X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=aft.c;h=d0580bba8a5fa3c271c0119d368794c09b7c81b3;hp=aae6d66b0bfbd511fb7a7aabbf14f2c1dbab74a7;hb=fa2e4b062432412b90ad7ba6e85d27764544f1c8;hpb=97f53e18953fc2013c0b14f0261ac385e45b0284

diff --git a/aft.c b/aft.c
index aae6d66b..d0580bba 100644
--- a/aft.c
+++ b/aft.c
@@ -17,6 +17,7 @@
 #include "net.h"
 #include "vss.h"
 #include "fd.h"
+#include "ipc.h"
 
 static struct osl_table *audio_file_table;
 
@@ -348,11 +349,13 @@ static void load_afhi(const char *buf, struct audio_format_info *afhi)
 	strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
 }
 
+//#define SIZEOF_CHUNK_TABLE(afhi) (((afhi)->chunks_total + 1) * sizeof(uint32_t))
+
 static unsigned sizeof_chunk_info_buf(struct audio_format_info *afhi)
 {
 	if (!afhi)
 		return 0;
-	return 4 * afhi->chunks_total + 20;
+	return 4 * (afhi->chunks_total + 1) + 20;
 
 }
 
@@ -372,11 +375,25 @@ enum chunk_info_offsets{
 	CHUNK_TABLE_OFFSET = 20,
 };
 
-/* TODO: audio format handlers could just produce this */
-static void save_chunk_info(struct audio_format_info *afhi, char *buf)
+static void save_chunk_table(struct audio_format_info *afhi, char *buf)
 {
 	int i;
 
+	PARA_NOTICE_LOG("%lu chunks\n", afhi->chunks_total);
+	for (i = 0; i <= afhi->chunks_total; i++)
+		write_u32(buf + 4 * i, afhi->chunk_table[i]);
+}
+
+static void load_chunk_table(struct audio_format_info *afhi, char *buf)
+{
+	int i;
+	for (i = 0; i <= afhi->chunks_total; i++)
+		afhi->chunk_table[i] = read_u32(buf + 4 * i);
+}
+
+/* TODO: audio format handlers could just produce this */
+static void save_chunk_info(struct audio_format_info *afhi, char *buf)
+{
 	if (!afhi)
 		return;
 	write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
@@ -384,14 +401,12 @@ static void save_chunk_info(struct audio_format_info *afhi, char *buf)
 	write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
 	write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
 	write_u32(buf + CHUNK_TV_TV_USEC, afhi->chunk_tv.tv_usec);
-	for (i = 0; i < afhi->chunks_total; i++)
-		write_u32(buf + CHUNK_TABLE_OFFSET + 4 * i, afhi->chunk_table[i]);
+	save_chunk_table(afhi, buf + CHUNK_TABLE_OFFSET);
 }
 
 static int load_chunk_info(struct osl_object *obj, struct audio_format_info *afhi)
 {
 	char *buf = obj->data;
-	int i;
 
 	if (obj->size < CHUNK_TABLE_OFFSET)
 		return -E_BAD_DATA_SIZE;
@@ -402,11 +417,10 @@ static int load_chunk_info(struct osl_object *obj, struct audio_format_info *afh
 	afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
 	afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC);
 
-	if (afhi->chunks_total * 4 + CHUNK_TABLE_OFFSET > obj->size)
+	if ((afhi->chunks_total + 1) * 4 + CHUNK_TABLE_OFFSET > obj->size)
 		return -E_BAD_DATA_SIZE;
-	afhi->chunk_table = para_malloc(afhi->chunks_total * sizeof(size_t));
-	for (i = 0; i < afhi->chunks_total; i++)
-		afhi->chunk_table[i] = read_u32(buf + CHUNK_TABLE_OFFSET + 4 * i);
+	afhi->chunk_table = para_malloc((afhi->chunks_total + 1) * 4);
+	load_chunk_table(afhi, buf + CHUNK_TABLE_OFFSET);
 	return 1;
 }
 
@@ -510,7 +524,10 @@ int get_afsi_of_path(const char *path, struct afs_info *afsi)
  * \param row Pointer to a row in the audio file table.
  * \param path Result pointer.
  *
- * \return Positive on success, negative on errors.
+ * The result is a pointer to mmapped data. The caller must not attempt
+ * to free it.
+ *
+ * \return Standard.
  */
 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
 {
@@ -581,28 +598,52 @@ int get_afhi_of_row(const struct osl_row *row, struct audio_format_info *afhi)
 	return 1;
 }
 
-/**
- * Get the chunk table of an audio file, given a row of the audio file table.
- *
- * \param row Pointer to a row of the audio file table.
- * \param afhi Result pointer.
- *
- * \return The return value of the underlying call to osl_open_disk_object().
- *
- * \sa get_afhi_of_row().
- */
-static int get_chunk_table_of_row(const struct osl_row *row, struct audio_format_info *afhi)
+/* returns shmid on success */
+static int save_afd(struct audio_file_data *afd)
 {
-	struct osl_object obj;
-	int ret = osl_open_disk_object(audio_file_table, row, AFTCOL_CHUNKS,
-		&obj);
+	size_t size = sizeof(*afd)
+		+ 4 * (afd->afhi.chunks_total + 1);
+
+	PARA_NOTICE_LOG("size: %zu\n", size);
+	int shmid, ret = shm_new(size);
+	void *shm_afd;
+	char *buf;
+
 	if (ret < 0)
 		return ret;
-	ret = load_chunk_info(&obj, afhi);
-	osl_close_disk_object(&obj);
+	shmid = ret;
+	ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
+	if (ret < 0)
+		goto err;
+	*(struct audio_file_data *)shm_afd = *afd;
+	buf = shm_afd;
+	buf += sizeof(*afd);
+	save_chunk_table(&afd->afhi, buf);
+	shm_detach(shm_afd);
+	return shmid;
+err:
+	shm_destroy(shmid);
 	return ret;
 }
 
