Adding upstream version 1.44.3.upstream/1.44.3upstream

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

1 files changed, 819 insertions, 0 deletions

diff --git a/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_interceptor.c b/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_interceptor.c
new file mode 100644
index 00000000..c962d2d9
--- /dev/null
+++ b/fluent-bit/lib/librdkafka-2.1.0/src/rdkafka_interceptor.c
@@ -0,0 +1,819 @@
+/*
+ * librdkafka - The Apache Kafka C/C++ library
+ *
+ * Copyright (c) 2017 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 "rdkafka_int.h"
+#include "rdkafka_interceptor.h"
+#include "rdstring.h"
+
+/**
+ * @brief Interceptor methodtion/method reference
+ */
+typedef struct rd_kafka_interceptor_method_s {
+        union {
+                rd_kafka_interceptor_f_on_conf_set_t *on_conf_set;
+                rd_kafka_interceptor_f_on_conf_dup_t *on_conf_dup;
+                rd_kafka_interceptor_f_on_conf_destroy_t *on_conf_destroy;
+                rd_kafka_interceptor_f_on_new_t *on_new;
+                rd_kafka_interceptor_f_on_destroy_t *on_destroy;
+                rd_kafka_interceptor_f_on_send_t *on_send;
+                rd_kafka_interceptor_f_on_acknowledgement_t *on_acknowledgement;
+                rd_kafka_interceptor_f_on_consume_t *on_consume;
+                rd_kafka_interceptor_f_on_commit_t *on_commit;
+                rd_kafka_interceptor_f_on_request_sent_t *on_request_sent;
+                rd_kafka_interceptor_f_on_response_received_t
+                    *on_response_received;
+                rd_kafka_interceptor_f_on_thread_start_t *on_thread_start;
+                rd_kafka_interceptor_f_on_thread_exit_t *on_thread_exit;
+                rd_kafka_interceptor_f_on_broker_state_change_t
+                    *on_broker_state_change;
+                void *generic; /* For easy assignment */
+
+        } u;
+        char *ic_name;
+        void *ic_opaque;
+} rd_kafka_interceptor_method_t;
+
+/**
+ * @brief Destroy interceptor methodtion reference
+ */
+static void rd_kafka_interceptor_method_destroy(void *ptr) {
+        rd_kafka_interceptor_method_t *method = ptr;
+        rd_free(method->ic_name);
+        rd_free(method);
+}
+
+
+
+/**
+ * @brief Handle an interceptor on_... methodtion call failures.
+ */
+static RD_INLINE void
+rd_kafka_interceptor_failed(rd_kafka_t *rk,
+                            const rd_kafka_interceptor_method_t *method,
+                            const char *method_name,
+                            rd_kafka_resp_err_t err,
+                            const rd_kafka_message_t *rkmessage,
+                            const char *errstr) {
+
+        /* FIXME: Suppress log messages, eventually */
+        if (rkmessage)
+                rd_kafka_log(
+                    rk, LOG_WARNING, "ICFAIL",
+                    "Interceptor %s failed %s for "
+                    "message on %s [%" PRId32 "] @ %" PRId64 ": %s%s%s",
+                    method->ic_name, method_name,
+                    rd_kafka_topic_name(rkmessage->rkt), rkmessage->partition,
+                    rkmessage->offset, rd_kafka_err2str(err),
+                    errstr ? ": " : "", errstr ? errstr : "");
+        else
+                rd_kafka_log(rk, LOG_WARNING, "ICFAIL",
+                             "Interceptor %s failed %s: %s%s%s",
+                             method->ic_name, method_name,
+                             rd_kafka_err2str(err), errstr ? ": " : "",
+                             errstr ? errstr : "");
+}
+
+
+
+/**
+ * @brief Create interceptor method reference.
+ *        Duplicates are rejected
+ */
+static rd_kafka_interceptor_method_t *
+rd_kafka_interceptor_method_new(const char *ic_name,
+                                void *func,
+                                void *ic_opaque) {
+        rd_kafka_interceptor_method_t *method;
+
+        method            = rd_calloc(1, sizeof(*method));
+        method->ic_name   = rd_strdup(ic_name);
+        method->ic_opaque = ic_opaque;
+        method->u.generic = func;
+
+        return method;
+}
+
+
+/**
+ * @brief Method comparator to be used for finding, not sorting.
