PlaylistFile: use std::list instead of GPtrArray

This commit is contained in:
Max Kellermann
2012-09-27 23:48:29 +02:00
parent 7298b6c846
commit 609f6ce66d
6 changed files with 114 additions and 159 deletions

View File

@@ -138,83 +138,68 @@ playlist_errno(GError **error_r)
}
}
static struct stored_playlist_info *
load_playlist_info(const char *parent_path_fs, const char *name_fs)
static bool
LoadPlaylistFileInfo(PlaylistFileInfo &info,
const char *parent_path_fs, const char *name_fs)
{
size_t name_length = strlen(name_fs);
if (name_length < sizeof(PLAYLIST_FILE_SUFFIX) ||
memchr(name_fs, '\n', name_length) != NULL)
return NULL;
return false;
if (!g_str_has_suffix(name_fs, PLAYLIST_FILE_SUFFIX))
return NULL;
return false;
char *path_fs = g_build_filename(parent_path_fs, name_fs, NULL);
struct stat st;
int ret = stat(path_fs, &st);
g_free(path_fs);
if (ret < 0 || !S_ISREG(st.st_mode))
return NULL;
return false;
char *name = g_strndup(name_fs,
name_length + 1 - sizeof(PLAYLIST_FILE_SUFFIX));
char *name_utf8 = fs_charset_to_utf8(name);
g_free(name);
if (name_utf8 == NULL)
return NULL;
return false;
struct stored_playlist_info *playlist =
g_new(struct stored_playlist_info, 1);
playlist->name = name_utf8;
playlist->mtime = st.st_mtime;
return playlist;
info.name = name_utf8;
info.mtime = st.st_mtime;
return true;
}
GPtrArray *
spl_list(GError **error_r)
PlaylistFileList
ListPlaylistFiles(GError **error_r)
{
PlaylistFileList list;
const char *parent_path_fs = spl_map(error_r);
if (parent_path_fs == NULL)
return NULL;
return list;
DIR *dir = opendir(parent_path_fs);
if (dir == NULL) {
g_set_error_literal(error_r, g_file_error_quark(), errno,
g_strerror(errno));
return NULL;
return list;
}
GPtrArray *list = g_ptr_array_new();
PlaylistFileInfo info;
struct dirent *ent;
while ((ent = readdir(dir)) != NULL) {
struct stored_playlist_info *playlist =
load_playlist_info(parent_path_fs, ent->d_name);
if (playlist != NULL)
g_ptr_array_add(list, playlist);
if (LoadPlaylistFileInfo(info, parent_path_fs, ent->d_name))
list.push_back(std::move(info));
}
closedir(dir);
return list;
}
void
spl_list_free(GPtrArray *list)
{
for (unsigned i = 0; i < list->len; ++i) {
struct stored_playlist_info *playlist =
(struct stored_playlist_info *)
g_ptr_array_index(list, i);
g_free(playlist->name);
g_free(playlist);
}
g_ptr_array_free(list, true);
}
static bool
spl_save(GPtrArray *list, const char *utf8path, GError **error_r)
SavePlaylistFile(const PlaylistFileContents &contents, const char *utf8path,
GError **error_r)
{
assert(utf8path != NULL);
@@ -232,34 +217,32 @@ spl_save(GPtrArray *list, const char *utf8path, GError **error_r)
return false;
}
for (unsigned i = 0; i < list->len; ++i) {
const char *uri = (const char *)g_ptr_array_index(list, i);
playlist_print_uri(file, uri);
}
for (const auto &uri_utf8 : contents)
playlist_print_uri(file, uri_utf8.c_str());
fclose(file);
return true;
}
GPtrArray *
spl_load(const char *utf8path, GError **error_r)
PlaylistFileContents
LoadPlaylistFile(const char *utf8path, GError **error_r)
{
PlaylistFileContents contents;
if (spl_map(error_r) == NULL)
return NULL;
return contents;
char *path_fs = spl_map_to_fs(utf8path, error_r);
