tmux/server-job.c

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/* $Id: server-job.c,v 1.2 2009-10-28 23:14:15 tcunha Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <unistd.h>
#include "tmux.h"
/* Register jobs for poll. */
void
server_job_prepare(void)
{
struct job *job;
SLIST_FOREACH(job, &all_jobs, lentry) {
if (job->fd == -1)
continue;
server_poll_add(job->fd, POLLIN, server_job_callback, job);
}
}
/* Process a single job event. */
void
server_job_callback(int fd, int events, void *data)
{
struct job *job = data;
if (job->fd == -1)
return;
if (buffer_poll(fd, events, job->out, NULL) != 0) {
close(job->fd);
job->fd = -1;
}
}
/* Job functions that happen once a loop. */
void
server_job_loop(void)
{
struct job *job;
restart:
SLIST_FOREACH(job, &all_jobs, lentry) {
if (job->flags & JOB_DONE || job->fd != -1 || job->pid != -1)
continue;
job->flags |= JOB_DONE;
if (job->callbackfn != NULL) {
job->callbackfn(job);
goto restart; /* could be freed by callback */
}
}
}