{"id":4025,"date":"2024-04-13T09:16:21","date_gmt":"2024-04-13T03:46:21","guid":{"rendered":"https:\/\/cthecosmos.com\/?p=4025"},"modified":"2024-04-13T09:16:32","modified_gmt":"2024-04-13T03:46:32","slug":"linux-ipcs","status":"publish","type":"post","link":"https:\/\/cthecosmos.com\/?p=4025","title":{"rendered":"Linux IPC’s"},"content":{"rendered":"\n
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Linux IPCs, or Inter-Process Communications, are tools and techniques in the Linux operating system that allow different processes to talk to each other. Think of them like the postal service of a computer; they help different programs send and receive messages or data.

Let’s take a look at a few of them

\ud835\udc77\ud835\udc8a\ud835\udc91\ud835\udc86\ud835\udc94:\u00a0A one-way street for data, mostly between parent-child processes.

\ud835\udc6d\ud835\udc8a\ud835\udc87\ud835\udc90\u00a0(Named Pipe): This is like a pipe, but with a name, allowing even unrelated processes to talk.

\ud835\udc74\ud835\udc86\ud835\udc94\ud835\udc94\ud835\udc82\ud835\udc88\ud835\udc86 \ud835\udc78\ud835\udc96\ud835\udc86\ud835\udc96\ud835\udc86: Think of it like a mailbox. Processes can drop and pick messages, even in order of priority.

\ud835\udc7a\ud835\udc89\ud835\udc82\ud835\udc93\ud835\udc86\ud835\udc85 \ud835\udc74\ud835\udc86\ud835\udc8e\ud835\udc90\ud835\udc93\ud835\udc9a: A communal space where processes share data. It’s super fast but needs careful coordination.

\ud835\udc6b\ud835\udc82\ud835\udc95\ud835\udc82 \ud835\udc6e\ud835\udc93\ud835\udc82\ud835\udc8e: Uses UDP. It’s a bit carefree; doesn’t always ensure the message reaches.

\ud835\udc7a\ud835\udc95\ud835\udc93\ud835\udc86\ud835\udc82\ud835\udc8e \ud835\udc7a\ud835\udc90\ud835\udc84\ud835\udc8c\ud835\udc86\ud835\udc95\ud835\udc94: Uses TCP. More responsible, ensures the message gets through.

\ud835\udc7a\ud835\udc8a\ud835\udc88\ud835\udc8f\ud835\udc82\ud835\udc8d\ud835\udc94: These are like alarms. They notify processes of events.

\ud835\udc6d\ud835\udc8a\ud835\udc8d\ud835\udc86-\ud835\udc83\ud835\udc82\ud835\udc94\ud835\udc86\ud835\udc85 \ud835\udc6a\ud835\udc90\ud835\udc8e\ud835\udc8e\ud835\udc96\ud835\udc8f\ud835\udc8a\ud835\udc84\ud835\udc82\ud835\udc95\ud835\udc8a\ud835\udc90\ud835\udc8f: Just like it sounds, processes talk by reading and writing to a file.

\ud835\udc69\ud835\udc8a\ud835\udc8f\ud835\udc82\ud835\udc93\ud835\udc9a \ud835\udc7a\ud835\udc86\ud835\udc8e\ud835\udc82\ud835\udc91\ud835\udc89\ud835\udc90\ud835\udc93\ud835\udc86: A simple yes\/no (0 or 1) flag.

\ud835\udc6a\ud835\udc90\ud835\udc96\ud835\udc8f\ud835\udc95\ud835\udc8a\ud835\udc8f\ud835\udc88 \ud835\udc7a\ud835\udc86\ud835\udc8e\ud835\udc82\ud835\udc91\ud835\udc89\ud835\udc90\ud835\udc93\ud835\udc86: A more nuanced semaphore that can count up or down.

\ud835\udc79\ud835\udc86\ud835\udc84\ud835\udc90\ud835\udc93\ud835\udc85 \ud835\udc73\ud835\udc90\ud835\udc84\ud835\udc8c: Locks a piece of a file so others can’t touch it.

