/src/fluent-bit/lib/librdkafka-2.8.0/src/rdvarint.h

Source (jump to first uncovered line)
/*
 * librdkafka - The Apache Kafka C/C++ library
 *
 * Copyright (c) 2016-2022, 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.
 */


#ifndef _RDVARINT_H
#define _RDVARINT_H

#include "rd.h"
#include "rdbuf.h"

/**
 * @name signed varint zig-zag encoder/decoder
 * @{
 *
 */

/**
 * @brief unsigned-varint encodes unsigned integer \p num into buffer
 *        at \p dst of size \p dstsize.
 * @returns the number of bytes written to \p dst, or 0 if not enough space.
 */

static RD_INLINE RD_UNUSED size_t rd_uvarint_enc_u64(char *dst,
                                                     size_t dstsize,
                                                     uint64_t num) {
        size_t of = 0;

        do {
                if (unlikely(of >= dstsize))
                        return 0; /* Not enough space */

                dst[of++] = (num & 0x7f) | (num > 0x7f ? 0x80 : 0);
                num >>= 7;
        } while (num);

        return of;
}

/**
 * @brief encodes a signed integer using zig-zag encoding.
 * @sa rd_uvarint_enc_u64
 */
static RD_INLINE RD_UNUSED size_t rd_uvarint_enc_i64(char *dst,
                                                     size_t dstsize,
                                                     int64_t num) {
        return rd_uvarint_enc_u64(dst, dstsize, (num << 1) ^ (num >> 63));
}


static RD_INLINE RD_UNUSED size_t rd_uvarint_enc_i32(char *dst,
                                                     size_t dstsize,
                                                     int32_t num) {
        return rd_uvarint_enc_i64(dst, dstsize, num);
}



/**
 * @brief Use on return value from rd_uvarint_dec() to check if
 *        decoded varint fit the size_t.
 *
 * @returns 1 on overflow, else 0.
 */
#define RD_UVARINT_OVERFLOW(DEC_RETVAL) (DEC_RETVAL > SIZE_MAX)

/**
 * @returns 1 if there were not enough bytes to decode the varint, else 0.
 */
#define RD_UVARINT_UNDERFLOW(DEC_RETVAL) (DEC_RETVAL == 0)


/**
 * @param DEC_RETVAL the return value from \c rd_uvarint_dec()
 * @returns 1 if varint decoding failed, else 0.
 * @warning \p DEC_RETVAL will be evaluated twice.
 */
#define RD_UVARINT_DEC_FAILED(DEC_RETVAL)                                      \
        (RD_UVARINT_UNDERFLOW(DEC_RETVAL) || RD_UVARINT_OVERFLOW(DEC_RETVAL))


/**
 * @brief Decodes the unsigned-varint in buffer \p src of size \p srcsize
 *        and stores the decoded unsigned integer in \p nump.
 *
 * @remark Use RD_UVARINT_OVERFLOW(returnvalue) to check if the varint
 *         could not fit \p nump, and RD_UVARINT_UNDERFLOW(returnvalue) to
 *         check if there were not enough bytes available in \p src to
 *         decode the full varint.
 *
 * @returns the number of bytes read from \p src.
 */
static RD_INLINE RD_UNUSED size_t rd_uvarint_dec(const char *src,
                                                 size_t srcsize,
                                                 uint64_t *nump) {
        size_t of    = 0;
        uint64_t num = 0;
        int shift    = 0;

        do {
                if (unlikely(srcsize-- == 0))
                        return 0; /* Underflow */
                num |= (uint64_t)(src[(int)of] & 0x7f) << shift;
                shift += 7;
        } while (src[(int)of++] & 0x80);

        *nump = num;
        return of;
}

static RD_INLINE RD_UNUSED size_t rd_varint_dec_i64(const char *src,
                                                    size_t srcsize,
                                                    int64_t *nump) {
        uint64_t n;
        size_t r;

        r = rd_uvarint_dec(src, srcsize, &n);
        if (likely(!RD_UVARINT_DEC_FAILED(r)))
                *nump = (int64_t)(n >> 1) ^ -(int64_t)(n & 1);

        return r;
}


/**
 * @returns the maximum encoded size for a type
 */
#define RD_UVARINT_ENC_SIZEOF(TYPE) (sizeof(TYPE) + 1 + (sizeof(TYPE) / 7))

