\u8bf7\u8bbe\u8ba1\u4fee\u6539\u7a0b\u5e8f，\u4ee5\u786e\u4fdd\u00a0second()\u00a0\u65b9\u6cd5\u5728\u00a0first()\u00a0\u65b9\u6cd5\u4e4b\u540e\u88ab\u6267\u884c，third()\u00a0\u65b9\u6cd5\u5728\u00a0second()\u00a0\u65b9\u6cd5\u4e4b\u540e\u88ab\u6267\u884c\u3002<\/p>\n
\u63d0\u793a：<\/p>\n
- \n
- \u5c3d\u7ba1\u8f93\u5165\u4e2d\u7684\u6570\u5b57\u4f3c\u4e4e\u6697\u793a\u4e86\u987a\u5e8f，\u4f46\u662f\u6211\u4eec\u5e76\u4e0d\u4fdd\u8bc1\u7ebf\u7a0b\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u8c03\u5ea6\u987a\u5e8f\u3002<\/li>\n
- \u4f60\u770b\u5230\u7684\u8f93\u5165\u683c\u5f0f\u4e3b\u8981\u662f\u4e3a\u4e86\u786e\u4fdd\u6d4b\u8bd5\u7684\u5168\u9762\u6027\u3002<\/li>\n<\/ul>\n
\u793a\u4f8b 1：<\/p>\n
\u8f93\u5165：nums = [1,2,3]
\n\u8f93\u51fa："firstsecondthird"
\n\u89e3\u91ca：
\n\u6709\u4e09\u4e2a\u7ebf\u7a0b\u4f1a\u88ab\u5f02\u6b65\u542f\u52a8\u3002\u8f93\u5165 [1,2,3] \u8868\u793a\u7ebf\u7a0b A \u5c06\u4f1a\u8c03\u7528 first() \u65b9\u6cd5，\u7ebf\u7a0b B \u5c06\u4f1a\u8c03\u7528 second() \u65b9\u6cd5，\u7ebf\u7a0b C \u5c06\u4f1a\u8c03\u7528 third() \u65b9\u6cd5\u3002\u6b63\u786e\u7684\u8f93\u51fa\u662f "firstsecondthird"\u3002<\/p>\n\u793a\u4f8b 2：<\/p>\n
\u8f93\u5165：nums = [1,3,2]
\n\u8f93\u51fa："firstsecondthird"
\n\u89e3\u91ca：
\n\u8f93\u5165 [1,3,2] \u8868\u793a\u7ebf\u7a0b A \u5c06\u4f1a\u8c03\u7528 first() \u65b9\u6cd5，\u7ebf\u7a0b B \u5c06\u4f1a\u8c03\u7528 third() \u65b9\u6cd5，\u7ebf\u7a0b C \u5c06\u4f1a\u8c03\u7528 second() \u65b9\u6cd5\u3002\u6b63\u786e\u7684\u8f93\u51fa\u662f "firstsecondthird"\u3002 <\/p>\n- <\/ul>\n
- nums\u00a0\u662f\u00a0[1, 2, 3]\u00a0\u7684\u4e00\u7ec4\u6392\u5217<\/li>\n<\/ul>\n
\u7b54\u6848&\u6d4b\u8bd5\u4ee3\u7801：<\/p>\n
\u00a0<\/p>\n
#include <iostream>
\n#include "listNode.h"
\n#include "solution.h"
\n#include <algorithm>
\n#include <unordered_set>
\n#include <unordered_map>
\n#include <map>
\n#include <string>
\n#include <stdio.h>
\n#include <stdlib.h>
\n#include "solution3.h"
\n#include "dataDefine.h"
\n#include "uthash.h"
\n#include "IntArrayList.h"
\n#include <string.h>
\n#include <thread>
\n#include <atomic>
\n#include "DemoClass.h"
\n#include <mutex>
\n#include <condition_variable>
\n#include <functional><\/p>\nvoid printFirst() {
\nstd::cout << "first";
\n}<\/p>\nvoid printSecond() {
\nstd::cout << "second";
\n}<\/p>\nvoid printThird() {
\nstd::cout << "third";
\n}<\/p>\nvoid testLeeCode1114_() {
\nclass Foo { \/\/ \u51fd\u6570\u5185\u90e8\u4e5f\u53ef\u4ee5\u5b9a\u4e49\u7c7b\u3002
