mmap

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Mmap system call operation that is able to access memory locations

I am writing a program that allocates huge chunks of memory using mmap and then accesses random memory locations to read and write into it.[详细]

2023-02-15 06:13 分类：问答
Can mmap and gzip collaborate?

I\'m trying to figure how to use mmap with a gzip compressed file. Is that even possible ? import mmap[详细]

2023-02-14 03:10 分类：问答
When offset is passed descending mmap, mmap call failed

under linux : #free -m totalusedfreesharedbufferscached Mem:19951460534068432 -/+ buffers/cache:9591035 Swap:20557431311[详细]

2023-02-11 07:31 分类：问答
using numpy.memmap to map a device file

Is there a reason that opening a device file (rather than a regular file) using numpy\'s memmap shouldn\'t work?[详细]

2023-02-10 19:59 分类：问答
why is it not possible to use mmap with socket fd as an argument?

i know it\'s not possibl开发者_开发知识库e, i\'m trying to understand the true reason behind it OS wiseBecause the concept of a socket simply doesn\'t map to the concept of a random-access in-memory a[详细]

2023-02-08 06:17 分类：问答
example needed using mmap function in python

I am seeking an example in python to memory map a 1gb file. Does anyone have an example I can use? The file can be any 开发者_JAVA技巧random text. I just want to look to see what is the proper way to[详细]

2023-02-08 05:40 分类：问答
std::merge using 2 mmaped arrays?

I\'m mmaping two text files with an integer written on each line. I read them from the drive and I wanted to do a sorted merge on them.[详细]

2023-02-07 11:05 分类：问答
How to use mmap to allocate a memory in heap?

Just 开发者_运维知识库the question stated, how can I use mmap() to allocate a memory in heap? This is my only option because malloc() is not a reentrant function.Why do you need reentrancy? The only t[详细]

2023-02-06 21:25 分类：问答
Overload new operator to store objects in mmap'd file

I have a Linux C++ program with fairly large memory requirements. Most of the memory is consumed by just a few classes, and is accessed reasonably infrequent. I want to move these classes from main me[详细]

2023-02-03 18:29 分类：问答
IPC via mmap'ed file: should atomics and/or volatile be used?

I use a mmap\'ed file to share data between processes. The code is like this: struct Shared { int Data; };[详细]

2023-02-03 15:48 分类：问答