/**
* Called after reading a command byte to pull in its parameters and
* then setup to execute the command.
*/
static rs_result rs_patch_s_params(rs_job_t *job)
{
rs_result result;
int len = job->cmd->len_1 + job->cmd->len_2;
void *p;
assert(len);
result = rs_scoop_readahead(job, len, &p);
if (result != RS_DONE)
return result;
/* we now must have LEN bytes buffered */
result = rs_suck_netint(job, &job->param1, job->cmd->len_1);
/* shouldn't fail, since we already checked */
assert(result == RS_DONE);
if (job->cmd->len_2) {
result = rs_suck_netint(job, &job->param2, job->cmd->len_2);
assert(result == RS_DONE);
}
job->statefn = rs_patch_s_run;
return RS_RUNNING;
}
/** Read LEN bytes if possible, and remove them from the input scoop.
*
* \param *job An rs_job_t pointer to the job instance.
*
* \param len The length of the data in the ptr buffer.
*
* \param **ptr will be updated to point to a read-only buffer holding the
* data, if enough is available.
*
* \return RS_DONE if there was enough data, RS_BLOCKED if there was not enough
* data yet, or RS_INPUT_ENDED if there was not enough data and at EOF. */
rs_result rs_scoop_read(rs_job_t *job, size_t len, void **ptr)
{
rs_result result;
result = rs_scoop_readahead(job, len, ptr);
if (result == RS_DONE)
rs_scoop_advance(job, len);
return result;
}
