IQ.Pilot Release Commit @ 0798119

common/prefix.h

@@ -0,0 +1,43 @@
+#pragma once
+
+#include <cassert>
+#include <string>
+
+#include "common/params.h"
+#include "common/util.h"
+#include "system/hardware/hw.h"
+
+class OpenpilotPrefix {
+public:
+  OpenpilotPrefix(std::string prefix = {}) {
+    if (prefix.empty()) {
+      prefix = util::random_string(15);
+    }
+#ifdef __APPLE__
+    msgq_path = "/tmp/msgq_" + prefix;
+#else
+    msgq_path = "/dev/shm/msgq_" + prefix;
+#endif
+    bool ret = util::create_directories(msgq_path, 0777);
+    assert(ret);
+    setenv("OPENPILOT_PREFIX", prefix.c_str(), 1);
+  }
+
+  ~OpenpilotPrefix() {
+    auto param_path = Params().getParamPath();
+    if (util::file_exists(param_path)) {
+      std::string real_path = util::readlink(param_path);
+      system(util::string_format("rm %s -rf", real_path.c_str()).c_str());
+      unlink(param_path.c_str());
+    }
+    if (getenv("COMMA_CACHE") == nullptr) {
+      system(util::string_format("rm %s -rf", Path::download_cache_root().c_str()).c_str());
+    }
+    system(util::string_format("rm %s -rf", Path::comma_home().c_str()).c_str());
+    system(util::string_format("rm %s -rf", msgq_path.c_str()).c_str());
+    unsetenv("OPENPILOT_PREFIX");
+  }
+
+private:
+  std::string msgq_path;
+};