\nprivate:
\nstd::mutex mtx; \/\/ \u4e92\u65a5\u9501
\nstd::condition_variable cv; \/\/ \u6761\u4ef6\u53d8\u91cf
\nbool isFirstDone;
\nbool isSecondDone;
\npublic:
\nFoo() {
\nthis->isFirstDone = false;
\nthis->isSecondDone = false;
\n}<\/p>\nvoid first(function<void()> printFirst) {
\n{ \/\/ \u52a0\u4e00\u5bf9{}\u662f\u4e3a\u4e86\u9650\u5236\u4e0b\u9762\u52a0\u9501\u7684\u4f5c\u7528\u57df\u3002\u79bb\u5f00\u4f5c\u7528\u57dflock_guard\u81ea\u52a8\u7acb\u5373\u91ca\u653e\u9501
\n\/\/ lock_guard\u6784\u9020\u65f6\u7acb\u5373\u52a0\u9501（\u5982\u679c\u9501\u88ab\u5360\u7528\u4f1a\u7b49\u5f85\u9501\u91ca\u653e，\u4e00\u65e6\u9501\u91ca\u653e\u5c31\u62a2\u5360）\u3002\u4e0d\u652f\u6301\u624b\u52a8\u91ca\u653e\u9501\u3002lock_guard \u5728\u6790\u6784\u65f6\u4f1a\u81ea\u52a8\u91ca\u653e\u9501\u3002
\nstd::lock_guard<std::mutex> lock(mtx);
\n\/\/ printFirst() outputs "first". Do not change or remove this line.
\nprintFirst();
\nthis->isFirstDone = true;
\n}
\ncv.notify_all(); \/\/ \u5524\u9192\u6240\u6709\u7b49\u5f85\u9501\u7684\u7ebf\u7a0b
\n}<\/p>\nvoid second(function<void()> printSecond) {
\n\/\/ \u7acb\u5373\u52a0\u9501，\u540clock_guard， \u4f46\u662funique_lock\u6bd4\u8f83\u7075\u6d3b，\u8fd8\u652f\u6301\u5ef6\u8fdf\u52a0\u9501\u3002\u652f\u6301\u624b\u52a8\u52a0\u9501\u3001\u91ca\u653e\u9501\u3002\u9700\u8981\u624b\u52a8\u7ba1\u7406\u3002
\nstd::unique_lock<std::mutex> lock(mtx);<\/p>\n\/\/ \u5224\u65ad\u662f\u5426\u6ee1\u8db3\u6267\u884c\u6761\u4ef6\u3002\u5982\u679c\u4e0d\u6ee1\u8db3\u5c31\u8c03\u7528wait\u51fd\u6570\u91ca\u653e\u9501，\u8be5\u7ebf\u7a0b\u963b\u585e\u5728\u8fd9\u91cc\u7b49\u5f85\u88ab\u5524\u9192； \u82e5\u6ee1\u8db3\u6267\u884c\u6761\u4ef6\u5219\u7ee7\u7eed\u4e0b\u9762\u7684\u4ee3\u7801\u903b\u8f91\u3002
\n\/\/ \u88ab\u5524\u9192\u4f1a\u5224\u65ad\u662f\u5426\u6ee1\u8db3\u6267\u884c\u6761\u4ef6，\u4e14\u6ee1\u8db3\u6761\u4ef6\u5219\u83b7\u53d6\u9501，\u7136\u540e\u7ee7\u7eed\u4e0b\u9762\u7684\u4ee3\u7801\u903b\u8f91\u3002\u4e0d\u6ee1\u8db3\u6761\u4ef6\u5219\u7ee7\u7eed\u7b49\u5f85\u3002
\ncv.wait(lock, [this](){return this->isFirstDone;}); \/\/ \u8fd9\u91cc\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u4e00\u4e2alambda\u8868\u8fbe\u5f0f，\u8868\u793a\u4e00\u4e2a\u533f\u540d\u51fd\u6570，\u8be5\u51fd\u6570\u6355\u83b7this\u6307\u9488（\u51fd\u6570\u4f53\u4e2d\u7528\u5230\u8be5\u6307\u9488），\u6ca1\u6709\u53c2\u6570\u3002<\/p>\n\/\/ printSecond() outputs "second". Do not change or remove this line.
