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Diffstat (limited to '')
| -rw-r--r-- | fluent-bit/lib/librdkafka-2.1.0/src/rdvarint.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/fluent-bit/lib/librdkafka-2.1.0/src/rdvarint.c b/fluent-bit/lib/librdkafka-2.1.0/src/rdvarint.c new file mode 100644 index 00000000..fb0cbd04 --- /dev/null +++ b/fluent-bit/lib/librdkafka-2.1.0/src/rdvarint.c @@ -0,0 +1,134 @@ +/* + * librdkafka - The Apache Kafka C/C++ library + * + * Copyright (c) 2016 Magnus Edenhill + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. 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. + * + * 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 "rdvarint.h" +#include "rdunittest.h" + + +static int do_test_rd_uvarint_enc_i64(const char *file, + int line, + int64_t num, + const char *exp, + size_t exp_size) { + char buf[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + size_t sz = rd_uvarint_enc_i64(buf, sizeof(buf), num); + size_t r; + int ir; + rd_buf_t b; + rd_slice_t slice, bad_slice; + int64_t ret_num; + + if (sz != exp_size || memcmp(buf, exp, exp_size)) + RD_UT_FAIL("i64 encode of %" PRId64 + ": " + "expected size %" PRIusz " (got %" PRIusz ")\n", + num, exp_size, sz); + + /* Verify with standard decoder */ + r = rd_varint_dec_i64(buf, sz, &ret_num); + RD_UT_ASSERT(!RD_UVARINT_DEC_FAILED(r), + "varint decode failed: %" PRIusz, r); + RD_UT_ASSERT(ret_num == num, + "varint decode returned wrong number: " + "%" PRId64 " != %" PRId64, + ret_num, num); + + /* Verify with slice decoder */ + rd_buf_init(&b, 1, 0); + rd_buf_push(&b, buf, sizeof(buf), NULL); /* including trailing 0xff + * garbage which should be + * ignored by decoder */ + rd_slice_init_full(&slice, &b); + + /* Should fail for incomplete reads */ + ir = rd_slice_narrow_copy(&slice, &bad_slice, sz - 1); + RD_UT_ASSERT(ir, "narrow_copy failed"); + ret_num = -1; + r = rd_slice_read_varint(&bad_slice, &ret_num); + RD_UT_ASSERT(RD_UVARINT_DEC_FAILED(r), + "varint decode failed should have failed, " + "returned %" PRIusz, + r); + r = rd_slice_offset(&bad_slice); + RD_UT_ASSERT(r == 0, + "expected slice position to not change, but got %" PRIusz, + r); + + /* Verify proper slice */ + ret_num = -1; + r = rd_slice_read_varint(&slice, &ret_num); + RD_UT_ASSERT(!RD_UVARINT_DEC_FAILED(r), + "varint decode failed: %" PRIusz, r); + RD_UT_ASSERT(ret_num == num, + "varint decode returned wrong number: " + "%" PRId64 " != %" PRId64, + ret_num, num); + RD_UT_ASSERT(r == sz, + "expected varint decoder to read %" PRIusz + " bytes, " + "not %" PRIusz, + sz, r); + r = rd_slice_offset(&slice); + RD_UT_ASSERT(r == sz, + "expected slice position to change to %" PRIusz + ", but got %" PRIusz, + sz, r); + + + rd_buf_destroy(&b); + + RD_UT_PASS(); +} + + +int unittest_rdvarint(void) { + int fails = 0; + + fails += do_test_rd_uvarint_enc_i64(__FILE__, __LINE__, 0, + (const char[]) {0}, 1); + fails += do_test_rd_uvarint_enc_i64(__FILE__, __LINE__, 1, + (const char[]) {0x2}, 1); + fails += do_test_rd_uvarint_enc_i64(__FILE__, __LINE__, -1, + (const char[]) {0x1}, 1); + fails += do_test_rd_uvarint_enc_i64(__FILE__, __LINE__, 23, + (const char[]) {0x2e}, 1); + fails += do_test_rd_uvarint_enc_i64(__FILE__, __LINE__, -23, + (const char[]) {0x2d}, 1); + fails += do_test_rd_uvarint_enc_i64(__FILE__, __LINE__, 253, + (const char[]) {0xfa, 3}, 2); + fails += do_test_rd_uvarint_enc_i64( + __FILE__, __LINE__, 1234567890101112, + (const char[]) {0xf0, 0x8d, 0xd3, 0xc8, 0xa7, 0xb5, 0xb1, 0x04}, 8); + fails += do_test_rd_uvarint_enc_i64( + __FILE__, __LINE__, -1234567890101112, + (const char[]) {0xef, 0x8d, 0xd3, 0xc8, 0xa7, 0xb5, 0xb1, 0x04}, 8); + + return fails; +} |