+ */
+static int rd_kafka_interceptor_method_cmp(const void *_a, const void *_b) {
+        const rd_kafka_interceptor_method_t *a = _a, *b = _b;
+
+        if (a->u.generic != b->u.generic)
+                return -1;
+
+        return strcmp(a->ic_name, b->ic_name);
+}
+
+/**
+ * @brief Add interceptor method reference
+ */
+static rd_kafka_resp_err_t rd_kafka_interceptor_method_add(rd_list_t *list,
+                                                           const char *ic_name,
+                                                           void *func,
+                                                           void *ic_opaque) {
+        rd_kafka_interceptor_method_t *method;
+        const rd_kafka_interceptor_method_t skel = {.ic_name = (char *)ic_name,
+                                                    .u = {.generic = func}};
+
+        /* Reject same method from same interceptor.
+         * This is needed to avoid duplicate interceptors when configuration
+         * objects are duplicated.
+         * An exception is made for lists with _F_UNIQUE, which is currently
+         * only on_conf_destroy() to allow interceptor cleanup. */
+        if ((list->rl_flags & RD_LIST_F_UNIQUE) &&
+            rd_list_find(list, &skel, rd_kafka_interceptor_method_cmp))
+                return RD_KAFKA_RESP_ERR__CONFLICT;
+
+        method = rd_kafka_interceptor_method_new(ic_name, func, ic_opaque);
+        rd_list_add(list, method);
+
+        return RD_KAFKA_RESP_ERR_NO_ERROR;
+}
+
+/**
+ * @brief Destroy all interceptors
+ * @locality application thread calling rd_kafka_conf_destroy() or
+ *           rd_kafka_destroy()
+ */
+void rd_kafka_interceptors_destroy(rd_kafka_conf_t *conf) {
+        rd_list_destroy(&conf->interceptors.on_conf_set);
+        rd_list_destroy(&conf->interceptors.on_conf_dup);
+        rd_list_destroy(&conf->interceptors.on_conf_destroy);
+        rd_list_destroy(&conf->interceptors.on_new);
+        rd_list_destroy(&conf->interceptors.on_destroy);
+        rd_list_destroy(&conf->interceptors.on_send);
+        rd_list_destroy(&conf->interceptors.on_acknowledgement);
+        rd_list_destroy(&conf->interceptors.on_consume);
+        rd_list_destroy(&conf->interceptors.on_commit);
+        rd_list_destroy(&conf->interceptors.on_request_sent);
+        rd_list_destroy(&conf->interceptors.on_response_received);
+        rd_list_destroy(&conf->interceptors.on_thread_start);
+        rd_list_destroy(&conf->interceptors.on_thread_exit);
+        rd_list_destroy(&conf->interceptors.on_broker_state_change);
+
+        /* Interceptor config */
+        rd_list_destroy(&conf->interceptors.config);
+}
+
+
+/**
+ * @brief Initialize interceptor sub-system for config object.
+ * @locality application thread
+ */
+static void rd_kafka_interceptors_init(rd_kafka_conf_t *conf) {
+        rd_list_init(&conf->interceptors.on_conf_set, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_conf_dup, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        /* conf_destroy() allows duplicates entries. */
+        rd_list_init(&conf->interceptors.on_conf_destroy, 0,
+                     rd_kafka_interceptor_method_destroy);
+        rd_list_init(&conf->interceptors.on_new, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_destroy, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_send, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_acknowledgement, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_consume, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_commit, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_request_sent, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_response_received, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_thread_start, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_thread_exit, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+        rd_list_init(&conf->interceptors.on_broker_state_change, 0,
+                     rd_kafka_interceptor_method_destroy)
+            ->rl_flags |= RD_LIST_F_UNIQUE;
+
+        /* Interceptor config */
+        rd_list_init(&conf->interceptors.config, 0,
+                     (void (*)(void *))rd_strtup_destroy);
+}
+
+
+
+/**
+ * @name Configuration backend
+ */
+
+
+/**
+ * @brief Constructor called when configuration object is created.
