#include <arpa/inet.h>
#include <sys/un.h>
#include <netdb.h>
+#include <lopsub.h>
+#include "server.lsg.h"
#include "para.h"
#include "error.h"
#include "portable_io.h"
#include "afs.h"
#include "server.h"
#include "net.h"
-#include "server.cmdline.h"
#include "list.h"
#include "send.h"
#include "sched.h"
enum afs_socket_status afsss;
/** The memory mapped audio file. */
char *map;
+ /** The size of the memory mapping. */
+ size_t mapsize;
/** Used by the scheduler. */
struct task *task;
/** Pointer to the header of the mapped audio file. */
size_t header_len;
/** Time between audio file headers are sent. */
struct timeval header_interval;
+ /* Only used if afh supports dynamic chunks. */
+ void *afh_context;
};
/**
static void vss_get_chunk(int chunk_num, struct vss_task *vsst,
char **buf, size_t *sz)
{
+ int ret;
+
/*
* Chunk zero is special for header streams: It is the first portion of
* the audio file which consists of the audio file header. It may be
* rather than the unmodified header (chunk zero).
*/
if (chunk_num == 0 && vsst->header_len > 0) {
+ assert(vsst->header_buf);
*buf = vsst->header_buf; /* stripped header */
*sz = vsst->header_len;
return;
}
- afh_get_chunk(chunk_num, &mmd->afd.afhi, vsst->map, (const char **)buf,
- sz);
+ ret = afh_get_chunk(chunk_num, &mmd->afd.afhi,
+ mmd->afd.audio_format_id, vsst->map, vsst->mapsize,
+ (const char **)buf, sz, &vsst->afh_context);
+ if (ret < 0) {
+ PARA_WARNING_LOG("could not get chunk %d: %s\n",
+ chunk_num, para_strerror(-ret));
+ *buf = NULL;
+ *sz = 0;
+ }
}
static void compute_group_size(struct vss_task *vsst, struct fec_group *g,
set_eof_barrier(vsst);
afh_free_header(vsst->header_buf, mmd->afd.audio_format_id);
vsst->header_buf = NULL;
- para_munmap(vsst->map, mmd->size);
+ para_munmap(vsst->map, vsst->mapsize);
vsst->map = NULL;
mmd->chunks_sent = 0;
//mmd->offset = 0;
mmd->afd.afhi.chunk_tv.tv_usec = 0;
free(mmd->afd.afhi.chunk_table);
mmd->afd.afhi.chunk_table = NULL;
- mmd->size = 0;
+ vsst->mapsize = 0;
+ afh_close(vsst->afh_context, mmd->afd.audio_format_id);
+ vsst->afh_context = NULL;
mmd->events++;
}
ret = -ERRNO_TO_PARA_ERROR(errno);
goto err;
}
- mmd->size = statbuf.st_size;
- ret = para_mmap(mmd->size, PROT_READ, MAP_PRIVATE | MAP_POPULATE,
+ ret = para_mmap(statbuf.st_size, PROT_READ, MAP_PRIVATE | MAP_POPULATE,
passed_fd, 0, &vsst->map);
if (ret < 0)
goto err;
+ vsst->mapsize = statbuf.st_size;
close(passed_fd);
mmd->chunks_sent = 0;
mmd->current_chunk = 0;
mmd->num_played++;
mmd->new_vss_status_flags &= (~VSS_NEXT);
afh_get_header(&mmd->afd.afhi, mmd->afd.audio_format_id,
- vsst->map, mmd->size, &vsst->header_buf, &vsst->header_len);
+ vsst->map, vsst->mapsize, &vsst->header_buf, &vsst->header_len);
return;
err:
free(mmd->afd.afhi.chunk_table);
*/
static void vss_send(struct vss_task *vsst)
{
- int i, fec_active = 0;
+ int i;
+ bool fec_active = false;
struct timeval due;
struct fec_client *fc, *tmp_fc;
return;
if (chk_barrier("eof", &vsst->eof_barrier, &due, 1) < 0)
return;
- if (chk_barrier("data send", &vsst->data_send_barrier,
- &due, 1) < 0)
+ if (chk_barrier("data send", &vsst->data_send_barrier, &due, 1) < 0)
return;
list_for_each_entry_safe(fc, tmp_fc, &fec_client_list, node) {
if (fc->state == FEC_STATE_DISABLED)
continue;
if (!next_slice_is_due(fc, NULL)) {
- fec_active = 1;
+ fec_active = true;
continue;
}
if (compute_next_fec_slice(fc, vsst) <= 0)
continue;
PARA_DEBUG_LOG("sending %u:%u (%u bytes)\n", fc->group.num,
fc->current_slice_num, fc->group.slice_bytes);
+ fc->current_slice_num++;
fc->fcp->send_fec(fc->sc, (char *)fc->enc_buf,
fc->group.slice_bytes + FEC_HEADER_SIZE);
- fc->current_slice_num++;
- fec_active = 1;
+ fec_active = true;
}
if (mmd->current_chunk >= mmd->afd.afhi.chunks_total) { /* eof */
if (!fec_active)
mmd->events++;
set_mmd_offset();
}
- /*
- * We call the send function also in case of empty chunks as
- * they might have still some data queued which can be sent in
- * this case.
