Initial checkin of gRPC to third_party/

third_party/grpc/src/core/support/alloc.c

Index: third_party/grpc/src/core/support/alloc.c
diff --git a/third_party/WebKit/Source/core/svg/SVGUnknownElement.h b/third_party/grpc/src/core/support/alloc.c
similarity index 51%
copy from third_party/WebKit/Source/core/svg/SVGUnknownElement.h
copy to third_party/grpc/src/core/support/alloc.c
index 45ff8961916901817bc5dbe55c519f6cdbfe53af..0a064b2c188b37c18606df2400602905572c7cd2 100644
--- a/third_party/WebKit/Source/core/svg/SVGUnknownElement.h
+++ b/third_party/grpc/src/core/support/alloc.c
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2013 Samsung Electronics. All rights reserved.
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -26,31 +28,63 @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
  */
 
-#ifndef SVGUnknownElement_h
-#define SVGUnknownElement_h
+#include <grpc/support/alloc.h>
+
+#include <stdlib.h>
+#include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
+#include "src/core/profiling/timers.h"
+
+static gpr_allocation_functions g_alloc_functions = {malloc, realloc, free};
 
-#include "core/svg/SVGElement.h"
+gpr_allocation_functions gpr_get_allocation_functions() {
+  return g_alloc_functions;
+}
 
-namespace blink {
+void gpr_set_allocation_functions(gpr_allocation_functions functions) {
+  GPR_ASSERT(functions.malloc_fn != NULL);
+  GPR_ASSERT(functions.realloc_fn != NULL);
+  GPR_ASSERT(functions.free_fn != NULL);
+  g_alloc_functions = functions;
+}
 
-// This type is used for 2 kinds of elements:
-// - Unknown Elements in SVG namespace
-// - Registered custom tag elements in SVG namespace (http://www.w3.org/TR/2013/WD-custom-elements-20130514/#registering-custom-elements)
-//
-// The main purpose of this class at the moment is to override layoutObjectIsNeeded() to return
-// false to make sure we don't attempt to layout such elements.
-class SVGUnknownElement final : public SVGElement {
-public:
-    DECLARE_ELEMENT_FACTORY_WITH_TAGNAME(SVGUnknownElement);
+void *gpr_malloc(size_t size) {
+  void *p;
+  GPR_TIMER_BEGIN("gpr_malloc", 0);
+  p = g_alloc_functions.malloc_fn(size);
+  if (!p) {
+    abort();
+  }
+  GPR_TIMER_END("gpr_malloc", 0);
+  return p;
+}
 
-private:
-    SVGUnknownElement(const QualifiedName&, Document&);
+void gpr_free(void *p) {
+  GPR_TIMER_BEGIN("gpr_free", 0);
+  g_alloc_functions.free_fn(p);
+  GPR_TIMER_END("gpr_free", 0);
+}
 
-    bool layoutObjectIsNeeded(const ComputedStyle&) override { return false; }
-};
+void *gpr_realloc(void *p, size_t size) {
+  GPR_TIMER_BEGIN("gpr_realloc", 0);
+  p = g_alloc_functions.realloc_fn(p, size);
+  if (!p) {
+    abort();
+  }
+  GPR_TIMER_END("gpr_realloc", 0);
+  return p;
+}
 
-} // namespace blink
+void *gpr_malloc_aligned(size_t size, size_t alignment_log) {
+  size_t alignment = ((size_t)1) << alignment_log;
+  size_t extra = alignment - 1 + sizeof(void *);
+  void *p = gpr_malloc(size + extra);
+  void **ret = (void **)(((uintptr_t)p + extra) & ~(alignment - 1));
+  ret[-1] = p;
+  return (void *)ret;
+}
 
-#endif // SVGUnknownElement_h
+void gpr_free_aligned(void *ptr) { free(((void **)ptr)[-1]); }