From c644379e79262a7478a7fb9ea8001f315fdb6eaf Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Thu, 28 Mar 2024 16:18:36 -0400
Subject: Initial commit

---
 src/vm.cc | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 src/vm.cc

(limited to 'src/vm.cc')

diff --git a/src/vm.cc b/src/vm.cc
new file mode 100644
index 0000000..29fcc43
--- /dev/null
+++ b/src/vm.cc
@@ -0,0 +1,85 @@
+#include "vm.h"
+#include <iostream>
+#include <thread>
+
+namespace vm {
+    virConnectPtr conn = NULL;
+
+    struct vmImpl {
+        virDomainPtr dom;
+        virStreamPtr stream;
+        std::thread receiver;
+    };
+
+    void initConn() {
+        if (conn == NULL) {
+            conn = virConnectOpen("qemu:///system");
+        }
+        if (conn == NULL) {
+            std::cerr << "Failed to open connection to qemu:///system\n";
+        }
+    }
+
+    void clearAllVMs() {
+        initConn();
+        virDomainPtr *domains;
+        int numDomains = virConnectListAllDomains(conn, &domains, 0);
+        for (int i = 0; i < numDomains; i++) {
+            virDomainDestroy(domains[i]);
+            virDomainFree(domains[i]);
+        }
+        free(domains);
+    }
+
+    VM::VM() : data(new vmImpl()) {
+        initConn();
+        data->stream = virStreamNew(conn, 0);
+    }
+
+    VM::~VM() {
+        virStreamAbort(data->stream);
+        virStreamFree(data->stream);
+    }
+
+    int VM::start(std::string config) {
+        data->dom = virDomainCreateXML(conn, config.c_str(), VIR_DOMAIN_START_AUTODESTROY);
+        if (!data->dom) {
+            std::cerr << "Domain creation failed\n";
+            return 1;
+        }
+        return 0;
+    }
+
+    void VM::stop() {
+        if (data->dom) {
+            virDomainFree(data->dom);
+        }
+    }
+
+    void receiveTask(virStreamPtr stream, std::function<int(const char*,size_t)> receiver) {
+
+        virStreamRecvAll(stream,
+                [](virStreamPtr stream, const char *data, size_t nbytes, void *opaque) {
+                auto *receiver = static_cast<std::function<int(const char*,size_t)>*>(opaque);
+                return (*receiver)(data, nbytes);
+                },
+                &receiver);
+    }
+
+    void sendTask(virStreamPtr stream, std::function<int(char*,size_t)> sender) {
+        virStreamSendAll(stream,
+                [](virStreamPtr stream, char *data, size_t nbytes, void *opaque) {
+                auto *sender = static_cast<std::function<int(char*,size_t)>*>(opaque);
+                return (*sender)(data, nbytes);
+                },
+                &sender);
+    }
+
+    void VM::connect(std::function<int(const char*,size_t)> receiver, std::function<int(char*,size_t)> sender) {
+        if (virDomainOpenConsole(data->dom, NULL, data->stream, 0)) {
+            std::cerr << "Failed to open console\n";
+        }
+        data->receiver = std::thread(receiveTask, data->stream, receiver);
+        sendTask(data->stream, sender); // Blocking
+    }
+}
-- 
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