using libcurl in a c++ dll

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Hi...

I have successfully executed the following as a seprate piece of code in c++:
1. Created a dll and called the dll from a seprate application.
2. Used libcurl to hit the server and recieved response.

Now i am trying to use the same libcurl code in the dll. When I try to build this code in the dll it gives me the following error :

VB

error: `curl_socket_t' has not been declared
/usr/include/curl/curl.h:339: error: typedef `curl_socket_t' is initialized (use __typeof__ instead)
/usr/include/curl/curl.h:339: error: `curl_opensocket_callback' was not declared in this scope
/usr/include/curl/curl.h:339: error: expected `,' or `;' before '(' token
demofile.cpp:91:2: warning: no newline at end of file

I am stuck with this. Can any one help.

Thanks in advance.

Posted 12-May-13 23:22pm

AsthaS

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Comments

pasztorpisti 13-May-13 5:48am

There is nothing special in using libcurl from a dll. Its the same as using it from an exe. The problem is probably that your dll project compiles with different settings/environment/defines.

AsthaS 13-May-13 6:08am

i have compiled a simple dll and used it in an application, that was done successfully. The problem occured when i introduced a method which uses LibCurl..!!

pasztorpisti 13-May-13 6:58am

What method and where?

Richard MacCutchan 13-May-13 9:12am

Look at the first error message. Your header file includes a type that has not been declared so you are missing that definition, which presumably should be in a prior header file.

AsthaS 14-May-13 1:50am

This is my sample code :
#ifndef DEMO_CODE_H
#define DEMO_CODE_H

#include < stdio.h >
#include < windows.h >
#include < iostream >
#include "curl/curl.h"

extern "C" __declspec(dllexport) int GetCapabilities();
//;

There is one cpp file which includes the definition of int GetCapabilities() method.
But the error is occurring in the curl.h file which i haven't even touched.

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