+ */
+void rd_kafka_conf_interceptor_ctor(int scope, void *pconf) {
+        rd_kafka_conf_t *conf = pconf;
+        assert(scope == _RK_GLOBAL);
+        rd_kafka_interceptors_init(conf);
+}
+
+/**
+ * @brief Destructor called when configuration object is destroyed.
+ */
+void rd_kafka_conf_interceptor_dtor(int scope, void *pconf) {
+        rd_kafka_conf_t *conf = pconf;
+        assert(scope == _RK_GLOBAL);
+        rd_kafka_interceptors_destroy(conf);
+}
+
+/**
+ * @brief Copy-constructor called when configuration object \p psrcp is
+ *        duplicated to \p dstp.
+ * @remark Interceptors are NOT copied, but interceptor config is.
+ *
+ */
+void rd_kafka_conf_interceptor_copy(int scope,
+                                    void *pdst,
+                                    const void *psrc,
+                                    void *dstptr,
+                                    const void *srcptr,
+                                    size_t filter_cnt,
+                                    const char **filter) {
+        rd_kafka_conf_t *dconf       = pdst;
+        const rd_kafka_conf_t *sconf = psrc;
+        int i;
+        const rd_strtup_t *confval;
+
+        assert(scope == _RK_GLOBAL);
+
+        /* Apply interceptor configuration values.
+         * on_conf_dup() has already been called for dconf so
+         * on_conf_set() interceptors are already in place and we can
+         * apply the configuration through the standard conf_set() API. */
+        RD_LIST_FOREACH(confval, &sconf->interceptors.config, i) {
+                size_t fi;
+                size_t nlen = strlen(confval->name);
+
+                /* Apply filter */
+                for (fi = 0; fi < filter_cnt; fi++) {
+                        size_t flen = strlen(filter[fi]);
+                        if (nlen >= flen &&
+                            !strncmp(filter[fi], confval->name, flen))
+                                break;
+                }
+
+                if (fi < filter_cnt)
+                        continue; /* Filter matched: ignore property. */
+
+                /* Ignore errors for now */
+                rd_kafka_conf_set(dconf, confval->name, confval->value, NULL,
+                                  0);
+        }
+}
+
+
+
+/**
+ * @brief Call interceptor on_conf_set methods.
+ * @locality application thread calling rd_kafka_conf_set() and
+ *           rd_kafka_conf_dup()
+ */
+rd_kafka_conf_res_t rd_kafka_interceptors_on_conf_set(rd_kafka_conf_t *conf,
+                                                      const char *name,
+                                                      const char *val,
+                                                      char *errstr,
+                                                      size_t errstr_size) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &conf->interceptors.on_conf_set, i) {
+                rd_kafka_conf_res_t res;
+
+                res = method->u.on_conf_set(conf, name, val, errstr,
+                                            errstr_size, method->ic_opaque);
+                if (res == RD_KAFKA_CONF_UNKNOWN)
+                        continue;
+
+                /* Add successfully handled properties to list of
+                 * interceptor config properties so conf_t objects
+                 * can be copied. */
+                if (res == RD_KAFKA_CONF_OK)
+                        rd_list_add(&conf->interceptors.config,
+                                    rd_strtup_new(name, val));
+                return res;
+        }
+
+        return RD_KAFKA_CONF_UNKNOWN;
+}
+
+/**
+ * @brief Call interceptor on_conf_dup methods.
+ * @locality application thread calling rd_kafka_conf_dup()
+ */
+void rd_kafka_interceptors_on_conf_dup(rd_kafka_conf_t *new_conf,
+                                       const rd_kafka_conf_t *old_conf,
+                                       size_t filter_cnt,
+                                       const char **filter) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &old_conf->interceptors.on_conf_dup, i) {
+                /* FIXME: Ignore error for now */
+                method->u.on_conf_dup(new_conf, old_conf, filter_cnt, filter,
+                                      method->ic_opaque);
+        }
+}
+
+
+/**
+ * @brief Call interceptor on_conf_destroy methods.
