Using pipe in Eclipse - c++

Question

I'm trying to compile my code in Eclipse
But it wouldnt compile my pipe use.
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <syslog.h>
#include <signal.h>
#include <map>
#include <string>
#include <iostream>
#include <sstream>
#include <fstream>
#include <sys/wait.h>
using namespace std;
int OpenPipeRead(string sinterface)
{
int ret_val,errno;
string lpipename="",lpipepath="";
lpipepath = mconfig[C_PIPEPATH];
lpipename.append(lpipepath); //Its not empty only when there is argument for parallal telepath_sniff instances.
lpipename.append(mconfig[C_PIPENAME]);
if(strcmp(sinterface.c_str(), "") != 0)
lpipename.append("_" + sinterface);
printf("Trying to open Pipe for reading\n");
syslog(LOG_INFO, "Try to open Pipe for reading\n");
/* Create the named - pipe */
ret_val = mkfifo(lpipename.c_str(), 0666);
if ((ret_val == -1) && (errno != EEXIST)) {
perror("Error creating the named pipe");
syslog(LOG_ERR, "Error creating the named pipe");
exit(1);
}
if((pipehandler = open(lpipename.c_str(), O_RDWR)) < 1) /* Open the pipe for reading and writing , in append mode */
{
perror("Failed to open pipe file");
syslog(LOG_ERR, "Failed to open pipe file");
exit(1);
}
printf("Pipe opened.\n");
syslog(LOG_INFO, "Pipe opened.\n");
}
int main(){
OpenPipeRead("arg");
}
errors are :
../src/main.cpp:325: error: ‘EEXIST’ was not declared in this scope
../src/main.cpp:330: error: ‘O_RDWR’ was not declared in this scope
../src/main.cpp:330: error: ‘open’ was not declared in this scope
It does compile outside of Eclipse
Any includes or flags I need to compile with on Eclipse?
Thanks

Answer 1

The EEXIST MACRO is defined in asm-generic/errno-base.h and the O_RDWR Flag is defined in fcntl.h.
Add :
#include <asm-generic/errno-base.h>
#include <fcntl.h>
To the file containing OpenPipeRead definition and it should compile.