move HAL and tests folder

src/fsfw_hal/linux/UnixFileGuard.cpp

@@ -0,0 +1,36 @@
+#include "fsfw_hal/linux/UnixFileGuard.h"
+
+#include <cerrno>
+#include <cstring>
+
+#include "fsfw/FSFW.h"
+#include "fsfw/serviceinterface.h"
+
+UnixFileGuard::UnixFileGuard(std::string device, int* fileDescriptor, int flags,
+                             std::string diagnosticPrefix)
+    : fileDescriptor(fileDescriptor) {
+  if (fileDescriptor == nullptr) {
+    return;
+  }
+  *fileDescriptor = open(device.c_str(), flags);
+  if (*fileDescriptor < 0) {
+#if FSFW_VERBOSE_LEVEL >= 1
+#if FSFW_CPP_OSTREAM_ENABLED == 1
+    sif::warning << diagnosticPrefix << ": Opening device failed with error code " << errno << ": "
+                 << strerror(errno) << std::endl;
+#else
+    sif::printWarning("%s: Opening device failed with error code %d: %s\n", diagnosticPrefix, errno,
+                      strerror(errno));
+#endif /* FSFW_CPP_OSTREAM_ENABLED == 1 */
+#endif /* FSFW_VERBOSE_LEVEL >= 1 */
+    openStatus = OPEN_FILE_FAILED;
+  }
+}
+
+UnixFileGuard::~UnixFileGuard() {
+  if (fileDescriptor != nullptr) {
+    close(*fileDescriptor);
+  }
+}
+
+ReturnValue_t UnixFileGuard::getOpenResult() const { return openStatus; }