Homebrew Unexpected DSI Exception

[arasium]

Hi everybody,

i've made a c++ class to encapsulate Http request mecanism. This class do its job without error when i compile it under Visual Studio and running under Windows.

But when i modify it to be compatible with wii (network initialization is different), it crash when the destructor is called (i think it's a segmentation fault, but i don't know where it can occure...).

Here is my code (download here)

NetworkRequest.h
CODE#ifndef _NETWORKREQUEST_H_
#define _NETWORKREQUEST_H_

#include
#include "NetworkResponse.h"
#include

#define NETWORK_BLOCK_SIZEÂÂÂÂ1000
#define NETWORK_PORTÂÂÂÂÂÂÂÂ80

class NetworkRequest
{
private:
ÂÂÂÂs32ÂÂ_sockfd;
ÂÂÂÂstd::string _request;
ÂÂÂÂstd::string _hostName;
ÂÂÂÂstd::string _path;

ÂÂÂÂvoid Connect();
ÂÂÂÂvoid Disconnect();
ÂÂÂÂstatic void Init();
ÂÂÂÂu32 Read(void *buffer, u32 len);
ÂÂÂÂvoid Write(const void *buffer, u32 len);
ÂÂÂÂu32 GetResponseLength();
public:

ÂÂÂÂNetworkRequest(const std::string &request);
ÂÂÂÂ~NetworkRequest();
ÂÂÂÂNetworkResponse GetResponse();
};

#endif

NetworkRequest.cpp
CODE#include "header/NetworkRequest.h"

#include
#include
#include
#include
#include

#include "header/Exception.h"

using namespace std;


void NetworkRequest::Init()
{
ÂÂÂÂstatic bool isInitialized = false;
ÂÂÂÂs32 ret;

ÂÂÂÂ/* if is already initialized, we do nothing */
ÂÂÂÂif(isInitialized)
ÂÂÂÂÂÂÂÂreturn;

ÂÂÂÂ/* Initialize network */
ÂÂÂÂstatic char _hostip[16];
ÂÂÂÂret = if_config(_hostip, NULL, NULL, true);
ÂÂÂÂif (ret < 0)
ÂÂÂÂÂÂÂÂthrow new Exception("Can't initialize network!",ret);

ÂÂÂÂisInitialized = true;

ÂÂÂÂreturn;
}
NetworkRequest::NetworkRequest(const string &request)
{
ÂÂÂÂ/* ensure that the network is initialized */
ÂÂÂÂInit();

ÂÂÂÂ/* store local variables */
ÂÂÂÂ_sockfd = -1;
ÂÂÂÂ_request = request;
ÂÂÂÂ_hostName = _request.substr(7,_request.find_first_of('/',7) - 7);
ÂÂÂÂ_path = request.substr(_hostName.size() + 7,string::npos);
}

void NetworkRequest::Connect()
{
ÂÂÂÂstruct hostent *he;
ÂÂÂÂstruct sockaddr_in sa;

ÂÂÂÂs32 ret;

ÂÂÂÂ/* Ensure that the socket is disconnected */
ÂÂÂÂDisconnect();

ÂÂÂÂ/* Create socket */
ÂÂÂÂ_sockfd = net_socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
ÂÂÂÂif (_sockfd < 0)
ÂÂÂÂÂÂÂÂthrow new Exception("Error creating a socket!",_sockfd);

ÂÂÂÂ/* Get host by name */
ÂÂÂÂhe = net_gethostbyname(_hostName.c_str());
ÂÂÂÂif (!he)
ÂÂÂÂÂÂÂÂthrow new Exception("Can't find the host!",-1);

ÂÂÂÂ/* Setup socket */
ÂÂÂÂmemcpy(&sa.sin_addr, he->h_addr_list[0], he->h_length);
ÂÂÂÂsa.sin_family = AF_INET;
ÂÂÂÂsa.sin_port = htons(80);

ÂÂÂÂret = net_connect(_sockfd, (struct sockaddr *)&sa, sizeof(sa));
ÂÂÂÂif (ret < 0)
ÂÂÂÂÂÂÂÂthrow new Exception("Can't connect to the socket!",ret);
}

void NetworkRequest:isconnect()
{
ÂÂÂÂif (_sockfd >= 0)
ÂÂÂÂ{
ÂÂÂÂÂÂÂÂnet_close(_sockfd);
ÂÂÂÂÂÂÂÂ_sockfd = -1;
ÂÂÂÂ}
}

NetworkRequest::~NetworkRequest()
{
ÂÂÂÂDisconnect();
}

u32 NetworkRequest::Read(void *buffer, u32 len)
{
ÂÂÂÂu32 read = 0, ret = 0;

ÂÂÂÂ/* Data to be read */
ÂÂÂÂfor (read = 0; read < len; read += ret) {
ÂÂÂÂÂÂÂÂu32 size;

ÂÂÂÂÂÂÂÂ/* Size to read */
ÂÂÂÂÂÂÂÂsize = len - read;
ÂÂÂÂÂÂÂÂif (size > NETWORK_BLOCK_SIZE)
ÂÂÂÂÂÂÂÂÂÂÂÂsize = NETWORK_BLOCK_SIZE;

