C++ Threading

Thread

Program = a running code + data
Process = a running program, one program can have multiple processes
Thread = a unit of execution inside a process, one process can have multiple threads
Join = the same as wait, block current thread until this other thread had completed

Shared memory = create a special memory region that ack as the memory region lake. when a process want to share some data, it just need make a write to the memory region, and the same thing goes when other process wants to read data from the memory
Message passing = when process A wants to share data to process B, process A calls the system kernel to passing the data to process B
Socket = A socket is an endpoint of communication to which a name can be bound
Semaphore = Semaphores let processes query or alter status information
Message passing = message-passing module a message onto a queue which can be read by another process
Pub socket = cannot receive any data, only send. fan-in no fan-out.

zeromq operate the IPC/RPC through socket

Name		Name	Last commit message	Last commit date
Latest commit History 11 Commits
.clang-format		.clang-format
.gitignore		.gitignore
CMakeLists.txt		CMakeLists.txt
README.md		README.md
all-client.cpp		all-client.cpp
all-server.cpp		all-server.cpp
cv_client.cpp		cv_client.cpp
cv_msg.cpp		cv_msg.cpp
cv_server.cpp		cv_server.cpp
img1.jpg		img1.jpg
main.cpp		main.cpp
main2.cpp		main2.cpp
main_client.cpp		main_client.cpp
main_ipc.cpp		main_ipc.cpp
main_server.cpp		main_server.cpp
main_thread.cpp		main_thread.cpp
message.hpp		message.hpp