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Single-URL Speed Limits

Terakhir diperbarui:2022-01-23 14:17:47

    Overview

    This document describes how to limit the speed on a single URL when calling the upload or download API.

    Directions

    The speed range is 819200 to 838860800 (in bit/s), that is, 100 KB/s to 100 MB/s. If a value is not within this range, 400 will be returned.

    Sample 1. Limiting single-URL speed on uploads

    Note:

    For more information about the speed limits on object uploads and downloads, please see Single-URL Speed Limits.

    #include "cos_http_io.h"
    #include "cos_api.h"
    #include "cos_log.h"
    // `endpoint` is the COS access domain name. For more information, see https://intl.cloud.tencent.com/document/product/436/6224.
    static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";
    // A developer-owned secret ID/key used for the project. It can be obtained at https://console.intl.cloud.tencent.com/cam/capi.
    static char *TEST_ACCESS_KEY_ID;                // Your SecretId
    static char *TEST_ACCESS_KEY_SECRET;            // Your SecretKey
    // A unique user-level resource identifier for COS access. It can be obtained at https://console.intl.cloud.tencent.com/cam/capi.
    static char TEST_APPID[] = "<APPID>";    // Your APPID
    // COS bucket name, in the format of [bucket]-[appid], for example `mybucket-1253666666`. It can be obtained at https://console.intl.cloud.tencent.com/cos5/bucket.
    static char TEST_BUCKET_NAME[] = "<bucketname-appid>";    
    // A unique identifier of an object stored in COS. For more information about objects and object keys, please see https://intl.cloud.tencent.com/document/product/436/13324.
    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;
       // Create a memory pool
      cos_pool_create(&p, NULL);
       // Initialize the request options
      options = cos_request_options_create(p);
      init_test_request_options(options, is_cname);
      cos_str_set(&bucket, TEST_BUCKET_NAME);
       // The speed range is 819200 to 838860800, that is 100 KB/s to 100 MB/s. If the value is not within this range, 400 will be returned.
      headers = cos_table_make(p, 1);
      cos_table_add_int(headers, "x-cos-traffic-limit", 819200);
       // Upload an object
      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");
      }
       // Destroy the memory pool.
      cos_pool_destroy(p); 
    }
    int main(int argc, char *argv[])
    {
      // Get SecretId and SecretKey from environment variables
      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 the log level. Default value: `COS_LOG_WARN`
      cos_log_set_level(COS_LOG_WARN);
       // Set log output. Default value: `stderr`
      cos_log_set_output(NULL);
       test_put_object_with_limit();
       cos_http_io_deinitialize();
       return 0;
    }
    

    Sample 2. Limiting single-URL speed on downloads

    Note:

    For more information about the speed limits on object uploads and downloads, please see Single-URL Speed Limits.

    #include "cos_http_io.h"
    #include "cos_api.h"
    #include "cos_log.h"
    // `endpoint` is the COS access domain name. For more information, see https://intl.cloud.tencent.com/document/product/436/6224.
    static char TEST_COS_ENDPOINT[] = "cos.ap-guangzhou.myqcloud.com";
    // A developer-owned secret ID/key used for the project. It can be obtained at https://console.intl.cloud.tencent.com/cam/capi.
    static char *TEST_ACCESS_KEY_ID;                // Your SecretId
    static char *TEST_ACCESS_KEY_SECRET;            // Your SecretKey
    // A unique user-level resource identifier for COS access. It can be obtained at https://console.intl.cloud.tencent.com/cam/capi.
    static char TEST_APPID[] = "<APPID>";    // Your APPID
    // COS bucket name, in the format of [bucket]-[appid], for example `mybucket-1253666666`. It can be obtained at https://console.intl.cloud.tencent.com/cos5/bucket.
    static char TEST_BUCKET_NAME[] = "<bucketname-appid>";    
    // A unique identifier of an object stored in COS. For more information about objects and object keys, please see https://intl.cloud.tencent.com/document/product/436/13324.
    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;
       // Create a memory pool
      cos_pool_create(&p, NULL);
       // Initialize the request options
      options = cos_request_options_create(p);
      init_test_request_options(options, is_cname);
      cos_str_set(&bucket, TEST_BUCKET_NAME);
       // The speed range is 819200 to 838860800, that is 100 KB/s to 100 MB/s. If the value is not within this range, 400 will be returned.
      headers = cos_table_make(p, 1);
      cos_table_add_int(headers, "x-cos-traffic-limit", 819200);
       // Download the object
      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");
      }
       // Destroy the memory pool.
      cos_pool_destroy(p); 
    }
    int main(int argc, char *argv[])
    {
      // Get SecretId and SecretKey from environment variables
      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 the log level. Default value: `COS_LOG_WARN`
      cos_log_set_level(COS_LOG_WARN);
       // Set log output. Default value: `stderr`
      cos_log_set_output(NULL);
       test_get_object_with_limit();
       cos_http_io_deinitialize();
       return 0;
    }
    
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