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#ifndef _BSC_SELECT_H
#define _BSC_SELECT_H
#include <osmocom/core/linuxlist.h>
/*! \file select.h
* \brief select loop abstraction
*/
/*! \brief Indicate interest in reading from the file descriptor */
#define BSC_FD_READ 0x0001
/*! \brief Indicate interest in writing to the file descriptor */
#define BSC_FD_WRITE 0x0002
/*! \brief Indicate interest in exceptions from the file descriptor */
#define BSC_FD_EXCEPT 0x0004
/*! \brief Structure representing a file dsecriptor */
struct osmo_fd {
/*! linked list for internal management */
struct llist_head list;
/*! actual operating-system level file decriptor */
int fd;
/*! bit-mask or of \ref BSC_FD_READ, \ref BSC_FD_WRITE and/or
* \ref BSC_FD_EXCEPT */
unsigned int when;
/*! call-back function to be called once file descriptor becomes
* available */
int (*cb)(struct osmo_fd *fd, unsigned int what);
/*! data pointer passed through to call-back function */
void *data;
/*! private number, extending \a data */
unsigned int priv_nr;
};
/*! \brief Register a new file descriptor with select loop abstraction
* \param[in] fd osmocom file descriptor to be registered
*/
int osmo_fd_register(struct osmo_fd *fd);
/*! \brief Unregister a file descriptor from select loop abstraction
* \param[in] fd osmocom file descriptor to be unregistered
*/
void osmo_fd_unregister(struct osmo_fd *fd);
/*! \brief select main loop integration
* \param[in] polling should we pollonly (1) or block on select (0)
*/
int osmo_select_main(int polling);
#endif /* _BSC_SELECT_H */
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