\nprintSecond();<\/p>\nthis->isSecondDone = true;<\/p>\n
lock.unlock(); \/\/ \u4e0d\u8981\u5fd8\u8bb0\u91ca\u653e\u9501\u3002\u56e0\u4e3a\u7ebf\u7a0b\u88ab\u5524\u9192\u540e\u9700\u8981\u83b7\u53d6\u9501\u8d44\u6e90\u624d\u4f1a\u6267\u884c\u5230\u8fd9\u91cc，\u6240\u4ee5\u5fc5\u987b\u518d\u91ca\u653e，\u4e0d\u80fd\u56e0\u4e3a\u4e0a\u9762wait\u51fd\u6570\u91ca\u653e\u9501\u4e86\u5c31\u4e0d\u8c03\u7528\u91ca\u653e\u4e86\u3002<\/p>\n
cv.notify_all(); \/\/ \u9700\u8981\u901a\u77e5\u5176\u4ed6\u7ebf\u7a0b, \u8fd9\u91cc\u4e5f\u53ef\u4ee5\u8c03\u7528notify_one， \u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u5728\u7b49\u5f85\u4e86\u3002
\n}<\/p>\nvoid third(function<void()> printThird) {
\nstd::unique_lock<std::mutex> lock(mtx);
\ncv.wait(lock, [this]() {return this->isSecondDone;});
\n\/\/ printThird() outputs "third". Do not change or remove this line.
\nprintThird();
\nlock.unlock();
\n}
\n};<\/p>\nFoo foo; \/\/ \u4e3b\u7ebf\u7a0b\u751f\u6210Foo\u5bf9\u8c61\u3002
\n \/\/ \u56e0\u4e3a\u7ebf\u7a0b\u8981\u6267\u884c\u5bf9\u8c61\u91cc\u7684\u6210\u5458\u51fd\u6570，\u6240\u4ee5\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u51fd\u6570\u6307\u9488， \u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8be5\u5bf9\u8c61，\u540e\u9762\u7684\u53c2\u6570\u662f\u8be5\u6210\u5458\u51fd\u6570\u7684\u4f20\u53c2，\u8fd9\u91cc\u4f20\u9012\u7684\u51fd\u6570
\nstd::thread t1(&Foo::first, &foo, printFirst);
\nstd::thread t3(&Foo::third, &foo, printThird);
\nstd::thread t2(&Foo::second, &foo, printSecond);<\/p>\nt1.join();
\nt2.join();
\nt3.join();
\nstd::cout << endl << "finish" << endl;
\n} <\/p>\n\u6267\u884c\u7ed3\u679c：<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250424121800-680a2bf81b803.png\")
<\/p>\nok！<\/p>\n
\u63d0\u4ea4\u5230LeeCode：<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250424121800-680a2bf86414f.png\")
<\/p>\nok！ \u6ca1\u95ee\u9898\u3002<\/p>\n<\/p>\n
\u53cd\u9762\u6559\u6750：<\/p>\n
void testLeeCode1114() { \/\/ LeeCode1114.\u6309\u5e8f\u6253\u5370. \u53cd\u9762\u6559\u6750，\u4e3b\u7ebf\u7a0b\u52a0\u9501，\u5b50\u7ebf\u7a0b\u89e3\u9501，\u62a5\u9519：unlock of unowned mutex \u3002
\nclass Foo {
\nmutex mtx_1, mtx_2;
\nunique_lock<mutex> lock_1, lock_2;
