腾讯云对象存储单链接限速

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_idstatic 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[] = "";    //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[] = "";    // 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_idstatic 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[] = "";    //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[] = "";    // 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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