if (path_fs == NULL)
return NULL;
return contents;
FILE *file = fopen(path_fs, "r");
g_free(path_fs);
if (file == NULL) {
playlist_errno(error_r);
return NULL;
return contents;
}
GPtrArray *list = g_ptr_array_new();
GString *buffer = g_string_sized_new(1024);
char *s;
while ((s = read_text_line(file, buffer)) != NULL) {
@@ -277,47 +260,13 @@ spl_load(const char *utf8path, GError **error_r)
} else
s = g_strdup(s);
g_ptr_array_add(list, s);
if (list->len >= playlist_max_length)
contents.emplace_back(s);
if (contents.size() >= playlist_max_length)
break;
}
fclose(file);
return list;
}
void
spl_free(GPtrArray *list)
{
for (unsigned i = 0; i < list->len; ++i) {
char *uri = (char *)g_ptr_array_index(list, i);
g_free(uri);
}
g_ptr_array_free(list, true);
}
static char *
spl_remove_index_internal(GPtrArray *list, unsigned idx)
{
assert(idx < list->len);
char *uri = (char *)g_ptr_array_remove_index(list, idx);
assert(uri != NULL);
return uri;
}
static void
spl_insert_index_internal(GPtrArray *list, unsigned idx, char *uri)
{
assert(idx <= list->len);
g_ptr_array_add(list, uri);
memmove(list->pdata + idx + 1, list->pdata + idx,
(list->len - idx - 1) * sizeof(list->pdata[0]));
g_ptr_array_index(list, idx) = uri;
return contents;
}
bool
@@ -329,24 +278,28 @@ spl_move_index(const char *utf8path, unsigned src, unsigned dest,
what the hell.. */
return true;
GPtrArray *list = spl_load(utf8path, error_r);
if (list == NULL)
GError *error = nullptr;
auto contents = LoadPlaylistFile(utf8path, &error);
if (contents.empty() && error != nullptr) {
g_propagate_error(error_r, error);
return false;
}
if (src >= list->len || dest >= list->len) {
spl_free(list);
if (src >= contents.size() || dest >= contents.size()) {
g_set_error_literal(error_r, playlist_quark(),
PLAYLIST_RESULT_BAD_RANGE,
"Bad range");
return false;
}
char *uri = spl_remove_index_internal(list, src);
spl_insert_index_internal(list, dest, uri);
const auto src_i = std::next(contents.begin(), src);
auto value = std::move(*src_i);
contents.erase(src_i);
bool result = spl_save(list, utf8path, error_r);
const auto dest_i = std::next(contents.begin(), dest);
contents.insert(dest_i, std::move(value));
spl_free(list);
bool result = SavePlaylistFile(contents, utf8path, error_r);
idle_add(IDLE_STORED_PLAYLIST);
return result;
@@ -398,23 +351,23 @@ spl_delete(const char *name_utf8, GError **error_r)
bool
spl_remove_index(const char *utf8path, unsigned pos, GError **error_r)
{
GPtrArray *list = spl_load(utf8path, error_r);
if (list == NULL)
GError *error = nullptr;
auto contents = LoadPlaylistFile(utf8path, &error);
if (contents.empty() && error != nullptr) {
g_propagate_error(error_r, error);
return false;
}
if (pos >= list->len) {
spl_free(list);
if (pos >= contents.size()) {
g_set_error_literal(error_r, playlist_quark(),
PLAYLIST_RESULT_BAD_RANGE,
"Bad range");
return false;
}
char *uri = spl_remove_index_internal(list, pos);
g_free(uri);
bool result = spl_save(list, utf8path, error_r);
contents.erase(std::next(contents.begin(), pos));
spl_free(list);
bool result = SavePlaylistFile(contents, utf8path, error_r);
idle_add(IDLE_STORED_PLAYLIST);
return result;