384 lines
10 KiB
C++
384 lines
10 KiB
C++
#include <sys/types.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <time.h>
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#include <string.h>
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#include <hiredis-vip/hircluster.h>
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#include <hiredis-vip/async.h>
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#include <hiredis-vip/adapters/libevent.h>
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#include <cjson/cJSON.h>
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#include "tango_cache_transfer.h"
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#include "tango_cache_tools.h"
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#include "tango_cache_redis.h"
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#define PARSE_JSON_RET_ERROR -1
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#define PARSE_JSON_RET_TIMEOUT 0
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#define PARSE_JSON_RET_SUCC 1
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#define CACHE_REDIS_CONNECT_IDLE 0
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#define CACHE_REDIS_CONNECTING 1
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#define CACHE_REDIS_CONNECTED 2
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#define CACHE_REDIS_DISCONNECTED 3
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static void redis_asyn_disconnect_cb(const struct redisAsyncContext *ac, int status)
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{
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struct tango_cache_instance *instance = (struct tango_cache_instance *)redisAsyncGetConnectionData(ac);
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if(status == REDIS_OK)
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{
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MESA_HANDLE_RUNTIME_LOGV2(instance->runtime_log, RLOG_LV_FATAL, "Redis disconnect %s:%d success.",
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ac->c.tcp.host, ac->c.tcp.port);
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}
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else
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{
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MESA_HANDLE_RUNTIME_LOGV2(instance->runtime_log, RLOG_LV_FATAL, "Redis disconnect %s:%d failed: %s.",
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ac->c.tcp.host, ac->c.tcp.port, ac->errstr);
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}
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instance->redis_connecting = CACHE_REDIS_DISCONNECTED;
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}
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static void redis_asyn_connect_cb(const struct redisAsyncContext *ac, int status)
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{
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struct tango_cache_instance *instance = (struct tango_cache_instance *)redisAsyncGetConnectionData(ac);
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if(status == REDIS_OK)
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{
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MESA_HANDLE_RUNTIME_LOGV2(instance->runtime_log, RLOG_LV_FATAL, "RedisCluster connect %s:%d success.",
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ac->c.tcp.host, ac->c.tcp.port);
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instance->redis_connecting = CACHE_REDIS_CONNECTED;
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}
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else
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{
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instance->redis_connecting = CACHE_REDIS_CONNECT_IDLE;
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MESA_HANDLE_RUNTIME_LOGV2(instance->runtime_log, RLOG_LV_FATAL, "RedisCluster connect %s:%d failed: %s.",
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ac->c.tcp.host, ac->c.tcp.port, ac->errstr);
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}
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}
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int redis_asyn_connect_init(struct tango_cache_instance *instance)
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{
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instance->redis_ac = redisClusterAsyncConnect(instance->param->redisaddrs, HIRCLUSTER_FLAG_ROUTE_USE_SLOTS);
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if(instance->redis_ac == NULL)
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{
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return -1;
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}
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instance->redis_connecting = CACHE_REDIS_CONNECTING;
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redisClusterLibeventAttach(instance->redis_ac, instance->evbase);
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redisClusterAsyncSetConnectionData(instance->redis_ac, instance);
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redisClusterAsyncSetConnectCallback(instance->redis_ac, redis_asyn_connect_cb);
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redisClusterAsyncSetDisconnectCallback(instance->redis_ac, redis_asyn_disconnect_cb);
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return 0;
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}
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static int parse_object_meta_json(struct tango_cache_ctx *ctx, const char *jcontent)
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{
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cJSON *root, *ptarget;
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int ret = PARSE_JSON_RET_ERROR;
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char usertag[2048];
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size_t datalen;
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if(NULL == (root=cJSON_Parse(jcontent)))
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{
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goto out_json;
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}
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if(NULL == (ptarget=cJSON_GetObjectItem(root, "Content-Length")))
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{
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goto out_json;
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}
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ctx->get.result.tlength = ptarget->valuedouble;
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if(NULL==(ptarget=cJSON_GetObjectItem(root, "X-Amz-Meta-Lm")))
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{
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goto out_json;
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}
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ctx->get.last_modify = ptarget->valuedouble;
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if(NULL==(ptarget=cJSON_GetObjectItem(root, "Expires")))
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{
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goto out_json;
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}
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ctx->get.expires = ptarget->valuedouble;
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ctx->get.need_hdrs = RESPONSE_HDR_ALL;
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if(!check_expires_fresh_header(ctx))
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{
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ret = PARSE_JSON_RET_TIMEOUT;
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goto out_json;
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}
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if(NULL!=(ptarget=cJSON_GetObjectItem(root, "Headers")))
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{
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easy_string_savedata(&ctx->response, ptarget->valuestring, strlen(ptarget->valuestring));
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}
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if(NULL!=(ptarget=cJSON_GetObjectItem(root, "X-Amz-Meta-User")))
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{
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if((datalen = Base64_DecodeBlock((unsigned char*)ptarget->valuestring, strlen(ptarget->valuestring), (unsigned char*)usertag, 2048))>0)
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{
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easy_string_savedata(&ctx->get.response_tag, usertag, datalen);
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}
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}
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cJSON_Delete(root);
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return PARSE_JSON_RET_SUCC;
