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This patch generalizes the select-based file descriptor infrastructure
by allowing you to register file descriptors and its callbacks. Instead
of hardcoding the descriptors that needs to be checked.
Now, struct fds_item contains a callback and pointer to data that is
passed to it:
struct fds_item {
struct list_head head;
int fd;
+ void (*cb)(void *data);
+ void *data;
};
Then, we check which ones are active in the select_main_step() function:
list_for_each_entry(cur, &STATE(fds)->list, head) {
if (FD_ISSET(cur->fd, &readfds))
cur->cb(cur->data);
}
And it invoked the corresponding callback.
I had to slightly modify the channel infrastructure to fit it into
the changes.
This modularity is required for the upcoming cthelper support.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch fixes a missing calculation of maxfd when a file descriptor
is unregistered.
Reported-by: Jean Mickael Guerin <jean-mickael.guerin@6wind.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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With this patch, we can remove file descriptors dinamically
from our own file descriptor pool.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch removes an unused array of file descriptors inside the
fds structure.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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only which is incompatible AFAIK
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has been Max Kellermann and has no issues with relicensing their contributions.
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