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Previously, many files had individual main() functions for testing, but each required being compiled with their own testing flags. That gets difficult when you have 8 different flags you need to set just to run all tests (plus, some test files required other files to be compiled aaginst them, and it seems some didn't build at all without including the rest of Redis). Now all individual test main() funcions are renamed to a test function for the file itself and one global REDIS_TEST define enables testing across the entire codebase. Tests can now be run with: - `./redis-server test <test>` e.g. ./redis-server test ziplist If REDIS_TEST is not defined, then no tests get included and no tests are included in the final redis-server binary.
129 lines
3.7 KiB
C
129 lines
3.7 KiB
C
/* endinconv.c -- Endian conversions utilities.
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*
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* This functions are never called directly, but always using the macros
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* defined into endianconv.h, this way we define everything is a non-operation
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* if the arch is already little endian.
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*
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* Redis tries to encode everything as little endian (but a few things that need
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* to be backward compatible are still in big endian) because most of the
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* production environments are little endian, and we have a lot of conversions
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* in a few places because ziplists, intsets, zipmaps, need to be endian-neutral
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* even in memory, since they are serialied on RDB files directly with a single
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* write(2) without other additional steps.
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*
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* ----------------------------------------------------------------------------
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*
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* Copyright (c) 2011-2012, Salvatore Sanfilippo <antirez at gmail dot com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdint.h>
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/* Toggle the 16 bit unsigned integer pointed by *p from little endian to
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* big endian */
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void memrev16(void *p) {
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unsigned char *x = p, t;
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t = x[0];
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x[0] = x[1];
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x[1] = t;
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}
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/* Toggle the 32 bit unsigned integer pointed by *p from little endian to
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* big endian */
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void memrev32(void *p) {
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unsigned char *x = p, t;
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t = x[0];
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x[0] = x[3];
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x[3] = t;
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t = x[1];
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x[1] = x[2];
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x[2] = t;
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}
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/* Toggle the 64 bit unsigned integer pointed by *p from little endian to
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* big endian */
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void memrev64(void *p) {
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unsigned char *x = p, t;
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t = x[0];
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x[0] = x[7];
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x[7] = t;
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t = x[1];
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x[1] = x[6];
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x[6] = t;
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t = x[2];
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x[2] = x[5];
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x[5] = t;
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t = x[3];
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x[3] = x[4];
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x[4] = t;
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}
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uint16_t intrev16(uint16_t v) {
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memrev16(&v);
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return v;
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}
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uint32_t intrev32(uint32_t v) {
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memrev32(&v);
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return v;
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}
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uint64_t intrev64(uint64_t v) {
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memrev64(&v);
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return v;
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}
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#ifdef REDIS_TEST
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#include <stdio.h>
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#define UNUSED(x) (void)(x)
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int endianconvTest(int argc, char *argv[]) {
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char buf[32];
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UNUSED(argc);
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UNUSED(argv);
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sprintf(buf,"ciaoroma");
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memrev16(buf);
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printf("%s\n", buf);
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sprintf(buf,"ciaoroma");
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memrev32(buf);
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printf("%s\n", buf);
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sprintf(buf,"ciaoroma");
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memrev64(buf);
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printf("%s\n", buf);
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return 0;
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}
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#endif
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