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单链接限速

最后更新时间:2024-01-04 17:06:08

    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100KB/s - 100MB/s,如果超出该范围将返回400错误。

    示例代码一:上传时对单链接限速

    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://www.tencentcloud.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.tencentcloud.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.tencentcloud.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.tencentcloud.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://www.tencentcloud.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100KB/s - 100MB/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://www.tencentcloud.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.tencentcloud.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.tencentcloud.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.tencentcloud.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://www.tencentcloud.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100KB/s - 100MB/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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