初始化仓库

Linux_Hello/lib/libuv-v1.51.0/test/test-loop-oom.c

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+/* Copyright libuv contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "task.h"
+#include <stdlib.h>
+#include <string.h>
+
+static int limit;
+static int alloc;
+
+static void* t_realloc(void* p, size_t n) {
+  alloc += n;
+  if (alloc > limit)
+    return NULL;
+  p = realloc(p, n);
+  ASSERT_NOT_NULL(p);
+  return p;
+}
+
+static void* t_calloc(size_t m, size_t n) {
+  return t_realloc(NULL, m * n);
+}
+
+static void* t_malloc(size_t n) {
+  return t_realloc(NULL, n);
+}
+
+TEST_IMPL(loop_init_oom) {
+  uv_loop_t loop;
+  int err;
+
+  ASSERT_OK(uv_replace_allocator(t_malloc, t_realloc, t_calloc, free));
+  for (;;) {
+    err = uv_loop_init(&loop);
+    if (err == 0)
+      break;
+    ASSERT_EQ(err, UV_ENOMEM);
+    limit += 8;
+    alloc = 0;
+  }
+  ASSERT_OK(uv_loop_close(&loop));
+  return 0;
+}