ÂÂÂÂÂÂÂÂ/* Read network data */
ÂÂÂÂÂÂÂÂret = net_recv(_sockfd, (char*)buffer + read, size, 0);
ÂÂÂÂÂÂÂÂif (ret < 0)
ÂÂÂÂÂÂÂÂÂÂÂÂthrow new Exception("Can't read from the net socket!",ret);

ÂÂÂÂÂÂÂÂ/* Read finished */
ÂÂÂÂÂÂÂÂif (!ret)
ÂÂÂÂÂÂÂÂÂÂÂÂbreak;
ÂÂÂÂ}

ÂÂÂÂreturn read;
}

void NetworkRequest::Write(const void *buffer, u32 len)
{
ÂÂÂÂu32 ret = 0, written = 0;

ÂÂÂÂ/* Data to be written */
ÂÂÂÂfor (written = 0; written < len; written += ret) {
ÂÂÂÂÂÂÂÂu32 size;

ÂÂÂÂÂÂÂÂ/* Size to read */
ÂÂÂÂÂÂÂÂsize = len - written;
ÂÂÂÂÂÂÂÂif (size > NETWORK_BLOCK_SIZE)
ÂÂÂÂÂÂÂÂÂÂÂÂsize = NETWORK_BLOCK_SIZE;

ÂÂÂÂÂÂÂÂ/* Write network data */
ÂÂÂÂÂÂÂÂret = net_send(_sockfd, (char*)buffer + written, size, 0);
ÂÂÂÂÂÂÂÂif (ret < 0)
ÂÂÂÂÂÂÂÂÂÂÂÂthrow new Exception("Can't write into the net socket!",ret);

ÂÂÂÂÂÂÂÂ/* Write finished */
ÂÂÂÂÂÂÂÂif (!ret)
ÂÂÂÂÂÂÂÂÂÂÂÂbreak;
ÂÂÂÂ}
}

u32 NetworkRequest::GetResponseLength()
{
ÂÂÂÂchar buf[1024], *ptr = NULL;
ÂÂÂÂu32ÂÂlen;
ÂÂÂÂs32ÂÂret;

ÂÂÂÂstring totalRequest = "GET " + _path + " HTTP/1.1\r\nHost: " + _hostName + "\r\nConnection: close\r\n\r\n";

ÂÂÂÂ/* send request */
ÂÂÂÂret = net_send(_sockfd, totalRequest.c_str(), totalRequest.length(), 0);
ÂÂÂÂif(ret < 0)
ÂÂÂÂÂÂÂÂthrow new Exception("Impossible to send the request to the host!",ret);

ÂÂÂÂ/* Clear buffer */
ÂÂÂÂmemset(buf, 0, sizeof(buf));

ÂÂÂÂ/* Read HTTP header */
ÂÂÂÂfor (u32 cnt = 0; !strstr(buf, "\r\n\r\n"); cnt++)
ÂÂÂÂÂÂÂÂif (net_recv(_sockfd, buf + cnt, 1, 0) 0)
ÂÂÂÂ{
ÂÂÂÂÂÂÂÂ_buffer = (void*)new char[size];
ÂÂÂÂÂÂÂÂmemcpy(_buffer,buffer, size);
ÂÂÂÂ}
ÂÂÂÂelse
ÂÂÂÂÂÂÂÂ_buffer = NULL;
}

NetworkResponse::NetworkResponse(const NetworkResponse &src)
{
ÂÂÂÂ_size = src.Size();
ÂÂÂÂ_buffer = (void*)new char[_size];
ÂÂÂÂmemcpy(_buffer,src.Content(), _size);
}

NetworkResponse& NetworkResponse::operator=(const NetworkResponse &src)
{
ÂÂÂÂif(_buffer != NULL)
ÂÂÂÂ{
ÂÂÂÂÂÂÂÂdelete[] (char*)_buffer;
ÂÂÂÂÂÂÂÂ_buffer = NULL;
ÂÂÂÂ}

ÂÂÂÂ_buffer = (void*)new char[src.Size()];
ÂÂÂÂmemcpy(_buffer,src.Content(), src.Size());
ÂÂÂÂ_size = src.Size();

ÂÂÂÂreturn *this;
}

NetworkResponse::~NetworkResponse()
{
ÂÂÂÂif(_buffer != NULL)
ÂÂÂÂ{
ÂÂÂÂÂÂÂÂdelete[] (char*)_buffer;
ÂÂÂÂÂÂÂÂ_buffer = NULL;
ÂÂÂÂ}
}

u64 NetworkResponse::Size() const
{
ÂÂÂÂreturn _size;
}

void* NetworkResponse::Content() const
{
ÂÂÂÂreturn _buffer;
}

 

[Da-Bomb1]

I would HIGHLY recommend that you go elsewhere with this question, the number of actual programmers on GBAtemp is almost negligible.

(That said, I have zero experience with Wii programming, so I can't help you there.

)

 

[arasium]

Yes i know, but i dont know where to post this.... I've tried on other forums, but they aren't programmer too (or they aren't good programmers, so they can't answer me)....

 

[Zantom07]

Try the wiibrew forum > here.

Hopefully they can help.

 

[flyguy]

hehe it is .org not .com

go here
There are some amazingly talented coders there and they can help you

 

[arasium]

I've already posted here, and nobody answer me.

 

[Senbonzaku101]

http://forum.wiibrew.org/list.php?11