单链接限速

最近更新时间：2023-08-14 16:10:12
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简介
使用说明
简介
本文档提供关于调用上传下载接口时对链接进行限速。
使用说明
限速值设置范围为819200 - 838860800，单位默认为 bit/s，即800Kb/s - 800Mb/s，如果超出该范围将返回400错误。
说明
关于单链接限速的更多说明，请参见 单链接限速 开发者指南。
示例代码一：上传时对单链接限速
#include "cos_http_io.h"
#include "cos_api.h"
#include "cos_log.h"
﻿
// endpoint 是 COS 访问域名信息，详情请参见 https://cloud.tencent.com/document/product/436/6224 文档
static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";
// 开发者拥有的项目身份ID/密钥，可在 https://console.cloud.tencent.com/cam/capi 页面获取
static char *TEST_ACCESS_KEY_ID;                //your secret_id
static char *TEST_ACCESS_KEY_SECRET;            //your secret_key
// 开发者访问 COS 服务时拥有的用户维度唯一资源标识，用以标识资源，可在 https://console.cloud.tencent.com/cam/capi 页面获取
static char TEST_APPID[] = "<APPID>";    //your appid
//the cos bucket name, syntax: [bucket]-[appid], for example: mybucket-1253666666，可在 https://console.cloud.tencent.com/cos5/bucket 查看
static char TEST_BUCKET_NAME[] = "<bucketname-appid>";    
// 对象键，对象（Object）在存储桶（Bucket）中的唯一标识。有关对象与对象键的进一步说明，请参见 https://cloud.tencent.com/document/product/436/13324 文档
static char TEST_OBJECT_NAME1[] = "1.txt";
﻿
void init_test_config(cos_config_t *config, int is_cname)
{
    cos_str_set(&config->endpoint, TEST_COS_ENDPOINT);
    cos_str_set(&config->access_key_id, TEST_ACCESS_KEY_ID);
    cos_str_set(&config->access_key_secret, TEST_ACCESS_KEY_SECRET);
    cos_str_set(&config->appid, TEST_APPID);
    config->is_cname = is_cname;
}
﻿
void init_test_request_options(cos_request_options_t *options, int is_cname)
{
    options->config = cos_config_create(options->pool);
    init_test_config(options->config, is_cname);
    options->ctl = cos_http_controller_create(options->pool, 0);
}
﻿
void test_put_object_with_limit()
{
    cos_pool_t *p = NULL;
    int is_cname = 0;
    cos_status_t *s = NULL;
    cos_request_options_t *options = NULL;
    cos_string_t bucket;
    cos_string_t object;
    cos_string_t file;
    cos_table_t *resp_headers = NULL;
    cos_table_t *headers = NULL;
﻿
    //创建内存池
    cos_pool_create(&p, NULL);
﻿
    //初始化请求选项
    options = cos_request_options_create(p);
    init_test_request_options(options, is_cname);
    cos_str_set(&bucket, TEST_BUCKET_NAME);
﻿
    //限速值设置范围为819200 - 838860800，即800Kb/s - 800Mb/s，如果超出该范围将返回400错误
    headers = cos_table_make(p, 1);
    cos_table_add_int(headers, "x-cos-traffic-limit", 819200);
﻿
    //上传对象
    cos_str_set(&file, "test_file.bin");
    cos_str_set(&object, TEST_OBJECT_NAME1);
    s = cos_put_object_from_file(options, &bucket, &object, &file, headers, &resp_headers);
    if (cos_status_is_ok(s)) {
        printf("put object succeeded\\n");
    } else {
        printf("put object failed\\n");
    }
﻿
    //销毁内存池
    cos_pool_destroy(p); 
}
﻿
int main(int argc, char *argv[])
{
    // 通过环境变量获取 SECRETID 和 SECRETKEY
    TEST_ACCESS_KEY_ID     = getenv("COS_SECRETID");
    TEST_ACCESS_KEY_SECRET = getenv("COS_SECRETKEY");
﻿
    if (cos_http_io_initialize(NULL, 0) != COSE_OK) {
       exit(1);
    }
﻿
    //set log level, default COS_LOG_WARN
    cos_log_set_level(COS_LOG_WARN);
﻿
    //set log output, default stderr
    cos_log_set_output(NULL);
﻿