/**
 * @returns the encoding size of the value 0
 */
#define RD_UVARINT_ENC_SIZE_0() ((size_t)1)


int unittest_rdvarint(void);

/**@}*/


#endif /* _RDVARINT_H */

Line	Count	Source (jump to first uncovered line)
1		/*
2		* librdkafka - The Apache Kafka C/C++ library
3		*
4		* Copyright (c) 2016-2022, Magnus Edenhill
5		* All rights reserved.
6		*
7		* Redistribution and use in source and binary forms, with or without
8		* modification, are permitted provided that the following conditions are met:
9		*
10		* 1. Redistributions of source code must retain the above copyright notice,
11		* this list of conditions and the following disclaimer.
12		* 2. Redistributions in binary form must reproduce the above copyright notice,
13		* this list of conditions and the following disclaimer in the documentation
14		* and/or other materials provided with the distribution.
15		*
16		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17		* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19		* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20		* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21		* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22		* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23		* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24		* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25		* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26		* POSSIBILITY OF SUCH DAMAGE.
27		*/
28
29
30		#ifndef _RDVARINT_H
31		#define _RDVARINT_H
32
33		#include "rd.h"
34		#include "rdbuf.h"
35
36		/**
37		* @name signed varint zig-zag encoder/decoder
38		* @{
39		*
40		*/
41
42		/**
43		* @brief unsigned-varint encodes unsigned integer \p num into buffer
44		* at \p dst of size \p dstsize.
45		* @returns the number of bytes written to \p dst, or 0 if not enough space.
46		*/
47
48		static RD_INLINE RD_UNUSED size_t rd_uvarint_enc_u64(char *dst,
49		size_t dstsize,
50	0	uint64_t num) {
51	0	size_t of = 0;
52
53	0	do {
54	0	if (unlikely(of >= dstsize))
55	0	return 0; /* Not enough space */
56
57	0	dst[of++] = (num & 0x7f) \| (num > 0x7f ? 0x80 : 0);
58	0	num >>= 7;
59	0	} while (num);
60
61	0	return of;
62	0	} Unexecuted instantiation: rdkafka.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_assignor.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_broker.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_buf.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_cgrp.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_conf.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_feature.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_metadata.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_metadata_cache.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_msg.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_offset.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_op.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_partition.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_pattern.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_queue.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_range_assignor.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_request.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_roundrobin_assignor.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_sasl.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_sasl_plain.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_sticky_assignor.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_subscription.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_assignment.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_timer.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_topic.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_transport.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_interceptor.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_header.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_admin.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_aux.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_background.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_idempotence.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_txnmgr.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_cert.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_coord.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_mock.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_mock_handlers.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_mock_cgrp.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_error.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_fetcher.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_telemetry.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_telemetry_decode.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_telemetry_encode.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdunittest.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdvarint.c:rd_uvarint_enc_u64 Unexecuted instantiation: snappy.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_ssl.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_plugin.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdavl.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_event.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_lz4.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_msgset_reader.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdkafka_msgset_writer.c:rd_uvarint_enc_u64 Unexecuted instantiation: rdlog.c:rd_uvarint_enc_u64
63
64		/**
65		* @brief encodes a signed integer using zig-zag encoding.
66		* @sa rd_uvarint_enc_u64
67		*/
68		static RD_INLINE RD_UNUSED size_t rd_uvarint_enc_i64(char *dst,
69		size_t dstsize,
70	0	int64_t num) {
71	0	return rd_uvarint_enc_u64(dst, dstsize, (num << 1) ^ (num >> 63));
72	0	} Unexecuted instantiation: rdkafka.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_assignor.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_broker.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_buf.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_cgrp.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_conf.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_feature.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_metadata.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_metadata_cache.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_msg.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_offset.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_op.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_partition.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_pattern.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_queue.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_range_assignor.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_request.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_roundrobin_assignor.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_sasl.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_sasl_plain.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_sticky_assignor.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_subscription.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_assignment.