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Diffstat (limited to 'fluent-bit/lib/librdkafka-2.1.0/src/rdinterval.h')
| -rw-r--r-- | fluent-bit/lib/librdkafka-2.1.0/src/rdinterval.h | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/fluent-bit/lib/librdkafka-2.1.0/src/rdinterval.h b/fluent-bit/lib/librdkafka-2.1.0/src/rdinterval.h deleted file mode 100644 index 428337646..000000000 --- a/fluent-bit/lib/librdkafka-2.1.0/src/rdinterval.h +++ /dev/null @@ -1,159 +0,0 @@ -/* - * librdkafka - Apache Kafka C library - * - * Copyright (c) 2018 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 _RDINTERVAL_H_ -#define _RDINTERVAL_H_ - -#include "rd.h" - -typedef struct rd_interval_s { - rd_ts_t ri_ts_last; /* last interval timestamp */ - rd_ts_t ri_fixed; /* fixed interval if provided interval is 0 */ - int ri_backoff; /* back off the next interval by this much */ -} rd_interval_t; - - -static RD_INLINE RD_UNUSED void rd_interval_init(rd_interval_t *ri) { - memset(ri, 0, sizeof(*ri)); -} - - - -/** - * Returns the number of microseconds the interval has been over-shot. - * If the return value is >0 (i.e., time for next intervalled something) then - * the time interval is updated to the current time. - * - * The current time can be provided in 'now', or if this is set to 0 the time - * will be gathered automatically. - * - * If 'interval_us' is set to 0 the fixed interval will be used, see - * 'rd_interval_fixed()'. - * - * If this is the first time rd_interval() is called after an _init() or - * _reset() or the \p immediate parameter is true, then a positive value - * will be returned immediately even though the initial interval has not - * passed. - */ -#define rd_interval(ri, interval_us, now) rd_interval0(ri, interval_us, now, 0) -#define rd_interval_immediate(ri, interval_us, now) \ - rd_interval0(ri, interval_us, now, 1) -static RD_INLINE RD_UNUSED rd_ts_t rd_interval0(rd_interval_t *ri, - rd_ts_t interval_us, - rd_ts_t now, - int immediate) { - rd_ts_t diff; - - if (!now) - now = rd_clock(); - if (!interval_us) - interval_us = ri->ri_fixed; - - if (ri->ri_ts_last || !immediate) { - diff = now - (ri->ri_ts_last + interval_us + ri->ri_backoff); - } else - diff = 1; - if (unlikely(diff > 0)) { - ri->ri_ts_last = now; - ri->ri_backoff = 0; - } - - return diff; -} - - -/** - * Reset the interval to zero, i.e., the next call to rd_interval() - * will be immediate. - */ -static RD_INLINE RD_UNUSED void rd_interval_reset(rd_interval_t *ri) { - ri->ri_ts_last = 0; - ri->ri_backoff = 0; -} - -/** - * Reset the interval to 'now'. If now is 0, the time will be gathered - * automatically. - */ -static RD_INLINE RD_UNUSED void rd_interval_reset_to_now(rd_interval_t *ri, - rd_ts_t now) { - if (!now) - now = rd_clock(); - - ri->ri_ts_last = now; - ri->ri_backoff = 0; -} - -/** - * Back off the next interval by `backoff_us` microseconds. - */ -static RD_INLINE RD_UNUSED void rd_interval_backoff(rd_interval_t *ri, - int backoff_us) { - ri->ri_backoff = backoff_us; -} - -/** - * Expedite (speed up) the next interval by `expedite_us` microseconds. - * If `expedite_us` is 0 the interval will be set to trigger - * immedately on the next rd_interval() call. - */ -static RD_INLINE RD_UNUSED void rd_interval_expedite(rd_interval_t *ri, - int expedite_us) { - if (!expedite_us) - ri->ri_ts_last = 0; - else - ri->ri_backoff = -expedite_us; -} - -/** - * Specifies a fixed interval to use if rd_interval() is called with - * `interval_us` set to 0. - */ -static RD_INLINE RD_UNUSED void rd_interval_fixed(rd_interval_t *ri, - rd_ts_t fixed_us) { - ri->ri_fixed = fixed_us; -} - -/** - * Disables the interval (until rd_interval_init()/reset() is called). - * A disabled interval will never return a positive value from - * rd_interval(). - */ -static RD_INLINE RD_UNUSED void rd_interval_disable(rd_interval_t *ri) { - /* Set last beat to a large value a long time in the future. */ - ri->ri_ts_last = 6000000000000000000LL; /* in about 190000 years */ -} - -/** - * Returns true if the interval is disabled. - */ -static RD_INLINE RD_UNUSED int rd_interval_disabled(const rd_interval_t *ri) { - return ri->ri_ts_last == 6000000000000000000LL; -} - -#endif /* _RDINTERVAL_H_ */ |