jprocessinputstream.cpp
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/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "Stdafx.h"
#include "jprocessinputstream.h"
using namespace std;
namespace jshared {
#ifdef _WIN32
ProcessInputStream::ProcessInputStream(HANDLE fd):
#else
ProcessInputStream::ProcessInputStream(int fd):
#endif
jcommon::Object()
{
jcommon::Object::SetClassName("jshared::ProcessInputStream");
_fd = fd;
}
ProcessInputStream::~ProcessInputStream()
{
}
bool ProcessInputStream::IsEmpty()
{
return false;
}
int64_t ProcessInputStream::Available()
{
return 0LL;
}
int64_t ProcessInputStream::GetSize()
{
return 0LL;
}
int64_t ProcessInputStream::GetPosition()
{
return 0LL;
}
int64_t ProcessInputStream::Read()
{
int64_t r;
char byte;
if ((r = Read(&byte, 1LL)) <= 0LL) {
return -1LL;
}
return (int64_t)byte;
}
int64_t ProcessInputStream::Read(char *data, int64_t size)
{
#ifdef _WIN32
DWORD n;
if (IsBlocking() == true) {
if (ReadFile(_fd, data, sizeof(buffer), &n, NULL) == TRUE) {
return (int64_t)n;
}
} else {
if (!PeekNamedPipe(_fd, NULL, 0, NULL, &n, NULL) || n == 0) {
return 0LL;
}
if (ReadFile(_fd, data, sizeof(buffer), &n, NULL) == TRUE) {
return (int64_t)n;
}
}
return -1LL;
#else
if (IsBlocking() == true) {
return ::read(_fd, data, size);
} else {
struct timeval t;
fd_set readfs;
FD_ZERO(&readfs);
FD_SET(_fd, &readfs);
t.tv_sec = 1LL;
t.tv_usec = 0LL;
if (select(_fd+1, &readfs, NULL, NULL, &t) < 0) {
return -1LL;
}
if (FD_ISSET(_fd, &readfs)) {
return ::read(_fd, data, size);
}
}
return -1LL;
#endif
}
void ProcessInputStream::Skip(int64_t skip)
{
}
void ProcessInputStream::Reset()
{
}
void ProcessInputStream::Close()
{
#ifdef _WIN32
CloseHandle(_fd);
#else
::close(_fd);
#endif
}
bool ProcessInputStream::IsClosed()
{
return false;
}
int64_t ProcessInputStream::GetReadedBytes()
{
return 0LL;
}
}