X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=vss.c;h=1be4cd15d1db262dd5f79a43b19e7bba09f2087a;hp=fbe740a892b9108a6fa4ac5b78421c79f6bc3631;hb=cd8aecdb81f2ffb1a6e34a866d6156f8c915a467;hpb=13f8214c662144b2afa5c9fbf3cf2fbe1e9a36f0

diff --git a/vss.c b/vss.c
index fbe740a8..1be4cd15 100644
--- a/vss.c
+++ b/vss.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1997-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 1997-2008 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -25,12 +25,11 @@
 #include "net.h"
 #include "server.cmdline.h"
 #include "vss.h"
+#include "list.h"
 #include "send.h"
 #include "ipc.h"
 #include "fd.h"
 
-extern const char *status_item_list[];
-
 static struct timeval announce_tv;
 static struct timeval data_send_barrier;
 static struct timeval eof_barrier;
@@ -86,6 +85,18 @@ unsigned int vss_paused(void)
 		&& !(mmd->new_vss_status_flags & VSS_PLAYING);
 }
 
+/**
+ * Check if the vss is currently stopped.
+ *
+ * \return Greater than zero if paused, zero otherwise.
+ *
+ */
+unsigned int vss_stopped(void)
+{
+	return (mmd->new_vss_status_flags & VSS_NEXT)
+		&& !(mmd->new_vss_status_flags & VSS_PLAYING);
+}
+
 /**
  * Initialize the virtual streaming system.
  *
@@ -132,14 +143,6 @@ static int chk_barrier(const char *bname, const struct timeval *now,
 	return -1;
 }
 
-static void vss_next_chunk_time(struct timeval *due)
-{
-	struct timeval tmp;
-
-	tv_scale(mmd->chunks_sent, &mmd->afd.afhi.chunk_tv, &tmp);
-	tv_add(&tmp, &mmd->stream_start, due);
-}
-
 /*
  * != NULL: timeout for next chunk
  * NULL: nothing to do
@@ -166,9 +169,9 @@ static struct timeval *vss_compute_timeout(void)
 		return &the_timeout;
 	if (!vss_playing() || !map)
 		return NULL;
-	vss_next_chunk_time(&next_chunk);
-	if (chk_barrier(audio_format_name(mmd->afd.afsi.audio_format_id),
-			&now, &next_chunk, &the_timeout, 0) < 0)
+	compute_chunk_time(mmd->chunks_sent, &mmd->afd.afhi.chunk_tv,
+		&mmd->stream_start, &next_chunk);
+	if (chk_barrier("chunk", &now, &next_chunk, &the_timeout, 0) < 0)
 		return &the_timeout;
 	/* chunk is due or bof */
 	the_timeout.tv_sec = 0;
@@ -187,6 +190,8 @@ static void vss_eof(void)
 			senders[i].shutdown_clients();
 		return;
 	}
+	if (mmd->new_vss_status_flags & VSS_NOMORE)
+		mmd->new_vss_status_flags = VSS_NEXT;
 	gettimeofday(&now, NULL);
 	tv_add(&mmd->afd.afhi.eof_tv, &now, &eof_barrier);
 	munmap(map, mmd->size);
@@ -196,16 +201,13 @@ static void vss_eof(void)
 	mmd->afd.afhi.seconds_total = 0;
 	free(mmd->afd.afhi.chunk_table);
 	mmd->afd.afhi.chunk_table = NULL;
-	tmp  = make_message("%s:\n%s:\n%s:\n", status_item_list[SI_AUDIO_INFO1],
-		status_item_list[SI_AUDIO_INFO2], status_item_list[SI_AUDIO_INFO3]);
+	tmp  = make_message("%s:\n%s:\n%s:\n", status_item_list[SI_AUDIO_FILE_INFO],
+		status_item_list[SI_TAGINFO1], status_item_list[SI_TAGINFO2]);
 	strncpy(mmd->afd.afhi.info_string, tmp, sizeof(mmd->afd.afhi.info_string));
 	mmd->afd.afhi.info_string[sizeof(mmd->afd.afhi.info_string) - 1] = '\0';
+	make_empty_status_items(mmd->afd.verbose_ls_output);
 	free(tmp);
-	mmd->afd.path[0] = '\0';
-	mmd->afd.afsi.lyrics_id = 0;
-	mmd->afd.afsi.image_id = 0;
 	mmd->mtime = 0;
-	mmd->afd.attributes_string[0] = '\0';
 	mmd->size = 0;
 	mmd->events++;
 }
@@ -213,19 +215,14 @@ static void vss_eof(void)
 /**
  * Get the header of the current audio file.
  *
- * \param header_len The length of the header is stored here.
- *
- * \return A pointer to a buffer containing the header, or NULL, if no audio
- * file is selected or if the current audio format does not need special header
- * treamtment.
+ * \param buf The length of the header is stored here.
+ * \param len Points to a buffer containing the header on return.
  *
+ * \sa afh_get_header.
  */
-char *vss_get_header(size_t *header_len)
+void vss_get_header(char **buf, size_t *len)
 {
-	if (!map || !mmd->afd.afhi.header_len)
-		return NULL;
-	*header_len = mmd->afd.afhi.header_len;
-	return map + mmd->afd.afhi.header_offset;
+	afh_get_header(&mmd->afd.afhi, map, buf, len);
 }
 
