Safe allocation wrappers (#754)

Create allocation wrappers with a configurable OOM handler (defaults to abort()).

See #752, #747

1 files changed, 44 insertions, 0 deletions

diff --git a/alloc.h b/alloc.h
new file mode 100644
index 0000000..803129c
--- /dev/null
+++ b/alloc.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2020, Michael Grunder <michael dot grunder at gmail dot com>
+ *
+ * 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 Redis 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 HIREDIS_ALLOC_H
+
+#include <stdlib.h> /* for size_t */
+
+#ifndef HIREDIS_OOM_HANDLER
+#define HIREDIS_OOM_HANDLER abort()
+#endif
+
+void *hi_malloc(size_t size);
+void *hi_calloc(size_t nmemb, size_t size);
+void *hi_realloc(void *ptr, size_t size);
+char *hi_strdup(const char *str);
+
+#endif  /* HIREDIS_ALLOC_H */