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_timer.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_topic.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_transport.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_interceptor.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_header.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_admin.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_aux.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_background.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_idempotence.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_txnmgr.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_cert.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_coord.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_mock.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_mock_handlers.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_mock_cgrp.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_error.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_fetcher.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_telemetry.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_telemetry_decode.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_telemetry_encode.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdunittest.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdvarint.c:rd_uvarint_enc_i64 Unexecuted instantiation: snappy.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_ssl.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_plugin.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdavl.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_event.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_lz4.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_msgset_reader.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdkafka_msgset_writer.c:rd_uvarint_enc_i64 Unexecuted instantiation: rdlog.c:rd_uvarint_enc_i64
73
74
75		static RD_INLINE RD_UNUSED size_t rd_uvarint_enc_i32(char *dst,
76		size_t dstsize,
77	0	int32_t num) {
78	0	return rd_uvarint_enc_i64(dst, dstsize, num);
79	0	} Unexecuted instantiation: rdkafka.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_assignor.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_broker.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_buf.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_cgrp.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_conf.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_feature.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_metadata.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_metadata_cache.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_msg.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_offset.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_op.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_partition.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_pattern.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_queue.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_range_assignor.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_request.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_roundrobin_assignor.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_sasl.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_sasl_plain.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_sticky_assignor.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_subscription.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_assignment.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_timer.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_topic.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_transport.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_interceptor.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_header.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_admin.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_aux.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_background.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_idempotence.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_txnmgr.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_cert.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_coord.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_mock.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_mock_handlers.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_mock_cgrp.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_error.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_fetcher.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_telemetry.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_telemetry_decode.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_telemetry_encode.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdunittest.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdvarint.c:rd_uvarint_enc_i32 Unexecuted instantiation: snappy.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_ssl.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_plugin.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdavl.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_event.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_lz4.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_msgset_reader.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdkafka_msgset_writer.c:rd_uvarint_enc_i32 Unexecuted instantiation: rdlog.c:rd_uvarint_enc_i32
80
81
82
83		/**
84		* @brief Use on return value from rd_uvarint_dec() to check if
85		* decoded varint fit the size_t.
86		*
87		* @returns 1 on overflow, else 0.
88		*/
89		#define RD_UVARINT_OVERFLOW(DEC_RETVAL) (DEC_RETVAL > SIZE_MAX)
90
91		/**
92		* @returns 1 if there were not enough bytes to decode the varint, else 0.
93		*/
94		#define RD_UVARINT_UNDERFLOW(DEC_RETVAL) (DEC_RETVAL == 0)
95
96
97		/**
98		* @param DEC_RETVAL the return value from \c rd_uvarint_dec()
99		* @returns 1 if varint decoding failed, else 0.
100		* @warning \p DEC_RETVAL will be evaluated twice.
101		*/
102		#define RD_UVARINT_DEC_FAILED(DEC_RETVAL) \
103		(RD_UVARINT_UNDERFLOW(DEC_RETVAL) \|\| RD_UVARINT_OVERFLOW(DEC_RETVAL))
104
105
106		/**
107		* @brief Decodes the unsigned-varint in buffer \p src of size \p srcsize
108		* and stores the decoded unsigned integer in \p nump.
109		*
110		* @remark Use RD_UVARINT_OVERFLOW(returnvalue) to check if the varint
111		* could not fit \p nump, and RD_UVARINT_UNDERFLOW(returnvalue) to
112		* check if there were not enough bytes available in \p src to
113		* decode the full varint.
114		*
115		* @returns the number of bytes read from \p src.
116		*/
117		static RD_INLINE RD_UNUSED size_t rd_uvarint_dec(const char *src,
118		size_t srcsize,
119	0	uint64_t *nump) {
120	0	size_t of = 0;
121	0	uint64_t num = 0;
122	0	int shift = 0;
123
124	0	do {
125	0	if (unlikely(srcsize-- == 0))
126	0	return 0; /* Underflow */
127	0	num \|= (uint64_t)(src[(int)of] & 0x7f) << shift;
128	0	shift += 7;
129	0	} while (src[(int)of++] & 0x80);
130
131	0	*nump = num;
132	0	return of;
