NAME¶
ixp_sendmsg, ixp_recvmsg
SYNOPSIS¶
#include <ixp.h>
uint ixp_sendmsg(int fd, IxpMsg *msg);
uint ixp_recvmsg(int fd, IxpMsg *msg);
DESCRIPTION¶
These functions read and write messages to and from the given file descriptors.
ixp_sendmsg writes the data at
msg->pos upto
msg->end. If
the call returns non-zero, all data is assured to have been written.
ixp_recvmsg first reads a 32 bit, little-endian length from
fd and then
reads a message of that length (including the 4 byte size specifier) into the
buffer at
msg->data, so long as the size is less than
msg->size.
RETURN VALUE¶
These functions return the number of bytes read or written, or 0 on error.
Errors are stored in
ixp_errbuf(3).