\u65f6\u5728\u573a\u4eba\u6570\u7684\u5cf0\u503c"\u3002<\/p>\n
8.2 Barrier \u6805\u680f：\u7b49\u4eba\u5230\u9f50\u518d\u4e00\u8d77\u8d70<\/h4>\n
Barrier(n) \u662f\u4e00\u4e2a\u96c6\u5408\u70b9：n \u4e2a\u7ebf\u7a0b\u90fd\u5230\u8fbe（\u90fd\u8c03\u7528 wait()）\u4e4b\u524d，\u5927\u5bb6\u4e00\u8d77\u7b49；\u6700\u540e\u4e00\u4e2a\u5230\u7684\u77ac\u95f4，\u5168\u4f53\u540c\u65f6\u653e\u884c\u3002\u50cf\u65c5\u6e38\u56e2"\u4eba\u9f50\u4e86\u518d\u53d1\u8f66"：<\/p>\n
import std.sync.*
\nimport std.collection.ArrayList<\/p>\nmain(): Int64 {
\n let barrier = Barrier(3)
\n let futures = ArrayList<Future<Unit>>()
\n for (i in 1..=3) {
\n futures.add(spawn {
\n println("\u7ebf\u7a0b ${i} \u5230\u8fbe\u96c6\u5408\u70b9")
\n barrier.wait()
\n println("\u7ebf\u7a0b ${i} \u4e00\u8d77\u51fa\u53d1")
\n })
\n }
\n for (f in futures) {
\n f.get()
\n }
\n return 0
\n}<\/p>\n\u4e00\u6b21\u5b9e\u6d4b\u8f93\u51fa：<\/p>\n
\u7ebf\u7a0b 3 \u5230\u8fbe\u96c6\u5408\u70b9
\n\u7ebf\u7a0b 1 \u5230\u8fbe\u96c6\u5408\u70b9
\n\u7ebf\u7a0b 2 \u5230\u8fbe\u96c6\u5408\u70b9
\n\u7ebf\u7a0b 3 \u4e00\u8d77\u51fa\u53d1
\n\u7ebf\u7a0b 1 \u4e00\u8d77\u51fa\u53d1
\n\u7ebf\u7a0b 2 \u4e00\u8d77\u51fa\u53d1<\/p>\n\u7ebf\u7a0b\u7f16\u53f7\u7684\u5148\u540e\u987a\u5e8f\u6bcf\u6b21\u53ef\u80fd\u4e0d\u540c（\u8001\u89c4\u77e9：\u8c03\u5ea6\u5668\u8bf4\u4e86\u7b97），\u4f46\u6709\u4e00\u6761\u89c4\u5f8b\u94c1\u6253\u4e0d\u53d8：\u4e09\u884c"\u5230\u8fbe\u96c6\u5408\u70b9"\u4e00\u5b9a\u5168\u90e8\u51fa\u73b0\u4e4b\u540e，\u624d\u4f1a\u51fa\u73b0\u4efb\u4f55\u4e00\u884c"\u4e00\u8d77\u51fa\u53d1"\u3002\u8fd9\u6b63\u662f\u6805\u680f\u4fdd\u8bc1\u7684\u3002<\/p>\n
8.3 ReadWriteLock \u8bfb\u5199\u9501：\u8bfb\u5171\u4eab\u3001\u5199\u72ec\u5360<\/h4>\n
ReadWriteLock \u91cc\u6709\u4e24\u628a\u9501：readLock（\u8bfb\u9501）\u548c writeLock（\u5199\u9501）\u3002\u89c4\u5219\u662f：\u591a\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u540c\u65f6\u6301\u8bfb\u9501，\u4f46\u5199\u9501\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709，\u4e14\u6301\u5199\u9501\u65f6\u522b\u4eba\u8fde\u8bfb\u90fd\u4e0d\u80fd\u8bfb\u3002\u9002\u5408"\u8bfb\u591a\u5199\u5c11"\u7684\u6570\u636e（\u6bd4\u5982\u914d\u7f6e\u8868）：<\/p>\n
import std.sync.*<\/p>\n
main(): Int64 {
\n let rw = ReadWriteLock()
\n rw.readLock.lock()
\n println("\u62ff\u5230\u8bfb\u9501")
\n rw.readLock.unlock()
\n rw.writeLock.lock()
\n println("\u62ff\u5230\u5199\u9501")
\n rw.writeLock.unlock()
\n return 0
\n}<\/p>\n\u62ff\u5230\u8bfb\u9501
