{"id":108626,"date":"2026-09-22T09:08:40","date_gmt":"2026-09-22T01:08:40","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/108626.html"},"modified":"2026-09-22T09:08:40","modified_gmt":"2026-09-22T01:08:40","slug":"system-v-ipc%ef%bc%9ashmid-%e4%b8%8e-semid-%e5%85%a8%e7%a7%b0%e4%b8%8e%e5%91%bd%e5%90%8d%e8%a7%84%e5%be%8b","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/108626.html","title":{"rendered":"System V IPC\uff1ashmid \u4e0e semid \u5168\u79f0\u4e0e\u547d\u540d\u89c4\u5f8b"},"content":{"rendered":"<p>\u5728 Linux System V \u8fdb\u7a0b\u901a\u4fe1\u673a\u5236\u4e2d&#xff0c;\u5171\u4eab\u5185\u5b58\u3001\u4fe1\u53f7\u91cf\u3001\u6d88\u606f\u961f\u5217\u662f\u4e09\u5927\u6838\u5fc3 IPC \u8d44\u6e90&#xff0c;\u5185\u6838\u4f1a\u4e3a\u6bcf\u4e00\u4e2a\u521b\u5efa\u7684 IPC \u8d44\u6e90\u5206\u914d\u552f\u4e00\u6807\u8bc6\u7b26&#xff0c;\u4e5f\u5c31\u662f\u6211\u4eec\u4ee3\u7801\u4e2d\u5e38\u89c1\u7684 shmid\u3001semid\u3001msqid\u3002\u4e09\u8005\u547d\u540d\u683c\u5f0f\u9ad8\u5ea6\u7edf\u4e00&#xff0c;\u4ec5\u524d\u7f00\u4e0d\u540c&#xff0c;\u672c\u6587\u6e05\u6670\u62c6\u89e3\u5176\u82f1\u6587\u5168\u79f0\u3001\u542b\u4e49\u53ca\u547d\u540d\u89c4\u5219&#xff0c;\u65b9\u4fbf\u5feb\u901f\u8bb0\u5fc6\u4e0e\u533a\u5206\u3002<\/p>\n<h3>\u4e00\u3001shmid&#xff08;\u5171\u4eab\u5185\u5b58\u6807\u8bc6\u7b26&#xff09;<\/h3>\n<p>\u5b8c\u6574\u82f1\u6587\u5168\u79f0&#xff1a;<span style=\"color:#fe2c24\">shared memory<\/span> identifier<\/p>\n<p>\u7f29\u5199\u62c6\u89e3&#xff1a;<\/p>\n<ul>\n<li>\n<p>shm&#xff1a;\u53d6\u81ea shared memory&#xff0c;\u4ee3\u8868\u7cfb\u7edf\u5171\u4eab\u5185\u5b58\u8d44\u6e90<\/p>\n<\/li>\n<li>\n<p>id&#xff1a;\u53d6\u81ea identifier&#xff0c;\u610f\u4e3a\u552f\u4e00\u6807\u8bc6\u7b26<\/p>\n<\/li>\n<\/ul>\n<p>shmid \u662f\u8c03\u7528 shmget() \u51fd\u6570\u521b\u5efa\u6216\u83b7\u53d6\u5171\u4eab\u5185\u5b58\u540e&#xff0c;\u5185\u6838\u8fd4\u56de\u7684\u6574\u578b\u552f\u4e00\u7f16\u53f7\u3002\u6240\u6709\u540e\u7eed\u5171\u4eab\u5185\u5b58\u64cd\u4f5c&#xff0c;\u5305\u62ec\u6302\u8f7d\u3001\u8bfb\u5199\u3001\u5378\u8f7d\u3001\u5220\u9664&#xff0c;\u90fd\u9700\u8981\u4f9d\u9760 shmid \u5b9a\u4f4d\u76ee\u6807\u5171\u4eab\u5185\u5b58\u8d44\u6e90&#xff0c;\u662f\u64cd\u4f5c\u5171\u4eab\u5185\u5b58\u7684\u6838\u5fc3\u51ed\u8bc1\u3002<\/p>\n<h3>\u4e8c\u3001semid&#xff08;\u4fe1\u53f7\u91cf\u96c6\u6807\u8bc6\u7b26&#xff09;<\/h3>\n<p>\u5b8c\u6574\u82f1\u6587\u5168\u79f0&#xff1a;<span