Adding upstream version 1.44.3.upstream/1.44.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 311 insertions, 0 deletions

diff --git a/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_topic.h b/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_topic.h
new file mode 100644
index 00000000..cbed9308
--- /dev/null
+++ b/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_topic.h
@@ -0,0 +1,311 @@
+/*
+ * librdkafka - Apache Kafka C library
+ *
+ * Copyright (c) 2012,2013 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 _RDKAFKA_TOPIC_H_
+#define _RDKAFKA_TOPIC_H_
+
+#include "rdlist.h"
+
+extern const char *rd_kafka_topic_state_names[];
+
+
+/**
+ * @struct Light-weight topic object which only contains the topic name.
+ *
+ * For use in outgoing APIs (like rd_kafka_message_t) when there is
+ * no proper topic object available.
+ *
+ * @remark lrkt_magic[4] MUST be the first field and be set to "LRKT".
+ */
+struct rd_kafka_lwtopic_s {
+        char lrkt_magic[4];      /**< "LRKT" */
+        rd_kafka_t *lrkt_rk;     /**< Pointer to the client instance. */
+        rd_refcnt_t lrkt_refcnt; /**< Refcount */
+        char *lrkt_topic;        /**< Points past this struct, allocated
+                                  *   along with the struct. */
+};
+
+/** Casts a topic_t to a light-weight lwtopic_t */
+#define rd_kafka_rkt_lw(rkt) ((rd_kafka_lwtopic_t *)rkt)
+
+#define rd_kafka_rkt_lw_const(rkt) ((const rd_kafka_lwtopic_t *)rkt)
+
+/**
+ * @returns true if the topic object is a light-weight topic, else false.
+ */
+static RD_UNUSED RD_INLINE rd_bool_t
+rd_kafka_rkt_is_lw(const rd_kafka_topic_t *app_rkt) {
+        const rd_kafka_lwtopic_t *lrkt = rd_kafka_rkt_lw_const(app_rkt);
+        return !memcmp(lrkt->lrkt_magic, "LRKT", 4);
+}
+
+/** @returns the lwtopic_t if \p rkt is a light-weight topic, else NULL. */
+static RD_UNUSED RD_INLINE rd_kafka_lwtopic_t *
+rd_kafka_rkt_get_lw(rd_kafka_topic_t *rkt) {
+        if (rd_kafka_rkt_is_lw(rkt))
+                return rd_kafka_rkt_lw(rkt);
+        return NULL;
+}
+
+void rd_kafka_lwtopic_destroy(rd_kafka_lwtopic_t *lrkt);
+rd_kafka_lwtopic_t *rd_kafka_lwtopic_new(rd_kafka_t *rk, const char *topic);
+
+static RD_UNUSED RD_INLINE void
+rd_kafka_lwtopic_keep(rd_kafka_lwtopic_t *lrkt) {
+        rd_refcnt_add(&lrkt->lrkt_refcnt);
+}
+
+
+
+/**
+ * @struct Holds partition + transactional PID + base sequence msgid.
+ *
+ * Used in rkt_saved_partmsgids to restore transactional/idempotency state
+ * for a partition that is lost from metadata for some time and then returns.
+ */
+typedef struct rd_kafka_partition_msgid_s {
+        TAILQ_ENTRY(rd_kafka_partition_msgid_s) link;
+        int32_t partition;
+        rd_kafka_pid_t pid;
+        uint64_t msgid;
+        uint64_t epoch_base_msgid;
+        rd_ts_t ts;
+} rd_kafka_partition_msgid_t;
+
+
+/**
+ * @struct Aux struct that holds a partition id and a leader epoch.
+ *         Used as temporary holding space for per-partition leader epochs
+ *         while parsing MetadataResponse.
+ */
+typedef struct rd_kafka_partition_leader_epoch_s {
+        int32_t partition_id;
+        int32_t leader_epoch;
+} rd_kafka_partition_leader_epoch_t;
+
+
+/*
+ * @struct Internal representation of a topic.
+ *
+ * @remark rkt_magic[4] MUST be the first field and be set to "IRKT".
+ */
+struct rd_kafka_topic_s {
+        char rkt_magic[4]; /**< "IRKT" */
+
+        TAILQ_ENTRY(rd_kafka_topic_s) rkt_link;
+
+        rd_refcnt_t rkt_refcnt;
+
+        rwlock_t rkt_lock;
+        rd_kafkap_str_t *rkt_topic;
+
+        rd_kafka_toppar_t *rkt_ua; /**< Unassigned partition (-1) */
+        rd_kafka_toppar_t **rkt_p; /**< Partition array */
+        int32_t rkt_partition_cnt;
+
+        int32_t rkt_sticky_partition;   /**< Current sticky partition.