\npublic:
\nFoo() : lock_1(mtx_1, try_to_lock), lock_2(mtx_2, try_to_lock) {
\n}<\/p>\nvoid first(function<void()> printFirst) {
\nprintFirst();
\nlock_1.unlock();
\n}<\/p>\nvoid second(function<void()> printSecond) {
\nlock_guard<mutex> guard(mtx_1);
\nprintSecond();
\nlock_2.unlock();
\n}<\/p>\nvoid third(function<void()> printThird) {
\nlock_guard<mutex> guard(mtx_2);
\nprintThird();
\n}
\n};<\/p>\nFoo foo; \/\/ \u4e3b\u7ebf\u7a0b\u751f\u6210Foo\u5bf9\u8c61\u3002
\nstd::thread t1(&Foo::first, &foo, printFirst); \/\/ \u56e0\u4e3a\u662f\u7ebf\u7a0b\u8981\u6267\u884c\u5bf9\u8c61\u91cc\u7684\u6210\u5458\u51fd\u6570，\u6240\u4ee5\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u51fd\u6570\u6307\u9488， \u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8be5\u5bf9\u8c61，\u540e\u9762\u7684\u53c2\u6570\u662f\u8be5\u6210\u5458\u51fd\u6570\u7684\u4f20\u53c2，\u8fd9\u91cc\u4f20\u9012\u7684\u51fd\u6570
\nstd::thread t3(&Foo::third, &foo, printThird);
\nstd::thread t2(&Foo::second, &foo, printSecond);<\/p>\n\/\/ \u4e3b\u7ebf\u7a0b\u7b49\u8fd93\u4e2a\u7ebf\u7a0b\u6267\u884c\u7ed3\u675f：
\nt1.join();
\nt2.join();
\nt3.join();<\/p>\n\/\/ \u62a5\u9519： unlock of unowned mutex
\n} <\/p>\n\u00a0\u62a5\u9519：unlock of unowned mutex \u3002\u00a0<\/p>\n
\u95ee\u9898\u5c31\u5728\u4e8e\u4e3b\u7ebf\u7a0b\u52a0\u9501， \u7136\u540e\u5b50\u7ebf\u7a0b\u89e3\u9501\u3002\u6240\u4ee5\u62a5\u9519\u3002\u7ebf\u7a0b\u5fc5\u987b\u5148\u5360\u6709\u9501\u8d44\u6e90\u624d\u80fd\u89e3\u9501\u3002<\/p>\n<\/p>\n
\u603b\u7ed3： \u4e92\u65a5\u9501\u5c31\u7c7b\u6bd4\u4e00\u4e2a\u5355\u4eba\u7528\u7684\u536b\u751f\u95f4\u3002\u4e00\u4e2a\u4eba（\u7ebf\u7a0b）\u8fdb\u53bb\u4e86\u4f1a\u628a\u536b\u751f\u95f4\u9501\u4f4f（\u52a0\u9501）， \u6b64\u65f6\u5176\u4ed6\u4eba（\u7ebf\u7a0b）\u60f3\u8fdb\u53bb\u53ea\u80fd\u7b49\u5f85\u9501\u91ca\u653e\u3002<\/p>\n
\u5982\u679c\u4e00\u4e2a\u4eba\u8fdb\u53bb\u536b\u751f\u95f4\u540e\u53d1\u73b0\u4e0d\u6ee1\u8db3\u529e\u4e8b\u6761\u4ef6，\u6bd4\u5982\u6ca1\u5e26\u7eb8（\u5982\u793a\u4f8b\u4ee3\u7801\u4e2d\u5224\u65ad\u4e0d\u6ee1\u8db3\u6267\u884c\u6761\u4ef6），\u6b64\u65f6\u51fa\u53bb\u7b49\u5f85（\u5982\u793a\u4f8b\u4ee3\u7801\u7684wait\u51fd\u6570\u91ca\u653e\u9501），\u522b\u4eba\u8fdb\u