Use of libcurl library in Cocos2d-x (1) view library version information

Use the following code to check the libcurl library version information used in the Cocos2d-x # if (CC_TARGET_PLATFORMCC_PLATFORM_IOS) # include .. example. h # endif # if (CC_TARGET_PLATFORMCC_PLATFORM_ANDROID) # include .. cocos2dexternal

Use the following code to check the version information of the libcurl library used in the Cocos2d-x # if (CC_TARGET_PLATFORM = CC_PLATFORM_IOS) # include .. /cocos2d/external/curl/include/ios/curl. h # endif # if (CC_TARGET_PLATFORM = CC_PLATFORM_ANDROID) # include .. /cocos2d/external/

Use the following code to detect version information for libcurl libraries used in the Cocos2d-x

#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)#include "../cocos2d/external/curl/include/ios/curl/curl.h"#endif#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)#include "../cocos2d/external/curl/include/android/curl/curl.h"#endifint getVersion(){    CURLcode  return_code;    return_code = curl_global_init(CURL_GLOBAL_ALL);        if(CURLE_OK != return_code)    {        log("init libcurl failed");        return -1;    }        log("curl_version=%s",curl_version());    curl_version_info_data *p = curl_version_info(CURLVERSION_NOW);    log("curl_version_info_data = %u",p->version_num);    curl_global_cleanup();    return 0;}

1. The parameter flag of curl_global_init

CURL_GLOBAL_ALL Initialize everything possible. This sets all known bits should t CURL_GLOBAL_ACK_EINTR.

CURL_GLOBAL_SSL Initialize SSL

CURL_GLOBAL_WIN32 Initialize the Win32 socket libraries.

CURL_GLOBAL_NOTHING Initialise nothing extra. This sets no bit.

CURL_GLOBAL_DEFAULT A sensible default. It will init both SSL and Win32. Right now, this equals the functionality of the CURL_GLOBAL_ALL mask.

CURL_GLOBAL_ACK_EINTR When this flag is set, curl will acknowledge EINTR condition when connecting or when waiting for data. Otherwise, curl waits until full timeout elapses. (Added in 7.30.0)

2. curl_version_info_data struct

typedef struct {  CURLversion age;          /* age of the returned struct */  const char *version;      /* LIBCURL_VERSION */  unsigned int version_num; /* LIBCURL_VERSION_NUM */  const char *host;         /* OS/host/cpu/machine when configured */  int features;             /* bitmask, see defines below */  const char *ssl_version;  /* human readable string */  long ssl_version_num;     /* not used anymore, always 0 */  const char *libz_version; /* human readable string */  /* protocols is terminated by an entry with a NULL protoname */  const char * const *protocols;  /* The fields below this were added in CURLVERSION_SECOND */  const char *ares;  int ares_num;  /* This field was added in CURLVERSION_THIRD */  const char *libidn;  /* These field were added in CURLVERSION_FOURTH */  /* Same as '_libiconv_version' if built with HAVE_ICONV */  int iconv_ver_num;  const char *libssh_version; /* human readable string */} curl_version_info_data;

3. curl_global_init initializes libcurl. CURL_GLOBAL_ALL will enable libcurl to initialize all sub-modules and some default options. This is a better default value.

4. curl_global_cleanup: release resources. curl_global_init and curl_global_cleanup can only be called once.