+ * @locality application thread calling rd_kafka_conf_destroy(), rd_kafka_new(),
+ *           rd_kafka_destroy()
+ */
+void rd_kafka_interceptors_on_conf_destroy(rd_kafka_conf_t *conf) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &conf->interceptors.on_conf_destroy, i) {
+                /* FIXME: Ignore error for now */
+                method->u.on_conf_destroy(method->ic_opaque);
+        }
+}
+
+
+/**
+ * @brief Call interceptor on_new methods.
+ * @locality application thread calling rd_kafka_new()
+ */
+void rd_kafka_interceptors_on_new(rd_kafka_t *rk, const rd_kafka_conf_t *conf) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+        char errstr[512];
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_new, i) {
+                rd_kafka_resp_err_t err;
+
+                err = method->u.on_new(rk, conf, method->ic_opaque, errstr,
+                                       sizeof(errstr));
+                if (unlikely(err))
+                        rd_kafka_interceptor_failed(rk, method, "on_new", err,
+                                                    NULL, errstr);
+        }
+}
+
+
+
+/**
+ * @brief Call interceptor on_destroy methods.
+ * @locality application thread calling rd_kafka_new() or rd_kafka_destroy()
+ */
+void rd_kafka_interceptors_on_destroy(rd_kafka_t *rk) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_destroy, i) {
+                rd_kafka_resp_err_t err;
+
+                err = method->u.on_destroy(rk, method->ic_opaque);
+                if (unlikely(err))
+                        rd_kafka_interceptor_failed(rk, method, "on_destroy",
+                                                    err, NULL, NULL);
+        }
+}
+
+
+
+/**
+ * @brief Call interceptor on_send methods.
+ * @locality application thread calling produce()
+ */
+void rd_kafka_interceptors_on_send(rd_kafka_t *rk,
+                                   rd_kafka_message_t *rkmessage) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_send, i) {
+                rd_kafka_resp_err_t err;
+
+                err = method->u.on_send(rk, rkmessage, method->ic_opaque);
+                if (unlikely(err))
+                        rd_kafka_interceptor_failed(rk, method, "on_send", err,
+                                                    rkmessage, NULL);
+        }
+}
+
+
+
+/**
+ * @brief Call interceptor on_acknowledgement methods.
+ * @locality application thread calling poll(), or the broker thread if
+ *           if dr callback has been set.
+ */
+void rd_kafka_interceptors_on_acknowledgement(rd_kafka_t *rk,
+                                              rd_kafka_message_t *rkmessage) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_acknowledgement,
+                        i) {
+                rd_kafka_resp_err_t err;
+
+                err = method->u.on_acknowledgement(rk, rkmessage,
+                                                   method->ic_opaque);
+                if (unlikely(err))
+                        rd_kafka_interceptor_failed(rk, method,
+                                                    "on_acknowledgement", err,
+                                                    rkmessage, NULL);
+        }
+}
+
+
+/**
+ * @brief Call on_acknowledgement methods for all messages in queue.
+ *
+ * @param force_err If non-zero, sets this error on each message.
+ *
+ * @locality broker thread
+ */
+void rd_kafka_interceptors_on_acknowledgement_queue(
+    rd_kafka_t *rk,
+    rd_kafka_msgq_t *rkmq,
+    rd_kafka_resp_err_t force_err) {
+        rd_kafka_msg_t *rkm;
+
+        RD_KAFKA_MSGQ_FOREACH(rkm, rkmq) {
+                if (force_err)
+                        rkm->rkm_err = force_err;
+                rd_kafka_interceptors_on_acknowledgement(rk,
+                                                         &rkm->rkm_rkmessage);
+        }
+}
+
+
+/**
+ * @brief Call interceptor on_consume methods.
+ * @locality application thread calling poll(), consume() or similar prior to
+ *           passing the message to the application.
+ */
+void rd_kafka_interceptors_on_consume(rd_kafka_t *rk,
+                                      rd_kafka_message_t *rkmessage) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_consume, i) {
+                rd_kafka_resp_err_t err;
+
+                err = method->u.on_consume(rk, rkmessage, method->ic_opaque);
+                if (unlikely(err))
+                        rd_kafka_interceptor_failed(rk, method, "on_consume",
+                                                    err, rkmessage, NULL);
+        }
+}
+
+
+/**
+ * @brief Call interceptor on_commit methods.
+ * @locality application thread calling poll(), consume() or similar,
+ *           or rdkafka main thread if no commit_cb or handler registered.