\n\u62ff\u5230\u5199\u9501<\/p>\n🔸 \u65e7\u8d44\u6599\u91cc\u8fd8\u53ef\u80fd\u770b\u5230 Monitor \u7c7b\u578b（wait\/notify \u5199\u5728\u5bf9\u8c61\u672c\u8eab\u4e0a），\u5b83\u5728 1.2.0 \u5df2\u5e9f\u5f03，\u7f16\u8bd1\u544a\u8b66：warning: class 'Monitor' is deprecated. Use 'public interface Condition' instead.\u3002\u65b0\u4ee3\u7801\u7edf\u4e00\u7528\u7b2c\u516d\u8282\u7684 Mutex + Condition \u5199\u6cd5\u3002<\/p>\n
\n\u4e5d\u3001CIDE \u5b9e\u64cd：\u8fde\u8dd1\u4e09\u6b21，\u4e09\u4e2a 100000<\/h3>\n
\u5728 CIDE \u91cc cjpm init –name syncfix \u65b0\u5efa\u5de5\u7a0b，\u628a\u7b2c\u4e09\u8282"\u65b9\u6848\u4e00"\u7684\u5b8c\u6574\u4ee3\u7801\u8d34\u8fdb src\/main.cj，\u70b9\u8fd0\u884c，\u7136\u540e\u8fde\u6309\u4e09\u6b21\u8fd0\u884c：<\/p>\n
\u671f\u671b 100000，\u5b9e\u9645 100000<\/p>\n
\u671f\u671b 100000，\u5b9e\u9645 100000<\/p>\n
\u671f\u671b 100000，\u5b9e\u9645 100000<\/p>\n
\u4e09\u6b21\u4e00\u6a21\u4e00\u6837\u3002\u518d\u7ffb\u51fa\u4e0a\u8282\u8bfe\u7b2c 26 \u8bfe\u7b2c\u4e03\u8282\u90a3\u4e2a\u6ca1\u52a0\u9501\u7684 CounterBox \u5bf9\u7167\u7740\u8dd1\u4e09\u6b21\u2014\u201433017\u300133874 \u4e4b\u7c7b\u7684\u4e71\u6570 vs \u4e09\u4e2a 100000，\u8fd9\u5c31\u662f"\u6709\u6ca1\u6709\u540c\u6b65"\u6700\u76f4\u89c2\u7684\u5bf9\u6bd4\u3002<\/p>\n
\u518d\u505a\u4e00\u4e2a\u7834\u574f\u5b9e\u9a8c（\u8bb0\u5f97\u6539\u56de\u6765）：\u628a addOne() \u91cc\u7684 synchronized (lock) { … } \u5220\u6389\u82b1\u62ec\u53f7\u91cc\u7684\u9501\u3001\u53d8\u56de\u88f8 count += 1，\u8fd0\u884c，\u6570\u5b57\u7acb\u523b\u5f00\u59cb\u4e71\u8df3\u3002\u52a0\u9501\u7684\u4ee3\u7801\u54ea\u91cc\u90fd\u6ca1\u574f，\u53bb\u6389\u9501\u624d\u574f\u2014\u2014\u5e76\u53d1 Bug \u4e0d\u4f1a\u5728\u4f60\u5199\u4ee3\u7801\u65f6\u62a5\u9519，\u53ea\u4f1a\u5728\u8fd0\u884c\u7ed3\u679c\u91cc\u6084\u6084\u9519\u3002<\/p>\n
\n\u5341\u3001\u5e38\u7528 API \u901f\u67e5<\/h3>\n
\n
\u529f\u80fd\u5199\u6cd5\u5907\u6ce8<\/tr>\n \n\n \u5bfc\u5165\u540c\u6b65\u5305<\/td>\n import std.sync.*<\/td>\n \u672c\u8bfe\u7c7b\u578b\u5168\u5728 std.sync<\/td>\n<\/tr>\n \n \u4e92\u65a5\u9501<\/td>\n Mutex()<\/td>\n 1.2.0 \u53ef\u91cd\u5165；ReentrantMutex \u5df2\u5e9f\u5f03<\/td>\n<\/tr>\n \n \u540c\u6b65\u5757<\/td>\n synchronized (lock) { … }<\/td>\n \u5757\u7ed3\u675f\u81ea\u52a8\u653e\u9501，\u5f02\u5e38\u4e5f\u653e<\/td>\n<\/tr>\n \n \u624b\u52a8\u52a0\/\u653e\u9501<\/td>\n lock.lock() \/ lock.unlock()<\/td>\n \u5fc5\u987b\u6210\u5bf9，\u4f18\u5148\u7528 