+                                         *     @locks rkt_lock */
+        rd_interval_t rkt_sticky_intvl; /**< Interval to assign new
+                                         *   sticky partition. */
+
+        rd_list_t rkt_desp;                   /* Desired partitions
+                                               * that are not yet seen
+                                               * in the cluster. */
+        rd_interval_t rkt_desp_refresh_intvl; /**< Rate-limiter for
+                                               *   desired partition
+                                               *   metadata refresh. */
+
+        rd_ts_t rkt_ts_create;   /**< Topic object creation time. */
+        rd_ts_t rkt_ts_metadata; /* Timestamp of last metadata
+                                  * update for this topic. */
+
+        rd_refcnt_t rkt_app_refcnt; /**< Number of active rkt's new()ed
+                                     *   by application. */
+
+        enum { RD_KAFKA_TOPIC_S_UNKNOWN,   /* No cluster information yet */
+               RD_KAFKA_TOPIC_S_EXISTS,    /* Topic exists in cluster */
+               RD_KAFKA_TOPIC_S_NOTEXISTS, /* Topic is not known in cluster */
+               RD_KAFKA_TOPIC_S_ERROR,     /* Topic exists but is in an errored
+                                            * state, such as auth failure. */
+        } rkt_state;
+
+        int rkt_flags;
+#define RD_KAFKA_TOPIC_F_LEADER_UNAVAIL                                        \
+        0x1 /* Leader lost/unavailable                                         \
+             * for at least one partition. */
+
+        rd_kafka_resp_err_t rkt_err; /**< Permanent error. */
+
+        rd_kafka_t *rkt_rk;
+
+        rd_avg_t rkt_avg_batchsize; /**< Average batch size */
+        rd_avg_t rkt_avg_batchcnt;  /**< Average batch message count */
+
+        rd_kafka_topic_conf_t rkt_conf;
+
+        /** Idempotent/Txn producer:
+         *  The PID,Epoch,base Msgid state for removed partitions. */
+        TAILQ_HEAD(, rd_kafka_partition_msgid_s) rkt_saved_partmsgids;
+};
+
+#define rd_kafka_topic_rdlock(rkt)   rwlock_rdlock(&(rkt)->rkt_lock)
+#define rd_kafka_topic_wrlock(rkt)   rwlock_wrlock(&(rkt)->rkt_lock)
+#define rd_kafka_topic_rdunlock(rkt) rwlock_rdunlock(&(rkt)->rkt_lock)
+#define rd_kafka_topic_wrunlock(rkt) rwlock_wrunlock(&(rkt)->rkt_lock)
+
+
+
+/**
+ * @brief Increase refcount and return topic object.
+ */
+static RD_INLINE RD_UNUSED rd_kafka_topic_t *
+rd_kafka_topic_keep(rd_kafka_topic_t *rkt) {
+        rd_kafka_lwtopic_t *lrkt;
+        if (unlikely((lrkt = rd_kafka_rkt_get_lw(rkt)) != NULL))
+                rd_kafka_lwtopic_keep(lrkt);
+        else
+                rd_refcnt_add(&rkt->rkt_refcnt);
+        return rkt;
+}
+
+void rd_kafka_topic_destroy_final(rd_kafka_topic_t *rkt);
+
+rd_kafka_topic_t *rd_kafka_topic_proper(rd_kafka_topic_t *app_rkt);
+
+
+
+/**
+ * @brief Loose reference to topic object as increased by ..topic_keep().
