#include "string.h"
#include "afh.h"
#include "afs.h"
-#include "server.h"
#include "net.h"
+#include "server.h"
#include "list.h"
#include "send.h"
#include "sched.h"
#include "fd.h"
extern struct misc_meta_data *mmd;
-
-extern void dccp_send_init(struct sender *);
-extern void http_send_init(struct sender *);
-extern void udp_send_init(struct sender *);
-
-/** The list of supported senders. */
-struct sender senders[] = {
- {
- .name = "http",
- .init = http_send_init,
- },
- {
- .name = "dccp",
- .init = dccp_send_init,
- },
- {
- .name = "udp",
- .init = udp_send_init,
- },
- {
- .name = NULL,
- }
-};
+extern const struct sender udp_sender, dccp_sender, http_sender;
+const struct sender * const senders[] = {
+ &http_sender, &dccp_sender, &udp_sender, NULL};
/** The possible states of the afs socket. */
enum afs_socket_status {
if (fcp->init_fec) {
/*
* Set the maximum slice size to the Maximum Packet Size if the
- * transport protocol allows to determine this value. The user
+ * transport protocol allows determination of this value. The user
* can specify a slice size up to this value.
*/
ret = fcp->init_fec(fc->sc);
vsst->afsss = AFS_SOCKET_CHECK_FOR_WRITE;
} else
para_fd_set(vsst->afs_socket, &s->rfds, &s->max_fileno);
- for (i = 0; senders[i].name; i++) {
- if (!senders[i].pre_select)
+ FOR_EACH_SENDER(i) {
+ if (!senders[i]->pre_select)
continue;
- senders[i].pre_select(&s->max_fileno, &s->rfds, &s->wfds);
+ senders[i]->pre_select(&s->max_fileno, &s->rfds, &s->wfds);
}
vss_compute_timeout(s, vsst);
}
goto err;
}
ret = para_mmap(statbuf.st_size, PROT_READ, MAP_PRIVATE | MAP_POPULATE,
- passed_fd, 0, &vsst->map);
+ passed_fd, &vsst->map);
if (ret < 0)
goto err;
vsst->mapsize = statbuf.st_size;
bool fec_active = false;
struct timeval due;
struct fec_client *fc, *tmp_fc;
+ char *buf;
+ size_t len;
if (!vsst->map || !vss_playing())
return;
}
compute_chunk_time(mmd->chunks_sent, &mmd->afd.afhi.chunk_tv,
&mmd->stream_start, &due);
- if (tv_diff(&due, now, NULL) <= 0) {
- char *buf;
- size_t len;
-
- if (!mmd->chunks_sent) {
- mmd->stream_start = *now;
- mmd->events++;
- set_mmd_offset();
- }
- ret = vss_get_chunk(mmd->current_chunk, vsst, &buf, &len);
- if (ret < 0) {
- PARA_ERROR_LOG("could not get chunk %lu: %s\n",
- mmd->current_chunk, para_strerror(-ret));
- } else {
- /*
- * We call ->send() even if len is zero because senders
- * might have data queued which can be sent now.
- */
- for (i = 0; senders[i].name; i++) {
- if (!senders[i].send)
- continue;
- senders[i].send(mmd->current_chunk,
- mmd->chunks_sent, buf, len,
- vsst->header_buf, vsst->header_len);
- }
+ if (tv_diff(&due, now, NULL) > 0)
+ return;
+ if (!mmd->chunks_sent) {
+ mmd->stream_start = *now;
+ mmd->events++;
+ set_mmd_offset();
+ }
+ ret = vss_get_chunk(mmd->current_chunk, vsst, &buf, &len);
+ if (ret < 0) {
+ PARA_ERROR_LOG("could not get chunk %lu: %s\n",
+ mmd->current_chunk, para_strerror(-ret));
+ } else {
+ /*
+ * We call ->send() even if len is zero because senders might
+ * have data queued which can be sent now.
+ */
+ FOR_EACH_SENDER(i) {
+ if (!senders[i]->send)
+ continue;
+ senders[i]->send(mmd->current_chunk, mmd->chunks_sent,
+ buf, len, vsst->header_buf, vsst->header_len);
}
- mmd->chunks_sent++;
- mmd->current_chunk++;
}
+ mmd->chunks_sent++;
+ mmd->current_chunk++;
}
static int vss_post_select(struct sched *s, void *context)
int ret, i;
struct vss_task *vsst = context;
+ ret = task_get_notification(vsst->task);
+ if (ret < 0) {
+ afh_free_header(vsst->header_buf, mmd->afd.audio_format_id);
+ return ret;
+ }
if (!vsst->map || vss_next() || vss_paused() || vss_repos()) {
/* shut down senders and fec clients */
struct fec_client *fc, *tmp;
- for (i = 0; senders[i].name; i++)
- if (senders[i].shutdown_clients)
- senders[i].shutdown_clients();
+ FOR_EACH_SENDER(i)
+ if (senders[i]->shutdown_clients)
+ senders[i]->shutdown_clients();
list_for_each_entry_safe(fc, tmp, &fec_client_list, node)
fc->state = FEC_STATE_NONE;
mmd->stream_start.tv_sec = 0;
int num = mmd->sender_cmd_data.cmd_num,
sender_num = mmd->sender_cmd_data.sender_num;
- if (senders[sender_num].client_cmds[num]) {
- ret = senders[sender_num].client_cmds[num]
+ if (senders[sender_num]->client_cmds[num]) {
+ ret = senders[sender_num]->client_cmds[num]
(&mmd->sender_cmd_data);
if (ret < 0)
PARA_ERROR_LOG("%s\n", para_strerror(-ret));
else
vsst->afsss = AFS_SOCKET_AFD_PENDING;
}
- for (i = 0; senders[i].name; i++) {
- if (!senders[i].post_select)
+ FOR_EACH_SENDER(i) {
+ if (!senders[i]->post_select)
continue;
- senders[i].post_select(&s->rfds, &s->wfds);
+ senders[i]->post_select(&s->rfds, &s->wfds);
}
if ((vss_playing() && !(mmd->vss_status_flags & VSS_PLAYING)) ||
(vss_next() && vss_playing()))
ms2tv(announce_time, &vsst->announce_tv);
PARA_INFO_LOG("announce timeval: %lums\n", tv2ms(&vsst->announce_tv));
INIT_LIST_HEAD(&fec_client_list);
- for (i = 0; senders[i].name; i++) {
- PARA_NOTICE_LOG("initializing %s sender\n", senders[i].name);
- senders[i].init(&senders[i]);
+ FOR_EACH_SENDER(i) {
+ PARA_NOTICE_LOG("initializing %s sender\n", senders[i]->name);
+ senders[i]->init();
}
mmd->sender_cmd_data.cmd_num = -1;
if (OPT_GIVEN(AUTOPLAY)) {
&vsst->data_send_barrier);
}
vsst->task = task_register(&(struct task_info) {
- .name = "vss task",
+ .name = "vss",
.pre_select = vss_pre_select,
.post_select = vss_post_select,
.context = vsst,
}, s);
}
+
+/**
+ * Turn off the virtual streaming system.
+ *
+ * This is only executed on exit. It calls the ->shutdowwn method of all senders.
+ */
+void vss_shutdown(void)
+{
+ int i;
+
+ FOR_EACH_SENDER(i) {
+ if (!senders[i]->shutdown)
+ continue;
+ PARA_NOTICE_LOG("shutting down %s sender\n", senders[i]->name);
+ senders[i]->shutdown();
+ }
+}