style=\"color:#fe2c24\">semaphore<\/span> identifier<\/p>\n<p>\u7f29\u5199\u62c6\u89e3&#xff1a;<\/p>\n<ul>\n<li>\n<p>sem&#xff1a;\u53d6\u81ea semaphore&#xff0c;\u4ee3\u8868\u4fe1\u53f7\u91cf&#xff08;\u4fe1\u53f7\u706f&#xff09;\u8d44\u6e90&#xff0c;\u7528\u4e8e\u8fdb\u7a0b\u3001\u7ebf\u7a0b\u540c\u6b65\u4e92\u65a5<\/p>\n<\/li>\n<li>\n<p>id&#xff1a;\u53d6\u81ea identifier&#xff0c;\u610f\u4e3a\u552f\u4e00\u6807\u8bc6\u7b26<\/p>\n<\/li>\n<\/ul>\n<p>semid \u662f\u8c03\u7528 semget() \u51fd\u6570\u521b\u5efa\u6216\u83b7\u53d6\u4fe1\u53f7\u91cf\u96c6\u540e\u5f97\u5230\u7684\u5185\u6838\u552f\u4e00\u6807\u8bc6\u3002\u540e\u7eed\u901a\u8fc7 semop()\u3001semctl() \u5b8c\u6210\u4fe1\u53f7\u91cf\u7684\u52a0\u51cf\u64cd\u4f5c\u3001\u72b6\u6001\u4fee\u6539\u3001\u9500\u6bc1\u7b49\u529f\u80fd\u65f6&#xff0c;\u5747\u9700\u4f20\u5165 semid \u6307\u5b9a\u64cd\u4f5c\u5bf9\u8c61\u3002<\/p>\n<h3>\u4e09\u3001\u62d3\u5c55&#xff1a;msqid&#xff08;\u6d88\u606f\u961f\u5217\u6807\u8bc6\u7b26&#xff09;<\/h3>\n<p>\u4e3a\u5b8c\u5584 System V IPC \u77e5\u8bc6\u4f53\u7cfb&#xff0c;\u8865\u5145\u540c\u7c7b\u547d\u540d\u89c4\u5219\u7684\u6d88\u606f\u961f\u5217\u6807\u8bc6\u7b26&#xff1a;<\/p>\n<p>\u5b8c\u6574\u82f1\u6587\u5168\u79f0&#xff1a;message queue identifier<\/p>\n<p>\u7f29\u5199\u62c6\u89e3&#xff1a;msq&#xff08;message queue \u6d88\u606f\u961f\u5217&#xff09;&#043; id&#xff08;\u6807\u8bc6\u7b26&#xff09;<\/p>\n<p>\u7531 msgget() \u51fd\u6570\u8fd4\u56de&#xff0c;\u4e13\u95e8\u7528\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u6d88\u606f\u961f\u5217\u8d44\u6e90\u3002<\/p>\n<h3>\u56db\u3001\u7edf\u4e00\u547d\u540d\u89c4\u5f8b&#xff08;\u6838\u5fc3\u8bb0\u5fc6\u70b9&#xff09;<\/h3>\n<p>Linux System V IPC \u6574\u5957\u63a5\u53e3\u9075\u5faa\u6781\u7b80\u7edf\u4e00\u7684\u547d\u540d\u89c4\u8303&#xff0c;\u662f\u65b0\u624b\u5feb\u901f\u533a\u5206\u7684\u5173\u952e&#xff1a;<\/p>\n<li>\n<p>\u524d\u7f00\u533a\u5206\u8d44\u6e90\u7c7b\u578b&#xff1a;shm \u5bf9\u5e94\u5171\u4eab\u5185\u5b58\u3001sem \u5bf9\u5e94\u4fe1\u53f7\u91cf\u3001msg \u5bf9\u5e94\u6d88\u606f\u961f\u5217&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u540e\u7f00\u7edf\u4e00\u56fa\u5b9a&#xff1a;\u6240\u6709 IPC \u8d44\u6e90\u6807\u8bc6\u7b26\u5747\u4ee5 id \u7ed3\u5c3e&#xff0c;\u4ee3\u8868\u5185\u6838\u552f\u4e00\u6807\u8bc6&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u7cfb\u7edf\u8c03\u7528\u547d\u540d\u5339\u914d&#xff1a;\u8d44\u6e90\u524d\u7f00 &#043; get&#xff0c;\u5373\u4e3a\u521b\u5efa\/\u83b7\u53d6\u8d44\u6e90\u7684\u51fd\u6570\u540d&#xff1a;shmget\u3001semget\u3001msgget\u3002<\/p>\n<\/li>\n<h3>\u4e94\u3001\u5173\u952e\u907f\u5751\u8bf4\u660e<\/h3>\n<p>\u65b0\u624b\u7f16\u7801\u65f6\u5e38\u51fa\u73b0\u4f4e\u7ea7\u9519\u8bef&#xff1a;\u5c06 shmid\u3001semid \u53d8\u91cf\u540d\u8bef\u5199\u4e3a pid\u3002\u4e8c\u8005\u5b8c\u5168\u65e0\u5173&#xff1a;<\/p>\n<p>pid \u662f\u8fdb\u7a0b ID&#xff0c;\u6807\u8bc6\u7cfb\u7edf\u8fdb\u7a0b&#xff1b;<\/p>\n<p>shmid\/semid\/msqid \u662f IPC \u8d44\u6e90 ID&#xff0c;\u6807\u8bc6\u5185\u6838\u901a\u4fe1\u8d44\u6e90\u3002<\/p>\n<p>\u53d8\u91cf\u540d\u4e25\u7981\u6df7\u7528&#xff0c;\u5426\u5219\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u903b\u8f91\u9519\u8bef\u3002<\/p>\n<h3>\u516d\u3001\u7cfb\u7edf\u547d\u4ee4\u5bf9\u5e94\u67e5\u770b\u65b9\u5f0f<\/h3>\n<p>\u53ef\u901a\u8fc7\u7cfb\u7edf\u547d\u4ee4\u76f4\u63a5\u67e5\u770b\u5bf9\u5e94 IPC \u8d44\u6e90&#xff0c;\u5370\u8bc1\u6807\u8bc6\u7b26\u4f5c\u7528&#xff1a;<\/p>\n<ul>\n<li>\n<p>ipcs -m&#xff1a;\u67e5\u770b\u6240\u6709\u5171\u4eab\u5185\u5b58&#xff08;shmid&#xff09;\u8d44\u6e90<\/p>\n<\/li>\n<li>\n<p>ipcs -s&#xff1a;\u67e5\u770b\u6240\u6709\u4fe1\u53f7\u91cf&#xff08;semid&#xff09;\u8d44\u6e90<\/p>\n<\/li>\n<li>\n<p>ipcrm&#xff1a;\u6839\u636e\u5bf9\u5e94 ID \u5220\u9664 IPC \u8d44\u6e90<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Linux System V \u8fdb\u7a0b\u901a\u4fe1\u673a\u5236\u4e2d&#xff0c;\u5171\u4eab\u5185\u5b58\u3001\u4fe1\u53f7\u91cf\u3001\u6d88\u606f\u961f\u5217\u662f\u4e09\u5927\u6838\u5fc3 IPC \u8d44\u6e90&#xff0c;\u5185\u6838\u4f1a\u4e3a\u6bcf\u4e00\u4e2a\u521b\u5efa\u7684 IPC \u8d44\u6e90\u5206\u914d\u552f\u4e00\u6807\u8bc6\u7b26&#xff0c;\u4e5f\u5c31\u662f\u6211\u4eec\u4ee3\u7801\u4e2d\u5e38\u89c1\u7684 shmid\u3001semid\u3001msqid\u3002\u4e09\u8005\u547d\u540d\u683c\u5f0f\u9ad8\u5ea6\u7edf\u4e00&#xff0c;\u4ec5\u524d\u7f00\u4e0d\u540c&#xff0c;\u672c\u6587\u6e05\u6670\u62c6\u89e3\u5176\u82f1\u6587\u5168\u79f0\u3001\u542b\u4e49\u53ca\u547d\u540d\u89c4\u5219&#xff0c;\u65b9\u4fbf\u5feb\u901f\u8bb0\u5fc6\u4e0e\u533a\u5206\u3002\u4e00\u3001shmid&#xff08;\u5171\u4eab\u5185\u5b58\u6807\u8bc6\u7b26&#xff09;\u5b8c\u6574\u82f1\u6587\u5168\u79f0&#xff1a;s<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,43,44],"topic":[],"class_list":["post-108626","post","type-post","status-publish","format-standard","hentry","category-server","tag-linux","tag-43","tag-44"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>System V IPC\uff1ashmid \u4e0e semid 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