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#pragma once
// io/fd.hpp - typesafe (but not scopesafe) file descriptors
//
// Copyright © 2014 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
#include "fwd.hpp"
#include <sys/select.h>
#include <sys/socket.h>
#include "../strings/fwd.hpp"
namespace tmwa
{
namespace io
{
class FD
{
private:
int fd;
explicit
FD(int f)
: fd(f)
{}
public:
FD()
: fd(-1)
{}
int uncast_dammit() { return fd; }
static
FD cast_dammit(int f) { return FD(f); }
static
FD stdin() { return FD(0); }
static
FD stdout() { return FD(1); }
static
FD stderr() { return FD(2); }
static
FD open(ZString path, int flags, int mode=0666);
static
FD socket(int domain, int type, int protocol);
FD accept(struct sockaddr *addr, socklen_t *addrlen);
static
int pipe(FD& r, FD& w);
static
int pipe2(FD& r, FD& w, int flags);
static
FD sysconf_SC_OPEN_MAX();
FD next() { return FD(fd + 1); }
FD prev() { return FD(fd - 1); }
ssize_t read(void *buf, size_t count);
ssize_t write(const void *buf, size_t count);
ssize_t pread(void *buf, size_t count, off_t offset);
ssize_t pwrite(const void *buf, size_t count, off_t offset);
ssize_t readv(const struct iovec *iov, int iovcnt);
ssize_t writev(const struct iovec *iov, int iovcnt);
ssize_t preadv(const struct iovec *iov, int iovcnt, off_t offset);
ssize_t pwritev(const struct iovec *iov, int iovcnt, off_t offset);
int close();
int shutdown(int);
int getsockopt(int level, int optname, void *optval, socklen_t *optlen);
int setsockopt(int level, int optname, const void *optval, socklen_t optlen);
// ...
int fcntl(int cmd);
int fcntl(int cmd, int arg);
int fcntl(int cmd, void *arg);
int listen(int backlog);
int bind(const struct sockaddr *addr, socklen_t addrlen);
int connect(const struct sockaddr *addr, socklen_t addrlen);
FD dup();
FD dup2(FD newfd);
FD dup3(FD newfd, int flags);
friend
bool operator == (FD l, FD r)
{
return l.fd == r.fd;
}
friend
bool operator != (FD l, FD r)
{
return l.fd != r.fd;
}
friend
bool operator < (FD l, FD r)
{
return l.fd < r.fd;
}
friend
bool operator <= (FD l, FD r)
{
return l.fd <= r.fd;
}
friend
bool operator > (FD l, FD r)
{
return l.fd > r.fd;
}
friend
bool operator >= (FD l, FD r)
{
return l.fd >= r.fd;
}
};
class FD_Set
{
private:
fd_set fds;
public:
FD_Set()
{
FD_ZERO(&fds);
}
void clr(FD fd)
{
DIAG_PUSH();
DIAG_I(old_style_cast);
FD_CLR(fd.uncast_dammit(), &fds);
DIAG_POP();
}
bool isset(FD fd)
{
DIAG_PUSH();
DIAG_I(old_style_cast);
return FD_ISSET(fd.uncast_dammit(), &fds);
DIAG_POP();
}
void set(FD fd)
{
DIAG_PUSH();
DIAG_I(old_style_cast);
FD_SET(fd.uncast_dammit(), &fds);
DIAG_POP();
}
static
int select(int nfds, FD_Set *readfds, FD_Set *writefds, FD_Set *exceptfds, struct timeval *timeout);
static
int pselect(int nfds, FD_Set *readfds, FD_Set *writefds, FD_Set *exceptfds, const struct timespec *timeout, const sigset_t *sigmask);
};
} // namespace io
} // namespace tmwa
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