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out_json:
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cJSON_Delete(root);
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return ret;
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}
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static void redis_hget_command_cb(struct redisClusterAsyncContext *ac, void *vreply, void *privdata)
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{
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redisReply *reply = (redisReply *)vreply;
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struct tango_cache_ctx *ctx = (struct tango_cache_ctx *)privdata;
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int ret;
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ctx->instance->statistic.session_redis -= 1;
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if(reply == NULL || reply->type!=REDIS_REPLY_ARRAY)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_EXEC);
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if(reply!=NULL && reply->type==REDIS_REPLY_ERROR)
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{
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promise_failed(ctx->promise, FUTURE_ERROR_CANCEL, reply->str);
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}
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else
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{
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promise_failed(ctx->promise, FUTURE_ERROR_CANCEL, tango_cache_get_errstring(ctx));
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}
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tango_cache_ctx_destroy(ctx);
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return;
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}
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else if(reply->element[0]->type == REDIS_REPLY_NIL)
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{
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tango_cache_set_fail_state(ctx, CACHE_CACHE_MISS);
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ctx->get.result.type = RESULT_TYPE_MISS;
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promise_success(ctx->promise, &ctx->get.result);
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promise_finish(ctx->promise);
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tango_cache_ctx_destroy(ctx);
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return;
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}
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switch(ctx->get.state)
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{
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case GET_STATE_REDIS_META:
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ctx->get.result.location = (strcmp(reply->element[1]->str, "redis"))?OBJECT_IN_MINIO:OBJECT_IN_REDIS;
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break;
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case GET_STATE_REDIS_ALL:
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ctx->get.result.location = OBJECT_IN_REDIS;
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break;
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case GET_STATE_REDIS_TRY:
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ctx->get.result.location = (strcmp(reply->element[1]->str, "redis"))?OBJECT_IN_MINIO:OBJECT_IN_REDIS;
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if(ctx->get.result.location == OBJECT_IN_MINIO)
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{
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ctx->get.redis_redirect_minio_cb(ctx);
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return;
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}
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ctx->locate = OBJECT_IN_REDIS;
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break;
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default: assert(0);break;
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}
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ret = parse_object_meta_json(ctx, reply->element[0]->str);
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switch(ret)
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{
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case PARSE_JSON_RET_ERROR:
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_JSON);
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promise_failed(ctx->promise, FUTURE_ERROR_CANCEL, tango_cache_get_errstring(ctx));
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tango_cache_ctx_destroy(ctx);
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break;
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case PARSE_JSON_RET_TIMEOUT:
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if(ctx->get.state == GET_STATE_DELETE && ctx->get.result.location==OBJECT_IN_MINIO)
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{
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ctx->get.state = GET_STATE_END;
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cache_delete_minio_object(ctx);
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}
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else
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{
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tango_cache_ctx_destroy(ctx);
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}
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break;
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case PARSE_JSON_RET_SUCC:
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fetch_header_over_biz(ctx);
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if(ctx->get.state != GET_STATE_REDIS_META)
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{
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ctx->get.result.data_frag = reply->element[2]->str;
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ctx->get.result.size = reply->element[2]->len;
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ctx->get.result.type = RESULT_TYPE_BODY;
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promise_success(ctx->promise, &ctx->get.result);
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}
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ctx->get.result.type = RESULT_TYPE_END;
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promise_success(ctx->promise, &ctx->get.result);
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promise_finish(ctx->promise);
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tango_cache_ctx_destroy(ctx);
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break;
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default: assert(0);break;
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}
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}
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int tango_cache_head_redis(struct tango_cache_ctx *ctx)
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{
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int ret = -1;
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ret = redisClusterAsyncCommand(ctx->instance->redis_ac, redis_hget_command_cb, ctx,
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"HMGET %s OBJECT_META OBJECT_LOCATION", ctx->object_key);
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if(ret != REDIS_OK)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_CONNECT);
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tango_cache_ctx_destroy(ctx);
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}
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else
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{
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ctx->instance->statistic.session_redis += 1;
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ctx->get.state = GET_STATE_REDIS_META;
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}
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return ret;
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}
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int tango_cache_fetch_redis(struct tango_cache_ctx *ctx)
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{
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int ret = -1;
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ret = redisClusterAsyncCommand(ctx->instance->redis_ac, redis_hget_command_cb, ctx,
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"HMGET %s OBJECT_META OBJECT_LOCATION OBJECT_BODY", ctx->object_key);
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if(ret != REDIS_OK)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_CONNECT);
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tango_cache_ctx_destroy(ctx);
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}
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else
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{
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ctx->instance->statistic.session_redis += 1;