\ud835\udc7a\ud835\udc95\ud835\udc82\ud835\udc8f\ud835\udc85\ud835\udc82\ud835\udc93\ud835\udc85 \ud835\udc74\ud835\udc96\ud835\udc95\ud835\udc86\ud835\udc99: Ensures only one at a time access.

\ud835\udc79\ud835\udc86\ud835\udc84\ud835\udc96\ud835\udc93\ud835\udc94\ud835\udc8a\ud835\udc97\ud835\udc86 \ud835\udc74\ud835\udc96\ud835\udc95\ud835\udc86\ud835\udc99: A mutex that’s forgiving, lets a process lock something it’s already locked.

\ud835\udc6d\ud835\udc96\ud835\udc95\ud835\udc86\ud835\udc99\ud835\udc86\ud835\udc94: Super fast, prefers to keep things in user-space.

\ud835\udc6a\ud835\udc90\ud835\udc8f\ud835\udc85\ud835\udc8a\ud835\udc95\ud835\udc8a\ud835\udc90\ud835\udc8f \ud835\udc7d\ud835\udc82\ud835\udc93\ud835\udc8a\ud835\udc82\ud835\udc83\ud835\udc8d\ud835\udc86\ud835\udc94: Makes a process wait until a condition is met.

\ud835\udc69\ud835\udc82\ud835\udc93\ud835\udc93\ud835\udc8a\ud835\udc86\ud835\udc93\ud835\udc94: Like a checkpoint in a relay race, ensures all processes reach a point before moving on.

\ud835\udc7a\ud835\udc91\ud835\udc8a\ud835\udc8f\ud835\udc8d\ud835\udc90\ud835\udc84\ud835\udc8c\ud835\udc94: A process waits by, well, spinning, until it gets a lock. Great for short waits.

\ud835\udc6b\ud835\udc86\ud835\udc82\ud835\udc85\ud835\udc8d\ud835\udc90\ud835\udc84\ud835\udc8c \ud835\udc77\ud835\udc93\ud835\udc90\ud835\udc95\ud835\udc90\ud835\udc84\ud835\udc90\ud835\udc8d\ud835\udc94: Safety mechanisms to ensure processes don’t wait forever.

\ud835\udc74\ud835\udc90\ud835\udc8f\ud835\udc8a\ud835\udc95\ud835\udc90\ud835\udc93\ud835\udc94: A sophisticated tool ensuring only one process enters a segment and can wait for conditions.

\ud835\udc79\ud835\udc86\ud835\udc82\ud835\udc85-\ud835\udc7e\ud835\udc93\ud835\udc8a\ud835\udc95\ud835\udc86 \ud835\udc73\ud835\udc90\ud835\udc84\ud835\udc8c\ud835\udc94: Allows many to read, but only one to write.<\/p>\n\n\n\n

<\/p>\n\n\n\n

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
An Article by: <\/strong>Yashwanth Naidu Tikkisetty
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/p>\n","protected":false},"excerpt":{"rendered":"

Linux IPCs are essential tools for processes to communicate in the operating system. They include various methods like Pipes, Message Queues, Shared Memory, Sockets, Semaphores, and File-based communication. Each method serves specific communication needs, from simple data transfer to complex synchronization and coordination among processes.<\/p>\nRead More Linux IPC’s<\/span><\/a>","protected":false},"author":120055267,"featured_media":4029,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":false,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[30181,35264203,769114260,5495],"tags":[772321193,1524707,7113496,17208128,1522448,34922710,46376,805807,79812,513000,1354040,12931,34972447],"class_list":["post-4025","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-embedded-systems","category-linux-3","category-linuxlearnings","category-operating-system","tag-embedded-systems","tag-fifo","tag-futex","tag-inter-process-communication","tag-ipcs","tag-linux-2","tag-message","tag-mutex","tag-pipes","tag-semaphore","tag-short-article","tag-sockets","tag-threads-2","fallback-thumbnail"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t