53bb\u536b\u751f\u95f4\u5b8c\u4e8b\u540e\u51fa\u6765\u901a\u77e5\u8bf4\u4ed6\u7528\u5b8c\u4e86，\u7136\u540e\u521a\u624d\u51fa\u53bb\u7b49\u5f85\u7684\u90a3\u4e2a\u4eba\u518d\u6b21\u7ade\u4e89\u5230\u536b\u751f\u95f4\u8fdb\u53bb\u4e86， \u7136\u540e\u4f1a\u518d\u6b21\u68c0\u67e5\u6761\u4ef6\u662f\u5426\u6ee1\u8db3（\u5982\u4ee3\u7801\u4e2d\u7684\u6761\u4ef6\u5224\u65ad），\u53d1\u73b0\u536b\u751f\u95f4\u6709\u7eb8\u4e86，ok\u53ef\u4ee5\u65b9\u4fbf\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb338\u6b21\uff0c\u70b9\u8d5e3\u6b21\uff0c\u6536\u85cf5\u6b21\u3002\u5982\u679c\u4e00\u4e2a\u4eba\u8fdb\u53bb\u536b\u751f\u95f4\u540e\u53d1\u73b0\u4e0d\u6ee1\u8db3\u529e\u4e8b\u6761\u4ef6\uff0c\u6bd4\u5982\u6ca1\u5e26\u7eb8\uff08\u5982\u793a\u4f8b\u4ee3\u7801\u4e2d\u5224\u65ad\u4e0d\u6ee1\u8db3\u6267\u884c\u6761\u4ef6\uff09\uff0c\u6b64\u65f6\u51fa\u53bb\u7b49\u5f85\uff08\u5982\u793a\u4f8b\u4ee3\u7801\u7684wait\u51fd\u6570\u91ca\u653e\u9501\uff09\uff0c\u522b\u4eba\u8fdb\u53bb\u536b\u751f\u95f4\u5b8c\u4e8b\u540e\u51fa\u6765\u901a\u77e5\u8bf4\u4ed6\u7528\u5b8c\u4e86\uff0c\u7136\u540e\u521a\u624d\u51fa\u53bb\u7b49\u5f85\u7684\u90a3\u4e2a\u4eba\u518d\u6b21\u7ade\u4e89\u5230\u536b\u751f\u95f4\u8fdb\u53bb\u4e86\uff0c \u7136\u540e\u4f1a\u518d\u6b21\u68c0\u67e5\u6761\u4ef6\u662f\u5426\u6ee1\u8db3\uff08\u5982\u4ee3\u7801\u4e2d\u7684\u6761\u4ef6\u5224\u65ad\uff09\uff0c\u53d1\u73b0\u536b\u751f\u95f4\u6709\u7eb8\u4e86\uff0cok\u53ef\u4ee5\u65b9\u4fbf\u4e86\u3002\u8f93\u5165 [1,2,3] \u8868\u793a\u7ebf\u7a0b A \u5c06\u4f1a\u8c03\u7528 first() \u65b9\u6cd5\uff0c\u7ebf\u7a0b B \u5c06\u4f1a\u8c03\u7528 second() \u65b9\u6cd5\uff0c\u7ebf\u7a0b C \u5c06\u4f1a\u8c03\u7528 third() \u65b9\u6cd5\u3002\u603b\u7ed3\uff1a \u4e92\u65a5\u9501\u5c31\u7c7b\u6bd4\u4e00\u4e2a\u5355\u4eba\u7528\u7684\u536b\u751f\u95f4\u3002<\/p>\n","protected":false},"author":2,"featured_media":32594,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1054,55,2651,427],"topic":[],"class_list":["post-32596","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c-c","tag-c","tag-leecode","tag-427"],"yoast_head":"\n
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\u63d0\u793a：<\/p>\n
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