void strfree(const char *s)
{
sp_item_t *item,*key;
if (!s)
return;
if (!stringpool)
return;
mutexLock(&sp_mutex);
key = (sp_item_t *)(s - offsetof(sp_item_t, str));
if ((item = (sp_item_t *)arrayFind(stringpool, key)) != NULL &&
item == key)
{
item->ref_count --;
if (!item->ref_count)
{
arrayRemove(stringpool, item);
free(item);
}
}
mutexUnlock(&sp_mutex);
}
/**
* Removes stale file descriptors and initializes file descriptor sets.
*/
static void prepareForSelect(Selector* selector) {
fd_set* exceptFds = &selector->exceptFds;
fd_set* readFds = &selector->readFds;
fd_set* writeFds = &selector->writeFds;
FD_ZERO(exceptFds);
FD_ZERO(readFds);
FD_ZERO(writeFds);
Array* selectableFds = selector->selectableFds;
int i = 0;
selector->maxFd = 0;
int size = arraySize(selectableFds);
while (i < size) {
SelectableFd* selectableFd = arrayGet(selectableFds, i);
if (selectableFd->remove) {
// This descriptor should be removed.
arrayRemove(selectableFds, i);
size--;
if (selectableFd->onRemove != NULL) {
selectableFd->onRemove(selectableFd);
}
free(selectableFd);
} else {
if (selectableFd->beforeSelect != NULL) {
selectableFd->beforeSelect(selectableFd);
}
bool inSet = false;
if (maybeAdd(selectableFd, selectableFd->onExcept, exceptFds)) {
LOGD("Selecting fd %d for writing...", selectableFd->fd);
inSet = true;
}
if (maybeAdd(selectableFd, selectableFd->onReadable, readFds)) {
LOGD("Selecting fd %d for reading...", selectableFd->fd);
inSet = true;
}
if (maybeAdd(selectableFd, selectableFd->onWritable, writeFds)) {
inSet = true;
}
if (inSet) {
// If the fd is in a set, check it against max.
int fd = selectableFd->fd;
if (fd > selector->maxFd) {
selector->maxFd = fd;
}
}
// Move to next descriptor.
i++;
}
}
}