133	0	} Unexecuted instantiation: rdkafka.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_assignor.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_broker.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_buf.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_cgrp.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_conf.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_feature.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_metadata.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_metadata_cache.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_msg.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_offset.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_op.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_partition.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_pattern.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_queue.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_range_assignor.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_request.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_roundrobin_assignor.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_sasl.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_sasl_plain.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_sticky_assignor.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_subscription.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_assignment.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_timer.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_topic.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_transport.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_interceptor.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_header.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_admin.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_aux.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_background.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_idempotence.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_txnmgr.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_cert.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_coord.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_mock.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_mock_handlers.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_mock_cgrp.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_error.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_fetcher.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_telemetry.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_telemetry_decode.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_telemetry_encode.c:rd_uvarint_dec Unexecuted instantiation: rdunittest.c:rd_uvarint_dec Unexecuted instantiation: rdvarint.c:rd_uvarint_dec Unexecuted instantiation: snappy.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_ssl.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_plugin.c:rd_uvarint_dec Unexecuted instantiation: rdavl.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_event.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_lz4.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_msgset_reader.c:rd_uvarint_dec Unexecuted instantiation: rdkafka_msgset_writer.c:rd_uvarint_dec Unexecuted instantiation: rdlog.c:rd_uvarint_dec
134
135		static RD_INLINE RD_UNUSED size_t rd_varint_dec_i64(const char *src,
136		size_t srcsize,
137	0	int64_t *nump) {
138	0	uint64_t n;
139	0	size_t r;
140
141	0	r = rd_uvarint_dec(src, srcsize, &n);
142	0	if (likely(!RD_UVARINT_DEC_FAILED(r)))
143	0	*nump = (int64_t)(n >> 1) ^ -(int64_t)(n & 1);
144
145	0	return r;
146	0	} Unexecuted instantiation: rdkafka.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_assignor.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_broker.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_buf.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_cgrp.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_conf.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_feature.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_metadata.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_metadata_cache.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_msg.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_offset.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_op.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_partition.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_pattern.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_queue.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_range_assignor.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_request.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_roundrobin_assignor.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_sasl.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_sasl_plain.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_sticky_assignor.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_subscription.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_assignment.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_timer.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_topic.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_transport.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_interceptor.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_header.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_admin.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_aux.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_background.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_idempotence.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_txnmgr.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_cert.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_coord.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_mock.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_mock_handlers.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_mock_cgrp.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_error.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_fetcher.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_telemetry.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_telemetry_decode.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_telemetry_encode.c:rd_varint_dec_i64 Unexecuted instantiation: rdunittest.c:rd_varint_dec_i64 Unexecuted instantiation: rdvarint.c:rd_varint_dec_i64 Unexecuted instantiation: snappy.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_ssl.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_plugin.c:rd_varint_dec_i64 Unexecuted instantiation: rdavl.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_event.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_lz4.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_msgset_reader.c:rd_varint_dec_i64 Unexecuted instantiation: rdkafka_msgset_writer.c:rd_varint_dec_i64 Unexecuted instantiation: rdlog.c:rd_varint_dec_i64
147
148
149		/**
150		* @returns the maximum encoded size for a type
151		*/
152	0	#define RD_UVARINT_ENC_SIZEOF(TYPE) (sizeof(TYPE) + 1 + (sizeof(TYPE) / 7))
153
154		/**
155		* @returns the encoding size of the value 0
156		*/
157	0	#define RD_UVARINT_ENC_SIZE_0() ((size_t)1)
158
159
160		int unittest_rdvarint(void);
161
162		/*@}/
163
164
165		#endif /* _RDVARINT_H */

Coverage Report

Created: 2025-06-24 08:09