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ctx->get.state = GET_STATE_REDIS_ALL;
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}
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return ret;
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}
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int tango_cache_try_fetch_redis(struct tango_cache_ctx *ctx)
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{
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int ret = -1;
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ret = redisClusterAsyncCommand(ctx->instance->redis_ac, redis_hget_command_cb, ctx,
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"HMGET %s OBJECT_META OBJECT_LOCATION OBJECT_BODY", ctx->object_key);
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if(ret != REDIS_OK)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_CONNECT);
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tango_cache_ctx_destroy(ctx);
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}
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else
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{
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ctx->instance->statistic.session_redis += 1;
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ctx->get.state = GET_STATE_REDIS_TRY;
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}
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return ret;
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}
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static void redis_hset_command_cb(struct redisClusterAsyncContext *ac, void *vreply, void *privdata)
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{
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struct tango_cache_ctx *ctx = (struct tango_cache_ctx *)privdata;
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redisReply *reply = (redisReply *)vreply;
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int ret;
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ctx->instance->statistic.session_redis -= 1;
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if(reply == NULL || reply->type==REDIS_REPLY_ERROR || ac->err)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_EXEC);
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}
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if(ctx->fail_state)
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{
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tango_cache_ctx_destroy(ctx, true);
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return;
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}
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switch(ctx->put.state)
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{
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case PUT_STATE_REDIS_META:
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case PUT_STATE_REDIS_ALL:
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ret = redisClusterAsyncCommand(ctx->instance->redis_ac, redis_hset_command_cb, ctx,
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"EXPIRE %s %u", ctx->object_key, ctx->put.object_ttl);
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if(ret != REDIS_OK)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_EXEC);
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tango_cache_ctx_destroy(ctx, true);
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}
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else
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{
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ctx->instance->statistic.session_redis += 1;
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ctx->put.state = PUT_STATE_END;
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}
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break;
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case PUT_STATE_END:
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tango_cache_ctx_destroy(ctx, true);
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break;
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default: assert(0);break;
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}
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}
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int redis_put_minio_object_meta(struct tango_cache_ctx *ctx, bool callback)
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{
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int ret;
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char *meta;
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meta = cJSON_PrintUnformatted(ctx->put.object_meta);
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ret = redisClusterAsyncCommand(ctx->instance->redis_ac, redis_hset_command_cb, ctx,
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"HMSET %s OBJECT_LOCATION minio OBJECT_META %s", ctx->object_key, meta);
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if(ret != REDIS_OK)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_CONNECT);
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tango_cache_ctx_destroy(ctx, callback);
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}
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else
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{
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ctx->instance->statistic.session_redis += 1;
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ctx->put.state = PUT_STATE_REDIS_META;
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}
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free(meta);
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return ret;
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}
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int redis_put_complete_part_data(struct tango_cache_ctx *ctx, enum PUT_MEMORY_COPY_WAY way, const char *data, size_t size, bool callback)
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{
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int ret;
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char *meta;
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ctx->instance->statistic.memory_used -= size;
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meta = cJSON_PrintUnformatted(ctx->put.object_meta);
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ret = redisClusterAsyncCommand(ctx->instance->redis_ac, redis_hset_command_cb, ctx,
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"HMSET %s OBJECT_LOCATION redis OBJECT_META %s OBJECT_BODY %b", ctx->object_key, meta, data, size);
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if(ret != REDIS_OK)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_REDIS_CONNECT);
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tango_cache_ctx_destroy(ctx, callback);
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}
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else
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{
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ctx->instance->statistic.session_redis += 1;
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ctx->put.state = PUT_STATE_REDIS_ALL;
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}
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if(way == PUT_MEM_FREE)
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{
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free((void *)data);
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}
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free(meta);
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return ret;
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}
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int redis_put_complete_part_evbuf(struct tango_cache_ctx *ctx, size_t object_size, bool callback)
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{
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char *data;
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size_t size;
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data = (char *)malloc(object_size);
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size = evbuffer_remove(ctx->put.evbuf, data, object_size);
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if(size != object_size)
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{
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tango_cache_set_fail_state(ctx, CACHE_ERR_EVBUFFER);
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tango_cache_ctx_destroy(ctx, callback);
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free(data);
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return CACHE_ERR_EVBUFFER;
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}
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return redis_put_complete_part_data(ctx, PUT_MEM_FREE, data, object_size, callback);
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}
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