/*
- * Copyright (C) 2006-2010 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006-2013 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
#include <regex.h>
#include <sys/types.h>
-#include <dirent.h>
-#include <stdbool.h>
#include "para.h"
#include "list.h"
};
/* Grab clients that are attached to a btr node. */
-INITIALIZED_LIST_HEAD(active_grab_client_list);
+static INITIALIZED_LIST_HEAD(active_grab_client_list);
/* Grab clients that are not currently attached any btr node. */
-INITIALIZED_LIST_HEAD(inactive_grab_client_list);
+static INITIALIZED_LIST_HEAD(inactive_grab_client_list);
static int gc_write(struct grab_client *gc, char *buf, size_t len)
{
if (gc->mode == GM_SLOPPY)
return len;
}
- ret = write_nonblock(gc->fd, buf, len, 0);
+ ret = xwrite(gc->fd, buf, len);
if (ret < 0)
goto err;
if (ret > 0)
if (ret == 0)
return;
- if (ret < 0) {
- s->timeout.tv_sec = 0;
- s->timeout.tv_usec = 0;
- return;
- }
+ if (ret < 0)
+ sched_min_delay(s);
para_fd_set(gc->fd, &s->wfds, &s->max_fileno);
}
* We need this forward declaration as post_select() needs
* activate_grab_client and vice versa.
*/
-static void gc_post_select(struct sched *s, struct task *t);
+static int gc_post_select(struct sched *s, struct task *t);
/**
* Move a grab client to the active list and start it.
*
* \param gc The grab client to activate.
*/
-static void gc_activate(struct grab_client *gc)
+static void gc_activate(struct grab_client *gc, struct sched *s)
{
struct btr_node *root = audiod_get_btr_root(), *parent;
char *name = gc->name? gc->name : "grab";
list_move(&gc->node, &active_grab_client_list);
gc->btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = name, .parent = parent));
- if (!gc->task.pre_select) {
- gc->task.pre_select = gc_pre_select;
- gc->task.post_select = gc_post_select;
- snprintf(gc->task.status, sizeof(gc->task.status) - 1, "%s", name);
- gc->task.status[sizeof(gc->task.status) - 1] = '\0';
- register_task(&gc->task);
- }
+ gc->task.pre_select = gc_pre_select;
+ gc->task.post_select = gc_post_select;
+ snprintf(gc->task.status, sizeof(gc->task.status) - 1, "%s", name);
+ gc->task.status[sizeof(gc->task.status) - 1] = '\0';
+ gc->task.error = 0;
+ register_task(s, &gc->task);
}
/**
* Activate inactive grab clients if possible.
*
+ * \param s Needed to schedule the grab client task.
+ *
* This is called from audiod.c when the current audio file changes. It loops
* over all inactive grab clients and checks each grab client's configuration
* to determine if the client in question wishes to grab the new stream. If
* This function also garbage collects all grab clients whose tasks have been
* unscheduled.
*/
-void activate_grab_clients(void)
+void activate_grab_clients(struct sched *s)
{
struct grab_client *gc, *tmp;
list_for_each_entry_safe(gc, tmp, &inactive_grab_client_list, node) {
- if (gc->task.error == -E_TASK_UNREGISTERED) {
+ if (gc->fd < 0) {
list_del(&gc->node);
free(gc);
continue;
}
- gc_activate(gc);
+ gc_activate(gc, s);
}
}
static int gc_close(struct grab_client *gc, int err)
{
- btr_remove_node(gc->btrn);
- btr_free_node(gc->btrn);
- gc->btrn = NULL;
+ btr_remove_node(&gc->btrn);
PARA_INFO_LOG("closing gc: %s\n", para_strerror(-err));
list_move(&gc->node, &inactive_grab_client_list);
if (err == -E_GC_WRITE || (gc->flags & GF_ONE_SHOT)) {
* post_select().
*/
close(gc->fd);
+ gc->fd = -1;
free(gc->parent);
free(gc->name);
return 1;
}
- gc_activate(gc);
return 0;
}
-static void gc_post_select(__a_unused struct sched *s, struct task *t)
+static int gc_post_select(__a_unused struct sched *s, struct task *t)
{
struct grab_client *gc = container_of(t, struct grab_client, task);
struct btr_node *btrn = gc->btrn;
size_t sz;
char *buf;
- t->error = 0;
ret = btr_node_status(btrn, 0, BTR_NT_LEAF);
if (ret == 0)
- return;
+ return 0;
if (ret < 0)
goto err;
sz = btr_next_buffer(btrn, &buf);
goto err;
if (ret > 0)
btr_consume(btrn, ret);
- return;
+ return 0;
err:
- t->error = gc_close(gc, ret)? ret : 0;
+ gc_close(gc, ret);
+ return ret;
}
static int gc_check_args(int argc, char **argv, struct grab_client *gc)
* \param fd The file descriptor of the client.
* \param argc Argument count.
* \param argv Argument vector.
+ * \param s The scheduler to register the grab client task to.
*
* If the command line options given by \a argc and \a argv are valid.
* allocate a struct grab_client and initialize it with this valid
*
* \return Standard.
*/
-int grab_client_new(int fd, int argc, char **argv)
+int grab_client_new(int fd, int argc, char **argv, struct sched *s)
{
int ret;
struct grab_client *gc = para_calloc(sizeof(struct grab_client));
goto err_out;
gc->fd = fd;
para_list_add(&gc->node, &inactive_grab_client_list);
- gc_activate(gc);
+ gc_activate(gc, s);
return 1;
err_out:
free(gc);
projects / paraslash.git / blobdiff