synchronized<\/td>\n<\/tr>\n \n \u5c1d\u8bd5\u52a0\u9501<\/td>\n lock.tryLock()<\/td>\n \u8fd4\u56de Bool，\u62ff\u4e0d\u5230\u4e0d\u7b49<\/td>\n<\/tr>\n \n \u521b\u5efa\u6761\u4ef6\u53d8\u91cf<\/td>\n lock.condition()<\/td>\n \u8c03\u7528\u65f6\u5fc5\u987b\u5df2\u6301\u9501，\u7c7b\u578b\u5199 Condition<\/td>\n<\/tr>\n \n \u7b49\u5f85<\/td>\n cond.wait()<\/td>\n \u5fc5\u987b\u5728 synchronized \u91cc，\u4e14\u653e\u5728 while \u4e2d<\/td>\n<\/tr>\n \n \u9650\u65f6\u7b49\u5f85<\/td>\n cond.wait(timeout: Duration.second * 1)<\/td>\n \u901a\u77e5\u8fd4\u56de true，\u8d85\u65f6\u8fd4\u56de false<\/td>\n<\/tr>\n \n \u901a\u77e5<\/td>\n cond.notify() \/ cond.notifyAll()<\/td>\n \u5524\u9192\u4e00\u4e2a \/ \u5168\u90e8\u7b49\u5f85\u8005<\/td>\n<\/tr>\n \n \u539f\u5b50\u6574\u6570<\/td>\n AtomicInt64(0)<\/td>\n \u53e6\u6709 8\/16\/32 \u4f4d\u53ca\u65e0\u7b26\u53f7\u7248\u672c<\/td>\n<\/tr>\n \n \u539f\u5b50\u5e03\u5c14<\/td>\n AtomicBool(false)<\/td>\n load() \/ store() \/ compareAndSwap()<\/td>\n<\/tr>\n \n \u539f\u5b50\u81ea\u589e<\/td>\n a.fetchAdd(1)<\/td>\n \u8fd4\u56de\u65e7\u503c；\u8bfb\u65b0\u503c\u7528 load()<\/td>\n<\/tr>\n \n \u6bd4\u8f83\u4ea4\u6362<\/td>\n a.compareAndSwap(expect, new)<\/td>\n \u76f8\u7b49\u624d\u6362，\u8fd4\u56de\u662f\u5426\u6210\u529f<\/td>\n<\/tr>\n \n \u4fe1\u53f7\u91cf<\/td>\n Semaphore(n)<\/td>\n acquire() \/ tryAcquire() \/ release()<\/td>\n<\/tr>\n \n \u6805\u680f<\/td>\n Barrier(n)<\/td>\n n \u4e2a\u7ebf\u7a0b\u90fd wait() \u540e\u4e00\u8d77\u653e\u884c<\/td>\n<\/tr>\n \n \u8bfb\u5199\u9501<\/td>\n ReadWriteLock()<\/td>\n .readLock.lock()\u3001.writeLock.lock() \u914d\u5bf9 unlock<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\u5341\u4e00\u3001\u5e38\u89c1\u95ee\u9898 FAQ<\/h3>\n
Q1：\u4e3a\u4ec0\u4e48\u7f16\u8bd1\u62a5 error: undeclared identifier 'Mutex'？<\/p>\n
\u6ca1\u5199 import std.sync.*\u3002spawn\u3001sleep \u8fd9\u4e9b\u5728 std.core \u4e0d\u7528\u5bfc，\u4f46\u9501\u3001\u539f\u5b50\u7c7b\u578b\u3001\u4fe1\u53f7\u91cf\u90fd\u5728 std.sync，\u5fc5\u987b\u663e\u5f0f\u5bfc\u5165\u3002<\/p>\n
Q2：synchronized \u5757\u548c\u624b\u52a8 lock\/unlock \u7528\u54ea\u4e2a？<\/p>\n
\u4e00\u5f8b\u7528 synchronized\u3002\u5b83\u5728\u5757\u7ed3\u675f\u65f6（\u5305\u62ec\u5f02\u5e38\u8df3\u51fa\u65f6）\u81ea\u52a8\u653e\u9501，\u4e0d\u4f1a\u5fd8\u8bb0；\u624b\u52a8 unlock \u53ea\u5728\u521b\u5efa\u6761\u4ef6\u53d8\u91cf\u8fd9\u7c7b\u7279\u6b8a\u573a\u666f\u4e0b\u7528\u3002<\/p>\n