+ */
+static RD_INLINE RD_UNUSED void rd_kafka_topic_destroy0(rd_kafka_topic_t *rkt) {
+        rd_kafka_lwtopic_t *lrkt;
+        if (unlikely((lrkt = rd_kafka_rkt_get_lw(rkt)) != NULL))
+                rd_kafka_lwtopic_destroy(lrkt);
+        else if (unlikely(rd_refcnt_sub(&rkt->rkt_refcnt) == 0))
+                rd_kafka_topic_destroy_final(rkt);
+}
+
+
+rd_kafka_topic_t *rd_kafka_topic_new0(rd_kafka_t *rk,
+                                      const char *topic,
+                                      rd_kafka_topic_conf_t *conf,
+                                      int *existing,
+                                      int do_lock);
+
+rd_kafka_topic_t *rd_kafka_topic_find_fl(const char *func,
+                                         int line,
+                                         rd_kafka_t *rk,
+                                         const char *topic,
+                                         int do_lock);
+rd_kafka_topic_t *rd_kafka_topic_find0_fl(const char *func,
+                                          int line,
+                                          rd_kafka_t *rk,
+                                          const rd_kafkap_str_t *topic);
+#define rd_kafka_topic_find(rk, topic, do_lock)                                \
+        rd_kafka_topic_find_fl(__FUNCTION__, __LINE__, rk, topic, do_lock)
+#define rd_kafka_topic_find0(rk, topic)                                        \
+        rd_kafka_topic_find0_fl(__FUNCTION__, __LINE__, rk, topic)
+int rd_kafka_topic_cmp_rkt(const void *_a, const void *_b);
+
+void rd_kafka_topic_partitions_remove(rd_kafka_topic_t *rkt);
+
+rd_bool_t rd_kafka_topic_set_notexists(rd_kafka_topic_t *rkt,
+                                       rd_kafka_resp_err_t err);
+rd_bool_t rd_kafka_topic_set_error(rd_kafka_topic_t *rkt,
+                                   rd_kafka_resp_err_t err);
+
+/**
+ * @returns the topic's permanent error, if any.
+ *
+ * @locality any
+ * @locks_acquired rd_kafka_topic_rdlock(rkt)
+ */
+static RD_INLINE RD_UNUSED rd_kafka_resp_err_t
+rd_kafka_topic_get_error(rd_kafka_topic_t *rkt) {
+        rd_kafka_resp_err_t err = RD_KAFKA_RESP_ERR_NO_ERROR;
+        rd_kafka_topic_rdlock(rkt);
+        if (rkt->rkt_state == RD_KAFKA_TOPIC_S_ERROR)
+                err = rkt->rkt_err;
+        rd_kafka_topic_rdunlock(rkt);
+        return err;
+}
+
+int rd_kafka_topic_metadata_update2(
+    rd_kafka_broker_t *rkb,
+    const struct rd_kafka_metadata_topic *mdt,
+    const rd_kafka_partition_leader_epoch_t *leader_epochs);
+
+void rd_kafka_topic_scan_all(rd_kafka_t *rk, rd_ts_t now);
+
+
+typedef struct rd_kafka_topic_info_s {
+        const char *topic; /**< Allocated along with struct */
+        int partition_cnt;
+} rd_kafka_topic_info_t;
+
+int rd_kafka_topic_info_topic_cmp(const void *_a, const void *_b);
+int rd_kafka_topic_info_cmp(const void *_a, const void *_b);
+rd_kafka_topic_info_t *rd_kafka_topic_info_new(const char *topic,
+                                               int partition_cnt);
+void rd_kafka_topic_info_destroy(rd_kafka_topic_info_t *ti);
+
+int rd_kafka_topic_match(rd_kafka_t *rk,
+                         const char *pattern,
+                         const char *topic);
+
+int rd_kafka_toppar_broker_update(rd_kafka_toppar_t *rktp,
+                                  int32_t broker_id,
+                                  rd_kafka_broker_t *rkb,
+                                  const char *reason);
+
+int rd_kafka_toppar_delegate_to_leader(rd_kafka_toppar_t *rktp);
+
+rd_kafka_resp_err_t rd_kafka_topics_leader_query_sync(rd_kafka_t *rk,
+                                                      int all_topics,
+                                                      const rd_list_t *topics,
+                                                      int timeout_ms);
+void rd_kafka_topic_leader_query0(rd_kafka_t *rk,
+                                  rd_kafka_topic_t *rkt,
+                                  int do_rk_lock,
+                                  rd_bool_t force);
+#define rd_kafka_topic_leader_query(rk, rkt)                                   \
+        rd_kafka_topic_leader_query0(rk, rkt, 1 /*lock*/,                      \
+                                     rd_false /*dont force*/)
+
+#define rd_kafka_topic_fast_leader_query(rk)                                   \
+        rd_kafka_metadata_fast_leader_query(rk)
+
+void rd_kafka_local_topics_to_list(rd_kafka_t *rk,
+                                   rd_list_t *topics,
+                                   int *cache_cntp);
+
+void rd_ut_kafka_topic_set_topic_exists(rd_kafka_topic_t *rkt,
+                                        int partition_cnt,
+                                        int32_t leader_id);
+
+#endif /* _RDKAFKA_TOPIC_H_ */