+int load_afd(int shmid, struct audio_file_data *afd)
+{
+	void *shm_afd;
+	char *buf;
+	int ret;
+
+	ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
+	if (ret < 0)
+		return ret;
+	*afd = *(struct audio_file_data *)shm_afd;
+	buf = shm_afd;
+	buf += sizeof(*afd);
+	afd->afhi.chunk_table = para_malloc((afd->afhi.chunks_total + 1) * 4);
+	load_chunk_table(&afd->afhi, buf);
+	shm_detach(shm_afd);
+	return 1;
+}
+
 /**
  * Mmap the given audio file and update statistics.
  *
@@ -622,12 +663,16 @@ int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *
 	struct afs_info new_afsi;
 	int ret = get_hash_of_row(aft_row, &aft_hash);
 	struct afsi_change_event_data aced;
+	struct osl_object map, chunk_table_obj;
+	char *tmp, *path;
 
 	if (ret < 0)
 		return ret;
-	ret = get_audio_file_path_of_row(aft_row, &afd->path);
+	ret = get_audio_file_path_of_row(aft_row, &path);
 	if (ret < 0)
 		return ret;
+	strncpy(afd->path, path, sizeof(afd->path) - 1);
+	afd->path[sizeof(afd->path) - 1] = '\0';
 	ret = get_afsi_object_of_row(aft_row, &afsi_obj);
 	if (ret < 0)
 		return ret;
@@ -637,29 +682,45 @@ int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *
 	ret = get_afhi_of_row(aft_row, &afd->afhi);
 	if (ret < 0)
 		return ret;
-	ret = get_chunk_table_of_row(aft_row, &afd->afhi);
+	ret = osl_open_disk_object(audio_file_table, aft_row,
+		AFTCOL_CHUNKS, &chunk_table_obj);
 	if (ret < 0)
 		return ret;
-	ret = mmap_full_file(afd->path, O_RDONLY, &afd->map.data,
-		&afd->map.size, NULL);
+	ret = mmap_full_file(path, O_RDONLY, &map.data,
+		&map.size, &afd->fd);
 	if (ret < 0)
 		goto err;
-	hash_function(afd->map.data, afd->map.size, file_hash);
-	ret = -E_HASH_MISMATCH;
-	if (hash_compare(file_hash, aft_hash))
+	hash_function(map.data, map.size, file_hash);
+	ret = hash_compare(file_hash, aft_hash);
+	para_munmap(map.data, map.size);
+	if (ret) {
+		ret = -E_HASH_MISMATCH;
 		goto err;
+	}
 	new_afsi = afd->afsi;
 	new_afsi.num_played++;
 	new_afsi.last_played = time(NULL);
 	save_afsi(&new_afsi, &afsi_obj); /* in-place update */
 
+	ret = load_chunk_info(&chunk_table_obj, &afd->afhi);
+	if (ret < 0)
+		goto err;
+	ret = get_attribute_text(&afd->afsi.attributes, " ", &tmp);
+	if (ret < 0)
+		goto err;
+	tmp[sizeof(afd->attributes_string) - 1] = '\0';
+	strcpy(afd->attributes_string, tmp); /* OK */
+	free(tmp);
+
 	aced.aft_row = aft_row;
 	aced.old_afsi = &afd->afsi;
 	afs_event(AFSI_CHANGE, NULL, &aced);
-
-	return ret;
-err:
+	ret = save_afd(afd);
+	if (ret < 0)
+		goto err;
 	free(afd->afhi.chunk_table);
+err:
+	osl_close_disk_object(&chunk_table_obj);
 	return ret;
 }
 
@@ -1154,7 +1215,7 @@ out:
  * full list: list everything, including afsi, afhi, atts as clear text
  *
  * */
-int com_afs_ls(int fd, int argc, char * const * const argv)
+int com_ls(int fd, int argc, char * const * const argv)
 {
 	int i, ret;
 	unsigned flags = 0;
@@ -1550,7 +1611,7 @@ static int add_one_audio_file(const char *path, const void *private_data)
 	const struct private_add_data *pad = private_data;
 	struct audio_format_info afhi, *afhi_ptr = NULL;
 	struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
-	struct osl_object map, obj = {.data = NULL}, query, result;
+	struct osl_object map, obj = {.data = NULL}, query, result = {.data = NULL};
 	HASH_TYPE hash[HASH_SIZE];
 
 	afhi.header_offset = 0;
@@ -1617,7 +1678,7 @@ static int add_one_audio_file(const char *path, const void *private_data)
 	save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
 	/* Ask afs to consider this entry for adding. */
 	ret = send_callback_request(com_add_callback, &obj, &result);
-	if (result.data && result.size) {
+	if (ret >= 0 && result.data && result.size) {
 		ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
 		free(result.data);
 		if (ret >= 0 && ret2 < 0)
@@ -1934,7 +1995,7 @@ static int com_rm_callback(const struct osl_object *query,
 }
 
 /* TODO options: -r (recursive) */
-int com_afs_rm(int fd, int argc,  char * const * const argv)
+int com_rm(int fd, int argc,  char * const * const argv)
 {
 	uint32_t flags = 0;
 	struct osl_object query = {.data = &flags, .size = sizeof(flags)},