Q3：lock.condition() \u4e3a\u4ec0\u4e48\u62a5 IllegalSynchronizationStateException？<\/p>\n
\u6761\u4ef6\u53d8\u91cf\u5fc5\u987b\u7531"\u5f53\u524d\u6b63\u6301\u9501\u7684\u7ebf\u7a0b"\u521b\u5efa\u3002\u7167\u7b2c\u516d\u8282\u7684\u56fa\u5b9a\u5199\u6cd5：\u5148 lock.lock()，\u518d let cond = lock.condition()，\u7136\u540e lock.unlock()，\u4e4b\u540e\u628a cond \u5206\u4eab\u7ed9\u5404\u7ebf\u7a0b\u4f7f\u7528\u3002<\/p>\n
Q4：1.2.0 \u771f\u7684\u6ca1\u6709 Channel \u5417？\u6211\u770b\u7f51\u4e0a\u6587\u7ae0\u90fd\u5728\u7528\u3002<\/p>\n
\u4ee5\u672c\u673a SDK \u5b9e\u6d4b\u4e3a\u51c6：\u5199 Channel<Int64>() \u4f1a\u5f97\u5230 error: undeclared identifier 'Channel'\u30021.2.0 \u7684 std.sync \u53ea\u63d0\u4f9b\u9501\u3001\u6761\u4ef6\u53d8\u91cf\u3001\u539f\u5b50\u7c7b\u578b\u3001\u4fe1\u53f7\u91cf\u3001\u6805\u680f\u3001\u8bfb\u5199\u9501\u7b49\u3002\u7b2c\u4e03\u8282\u5df2\u7ecf\u7528\u8fd9\u4e9b\u539f\u8bed\u5b9e\u73b0\u4e86\u901a\u9053\u6700\u6838\u5fc3\u7684\u963b\u585e\u961f\u5217；\u5b98\u65b9 Channel \u8bf7\u5173\u6ce8\u540e\u7eed SDK \u7248\u672c\u3002<\/p>\n
Q5：\u539f\u5b50\u53d8\u91cf\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u76f4\u63a5\u8bfb\u5199 a.value？<\/p>\n
\u539f\u5b50\u7c7b\u578b\u6ca1\u6709\u516c\u5f00\u7684 value \u5b57\u6bb5（\u62a5 error: can not access field 'value'）\u3002\u8bfb\u7528 load()\u3001\u5199\u7528 store()，\u6240\u6709\u8bbf\u95ee\u90fd\u8d70\u539f\u5b50\u65b9\u6cd5，\u624d\u80fd\u4fdd\u8bc1\u5e76\u53d1\u5b89\u5168\u3002<\/p>\n
Q6：wait() \u4e3a\u4ec0\u4e48\u5fc5\u987b\u5199\u5728 while \u91cc，if \u4e0d\u884c\u5417？<\/p>\n
\u7ebf\u7a0b\u4ece wait() \u9192\u6765\u65f6\u6761\u4ef6\u672a\u5fc5\u4ecd\u6210\u7acb（\u53ef\u80fd\u88ab\u5176\u4ed6\u7ebf\u7a0b\u62a2\u5148\u6539\u53d8，\u6216\u51fa\u73b0\u865a\u5047\u5524\u9192）\u3002while \u4f1a\u5728\u9192\u6765\u540e\u91cd\u65b0\u68c0\u67e5\u4e00\u6b21\u6761\u4ef6，\u4e0d\u6ee1\u8db3\u5c31\u7ee7\u7eed\u7b49；if \u53ea\u68c0\u67e5\u4e00\u6b21，\u9192\u6765\u5c31\u786c\u7740\u5934\u76ae\u5f80\u4e0b\u8d70，\u5bb9\u6613\u51fa\u9519\u3002\u8fd9\u662f\u6761\u4ef6\u53d8\u91cf\u7684\u6807\u51c6\u5199\u6cd5，\u7167\u6284\u5373\u53ef\u3002<\/p>\n
\n\u5341\u4e8c\u3001\u8bfe\u540e\u7ec3\u4e60<\/h3>\n
