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#include <stdlib.h>
#include <stdio.h>
#include "basic_event_loop.h"
#define NOT_IMPLEMENTED printf("%s not implemented\n", __func__);
static SpiceCoreInterface core;
static SpiceTimer* timer_add(SpiceTimerFunc func, void *opaque)
{
NOT_IMPLEMENTED
}
static void timer_start(SpiceTimer *timer, uint32_t ms)
{
NOT_IMPLEMENTED
}
static void timer_cancel(SpiceTimer *timer)
{
NOT_IMPLEMENTED
}
static void timer_remove(SpiceTimer *timer)
{
NOT_IMPLEMENTED
}
struct SpiceWatch {
int id;
};
typedef struct Watch {
SpiceWatch id;
int fd;
int event_mask;
SpiceWatchFunc func;
void *opaque;
} Watch;
Watch watches[100];
int watch_count = 0;
int next_id = 1;
static SpiceWatch *watch_add(int fd, int event_mask, SpiceWatchFunc func, void *opaque)
{
watches[watch_count].fd = fd;
watches[watch_count].event_mask = event_mask;
watches[watch_count].func = func;
watches[watch_count].opaque = opaque;
watches[watch_count].id.id = next_id++;
return &watches[watch_count++].id;
}
static void watch_update_mask(SpiceWatch *watch, int event_mask)
{
int i;
Watch *my_watch;
for (i = 0 ; i < watch_count; ++i) {
if (watches[i].id.id == watch->id) {
my_watch = &watches[i];
if (my_watch->event_mask != event_mask) {
my_watch->event_mask = event_mask;
}
return;
}
}
}
static void watch_remove(SpiceWatch *watch)
{
int i;
for (i = 0 ; i < watch_count ; ++i) {
if (watches[i].id.id == watch->id) {
watches[i] = watches[--watch_count];
return;
}
}
}
static void channel_event(int event, SpiceChannelEventInfo *info)
{
NOT_IMPLEMENTED
}
void basic_event_loop_mainloop(void)
{
fd_set rfds, wfds;
int max_fd = -1;
int i;
int retval;
while (1) {
FD_ZERO(&rfds);
FD_ZERO(&wfds);
for (i = 0 ; i < watch_count; ++i) {
Watch* watch = &watches[i];
if (watch->event_mask & SPICE_WATCH_EVENT_READ) {
FD_SET(watch->fd, &rfds);
max_fd = watch->fd > max_fd ? watch->fd : max_fd;
}
if (watch->event_mask & SPICE_WATCH_EVENT_WRITE) {
FD_SET(watch->fd, &wfds);
max_fd = watch->fd > max_fd ? watch->fd : max_fd;
}
}
retval = select(max_fd + 1, &rfds, &wfds, NULL, NULL);
if (retval == -1) {
printf("error in select - exiting\n");
exit(-1);
}
if (retval) {
for (i = 0 ; i < watch_count; ++i) {
Watch* watch = &watches[i];
if ((watch->event_mask & SPICE_WATCH_EVENT_READ) && FD_ISSET(watch->fd, &rfds)) {
watch->func(watch->fd, SPICE_WATCH_EVENT_READ, watch->opaque);
}
if ((watch->event_mask & SPICE_WATCH_EVENT_WRITE) && FD_ISSET(watch->fd, &wfds)) {
watch->func(watch->fd, SPICE_WATCH_EVENT_WRITE, watch->opaque);
}
}
}
}
}
SpiceCoreInterface *basic_event_loop_init(void)
{
bzero(&core, sizeof(core));
core.base.major_version = SPICE_INTERFACE_CORE_MAJOR;
core.base.minor_version = SPICE_INTERFACE_CORE_MINOR; // anything less then 3 and channel_event isn't called
core.timer_add = timer_add;
core.timer_start = timer_start;
core.timer_cancel = timer_cancel;
core.timer_remove = timer_remove;
core.watch_add = watch_add;
core.watch_update_mask = watch_update_mask;
core.watch_remove = watch_remove;
core.channel_event = channel_event;
return &core;
}
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