NAME

       iob_init - initialize new I/O batch

SYNTAX

       #include <libowfat/iob.h>

       int iob_init(io_batch* b,size_t hint_entries);

DESCRIPTION

       iob_init  initializes *b with enough space allocated for hint_entries entries (buffers or files). This is
       purely a performance hint, if you are unsure just pass 1.

       You can add buffers, strings and files to an I/O batch and then send it all at once using iob_send.

       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).

RETURN VALUE

       iob_init returns 0 on success. If there was a memory allocation error, it returns -1 instead.

SEE ALSO

       iob_new(3),   iob_init_autofree(3),   iob_reset(3),   iob_send(3),    iob_addbuf(3),    iob_adds_free(3),
       iob_addfile(3)

                                                                                                     iob_init(3)