common: logging: backend: Wrap IOFile in a unique_ptr

Allows us to forward declare FileUtil::IOFile.

src/common/logging/backend.cpp

@@ -16,6 +16,7 @@
 #define _SH_DENYWR 0
 #endif
 #include "common/assert.h"
+#include "common/file_util.h"
 #include "common/logging/backend.h"
 #include "common/logging/log.h"
 #include "common/logging/text_formatter.h"
@@ -133,14 +134,20 @@ private:
     std::chrono::steady_clock::time_point time_origin{std::chrono::steady_clock::now()};
 };
 
+ConsoleBackend::~ConsoleBackend() = default;
+
 void ConsoleBackend::Write(const Entry& entry) {
     PrintMessage(entry);
 }
 
+ColorConsoleBackend::~ColorConsoleBackend() = default;
+
 void ColorConsoleBackend::Write(const Entry& entry) {
     PrintColoredMessage(entry);
 }
 
+LogcatBackend::~LogcatBackend() = default;
+
 void LogcatBackend::Write(const Entry& entry) {
     PrintMessageToLogcat(entry);
 }
@@ -157,19 +164,21 @@ FileBackend::FileBackend(const std::string& filename) {
 
     // _SH_DENYWR allows read only access to the file for other programs.
     // It is #defined to 0 on other platforms
-    file = FileUtil::IOFile(filename, "w", _SH_DENYWR);
+    file = std::make_unique<FileUtil::IOFile>(filename, "w", _SH_DENYWR);
 }
 
+FileBackend::~FileBackend() = default;
+
 void FileBackend::Write(const Entry& entry) {
     // prevent logs from going over the maximum size (in case its spamming and the user doesn't
     // know)
     constexpr std::size_t MAX_BYTES_WRITTEN = 50 * 1024L * 1024L;
-    if (!file.IsOpen() || bytes_written > MAX_BYTES_WRITTEN) {
+    if (!file->IsOpen() || bytes_written > MAX_BYTES_WRITTEN) {
         return;
     }
-    bytes_written += file.WriteString(FormatLogMessage(entry).append(1, '\n'));
+    bytes_written += file->WriteString(FormatLogMessage(entry).append(1, '\n'));
     if (entry.log_level >= Level::Error) {
-        file.Flush();
+        file->Flush();
     }
 }
 

src/common/logging/backend.h

@@ -8,10 +8,13 @@
 #include <memory>
 #include <string>
 #include <string_view>
-#include "common/file_util.h"
 #include "common/logging/filter.h"
 #include "common/logging/log.h"
 
+namespace FileUtil {
+class IOFile;
+}
+
 namespace Common::Log {
 
 /**
@@ -36,6 +39,7 @@ struct Entry {
 class Backend {
 public:
     virtual ~Backend() = default;
+
     virtual void SetFilter(const Filter& new_filter) {
         filter = new_filter;
     }
@@ -51,6 +55,8 @@ private:
  */
 class ConsoleBackend : public Backend {
 public:
+    ~ConsoleBackend() override;
+
     static const char* Name() {
         return "console";
     }
@@ -65,6 +71,8 @@ public:
  */
 class ColorConsoleBackend : public Backend {
 public:
+    ~ColorConsoleBackend() override;
+
     static const char* Name() {
         return "color_console";
     }
@@ -80,6 +88,8 @@ public:
  */
 class LogcatBackend : public Backend {
 public:
+    ~LogcatBackend() override;
+
     static const char* Name() {
         return "logcat";
     }
@@ -95,6 +105,8 @@ public:
  */
 class FileBackend : public Backend {
 public:
+    ~FileBackend() override;
+
     explicit FileBackend(const std::string& filename);
 
     static const char* Name() {
@@ -108,7 +120,7 @@ public:
     void Write(const Entry& entry) override;
 
 private:
-    FileUtil::IOFile file;
+    std::unique_ptr<FileUtil::IOFile> file;
     std::size_t bytes_written = 0;
 };
 
@@ -117,6 +129,8 @@ private:
  */
 class DebuggerBackend : public Backend {
 public:
+    ~DebuggerBackend() override;
+
     static const char* Name() {
         return "debugger";
     }