- */
vss_get_chunk(mmd->current_chunk, vsst, &buf, &len);
for (i = 0; senders[i].name; i++) {
+ /*
+ * We call ->send() even if len is zero because senders
+ * might have data queued which can be sent now.
+ */
if (!senders[i].send)
continue;
senders[i].send(mmd->current_chunk, mmd->chunks_sent,
buf, len, vsst->header_buf, vsst->header_len);
}
- /*
- * Prefault next chunk(s)
- *
- * If the backing device of the memory-mapped audio file is
- * slow and read-ahead is turned off or prevented for some
- * reason, e.g. due to memory pressure, it may take much longer
- * than the chunk interval to get the next chunk on the wire,
- * causing buffer underruns on the client side. Mapping the
- * file with MAP_POPULATE seems to help a bit, but it does not
- * eliminate the delays completely. Moreover, it is supported
- * only on Linux. So we do our own read-ahead here.
- */
- if (mmd->current_chunk > 0) { /* chunk 0 might be on the heap */
- buf += len;
- for (i = 0; i < 5 && buf < vsst->map + mmd->size; i++) {
- __a_unused volatile char x = *buf;
- buf += 4096;
- }
- }
mmd->chunks_sent++;
mmd->current_chunk++;
}
set_eof_barrier(vsst);
mmd->chunks_sent = 0;
mmd->current_chunk = afh_get_start_chunk(mmd->repos_request,
- &mmd->afd.afhi);
+ &mmd->afd.afhi, mmd->afd.audio_format_id);
mmd->new_vss_status_flags &= ~VSS_REPOS;
set_mmd_offset();
}
* This also initializes all supported senders and starts streaming
* if the --autoplay command line flag was given.
*/
-void init_vss_task(int afs_socket, struct sched *s)
+void vss_init(int afs_socket, struct sched *s)
{
static struct vss_task vss_task_struct, *vsst = &vss_task_struct;
int i;
- char *hn = para_hostname(), *home = para_homedir();
- long unsigned announce_time = conf.announce_time_arg > 0?
- conf.announce_time_arg : 300,
- autoplay_delay = conf.autoplay_delay_arg > 0?
- conf.autoplay_delay_arg : 0;
+ long unsigned announce_time = OPT_UINT32_VAL(ANNOUNCE_TIME),
+ autoplay_delay = OPT_UINT32_VAL(AUTOPLAY_DELAY);
vsst->header_interval.tv_sec = 5; /* should this be configurable? */
vsst->afs_socket = afs_socket;
ms2tv(announce_time, &vsst->announce_tv);
PARA_NOTICE_LOG("initializing %s sender\n", senders[i].name);
senders[i].init(&senders[i]);
}
- free(hn);
- free(home);
mmd->sender_cmd_data.cmd_num = -1;
- if (conf.autoplay_given) {
+ if (OPT_GIVEN(AUTOPLAY)) {
struct timeval tmp;
mmd->vss_status_flags |= VSS_PLAYING;
mmd->new_vss_status_flags |= VSS_PLAYING;
projects / paraslash.git / blobdiff