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/* tf.h - libtf io header
*
* Copyright (C) 2009 Timo Teräs <timo.teras@iki.fi>
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 or later as
* published by the Free Software Foundation.
*
* See http://www.gnu.org/ for details.
*/
#ifndef TF_IO_H
#define TF_IO_H
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/in.h>
#include <libtf/defines.h>
/* Flags for tf_open_fd() */
#define TF_FD_AUTOCLOSE 1
#define TF_FD_STREAM_ORIENTED 2
#define TF_FD_SET_CLOEXEC 4
#define TF_FD_ALREADY_NONBLOCKING 8
struct tf_sockaddr {
union {
struct sockaddr addr;
struct sockaddr_in in;
struct sockaddr_in6 in6;
} u;
};
struct tf_fd {
int fd;
unsigned int flags;
/* Single waiter -- would be relatively trivial to modify to allow
* multiple waiters, if someone actually needs it */
unsigned int events;
void *waiting_fiber;
};
#define TF_POLL_READ 1
#define TF_POLL_WRITE 2
struct tf_poll_hooks {
void (*init)(void);
int (*poll)(tf_mtime_diff_t timeout);
void (*close)(void);
int (*fd_created)(struct tf_fd *fd);
int (*fd_destroyed)(struct tf_fd *fd);
void (*fd_monitor)(struct tf_fd *fd, int events);
void (*fd_unmonitor)(struct tf_fd *fd);
};
int tf_open_fd(struct tf_fd *fd, int kfd, int flags);
int tf_open(struct tf_fd *fd, const char *pathname, int flags);
int tf_close(struct tf_fd *fd);
ssize_t tf_read(struct tf_fd *fd, void *buf, size_t count);
ssize_t tf_write(struct tf_fd *fd, const void *buf, size_t count);
int tf_read_fully(struct tf_fd *fd, void *buf, size_t count);
int tf_write_fully(struct tf_fd *fd, const void *buf, size_t count);
int tf_socket(struct tf_fd *fd, int domain, int type, int protocol);
int tf_bind(struct tf_fd *fd, const struct tf_sockaddr *addr);
int tf_listen(struct tf_fd *fd, int backlog);
int tf_accept(struct tf_fd *listen_fd, struct tf_fd *child_fd,
struct tf_sockaddr *from);
int tf_connect(struct tf_fd *fd, const struct tf_sockaddr *addr);
ssize_t tf_recvmsg(struct tf_fd *fd,
struct tf_sockaddr *from, struct tf_sockaddr *to,
void *buf, size_t count);
ssize_t tf_sendmsg(struct tf_fd *fd,
struct tf_sockaddr *from, const struct tf_sockaddr *to,
const void *buf, size_t count);
int tf_query_dns(const char *name, int num_res, struct tf_sockaddr *res);
#endif
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