Initial checkin of gRPC to third_party/

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

 /*
- * 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
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
  * copyright notice, this list of conditions and the following disclaimer
  * in the documentation and/or other materials provided with the
  * distribution.
  *     * Neither the name of Google Inc. nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * 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 "core/svg/SVGElement.h"
+#include <stdlib.h>
+#include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
+#include "src/core/profiling/timers.h"
 
-namespace blink {
+static gpr_allocation_functions g_alloc_functions = {malloc, realloc, free};
 
-// 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);
+gpr_allocation_functions gpr_get_allocation_functions() {
+  return g_alloc_functions;
+}
 
-private:
-    SVGUnknownElement(const QualifiedName&, Document&);
+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;
+}
 
-    bool layoutObjectIsNeeded(const ComputedStyle&) override { return false; }
-};
+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;
+}
 
-} // namespace blink
+void gpr_free(void *p) {
+  GPR_TIMER_BEGIN("gpr_free", 0);
+  g_alloc_functions.free_fn(p);
+  GPR_TIMER_END("gpr_free", 0);
+}
 
-#endif // SVGUnknownElement_h
+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;
+}
+
+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;
+}
+
+void gpr_free_aligned(void *ptr) { free(((void **)ptr)[-1]); }