+ */
+void rd_kafka_interceptors_on_commit(
+    rd_kafka_t *rk,
+    const rd_kafka_topic_partition_list_t *offsets,
+    rd_kafka_resp_err_t err) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_commit, i) {
+                rd_kafka_resp_err_t ic_err;
+
+                ic_err =
+                    method->u.on_commit(rk, offsets, err, method->ic_opaque);
+                if (unlikely(ic_err))
+                        rd_kafka_interceptor_failed(rk, method, "on_commit",
+                                                    ic_err, NULL, NULL);
+        }
+}
+
+
+/**
+ * @brief Call interceptor on_request_sent methods
+ * @locality internal broker thread
+ */
+void rd_kafka_interceptors_on_request_sent(rd_kafka_t *rk,
+                                           int sockfd,
+                                           const char *brokername,
+                                           int32_t brokerid,
+                                           int16_t ApiKey,
+                                           int16_t ApiVersion,
+                                           int32_t CorrId,
+                                           size_t size) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_request_sent, i) {
+                rd_kafka_resp_err_t ic_err;
+
+                ic_err = method->u.on_request_sent(
+                    rk, sockfd, brokername, brokerid, ApiKey, ApiVersion,
+                    CorrId, size, method->ic_opaque);
+                if (unlikely(ic_err))
+                        rd_kafka_interceptor_failed(
+                            rk, method, "on_request_sent", ic_err, NULL, NULL);
+        }
+}
+
+
+/**
+ * @brief Call interceptor on_response_received methods
+ * @locality internal broker thread
+ */
+void rd_kafka_interceptors_on_response_received(rd_kafka_t *rk,
+                                                int sockfd,
+                                                const char *brokername,
+                                                int32_t brokerid,
+                                                int16_t ApiKey,
+                                                int16_t ApiVersion,
+                                                int32_t CorrId,
+                                                size_t size,
+                                                int64_t rtt,
+                                                rd_kafka_resp_err_t err) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_response_received,
+                        i) {
+                rd_kafka_resp_err_t ic_err;
+
+                ic_err = method->u.on_response_received(
+                    rk, sockfd, brokername, brokerid, ApiKey, ApiVersion,
+                    CorrId, size, rtt, err, method->ic_opaque);
+                if (unlikely(ic_err))
+                        rd_kafka_interceptor_failed(rk, method,
+                                                    "on_response_received",
+                                                    ic_err, NULL, NULL);
+        }
+}
+
+
+void rd_kafka_interceptors_on_thread_start(rd_kafka_t *rk,
+                                           rd_kafka_thread_type_t thread_type) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_thread_start, i) {
+                rd_kafka_resp_err_t ic_err;
+
+                ic_err = method->u.on_thread_start(
+                    rk, thread_type, rd_kafka_thread_name, method->ic_opaque);
+                if (unlikely(ic_err))
+                        rd_kafka_interceptor_failed(
+                            rk, method, "on_thread_start", ic_err, NULL, NULL);
+        }
+}
+
+
+void rd_kafka_interceptors_on_thread_exit(rd_kafka_t *rk,
+                                          rd_kafka_thread_type_t thread_type) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method, &rk->rk_conf.interceptors.on_thread_exit, i) {
+                rd_kafka_resp_err_t ic_err;
+
+                ic_err = method->u.on_thread_exit(
+                    rk, thread_type, rd_kafka_thread_name, method->ic_opaque);
+                if (unlikely(ic_err))
+                        rd_kafka_interceptor_failed(
+                            rk, method, "on_thread_exit", ic_err, NULL, NULL);
+        }
+}
+
+
+/**
+ * @brief Call interceptor on_broker_state_change methods.
+ * @locality any.
