zookeeper C API

来源：互联网发布：异星工厂物流网络编辑：程序博客网时间：2024/05/21 17:07
#include <stdio.h>#include <stdlib.h>#include <string.h>#include "include/zookeeper/zookeeper.h"#include "include/zookeeper/zookeeper_log.h"//void zktest_watcher_g(zhandle_t* zh, int type, int state,//        const char* path, void* watcherCtx)//{//    printf("Something happened.\n");//    printf("type: %d\n", type);//    printf("state: %d\n", state);//    printf("path: %s\n", path);//    printf("watcherCtx: %s\n", (char *)watcherCtx);//}//void zktest_dump_stat(const struct Stat *stat)//{//    char tctimes[40];//    char tmtimes[40];//    time_t tctime;//    time_t tmtime;//    if (!stat) {//        fprintf(stderr,"null\n");//        return;//    }//    tctime = stat->ctime/1000;//    tmtime = stat->mtime/1000;//    ctime_r(&tmtime, tmtimes);//    ctime_r(&tctime, tctimes);//    fprintf(stderr, "\tctime = %s\tczxid=%llx\n"//    "\tmtime=%s\tmzxid=%llx\n"//    "\tversion=%x\taversion=%x\n"//    "\tephemeralOwner = %llx\n",//     tctimes, stat->czxid,//     tmtimes, stat->mzxid,//    (unsigned int)stat->version, (unsigned int)stat->aversion,//    stat->ephemeralOwner);//}//void zktest_stat_completion(int rc, const struct Stat *stat, const void *data)//{//    fprintf(stderr, "%s: rc = %d Stat:\n", (char*)data, rc);//    zktest_dump_stat(stat);//}//void zktest_void_completion(int rc, const void *data)//{//    fprintf(stderr, "[%s]: rc = %d\n", (char*)(data==0?"null":data), rc);//}//void zktest_string_completion(int rc, const char *name, const void *data)//{//    fprintf(stderr, "[%s]: rc = %d\n", (char*)(data==0?"null":data), rc);//    if (!rc) {//        fprintf(stderr, "\tname = %s\n", name);//    }//}//---------------------------------------------------------------------------------//void zktest_watcher_g(zhandle_t* zh, int type, int state, const char* path, void* watcherCtx){    printf("Something happened.\n");    printf("type: %d\n", type);    printf("state: %d\n", state);    printf("path: %s\n", path);    printf("watcherCtx: %s\n", (char *)watcherCtx);}//自己的监听函数void watcher_myself(zhandle_t *zh,int type,int state,const char *path,void *watcherCtx){    printf("just for testing\n");    printf("path:%s\n",path);}//同步方式创建节点void create(zhandle_t *zkhandle,char *str){    char path_buffer[64];    int bufferlen=sizeof(path_buffer);    printf("同步方式创建节点-----------------------\n");    int flag = zoo_create(zkhandle,str,"hahah",5,                          &ZOO_OPEN_ACL_UNSAFE,0,                          path_buffer,bufferlen);    if (flag!=ZOK)    {        printf("节点创建失败 \n");        exit(EXIT_FAILURE);    }    else    {        printf("创建的节点名称为：%s\n",path_buffer);    }}//同步方式获取节点数据void get(zhandle_t* zkhandle){    printf("同步方式获取节点数据-----------------------\n");    char buffer1[64];    int bufferlen1=sizeof(buffer1);    int flag1=zoo_get(zkhandle,"/xyz3",0,                      buffer1,&bufferlen1,NULL);    if (flag1 ==ZOK)    {        printf("节点/xyz3的数据为: %s\n",buffer1);    }}//existsvoid exists(zhandle_t *zkhandle,char *str){    int flag = zoo_exists(zkhandle,str,1,NULL);}void wexists(zhandle_t *zkhandle,char *str){    int flag=zoo_wexists(zkhandle,str,watcher_myself,"test",NULL);}//同步方式获得子节点信息void