Initial Alloy implementation.

This is a regression in functionality and performance, but a much better
foundation for the future of the project (I think). It can run basic
apps under an SSA interpreter but doesn't support some of the features
required to do real 360 apps yet.

src/alloy/tracing/channels/file_channel.cc

@@ -0,0 +1,51 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include <alloy/tracing/channels/file_channel.h>
+
+using namespace alloy;
+using namespace alloy::tracing;
+using namespace alloy::tracing::channels;
+
+
+FileChannel::FileChannel(const char* path) {
+  lock_ = AllocMutex(10000);
+  path_ = xestrdupa(path);
+  file_ = fopen(path, "wb");
+}
+
+FileChannel::~FileChannel() {
+  LockMutex(lock_);
+  fclose(file_);
+  file_ = 0;
+  free(path_);
+  path_ = 0;
+  UnlockMutex(lock_);
+  FreeMutex(lock_);
+}
+
+void FileChannel::Write(
+    size_t buffer_count,
+    size_t buffer_lengths[], const uint8_t* buffers[]) {
+  LockMutex(lock_);
+  if (file_) {
+    for (size_t n = 0; n < buffer_count; n++) {
+      fwrite(buffers[n], buffer_lengths[n], 1, file_);
+    }
+  }
+  UnlockMutex(lock_);
+}
+
+void FileChannel::Flush() {
+  LockMutex(lock_);
+  if (file_) {
+    fflush(file_);
+  }
+  UnlockMutex(lock_);
+}

src/alloy/tracing/channels/file_channel.h

@@ -0,0 +1,46 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef ALLOY_TRACING_CHANNELS_FILE_CHANNEL_H_
+#define ALLOY_TRACING_CHANNELS_FILE_CHANNEL_H_
+
+#include <alloy/core.h>
+
+#include <alloy/tracing/channel.h>
+
+
+namespace alloy {
+namespace tracing {
+namespace channels {
+
+
+class FileChannel : public Channel {
+public:
+  FileChannel(const char* path);
+  virtual ~FileChannel();
+
+  virtual void Write(
+      size_t buffer_count,
+      size_t buffer_lengths[], const uint8_t* buffers[]);
+
+  virtual void Flush();
+
+private:
+  char* path_;
+  FILE* file_;
+  Mutex* lock_;
+};
+
+
+}  // namespace channels
+}  // namespace tracing
+}  // namespace alloy
+
+
+#endif  // ALLOY_TRACING_CHANNELS_FILE_CHANNEL_H_

src/alloy/tracing/channels/sources.gypi

@@ -0,0 +1,7 @@
+# Copyright 2013 Ben Vanik. All Rights Reserved.
+{
+  'sources': [
+    'file_channel.cc',
+    'file_channel.h',
+  ],
+}