+ */
+void rd_kafka_interceptors_on_broker_state_change(rd_kafka_t *rk,
+                                                  int32_t broker_id,
+                                                  const char *secproto,
+                                                  const char *name,
+                                                  int port,
+                                                  const char *state) {
+        rd_kafka_interceptor_method_t *method;
+        int i;
+
+        RD_LIST_FOREACH(method,
+                        &rk->rk_conf.interceptors.on_broker_state_change, i) {
+                rd_kafka_resp_err_t ic_err;
+
+                ic_err = method->u.on_broker_state_change(
+                    rk, broker_id, secproto, name, port, state,
+                    method->ic_opaque);
+                if (unlikely(ic_err))
+                        rd_kafka_interceptor_failed(rk, method,
+                                                    "on_broker_state_change",
+                                                    ic_err, NULL, NULL);
+        }
+}
+
+
+
+/**
+ * @name Public API (backend)
+ * @{
+ */
+
+
+rd_kafka_resp_err_t rd_kafka_conf_interceptor_add_on_conf_set(
+    rd_kafka_conf_t *conf,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_conf_set_t *on_conf_set,
+    void *ic_opaque) {
+        return rd_kafka_interceptor_method_add(&conf->interceptors.on_conf_set,
+                                               ic_name, (void *)on_conf_set,
+                                               ic_opaque);
+}
+
+rd_kafka_resp_err_t rd_kafka_conf_interceptor_add_on_conf_dup(
+    rd_kafka_conf_t *conf,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_conf_dup_t *on_conf_dup,
+    void *ic_opaque) {
+        return rd_kafka_interceptor_method_add(&conf->interceptors.on_conf_dup,
+                                               ic_name, (void *)on_conf_dup,
+                                               ic_opaque);
+}
+
+rd_kafka_resp_err_t rd_kafka_conf_interceptor_add_on_conf_destroy(
+    rd_kafka_conf_t *conf,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_conf_destroy_t *on_conf_destroy,
+    void *ic_opaque) {
+        return rd_kafka_interceptor_method_add(
+            &conf->interceptors.on_conf_destroy, ic_name,
+            (void *)on_conf_destroy, ic_opaque);
+}
+
+
+
+rd_kafka_resp_err_t
+rd_kafka_conf_interceptor_add_on_new(rd_kafka_conf_t *conf,
+                                     const char *ic_name,
+                                     rd_kafka_interceptor_f_on_new_t *on_new,
+                                     void *ic_opaque) {
+        return rd_kafka_interceptor_method_add(
+            &conf->interceptors.on_new, ic_name, (void *)on_new, ic_opaque);
+}
+
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_destroy(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_destroy_t *on_destroy,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_destroy, ic_name, (void *)on_destroy,
+            ic_opaque);
+}
+
+rd_kafka_resp_err_t
+rd_kafka_interceptor_add_on_send(rd_kafka_t *rk,
+                                 const char *ic_name,
+                                 rd_kafka_interceptor_f_on_send_t *on_send,
+                                 void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_send, ic_name, (void *)on_send,
+            ic_opaque);
+}
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_acknowledgement(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_acknowledgement_t *on_acknowledgement,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_acknowledgement, ic_name,
+            (void *)on_acknowledgement, ic_opaque);
+}
+
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_consume(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_consume_t *on_consume,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_consume, ic_name, (void *)on_consume,
+            ic_opaque);
+}
+
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_commit(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_commit_t *on_commit,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_commit, ic_name, (void *)on_commit,
+            ic_opaque);
+}
+
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_request_sent(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_request_sent_t *on_request_sent,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_request_sent, ic_name,
+            (void *)on_request_sent, ic_opaque);
+}
+
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_response_received(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_response_received_t *on_response_received,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_response_received, ic_name,
+            (void *)on_response_received, ic_opaque);
+}
+
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_thread_start(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_thread_start_t *on_thread_start,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_thread_start, ic_name,
+            (void *)on_thread_start, ic_opaque);
+}
+
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_thread_exit(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_thread_exit_t *on_thread_exit,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_thread_exit, ic_name,
+            (void *)on_thread_exit, ic_opaque);
+}
+
+
+rd_kafka_resp_err_t rd_kafka_interceptor_add_on_broker_state_change(
+    rd_kafka_t *rk,
+    const char *ic_name,
+    rd_kafka_interceptor_f_on_broker_state_change_t *on_broker_state_change,
+    void *ic_opaque) {
+        assert(!rk->rk_initialized);
+        return rd_kafka_interceptor_method_add(
+            &rk->rk_conf.interceptors.on_broker_state_change, ic_name,
+            (void *)on_broker_state_change, ic_opaque);
+}