From 44f772a7442e617d4a93c0b3ed318ffb42991d8b Mon Sep 17 00:00:00 2001
From: Christian Krinitsin <mail@krinitsin.com>
Date: Fri, 21 Mar 2025 10:42:09 +0100
Subject: implement communication between server and client (without mutexes
 and with queue_length of 1)

---
 src/client/main.cpp | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 src/client/main.cpp

(limited to 'src/client/main.cpp')

diff --git a/src/client/main.cpp b/src/client/main.cpp
new file mode 100644
index 0000000..2e4a606
--- /dev/null
+++ b/src/client/main.cpp
@@ -0,0 +1,49 @@
+#include "shared_memory.h"
+#include <cstring>
+#include <fcntl.h>
+#include <iostream>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <utility>
+
+void sendRequest(
+    SharedMemory* shared_memory,
+    Operations type,
+    std::pair<const std::string&, const std::string&> arguments)
+{
+    shared_memory->request.type = type;
+    strncpy(shared_memory->request.key, serialize(arguments.first).c_str(), MAX_KEY_SIZE);
+    strncpy(shared_memory->request.value, serialize(arguments.second).c_str(), MAX_VALUE_SIZE);
+    shared_memory->processed = false;
+
+    std::cout << "Command sent" << '\n';
+
+    sleep(2);
+
+    if (type == Operations::GET) {
+        std::string result(shared_memory->response);
+        std::cout << "Result: " << result << std::endl;
+    }
+}
+
+int main()
+{
+    int shm_fd = shm_open(SHM_NAME, O_RDWR, 0666);
+    if (shm_fd == -1) {
+        std::cout << "Server not running" << '\n';
+        return -1;
+    }
+
+    SharedMemory* shared_memory =
+        (SharedMemory*)mmap(0, sizeof(SharedMemory), PROT_READ | PROT_WRITE, MAP_SHARED, shm_fd, 0);
+
+    std::cout << "Start inserting.." << '\n';
+    sendRequest(shared_memory, INSERT, std::pair(serialize(10), serialize(5)));
+
+    std::cout << "Start printing.." << '\n';
+    sendRequest(shared_memory, PRINT, std::pair(serialize(10), serialize(5)));
+
+    munmap(shared_memory, sizeof(SharedMemory));
+    close(shm_fd);
+    return 0;
+}
-- 
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