- （\u5fc5\u505a）\u7528\u9501\u4fdd\u62a4\u4e00\u4e2a"\u5750\u6807\u70b9"：x\u3001y \u4e24\u4e2a\u5b57\u6bb5\u5fc5\u987b\u4e00\u8d77\u79fb\u52a8（\u8fd9\u7c7b\u591a\u5b57\u6bb5\u590d\u5408\u64cd\u4f5c\u539f\u5b50\u7c7b\u578b\u7ba1\u4e0d\u4e86，\u53ea\u80fd\u7528\u9501）\u3002\u628a\u4e0b\u9762\u7a0b\u5e8f\u7684 move \u65b9\u6cd5\u8865\u5b8c\u6574，\u7136\u540e\u8d77 10 \u4e2a\u7ebf\u7a0b\u5404\u8c03\u7528 move(1) 1000 \u6b21\u3002\u9700\u8981 import std.sync.* \u548c import std.collection.ArrayList\u3002\u671f\u671b\u8f93\u51fa：x = 10000，y = 10000\u3002<\/li>\n
class Position {
\n let lock = Mutex()
\n var x: Int64 = 0
\n var y: Int64 = 0<\/p>\nfunc move(step: Int64) {
\n \/\/ TODO：\u7528 synchronized (lock) \u628a x\u3001y \u540c\u65f6\u52a0\u4e0a step
\n }
\n}
\n\/\/ main：10 \u4e2a spawn，\u6bcf\u4e2a\u5faa\u73af 1000 \u6b21\u8c03\u7528 p.move(1)；
\n\/\/ \u5168\u90e8 get() \u540e\u6253\u5370 println("x = ${p.x}，y = ${p.y}")<\/p>\n- （\u5fc5\u505a）\u7528 compareAndSwap \u5b9e\u73b0"\u4e00\u6b21\u6027\u521d\u59cb\u5316"：5 \u4e2a\u7ebf\u7a0b\u540c\u65f6\u53bb\u62a2，\u6700\u591a\u53ea\u80fd\u6709\u4e00\u4e2a\u6210\u529f\u3002\u51fd\u6570\u7b7e\u540d\u5df2\u7ecf\u7ed9\u597d，main \u91cc\u8d77 5 \u4e2a\u7ebf\u7a0b（\u8fdb\u5165\u540e\u5148 sleep(Duration.millisecond * 100) \u8ba9\u5927\u5bb6\u5c3d\u91cf\u540c\u65f6），\u628a\u6bcf\u4e2a Future<Bool> \u7684\u7ed3\u679c\u5728\u4e3b\u7ebf\u7a0b get() \u56de\u6765\u6570 true \u7684\u4e2a\u6570\u3002\u671f\u671b\u8f93\u51fa：\u6210\u529f\u521d\u59cb\u5316\u7684\u7ebf\u7a0b\u6570：1\u3002<\/li>\n
import std.sync.*
\n\/\/ func tryInit(flag: AtomicInt64): Bool { return flag.compareAndSwap(0, 1) }
\n\/\/ \u63d0\u793a：main \u91cc let flag = AtomicInt64(0)，\u628a flag \u4f20\u8fdb\u6bcf\u4e2a spawn<\/p>\n- （\u5fc5\u505a）\u201c\u5f00\u95e8\u4ee4\u201d：\u5de5\u4f5c\u7ebf\u7a0b\u5148\u6253\u5370 \u7b49\u5f85\u5f00\u95e8，\u7136\u540e\u5728\u6761\u4ef6\u53d8\u91cf\u4e0a\u7b49\u5f85；\u4e3b\u7ebf\u7a0b\u7761 200 \u6beb\u79d2\u540e\u6253\u5370 \u5f00\u95e8 \u5e76\u901a\u77e5\u5b83；\u5de5\u4f5c\u7ebf\u7a0b\u88ab\u5524\u9192\u540e\u6253\u5370 \u5f00\u59cb\u5e72\u6d3b\u3002\u8bf7\u8865\u5168\u4e0b\u9762\u9aa8\u67b6\u4e2d\u7684\u4e09\u5904 TODO（\u63d0\u793a：\u521b\u5efa\u6761\u4ef6\u53d8\u91cf\u7684\u56fa\u5b9a\u5199\u6cd5\u89c1\u7b2c\u516d\u8282，\u7b49\u5f85\u548c\u901a\u77e5\u90fd\u8981\u5305\u5728 synchronized (lock) \u91cc）\u3002\u671f\u671b\u8f93\u51fa\u4e25\u683c\u6309\u4e0b\u9762\u4e09\u884c\u987a\u5e8f\u51fa\u73b0：<\/li>\n
\u7b49\u5f85\u5f00\u95e8
\n\u5f00\u95e8
\n\u5f00\u59cb\u5e72\u6d3b<\/p>\nlet lock = Mutex()
\n\/\/ TODO：lock.lock() \u2192 let cond = lock.condition() \u2192 lock.unlock()
\nlet worker = spawn {
\n synchronized (lock) {