 /**
@@ -253,9 +250,13 @@ struct timeval *vss_chunk_time(void)
 	return &mmd->afd.afhi.chunk_tv;
 }
 
+/** The possible states of the afs socket. See \ref afs_socket. */
 enum afs_socket_status {
+	/** Socket is inactive. */
 	AFS_SOCKET_READY,
+	/** Socket fd was included in the write fd set for select(). */
 	AFS_SOCKET_CHECK_FOR_WRITE,
+	/** vss wrote a request to the socket and waits for afs to reply. */
 	AFS_SOCKET_AFD_PENDING
 };
 
@@ -307,8 +308,6 @@ struct timeval *vss_preselect(fd_set *rfds, fd_set *wfds, int *max_fileno)
 				tv_add(&mmd->afd.afhi.eof_tv, &now, &eof_barrier);
 			if (vss_repos())
 				tv_add(&now, &announce_tv, &data_send_barrier);
-			if (mmd->new_vss_status_flags & VSS_NOMORE)
-				mmd->new_vss_status_flags = VSS_NEXT;
 		}
 		mmd->chunks_sent = 0;
 	}
@@ -339,6 +338,7 @@ static int recv_afs_msg(int *fd, uint32_t *code, uint32_t *data)
 	struct iovec iov;
 	int ret = 0;
 
+	*fd = -1;
 	iov.iov_base = buf;
 	iov.iov_len = sizeof(buf);
 	msg.msg_iov = &iov;
@@ -349,8 +349,9 @@ static int recv_afs_msg(int *fd, uint32_t *code, uint32_t *data)
 	ret = recvmsg(afs_socket, &msg, 0);
 	if (ret < 0)
 		return -ERRNO_TO_PARA_ERROR(errno);
+	afsss = AFS_SOCKET_READY;
 	if (iov.iov_len != sizeof(buf))
-		return -E_SHORT_AFS_READ;
+		return -E_AFS_SHORT_READ;
 	*code = *(uint32_t*)buf;
 	*data =  *(uint32_t*)(buf + 4);
 	for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
@@ -366,27 +367,27 @@ static int recv_afs_msg(int *fd, uint32_t *code, uint32_t *data)
 
 static void recv_afs_result(void)
 {
-	int ret, passed_fd = -1, shmid;
+	int ret, passed_fd, shmid;
 	uint32_t afs_code = 0, afs_data = 0;
 	struct stat statbuf;
 	struct timeval now;
 
