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