6cf668016e
This patch is a proof of concept that shows how a scripted process could be used with real process to perform interactive debugging. In this example, we run a process that spawns 10 threads. That process gets launched by an intermediary scripted process who's job is to intercept all of it's process events and dispatching them back either to the real process or to other child scripted processes. In this example, we have 2 child scripted processes, with even and odd thread indices. The goal is to be able to do thread filtering and explore the various interactive debugging approaches, by letting a child process running when stopping the other process and inspecting it. Another approach would be to have the child processes execution in-sync to force running every child process when one of them starts running. Differential Revision: https://reviews.llvm.org/D145297 Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
36 lines
721 B
C++
36 lines
721 B
C++
#include <iostream>
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#include <mutex>
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#include <string>
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#include <thread>
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#include <vector>
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void spawn_thread(int index) {
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std::string name = "I'm thread " + std::to_string(index) + " !";
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bool done = false;
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std::string state = "Started execution!";
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while (true) {
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if (done) // also break here
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break;
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}
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state = "Stopped execution!";
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}
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int main() {
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constexpr size_t num_threads = 10;
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std::vector<std::thread> threads;
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for (size_t i = 0; i < num_threads; i++) {
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threads.push_back(std::thread(spawn_thread, i));
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}
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std::cout << "Spawned " << threads.size() << " threads!" << std::endl; // Break here
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for (auto &t : threads) {
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if (t.joinable())
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t.join();
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}
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return 0;
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}
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