\n println("\u7b49\u5f85\u5f00\u95e8")
\n \/\/ TODO：cond.wait()
\n println("\u5f00\u59cb\u5e72\u6d3b")
\n }
\n}
\nsleep(Duration.millisecond * 200)
\nsynchronized (lock) {
\n println("\u5f00\u95e8")
\n \/\/ TODO：cond.notify()
\n}
\nworker.get()<\/p>\n- （\u9009\u505a）\u7528 Semaphore(2) \u6a21\u62df"\u53ea\u6709 2 \u4e2a\u4f4d\u7684\u66f4\u8863\u5ba4"：6 \u4e2a\u4eba（\u7ebf\u7a0b）\u8fdb\u573a，\u6bcf\u4eba\u8fdb\u53bb\u540e\u505c\u7559 sleep(Duration.millisecond * 100) \u518d\u51fa\u6765\u3002\u7528\u4e00\u4e2a\u5e26 Mutex \u7684\u88c5\u7bb1\u7c7b\u7edf\u8ba1"\u540c\u65f6\u5728\u573a\u4eba\u6570"\u7684\u5cf0\u503c（\u6ce8\u610f：\u8ba1\u6570\u53d8\u91cf\u662f var，\u4e0d\u80fd\u76f4\u63a5\u88ab spawn \u6355\u83b7，\u8981\u50cf\u7b2c 26 \u8bfe\u90a3\u6837\u88c5\u8fdb class）\u3002\u671f\u671b\u8f93\u51fa：\u540c\u65f6\u5728\u66f4\u8863\u5ba4\u7684\u5cf0\u503c\u4eba\u6570：2\u3002<\/li>\n
\n\u4e0b\u8282\u9884\u544a<\/h3>\n
\u672c\u8bfe\u628a"\u7ebf\u7a0b\u4e4b\u95f4\u5982\u4f55\u5b89\u5168\u5730\u534f\u4f5c"\u8bb2\u5b8c\u4e86：\u9501\u9632\u62a2\u3001\u539f\u5b50\u7c7b\u578b\u9632\u4e22\u6570\u3001\u6761\u4ef6\u53d8\u91cf\u9632\u5fd9\u7b49\u3001\u963b\u585e\u961f\u5217\u8d1f\u8d23\u4f20\u8bdd\u3002\u7b2c 28 \u8bfe \u5e76\u53d1\u5b9e\u6218：\u591a\u7ebf\u7a0b\u4efb\u52a1\u5904\u7406 \u628a\u8fd9\u4e9b\u5bb6\u4f19\u62c9\u5230\u771f\u6b63\u7684\u4e1a\u52a1\u573a\u666f\u91cc\u905b\u4e00\u905b：\u4e00\u6279\u4efb\u52a1\u600e\u4e48\u6d3e\u7ed9\u591a\u4e2a\u5de5\u4f5c\u7ebf\u7a0b\u5e76\u53d1\u5904\u7406\u3001\u5904\u7406\u7ed3\u679c\u600e\u4e48\u6309\u987a\u5e8f\u56de\u6536\u3001\u751f\u4ea7\u8fc7\u5feb\u6d88\u8d39\u8fc7\u6162\u65f6\u600e\u4e48\u7528\u963b\u585e\u961f\u5217\u524a\u5cf0\u586b\u8c37\u3002\u4e09\u8282\u8bfe\u7684\u5e76\u53d1\u77e5\u8bc6\u4f1a\u5728\u90a3\u4e00\u8bfe\u4e32\u6210\u4e00\u6761\u7ebf\u3002<\/p>\n
\n\u7cfb\u5217\u8bf4\u660e：\u672c\u7cfb\u5217\u57fa\u4e8e Windows \u5e73\u53f0 + CIDE + \u4ed3\u9889 SDK（1.2.0）\u7f16\u5199，\u6240\u6709\u4ee3\u7801\u5747\u5df2\u5b9e\u9645\u7f16\u8bd1\u8fd0\u884c\u901a\u8fc7\u3002\u5982\u9047 SDK \u7248\u672c\u5dee\u5f02\u5bfc\u81f4\u7684\u7ec6\u8282\u51fa\u5165，\u4ee5\u4f60\u672c\u5730\u7248\u672c\u4e3a\u51c6，\u6b22\u8fce\u8bc4\u8bba\u533a\u4ea4\u6d41\u3002<\/p>\n
\n💬 \u9047\u5230\u95ee\u9898？\u626b\u7801\u8054\u7cfb\u4f5c\u8005<\/h3>\n