+	mmd->afd.afhi.chunk_table = NULL;
 	ret = recv_afs_msg(&passed_fd, &afs_code, &afs_data);
 	if (ret < 0)
 		goto err;
-	PARA_DEBUG_LOG("got the fd: %d, code: %u, shmid: %u\n",
-		passed_fd, afs_code, afs_data);
-	ret = -E_BAD_AFS_CODE;
+	PARA_DEBUG_LOG("fd: %d, code: %u, shmid: %u\n", passed_fd, afs_code,
+		afs_data);
+	ret = -E_NOFD;
 	if (afs_code != NEXT_AUDIO_FILE)
 		goto err;
-	afsss = AFS_SOCKET_READY;
+	if (passed_fd < 0)
+		goto err;
 	shmid = afs_data;
 	ret = load_afd(shmid, &mmd->afd);
 	if (ret < 0)
 		goto err;
 	shm_destroy(shmid);
-	PARA_NOTICE_LOG("next audio file: %s (%lu chunks)\n", mmd->afd.path,
-		mmd->afd.afhi.chunks_total);
 	ret = fstat(passed_fd, &statbuf);
 	if (ret < 0) {
 		PARA_ERROR_LOG("fstat error:\n");
@@ -408,9 +409,11 @@ static void recv_afs_result(void)
 	tv_add(&now, &announce_tv, &data_send_barrier);
 	return;
 err:
+	free(mmd->afd.afhi.chunk_table);
 	if (passed_fd >= 0)
 		close(passed_fd);
-	PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
+	PARA_ERROR_LOG("%s\n", para_strerror(-ret));
+	mmd->new_vss_status_flags = VSS_NEXT;
 }
 
 void vss_post_select(fd_set *rfds, fd_set *wfds)
@@ -425,14 +428,6 @@ void vss_post_select(fd_set *rfds, fd_set *wfds)
 	ret = send_buffer(afs_socket, "new");
 	afsss = AFS_SOCKET_AFD_PENDING;
 }
-
-static void get_chunk(long unsigned chunk_num, char **buf, size_t *len)
-{
-	size_t pos = mmd->afd.afhi.chunk_table[chunk_num];
-	*buf = map + pos;
-	*len = mmd->afd.afhi.chunk_table[chunk_num + 1] - pos;
-}
-
 /**
  * Get the data of the given chunk.
  *
@@ -448,7 +443,7 @@ int vss_get_chunk(long unsigned chunk_num, char **buf, size_t *len)
 		return -E_CHUNK;
 	if (chunk_num >= mmd->afd.afhi.chunks_total)
 		return -E_CHUNK;
-	get_chunk(chunk_num, buf, len);
+	afh_get_chunk(chunk_num, &mmd->afd.afhi, map, buf, len);
 	return 1;
 }
 
@@ -471,7 +466,8 @@ void vss_send_chunk(void)
 	if (!map || !vss_playing())
 		return;
 	gettimeofday(&now, NULL);
-	vss_next_chunk_time(&due);
+	compute_chunk_time(mmd->chunks_sent, &mmd->afd.afhi.chunk_tv,
+		&mmd->stream_start, &due);
 	if (tv_diff(&due, &now, NULL) > 0)
 		return;
 	if (chk_barrier("eof", &now, &eof_barrier, &due, 1) < 0)
@@ -486,8 +482,8 @@ void vss_send_chunk(void)
 	}
 	/*
 	 * 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.
-  	 */
+	 * might have still some data queued which can be sent in this case.
+	 */
 	if (!mmd->chunks_sent) {
 		struct timeval tmp;
 		gettimeofday(&mmd->stream_start, NULL);
@@ -495,7 +491,7 @@ void vss_send_chunk(void)
 		mmd->offset = tv2ms(&tmp);
 		mmd->events++;
 	}
-	get_chunk(mmd->current_chunk, &buf, &len);
+	afh_get_chunk(mmd->current_chunk, &mmd->afd.afhi, map, &buf, &len);
 	for (i = 0; senders[i].name; i++)
 		senders[i].send(mmd->current_chunk, mmd->chunks_sent, buf, len);
 	mmd->new_vss_status_flags |= VSS_PLAYING;