io_finishandshutdown(3) Library Functions Manual io_finishandshutdown(3)NAME
io_finishandshutdown - deallocate internal data structures
SYNTAX
#include <io.h>
void io_finishandshutdown();
DESCRIPTION
io_finishandshutdown deallocates the internal data structures of io_wait(). This only makes sense if you run your program in a malloc
checker and want to eliminate the false alarms. Your OS will free data structures automatically on process termination.
SEE ALSO io_wait(3)io_finishandshutdown(3)
Check Out this Related Man Page
iob_send(3) Library Functions Manual iob_send(3)NAME
iob_send - send I/O batch
SYNTAX
#include <iob.h>
int64 iob_send(int64 s,io_batch* b);
DESCRIPTION
iob_send sends the (rest of) b over the socket s.
iob_send returns the number of bytes written, 0 if there were no more bytes to be written in the batch, -1 for EAGAIN, or -3 for a perma-
nent error (for example "connection reset by peer").
The normal usage pattern is using io_wait to know when a descriptor is writable, and then calling iob_send until it returns 0, -1 or -3.
If it returns 0, terminate the loop (everything was written OK). If it returns -1, call io_wait again. If it returned -3, signal an error
and close the socket.
The benefit of the I/O batch API is that it exploits platform specific APIs like FreeBSD's sendfile. The file contents will always be sent
in a way that allows the operating systems to perform zero copy TCP, and the buffers will always be sent using as few syscalls as possible
and avoiding unnecessary copying (using writev).
SEE ALSO iob_reset(3), iob_send(3), iob_addbuf(3), iob_adds_free(3), iob_addfile(3), iob_prefetch(3)iob_send(3)
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