\u8ddf\u7740\u8bfe\u7a0b\u7ec3\u4e60\u65f6，\u5982\u679c\u5728 SDK \u5b89\u88c5\u3001\u73af\u5883\u53d8\u91cf\u914d\u7f6e\u3001\u7f16\u8bd1\u62a5\u9519\u6216\u8c03\u8bd5\u4e0a\u5361\u4f4f，\u6b22\u8fce\u626b\u7801\u52a0\u4f5c\u8005\u4f01\u4e1a\u5fae\u4fe1\u76f4\u63a5\u54a8\u8be2（\u8bf7\u5907\u6ce8"\u4ed3\u9889\u8bfe\u7a0b"）：
![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261006034101-6ac46dcdce649.png\")
<\/p>\n\u79bb\u7ebf\u73af\u5883\u4e0b\u56fe\u7247\u53ef\u80fd\u52a0\u8f7d\u4e0d\u51fa\u6765，\u4e5f\u53ef\u4ee5\u5728 CIDE \u83dc\u5355 Help \u25b8 \u8054\u7cfb\u4f5c\u8005 \/ Contact \u4e2d\u67e5\u770b\u540c\u4e00\u5f20\u4e8c\u7ef4\u7801（\u5e94\u7528\u5185\u7f6e\u515c\u5e95\u56fe，\u65e0\u9700\u8054\u7f51）\u3002<\/p>\n
\n📥 \u5de5\u5177\u4e0b\u8f7d<\/h3>\n
\u672c\u7cfb\u5217\u5168\u7a0b\u4f7f\u7528\u7684\u4ed3\u9889 IDE \u2014\u2014 CIDE（\u514d\u8d39\u5f00\u6e90\u3001\u793e\u533a\u7248）：<\/p>\n
- \n
- GitCode \u4ed3\u5e93 \/ \u5b89\u88c5\u5305\u4e0b\u8f7d：https:\/\/gitcode.com\/wp_upala\/cide<\/li>\n
- \u6253\u5f00\u9875\u9762\u540e\u8fdb\u5165 \u53d1\u884c\u7248（Releases），\u4e24\u79cd\u5305\u4efb\u9009\u5176\u4e00：\n
- \n
- \u5b89\u88c5\u7248：\u4e0b\u8f7d CIDE-<\u7248\u672c>-x64-Setup.exe，\u53cc\u51fb\u5b89\u88c5，\u9002\u5408\u65e5\u5e38\u957f\u671f\u4f7f\u7528；<\/li>\n
- \u514d\u5b89\u88c5\u7248（Portable）：\u4e0b\u8f7d CIDE-<\u7248\u672c>-x64-Portable.zip，\u89e3\u538b\u5230\u4efb\u610f\u76ee\u5f55\u5373\u7528，\u4e0d\u5199\u6ce8\u518c\u8868\u3001\u4e0d\u7559\u5b89\u88c5\u75d5\u8ff9，\u62f7\u5230 U \u76d8\u4e5f\u80fd\u5728\u522b\u7684\u7535\u8111\u76f4\u63a5\u8fd0\u884c（\u5305\u5185\u9644\u300a\u4f7f\u7528\u8bf4\u660e.txt\u300b）\u3002\u9002\u5408\u5148\u8bd5\u7528\u3001\u6216\u5728\u53d7\u9650\u7535\u8111\u4e0a\u5b66\u4e60\u672c\u7cfb\u5217\u8bfe\u7a0b\u3002<\/li>\n<\/ul>\n<\/li>\n
- \u4ed3\u9889 SDK \u8bf7\u524d\u5f80\u4ed3\u9889\u7f16\u7a0b\u8bed\u8a00\u5b98\u7f51\u4e0b\u8f7d：https:\/\/cangjie-lang.cn<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
\u7b2c 27 \u8bfe \u7ebf\u7a0b\u540c\u6b65：\u4e92\u65a5\u9501\u3001\u539f\u5b50\u7c7b\u578b\u4e0e\u6761\u4ef6\u53d8\u91cf \u4e0a\u8282\u8bfe\u7ed3\u5c3e\u7684 CounterBox \u60e8\u6848\u8fd8\u60ac\u7740：10 \u4e2a\u7ebf\u7a0b\u5404\u52a0 10000 \u6b21，\u671f\u671b 100000，\u5b9e\u9645\u53ea\u6709 33017\u300133874\u2026\u2026\u6bcf\u6b21\u8dd1\u6570\u5b57\u8fd8\u90fd\u4e0d\u4e00\u6837\u3002\u672c\u8bfe\u5c31\u6765\u7b97\u8d26：\u7528 Mutex \u4e92\u65a5\u9501\u628a\\”\u8bfb\u2014\u52a0\u2014\u5199\\”\u4e09\u6b65\u5408\u6210\u4e00\u6b65，\u7528 Atomic \u539f\u5b50\u7c7b\u578b\u8ba9\u81ea\u589e\u672c\u8eab\u4e0d\u53ef\u5206\u5272，\u518d\u7528 