getChildren(zhandle_t *zkhandle,char *str){    struct String_vector strings;    struct Stat stat;    int flag = zoo_wget_children2(zkhandle,str,                                  watcher_myself,"testgetChildren",                                  &strings,&stat);    if (flag==ZOK)    {        int32_t i=0;        for (;i<strings.count;++i)            printf("%s\n",strings.data[i]);    }}//获取ACL信息void getACL(zhandle_t *zkhandle,char *str){    struct ACL_vector acl;    struct Stat stat;    int flag = zoo_get_acl(zkhandle,str,&acl,&stat);    if (flag==ZOK)    {        printf("-----------------the ACL of %s:\n------------",str);        printf("%d\n",acl.count);        printf("%d\n",acl.data->perms);        printf("%s\n",acl.data->id.scheme);        printf("%s\n",acl.data->id.id);    }}//删除节点void my_delete(zhandle_t *zkhandle,char *str){    int flag = zoo_delete(zkhandle,str,-1);    if (flag==ZOK)    {        printf("delete node success\n");    }}int main(int argc, const char *argv[]){    const char* host = "127.0.0.1:2181";    int timeout = 30000;    char buffer[512];    int *bufferlen;    zoo_set_debug_level(ZOO_LOG_LEVEL_WARN); //设置日志级别,避免出现一些其他信息    zhandle_t* zkhandle = zookeeper_init(host,zktest_watcher_g, timeout, 0, "hello zookeeper.", 0);    if (zkhandle ==NULL)    {        fprintf(stderr, "Error when connecting to zookeeper servers...\n");        exit(EXIT_FAILURE);    }    char str[]="/xyz30000000014";    // wexists(zkhandle,str);    // printf("---------------\n");    //create(zkhandle,str);    //get(zkhandle);    // getChildren(zkhandle,str);    //getACL(zkhandle,str);    my_delete(zkhandle,str);}////////////////////////////////////////////////////////////////////////////////////////////int main(int argc, const char *argv[])//{//    const char* host = "127.0.0.1:2181,127.0.0.1:2182,"//        "127.0.0.1:2183";//    int timeout = 30000;//    zoo_set_debug_level(ZOO_LOG_LEVEL_WARN);//    zhandle_t* zkhandle = zookeeper_init(host,//            zktest_watcher_g, timeout, 0, "hello zookeeper.", 0);//    if (zkhandle == NULL) {//        fprintf(stderr, "Error when connecting to zookeeper servers...\n");//        exit(EXIT_FAILURE);//    }//    // struct ACL ALL_ACL[] = {{ZOO_PERM_ALL, ZOO_ANYONE_ID_UNSAFE}};//    // struct ACL_vector ALL_PERMS = {1, ALL_ACL};//    int ret = zoo_acreate(zkhandle, "/xyz", "hello", 5,//           &ZOO_OPEN_ACL_UNSAFE, 0 /* ZOO_SEQUENCE */,//           zktest_string_completion, "acreate");//    if (ret) {//        fprintf(stderr, "Error %d for %s\n", ret, "acreate");//        exit(EXIT_FAILURE);//    }//    ret = 0;//    ret = zoo_aexists(zkhandle, "/xyz", 1, zktest_stat_completion, "aexists");//    if (ret) {//        fprintf(stderr, "Error %d for %s\n", ret, "aexists");//        exit(EXIT_FAILURE);//    }//    ret = 0;//    // Wait for asynchronous zookeeper call done.//    getchar();//    ret = zoo_adelete(zkhandle, "/xyz", -1, zktest_void_completion, "adelete");//    if (ret) {//        fprintf(stderr, "Error %d for %s\n", ret, "adelete");//        exit(EXIT_FAILURE);//    }//    // Wait for asynchronous zookeeper call done.//    getchar();//    zookeeper_close(zkhandle);//}
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