Request*
IOProcess::addNewRequest(const char *cmd)
{
if( !cmd ) {
return NULL;
}
Request* new_req = new Request(cmd);
ASSERT(new_req);
dprintf( D_PERF_TRACE, "request #%d (%s): dispatch\n",
new_req->m_reqid, new_req->m_args.argv[0] );
// check if there is available worker process
Worker *worker = findFreeWorker();
if( !worker ) {
// There is no available worker
if( m_max_workers == -1 || m_avail_workers_num < m_max_workers ) {
worker = createNewWorker();
}
}
addRequestToWorker(new_req, worker);
return new_req;
}
bool
IOProcess::startUp(int stdin_pipe, int min_workers, int max_workers)
{
m_min_workers = min_workers;
m_max_workers = max_workers;
m_stdin_buffer.setPipeEnd(stdin_pipe);
// Create initial worker processes
int i = 0;
for( i = 0; i < m_min_workers; i++ ) {
if( createNewWorker() == NULL ) {
dprintf(D_ALWAYS, "Failed to create initial workers\n");
dprintf(D_ALWAYS, "Exiting....\n");
io_process_exit(1);
}
}
return true;
}
Request*
IOProcess::addNewRequest(const char *cmd)
{
if( !cmd ) {
return NULL;
}
Request* new_req = new Request(cmd);
ASSERT(new_req);
// check if there is available worker process
Worker *worker = findFreeWorker();
if( !worker ) {
// There is no available worker
if( m_max_workers == -1 || m_avail_workers_num < m_max_workers ) {
worker = createNewWorker();
}
}
addRequestToWorker(new_req, worker);
return new_req;
}
