static void write_result(int msg_sock, const char *result)
{
int skip = 0;
if (result == NULL || msg_sock < 0)
return;
do
{
int rv;
do
rv = os_send(msg_sock, result + skip, strlen(result) - skip);
while (rv == -EINTR);
if (rv < 0 && rv != -EAGAIN)
{
exalog_error("Error '%s' while sending result '%s'",
exa_error_msg(rv), result);
break;
}
if (rv > 0)
skip += rv;
} while (skip < strlen(result));
}
/**
* Send header and buffer if any
*
* @param[in] fd socket in which to perform the send
* @param[in] request the request describing the send operation
*
* @return DATA_TRANSFER_ERROR socket invalid or closed.
* DATA_TRANSFER_COMPLETE if successfully transferred all pending
* data (header and buffer if any)
* DATA_TRANSFER_PENDING if some remaining data to transfer
*/
static int request_send(int fd, struct pending_request *request)
{
int ret;
if (request->nb_readwrite < sizeof(payload_t))
{
const void *buffer = request->payload + request->nb_readwrite;
int size = sizeof(payload_t) - request->nb_readwrite;
do
ret = os_send(fd, buffer, size);
while (ret == -EINTR);
}
else
{
const void *buffer = request->payload->buffer
+ request->nb_readwrite - sizeof(payload_t);
int size = request->payload->size2
- (request->nb_readwrite - sizeof(payload_t));
do
ret = os_send(fd, buffer, size);
while (ret == -EINTR);
}
/* XXX For some unknown reason, the send can return 0 here, and I cannot
* figure out why.... For now I just ignore it an treat it as 'normal' but
* we should probably pay attention to this... */
if (ret < 0)
return DATA_TRANSFER_ERROR;
request->nb_readwrite += ret;
if (request->nb_readwrite < sizeof(payload_t) + request->payload->size2)
return DATA_TRANSFER_PENDING;
return DATA_TRANSFER_COMPLETE;
}
void tc_send(ec_tframe_tc_send_t * frame)
{
NEW_CONTEXT;
os_send(&send_cb, ctx, frame->handle, frame->buffer, frame->len);
}
