1 files changed, 28 insertions, 11 deletions
diff --git a/lib/xray/xray_utils.h b/lib/xray/xray_utils.h
index eafa16e1a9d5..60438973fbd0 100644
--- a/lib/xray/xray_utils.h
+++ b/lib/xray/xray_utils.h
@@ -20,23 +20,40 @@
 #include <sys/types.h>
 #include <utility>
 
+#include "sanitizer_common/sanitizer_common.h"
+#if SANITIZER_FUCHSIA
+#include <zircon/types.h>
+#endif
+
 namespace __xray {
 
-// Default implementation of the reporting interface for sanitizer errors.
-void printToStdErr(const char *Buffer);
+class LogWriter {
+public:
+#if SANITIZER_FUCHSIA
+ LogWriter(zx_handle_t Vmo) : Vmo(Vmo) {}
+#else
+  explicit LogWriter(int Fd) : Fd(Fd) {}
+#endif
+ ~LogWriter();
 
-// EINTR-safe write routine, provided a file descriptor and a character range.
-void retryingWriteAll(int Fd, const char *Begin, const char *End);
+ // Write a character range into a log.
+ void WriteAll(const char *Begin, const char *End);
 
-// Reads a long long value from a provided file.
-bool readValueFromFile(const char *Filename, long long *Value);
+ void Flush();
 
-// EINTR-safe read routine, providing a file descriptor and a character range.
-std::pair<ssize_t, bool> retryingReadSome(int Fd, char *Begin, char *End);
+ // Returns a new log instance initialized using the flag-provided values.
+ static LogWriter *Open();
+ // Closes and deallocates the log instance.
+ static void Close(LogWriter *LogWriter);
 
-// EINTR-safe open routine, uses flag-provided values for initialising a log
-// file.
-int getLogFD();
+private:
+#if SANITIZER_FUCHSIA
+ zx_handle_t Vmo = ZX_HANDLE_INVALID;
+ uint64_t Offset = 0;
+#else
+ int Fd = -1;
+#endif
+};
 
 constexpr size_t gcd(size_t a, size_t b) {
   return (b == 0) ? a : gcd(b, a % b);