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diff --git a/src/redisassert.c b/src/redisassert.c
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+/* redisassert.c -- Implement the default _serverAssert and _serverPanic which
+ * simply print stack trace to standard error stream.
+ *
+ * This file is shared by those modules that try to print some logs about stack trace
+ * but don't have their own implementations of functions in redisassert.h.
+ *
+ * ----------------------------------------------------------------------------
+ *
+ * Copyright (c) 2021, Andy Pan <panjf2000@gmail.com> and Redis Labs
+ * 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.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+
+void _serverAssert(const char *estr, const char *file, int line) {
+ fprintf(stderr, "=== ASSERTION FAILED ===");
+ fprintf(stderr, "==> %s:%d '%s' is not true",file,line,estr);
+ raise(SIGSEGV);
+}
+
+void _serverPanic(const char *file, int line, const char *msg, ...) {
+ fprintf(stderr, "------------------------------------------------");
+ fprintf(stderr, "!!! Software Failure. Press left mouse button to continue");
+ fprintf(stderr, "Guru Meditation: %s #%s:%d",msg,file,line);
+ abort();
+}