X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=aft.c;h=ae2cbe2a1e8f756004f7fa69ef1f84d53e375c10;hp=adc9a6f2ad92b212790feb59cc7e66aa12506307;hb=5a63e05ac5239109f7bd492a71575ad1644d0c41;hpb=650e5374914c1eb725ce7d2a720611bec22112bc

diff --git a/aft.c b/aft.c
index adc9a6f2..ae2cbe2a 100644
--- a/aft.c
+++ b/aft.c
@@ -493,15 +493,16 @@ static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
 	return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
 }
 
-/**
- * Get the osl object holding the audio file selector info of a row.
+/*
+ * Get the audio file selector info object of a row.
  *
  * \param row Pointer to a row in the audio file table.
  * \param obj Result pointer.
  *
  * \return Standard.
  */
-int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
+static int get_afsi_object_of_row(const struct osl_row *row,
+		struct osl_object *obj)
 {
 	return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
 }
@@ -2471,6 +2472,108 @@ int com_cpsi(struct command_context *cc)
 	return ret;
 }
 
+struct change_atts_data {
+	uint64_t add_mask, del_mask;
+	struct para_buffer pb;
+};
+
+static int change_atts(__a_unused struct osl_table *table,
+		struct osl_row *row, __a_unused const char *name, void *data)
+{
+	int ret;
+	struct osl_object obj;
+	struct afs_info old_afsi, new_afsi;
+	struct afsi_change_event_data aced = {
+		.aft_row = row,
+		.old_afsi = &old_afsi
+	};
+	struct change_atts_data *cad = data;
+
+	ret = get_afsi_object_of_row(row, &obj);
+	if (ret < 0)
+		return ret;
+	ret = load_afsi(&old_afsi, &obj);
+	if (ret < 0)
+		return ret;
+	new_afsi = old_afsi;
+	new_afsi.attributes |= cad->add_mask;
+	new_afsi.attributes &= ~cad->del_mask;
+	save_afsi(&new_afsi, &obj); /* in-place update */
+	afs_event(AFSI_CHANGE, &cad->pb, &aced);
+	return 1;
+}
+
+static void com_setatt_callback(int fd, const struct osl_object *query)
+{
+	char *p;
+	int ret;
+	size_t len;
+	struct change_atts_data cad = {
+		.pb = {
+			.max_size = shm_get_shmmax(),
+			.max_size_handler = afs_max_size_handler,
+			.private_data = &(struct afs_max_size_handler_data) {
+				.fd = fd,
+				.band = SBD_OUTPUT
+			}
+		}
+	};
+	struct pattern_match_data pmd = {
+		.table = audio_file_table,
+		.loop_col_num = AFTCOL_HASH,
+		.match_col_num = AFTCOL_PATH,
+		.pm_flags = PM_SKIP_EMPTY_NAME,
+		.data = &cad,
+		.action = change_atts
+	};
+
+	for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
+		char c;
+		unsigned char bitnum;
+
+		len = strlen(p);
+		ret = -E_ATTR_SYNTAX;
+		if (len == 0)
+			goto out;
+		c = p[len - 1];
+		if (c != '+' && c != '-')
+			break;
+		p[len - 1] = '\0';
+		ret = get_attribute_bitnum_by_name(p, &bitnum);
+		if (ret < 0)
+			goto out;
+		if (c == '+')
+			cad.add_mask |= (1UL << bitnum);
+		else
+			cad.del_mask |= (1UL << bitnum);
+	}
+	ret = -E_ATTR_SYNTAX;
+	if (!cad.add_mask && !cad.del_mask)
+		goto out;
+	pmd.patterns.data = p;
+	assert(p < (char *)query->data + query->size);
+	pmd.patterns.size = (char *)query->data + query->size - p;
+	ret = for_each_matching_row(&pmd);
+	if (ret < 0)
+		goto out;
+	if (pmd.num_matches == 0)
+		para_printf(&cad.pb, "no matches\n");
+out:
+	if (ret < 0)
+		para_printf(&cad.pb, "%s\n", para_strerror(-ret));
+	if (cad.pb.offset)
+		pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
+	free(cad.pb.buf);
+}
+
+int com_setatt(struct command_context *cc)
+{
+	if (cc->argc < 3)
+		return -E_ATTR_SYNTAX;
+	return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
+		com_setatt_callback, afs_cb_result_handler, cc);
+}
+
 static void afs_stat_callback(int fd, const struct osl_object *query)
 {
 	int *parser_friendly = query->data;