{"id":160328,"date":"2023-09-26T12:51:12","date_gmt":"2023-09-26T07:21:12","guid":{"rendered":"https:\/\/www.gkseries.com\/blog\/?p=160328"},"modified":"2023-09-26T12:51:24","modified_gmt":"2023-09-26T07:21:24","slug":"consider-the-following-solution-to-the-producer-consumer-synchronization-problem-the-shared-buffer-size-is-%f0%9d%91%81","status":"publish","type":"post","link":"https:\/\/www.gkseries.com\/blog\/consider-the-following-solution-to-the-producer-consumer-synchronization-problem-the-shared-buffer-size-is-%f0%9d%91%81\/","title":{"rendered":"Consider the following solution to the producer-consumer synchronization problem"},"content":{"rendered":"\n<p>Q. Consider the following solution to the producer-consumer synchronization problem. The shared buffer size is \ud835\udc41. Three semaphores <em>empty<\/em>, <em>full <\/em>and mutex are defined with respective initial values of 0, \ud835\udc41 and 1. Semaphore <em>empty <\/em>denotes the number of available slots in the buffer, for the consumer to read from. Semaphore <em>full <\/em>denotes the number of available slots in the buffer, for the producer to write to. The placeholder variables, denoted by P, Q, R, and S, in the code below can be assigned either <em>empty <\/em>or <em>full<\/em>. The valid semaphore operations are: wait() and signal()<em>.<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"816\" height=\"245\" src=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/09\/Screenshot-960.png\" alt=\"\" class=\"wp-image-160329\" srcset=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/09\/Screenshot-960.png 816w, https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/09\/Screenshot-960-300x90.png 300w, https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/09\/Screenshot-960-768x231.png 768w\" sizes=\"(max-width: 816px) 100vw, 816px\" \/><\/figure>\n\n\n\n<p>Which one of the following assignments to P, Q, R and S will yield the correct solution?<\/p>\n\n\n\n<p>A. P: <em>full<\/em>,\u00a0\u00a0\u00a0\u00a0\u00a0 Q: <em>full<\/em>,\u00a0\u00a0\u00a0\u00a0 R: <em>empty<\/em>, S: <em>empty<\/em><\/p>\n\n\n\n<p>B. P: <em>empty<\/em>, Q: <em>empty<\/em>, R: <em>full<\/em>,\u00a0\u00a0\u00a0\u00a0 S: <em>full<\/em><\/p>\n\n\n\n<p>C. P: <em>full<\/em>,\u00a0\u00a0\u00a0\u00a0\u00a0 Q: <em>empty<\/em>, R: <em>empty<\/em>, S: <em>full<\/em><\/p>\n\n\n\n<p>D. P: <em>empty<\/em>, Q: <em>full<\/em>,\u00a0\u00a0\u00a0\u00a0\u00a0 R: <em>full<\/em>,\u00a0\u00a0\u00a0\u00a0\u00a0 S: <em>empty<\/em><\/p>\n\n\n\n<p>Ans: P: <em>full<\/em>,\u00a0\u00a0Q: <em>empty<\/em>, R: <em>empty<\/em>, S: <em>full<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Q. Consider the following solution to the producer-consumer synchronization problem. The shared buffer size is \ud835\udc41. Three semaphores empty, full and mutex are defined with respective initial values of 0, \ud835\udc41 and 1. Semaphore empty denotes the number of available slots in the buffer, for the consumer to read from. Semaphore full denotes the number [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":160330,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5141],"tags":[5140],"class_list":["post-160328","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gate","tag-gate-questions"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/160328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/419"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=160328"}],"version-history":[{"count":2,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/160328\/revisions"}],"predecessor-version":[{"id":160332,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/160328\/revisions\/160332"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/160330"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=160328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=160328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=160328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}