- Fix for issue 25950 (add registration of a thread exit callback)

runtime/include/dart_api.h

 /*
  * Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
  * for details. All rights reserved. Use of this source code is governed by a
  * BSD-style license that can be found in the LICENSE file.
  */
 
 #ifndef INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
@@ skipping 703 matching lines @@
  * This function should be used to dispose of native resources that
  * are allocated to an isolate in order to avoid leaks.
  *
  * \param callback_data The same callback data which was passed to the
  *   isolate when it was created.
  *
  */
 typedef void (*Dart_IsolateShutdownCallback)(void* callback_data);
 
 /**
+ * A thread death callback function.
+ * This callback, provided by the embedder, is called before a thread in the
+ * vm thread pool exits.
+ * This function could be used to dispose of native resources that
+ * are associated and attached to the thread, in order to avoid leaks.
+ */
+typedef void (*Dart_ThreadExitCallback)();
+
+/**
  * Callbacks provided by the embedder for file operations. If the
  * embedder does not allow file operations these callbacks can be
  * NULL.
  *
  * Dart_FileOpenCallback - opens a file for reading or writing.
  * \param name The name of the file to open.
  * \param write A boolean variable which indicates if the file is to
  *   opened for writing. If there is an existing file it needs to truncated.
  *
  * Dart_FileReadCallback - Read contents of file.
@@ skipping 61 matching lines @@
  *   otherwise. The caller is responsible for freeing the error message.
  */
 DART_EXPORT char* Dart_Initialize(
     const uint8_t* vm_isolate_snapshot,
     const uint8_t* instructions_snapshot,
     const uint8_t* data_snapshot,
     Dart_IsolateCreateCallback create,
     Dart_IsolateInterruptCallback interrupt,
     Dart_IsolateUnhandledExceptionCallback unhandled_exception,
     Dart_IsolateShutdownCallback shutdown,
+    Dart_ThreadExitCallback thread_exit,
     Dart_FileOpenCallback file_open,
     Dart_FileReadCallback file_read,
     Dart_FileWriteCallback file_write,
     Dart_FileCloseCallback file_close,
     Dart_EntropySource entropy_source,
     Dart_GetVMServiceAssetsArchive get_service_assets);
 
 /**
  * Cleanup state in the VM before process termination.
  *
@@ skipping 2136 matching lines @@
     intptr_t* vm_isolate_snapshot_size,
     uint8_t** isolate_snapshot_buffer,
     intptr_t* isolate_snapshot_size,
     uint8_t** instructions_snapshot_buffer,
     intptr_t* instructions_snapshot_size);
 
 
 DART_EXPORT bool Dart_IsRunningPrecompiledCode();
 
 #endif  /* INCLUDE_DART_API_H_ */  /* NOLINT */