Boost.Interprocess is a part of the C++ Boost library. It simplifies the use of common interprocess communication and synchronization mechanisms.
Questions tagged [boost-interprocess]
371 questions
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problem in boost-interprocess library
std::pair p = managed_shm.find("Integer");
can someone provide me with the definition of this find method.
Shweta
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How to determine how much shared memory to allocate?
I am creating an interprocess communication scheme using boost::interprocess. I want my shared memory area to contain some std::vectors and am doing this based on the example provided here.
To communicate, I plan to put a struct like the following…
crobar
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Boost.Interprocess memory location
In the Boost.Interprocess documentation Where is this being allocated? it is stated that Boost.Interprocess containers are placed in shared memory using two mechanisms at the same time:
Boost.Interprocess construct<>, find_or_construct<>...…
poukill
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boost::interprocess::map compiler error "cannot be overloaded"
I am getting a compiler error trying to use boost::interprocess:map and I do not understand the error.
Declaring the map and its allocator
using namespace boost::interprocess;
struct Order {
uint64_t id = 0;
uint64_t val = 0;
};
typedef…
The Dude
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c++ boost interprocess exchange (copy) non-shared and shared string vector
I want to achieve what was achieved in the answer to this question, but for a vector of strings i.e. string objects. I want to be able to write common code that can be used with either heap memory or shared memory. I have emulated the code and wrote…
Dnj Abc
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Assertion when trying to a use a Boost.Interprocess message queue across a bunch of processes
I have the following reduced program that spins up a bunch of child processes and then uses a boost::interprocess::message_queue to send a message to each one. This works when number of processes is small (about 4 on my machine) but as that number…
Sam Kellett
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Boost::interprocess managed_shared_memory pointer effective scope
I just use boost::interprocess::managed_shared_memory to create a shared vector in memory, I have successfully created the shared memory, I find when I read the vector, it's ok to read and print all elements in the vector in comment 1, but when…
Anry Yang
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Constructing object on shared memory with integer identifier
When I look at the samples of boost interprocess library, the objects are always constructed with string name.
segment.construct("name")("param1", "param2");
Is it possible to construct the object with integer identifier…
penguru
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Boost Container vs Boost multi_index_container
What are the advantages of the boost::container class compared to boost::multi_index_container one?
They can both store their data in shared memory and work with Boost.Interprocess (crucial for me), and multi_index_container seems to provide more…
Pietro
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problems with boost:interprocess shared memory
I'm having some trouble implementing boost/interprocess library for shared memory operations between two programs. This is the first I've used any shared memory operations, and I have first modified some of the sample code in the boost documentation…
brneuro
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how to get a shmid from a boost::interprocess::managed_shared_memory object
boost::interprocess will create a shm like this:
boost::interprocess::managed_shared_memory segment(boost::interprocess::open_or_create, "ContainerSharedMemory", 65536);
but how can a watch this shm like this:
/Tool/SHMCache$ ipcs -m
key …
Dylan Wang
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Unable to find vector in shared memory segment
I'm attempting to share a vector between two Windows processes which run in the same context (either both as user processes, or both as a service). I'm going by the official example which actually works just fine for me.
The only difference is that…
Lucky Luke
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Boost IPC: Only remove shared object when the last process is closed
I'm currently using Boost's shared memory for IPC.
I only want to remove the shared memory when the last process exits. If I try to remove the object before the last process, it will change the name and it's then not possible to reopen it for…
A.Fagrell
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What is a good stategy to follow to provide a shared memory folder required by boost named_semaphore on windows?
I used boost's named_semaphore for IPC. We have one program/process (parent) invoking another (child). If the parent is killed (kill -9 scenario), we want the child to complete its work and exit, and the parent shall, upon starting wait until the…
Werner Erasmus
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Boost interprocess_mutex copy/move constructor?
I'm trying to create a vector of objects in shared memory that each own an interprocess_mutex as follows:
struct test
{
test(){}
interprocess_mutex mutex;
};
using namespace boost::interprocess;
managed_shared_memory seg(open_or_create,…
jondo2010
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