    test_put_object_with_limit();
﻿
    cos_http_io_deinitialize();
﻿
    return 0;
}
示例代码二：下载时对单链接限速
说明
关于上传和下载对象的限速说明，请参见 单链接限速。
#include "cos_http_io.h"
#include "cos_api.h"
#include "cos_log.h"
﻿
// endpoint 是 COS 访问域名信息，详情请参见 https://cloud.tencent.com/document/product/436/6224 文档
static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";
// 开发者拥有的项目身份ID/密钥，可在 https://console.cloud.tencent.com/cam/capi 页面获取
static char *TEST_ACCESS_KEY_ID;                //your secret_id
static char *TEST_ACCESS_KEY_SECRET;            //your secret_key
// 开发者访问 COS 服务时拥有的用户维度唯一资源标识，用以标识资源，可在 https://console.cloud.tencent.com/cam/capi 页面获取
static char TEST_APPID[] = "<APPID>";    //your appid
//the cos bucket name, syntax: [bucket]-[appid], for example: mybucket-1253666666，可在 https://console.cloud.tencent.com/cos5/bucket 查看
static char TEST_BUCKET_NAME[] = "<bucketname-appid>";    
// 对象键，对象（Object）在存储桶（Bucket）中的唯一标识。有关对象与对象键的进一步说明，请参见 https://cloud.tencent.com/document/product/436/13324 文档
static char TEST_OBJECT_NAME1[] = "1.txt";
﻿
void init_test_config(cos_config_t *config, int is_cname)
{
    cos_str_set(&config->endpoint, TEST_COS_ENDPOINT);
    cos_str_set(&config->access_key_id, TEST_ACCESS_KEY_ID);
    cos_str_set(&config->access_key_secret, TEST_ACCESS_KEY_SECRET);
    cos_str_set(&config->appid, TEST_APPID);
    config->is_cname = is_cname;
}
﻿
void init_test_request_options(cos_request_options_t *options, int is_cname)
{
    options->config = cos_config_create(options->pool);
    init_test_config(options->config, is_cname);
    options->ctl = cos_http_controller_create(options->pool, 0);
}
﻿
void test_get_object_with_limit()
{
    cos_pool_t *p = NULL;
    int is_cname = 0;
    cos_status_t *s = NULL;
    cos_request_options_t *options = NULL;
    cos_string_t bucket;
    cos_string_t object;
    cos_string_t file;
    cos_table_t *resp_headers = NULL;
    cos_table_t *headers = NULL;
﻿
    //创建内存池
    cos_pool_create(&p, NULL);
﻿
    //初始化请求选项
    options = cos_request_options_create(p);
    init_test_request_options(options, is_cname);
    cos_str_set(&bucket, TEST_BUCKET_NAME);
﻿
    //限速值设置范围为819200 - 838860800，即800Kb/s - 800Mb/s，如果超出该范围将返回400错误
    headers = cos_table_make(p, 1);
    cos_table_add_int(headers, "x-cos-traffic-limit", 819200);
﻿
    //下载对象
    cos_str_set(&file, "test_file.bin");
    cos_str_set(&object, TEST_OBJECT_NAME1);
    s = cos_get_object_to_file(options, &bucket, &object, headers, NULL, &file, &resp_headers);
    if (cos_status_is_ok(s)) {
        printf("get object succeeded\\n");
    } else {
        printf("get object failed\\n");
    }
﻿
    //销毁内存池
    cos_pool_destroy(p); 
}
﻿
int main(int argc, char *argv[])
{
    // 通过环境变量获取 SECRETID 和 SECRETKEY
    TEST_ACCESS_KEY_ID     = getenv("COS_SECRETID");
    TEST_ACCESS_KEY_SECRET = getenv("COS_SECRETKEY");
﻿
    if (cos_http_io_initialize(NULL, 0) != COSE_OK) {
       exit(1);
    }
﻿
    //set log level, default COS_LOG_WARN
    cos_log_set_level(COS_LOG_WARN);
﻿
    //set log output, default stderr
    cos_log_set_output(NULL);
﻿
    test_get_object_with_limit();
﻿
    cos_http_io_deinitialize();
﻿
    return 0;
}
﻿
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