Condition \u6761\u4ef6\u53d8\u91cf\u89e3\u51b3\\”\u7ebf\u7a0b\u4e4b\u95f4\u4f60\u7b49\u6211\u3001\u6211<\/p>\n","protected":false},"author":2,"featured_media":113438,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[70,190,227],"topic":[],"class_list":["post-113439","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-ide","tag-190","tag-227"],"yoast_head":"\n
\u3010\u4ed3\u9889\u8bed\u8a00\u5165\u95e8 \u00b7 \u7b2c27\u8bfe\u3011 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/113439.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010\u4ed3\u9889\u8bed\u8a00\u5165\u95e8 \u00b7 \u7b2c27\u8bfe\u3011 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u7b2c 27 \u8bfe \u7ebf\u7a0b\u540c\u6b65：\u4e92\u65a5\u9501\u3001\u539f\u5b50\u7c7b\u578b\u4e0e\u6761\u4ef6\u53d8\u91cf \u4e0a\u8282\u8bfe\u7ed3\u5c3e\u7684 CounterBox \u60e8\u6848\u8fd8\u60ac\u7740：10 \u4e2a\u7ebf\u7a0b\u5404\u52a0 10000 \u6b21，\u671f\u671b 100000，\u5b9e\u9645\u53ea\u6709 33017\u300133874\u2026\u2026\u6bcf\u6b21\u8dd1\u6570\u5b57\u8fd8\u90fd\u4e0d\u4e00\u6837\u3002\u672c\u8bfe\u5c31\u6765\u7b97\u8d26：\u7528 Mutex \u4e92\u65a5\u9501\u628a"\u8bfb\u2014\u52a0\u2014\u5199"\u4e09\u6b65\u5408\u6210\u4e00\u6b65，\u7528 Atomic \u539f\u5b50\u7c7b\u578b\u8ba9\u81ea\u589e\u672c\u8eab\u4e0d\u53ef\u5206\u5272，\u518d\u7528 Condition \u6761\u4ef6\u53d8\u91cf\u89e3\u51b3"\u7ebf\u7a0b\u4e4b\u95f4\u4f60\u7b49\u6211\u3001\u6211\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/113439.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-06T03:41:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261006034101-6ac46dcdce649.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/113439.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/113439.html\",\"name\":\"\u3010\u4ed3\u9889\u8bed\u8a00\u5165\u95e8 \u00b7 \u7b2c27\u8bfe\u3011 - 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- （\u5fc5\u505a）\u7528\u9501\u4fdd\u62a4\u4e00\u4e2a"\u5750\u6807\u70b9"：x\u3001y \u4e24\u4e2a\u5b57\u6bb5\u5fc5\u987b\u4e00\u8d77\u79fb\u52a8（\u8fd9\u7c7b\u591a\u5b57\u6bb5\u590d\u5408\u64cd\u4f5c\u539f\u5b50\u7c7b\u578b\u7ba1\u4e0d\u4e86，\u53ea\u80fd\u7528\u9501）\u3002\u628a\u4e0b\u9762\u7a0b\u5e8f\u7684 move \u65b9\u6cd5\u8865\u5b8c\u6574，\u7136\u540e\u8d77 10 \u4e2a\u7ebf\u7a0b\u5404\u8c03\u7528 move(1) 1000 \u6b21\u3002\u9700\u8981 import std.sync.* \u548c import std.collection.ArrayList\u3002\u671f\u671b\u8f93\u51fa：x = 10000，y = 10000\u3002<\/li>\n