kel rap for running multiple simsHEADmain

1 files changed, 51 insertions, 0 deletions

diff --git a/kel_rap/c++/kel_rap.cpp b/kel_rap/c++/kel_rap.cpp
new file mode 100644
index 0000000..d505125
--- /dev/null
+++ b/kel_rap/c++/kel_rap.cpp
@@ -0,0 +1,51 @@
+#include <array>
+#include <filesystem>
+#include <iostream>
+#include <string>
+
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+namespace fs = std::filesystem;
+
+int main(int argc, char* argv[]) {
+    if (argc != 2) {
+        std::cerr << "Usage: " << argv[0] << " <dir>\n";
+        return -1;
+    }
+
+    for (const auto& e : fs::directory_iterator(argv[1])) {
+        if (!e.is_regular_file())
+            continue;
+
+        std::string path = e.path().string();
+
+        pid_t pid = fork();
+        if (pid < 0) {
+            std::cerr << "fork failed\n";
+            return -1;
+        }
+
+        if (pid == 0) {
+			  std::string path = e.path().string();
+				std::array<char*, 2> args{
+					 path.data(),
+					 nullptr
+				};
+
+				execvp(args[0], args.data());
+
+            std::cerr << "execvp failed: " << path << '\n';
+            return -1;
+        }
+
+        int status;
+        if (waitpid(pid, &status, 0) < 0) {
+            std::cerr << "waitpid failed\n";
+            return -1;
+        }
+    }
+
+    return 0;
+}