#include <sipc.h>
#include <windows.h>

static CSIPCClient sipc;

BOOL APIENTRY DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
	return TRUE;
}

int WINAPI Connect(const char* name) {
	return sipc.Connect(name);
}

int WINAPI Disconnect() {
	return sipc.Disconnect();
}

int WINAPI Send(const char* command, char* result, const int len) {
	return sipc.Send(command,result,len);
}


int CSIPCClient::Send(const char* command, char* result, const int len) {
	if (hSend==INVALID_HANDLE_VALUE || hReceive==INVALID_HANDLE_VALUE) return -1;

	memset(result,0,len);

	string s=command;
	s=selfname+"\t"+s;

	DWORD numwrite,numread;
	if (!WriteFile(hSend,s.c_str(),s.size(),&numwrite,NULL)) return -1;
	if (result!=NULL) {
		if (!ReadFile(hReceive,result,len,&numread,NULL)) return -1;
	}

	return 0;
}

int CSIPCClient::Disconnect() {
	if (hReceive!=INVALID_HANDLE_VALUE) {
		CloseHandle(hReceive);
		hReceive=INVALID_HANDLE_VALUE;
	}
	if (hSend!=INVALID_HANDLE_VALUE) {
		CloseHandle(hSend);
		hSend=INVALID_HANDLE_VALUE;
	}

	return 0;
}

int CSIPCClient::Connect(const char* name) {
	selfname=name;
	string slotname="\\\\.\\mailslot\\"+selfname;

	hReceive=CreateMailslot(slotname.c_str(),MESSAGESIZEMAX,MAILSLOT_WAIT_FOREVER,NULL);
	if (hReceive==INVALID_HANDLE_VALUE) return -1;

	hSend=CreateFile("\\\\.\\mailslot\\Stand",GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
	if (hSend==INVALID_HANDLE_VALUE) return -1;

	return 0;
}

CSIPCClient::CSIPCClient() {
	selfname = "";
	hSend = INVALID_HANDLE_VALUE;
	hReceive = INVALID_HANDLE_VALUE;
}

CSIPCClient::~CSIPCClient() {
	Disconnect();
}