Robert Schmidt
74bc9bf0cc
stdatomic.h is a C++23 feature [1]. Thus, "older" compilers such as
gcc-11 (default in Ubuntu 22) do not know this, and can therefore not
correctly compile spsc_q. Fix this by alternatively including atomic for
C++.
Fixes errors such as
stdatomic.h:40:9: error: ‘_Atomic’ does not name a type
[1] https://en.cppreference.com/cpp/header/stdatomic.h
Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>
40 lines
942 B
C++
40 lines
942 B
C++
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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#ifndef SPSC_Q_H_
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#define SPSC_Q_H_
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#include <stdint.h>
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#include <stdbool.h>
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#if defined(__cplusplus)
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#include <atomic>
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// use atomic_size_t to help interworking with C++
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using std::atomic_size_t;
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#else
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#include <stdatomic.h>
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#endif
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typedef struct spsc_q {
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uint8_t *buf;
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size_t elsiz;
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size_t cnt;
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atomic_size_t write_idx;
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atomic_size_t read_idx;
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} spsc_q_t;
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spsc_q_t spsc_q_alloc(size_t cnt, size_t elsiz);
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void spsc_q_free(spsc_q_t *rb);
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bool spsc_q_put(spsc_q_t *rb, const void *src, size_t elsiz);
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bool spsc_q_get(spsc_q_t *rb, void *dest, size_t elsiz);
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typedef bool (*pred)(const void *data, void *user);
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bool spsc_q_get_if(spsc_q_t *rb, pred p, void *user, void *dest, size_t elsiz);
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int spsc_q_drop_while(spsc_q_t *rb, pred p, void *user);
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int spsc_q_get_while(spsc_q_t *rb, pred p, void *user, void *dest, size_t elsiz, size_t max_len);
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#endif /* SPSC_Q_H_ */
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