fpm_events.h

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    /* (c) 2007,2008 Andrei Nigmatulin */
 
#ifndef FPM_EVENTS_H
#define FPM_EVENTS_H 1
 
#define FPM_EV_TIMEOUT  (1 << 0)
#define FPM_EV_READ     (1 << 1)
#define FPM_EV_PERSIST  (1 << 2)
#define FPM_EV_EDGE     (1 << 3)
 
#define fpm_event_set_timer(ev, flags, cb, arg) fpm_event_set((ev), -1, (flags), (cb), (arg))
 
struct fpm_event_s {
    int fd;                   /* not set with FPM_EV_TIMEOUT */
    struct timeval timeout;   /* next time to trigger */
    struct timeval frequency;
    void (*callback)(struct fpm_event_s *, short, void *);
    void *arg;
    int flags;
    int index;                /* index of the fd in the ufds array */
    short which;              /* type of event */
};
 
typedef struct fpm_event_queue_s {
    struct fpm_event_queue_s *prev;
    struct fpm_event_queue_s *next;
    struct fpm_event_s *ev;
} fpm_event_queue;
 
struct fpm_event_module_s {
    const char *name;
    int support_edge_trigger;
    int (*init)(int max_fd);
    int (*clean)(void);
    int (*wait)(struct fpm_event_queue_s *queue, unsigned long int timeout);
    int (*add)(struct fpm_event_s *ev);
    int (*remove)(struct fpm_event_s *ev);
};
 
void fpm_event_loop(int err);
void fpm_event_fire(struct fpm_event_s *ev);
int fpm_event_init_main(void);
int fpm_event_set(struct fpm_event_s *ev, int fd, int flags, void (*callback)(struct fpm_event_s *, short, void *), void *arg);
int fpm_event_add(struct fpm_event_s *ev, unsigned long int timeout);
int fpm_event_del(struct fpm_event_s *ev);
int fpm_event_pre_init(char *mechanism);
const char *fpm_event_mechanism_name(void);
int fpm_event_support_edge_trigger(void);
 
#endif