From 97a5eb0df2b48bfb0c359fb7abc6ee8f0b970238 Mon Sep 17 00:00:00 2001 From: Alexander Butenko Date: Sun, 17 Jan 2010 22:49:13 +0100 Subject: [PATCH] Read cache asynchronously, use GOutputStream, plug a leak 1. We are now reading from the cache asyncronously. Fixing UI freezes. 2. Cache writing switched to GOutputStream. One open/ close per file 3. Plugged a leak of cache headers in web_cache_message_rewrite () 4. We don't need the URI in web_cache_mesage_got_headers_cb () --- extensions/web-cache.c | 202 +++++++++++++++++++++++++---------------- 1 file changed, 123 insertions(+), 79 deletions(-) diff --git a/extensions/web-cache.c b/extensions/web-cache.c index df5b8ce0..4e4d07cd 100644 --- a/extensions/web-cache.c +++ b/extensions/web-cache.c @@ -41,6 +41,7 @@ web_cache_get_cached_path (MidoriExtension* extension, checksum = g_compute_checksum_for_string (G_CHECKSUM_MD5, uri, -1); folder = g_strdup_printf ("%c%c", checksum[0], checksum[1]); sub_path = g_build_path (G_DIR_SEPARATOR_S, cache_path, folder, NULL); + /* FIXME: Wrong place? */ katze_mkdir_with_parents (sub_path, 0700); g_free (folder); @@ -87,6 +88,7 @@ web_cache_get_headers (gchar* filename) GHashTable* headers; FILE* file; gchar* dsc_filename; + gchar line[128]; if (!filename) return NULL; @@ -100,45 +102,46 @@ web_cache_get_headers (gchar* filename) (GDestroyNotify)g_free, (GDestroyNotify)g_free); - if ((file = g_fopen (dsc_filename, "r"))) + if (!(file = g_fopen (dsc_filename, "r"))) { - gchar line[128]; - while (fgets (line, 128, file)) - { - gchar** data; + g_hash_table_destroy (headers); + g_free (dsc_filename); + return NULL; + } + while (fgets (line, 128, file)) + { + gchar** data; - if (line == NULL) - continue; + if (line == NULL) + continue; - g_strchomp (line); - data = g_strsplit (line, ":", 2); - if (data[0] && data[1]) - g_hash_table_insert (headers, g_strdup (data[0]), - g_strdup (g_strchug (data[1]))); - g_strfreev (data); - } - fclose (file); - g_free (dsc_filename); - return headers; + g_strchomp (line); + data = g_strsplit (line, ":", 2); + if (data[0] && data[1]) + g_hash_table_insert (headers, g_strdup (data[0]), + g_strdup (g_strchug (data[1]))); + g_strfreev (data); } - g_hash_table_destroy (headers); + fclose (file); g_free (dsc_filename); - return NULL; + return headers; } -static gboolean +static GFile* web_cache_tmp_prepare (gchar* filename) { - gchar* tmp_filename = g_strdup_printf ("%s.tmp", filename); + GFile *file; + gchar* tmp_filename = g_strdup_printf ("%s.tmp", filename); if (g_access (tmp_filename, F_OK) == 0) { g_free (tmp_filename); - return FALSE; + return NULL; } - g_file_set_contents (tmp_filename, "", -1, NULL); + file = g_file_new_for_path (tmp_filename); g_free (tmp_filename); - return TRUE; + + return file; } static void @@ -146,27 +149,36 @@ web_cache_set_content_type (SoupMessage* msg, SoupBuffer* buffer) { #if WEBKIT_CHECK_VERSION (1, 1, 15) - const char *ct; + gchar* sniffed_type; SoupContentSniffer* sniffer = soup_content_sniffer_new (); - ct = soup_content_sniffer_sniff (sniffer, msg, buffer, NULL); - if (!ct) - ct = soup_message_headers_get_one (msg->response_headers, "Content-Type"); - if (ct) - g_signal_emit_by_name (msg, "content-sniffed", ct, NULL); + if ((sniffed_type = soup_content_sniffer_sniff (sniffer, msg, buffer, NULL))) + { + g_signal_emit_by_name (msg, "content-sniffed", sniffed_type, NULL); + g_free (sniffed_type); + } + else + { + const gchar* content_type = soup_message_headers_get_one ( + msg->response_headers, "Content-Type"); + g_signal_emit_by_name (msg, "content-sniffed", content_type, NULL); + } #endif } static void -web_cache_message_finished_cb (SoupMessage* msg, - gchar* filename) +web_cache_message_finished_cb (SoupMessage* msg, + GOutputStream* stream) { gchar* headers; gchar* tmp_headers; gchar* tmp_data; + gchar* filename; + filename = g_object_get_data (G_OBJECT (stream), "filename"); headers = g_strdup_printf ("%s.dsc", filename); tmp_headers = g_strdup_printf ("%s.dsc.tmp", filename); tmp_data = g_strdup_printf ("%s.tmp", filename); + g_output_stream_close (stream, NULL, NULL); if (msg->status_code == SOUP_STATUS_OK) { @@ -179,45 +191,74 @@ web_cache_message_finished_cb (SoupMessage* msg, g_unlink (tmp_headers); } + g_object_unref (stream); g_free (headers); g_free (tmp_headers); g_free (tmp_data); } +static void web_cache_pause_message (SoupMessage* msg) +{ + SoupSession* session; + session = g_object_get_data (G_OBJECT (msg), "session"); + soup_session_pause_message (session, msg); +} + +static void web_cache_unpause_message (SoupMessage* msg) +{ + SoupSession* session; + session = g_object_get_data (G_OBJECT (msg), "session"); + soup_session_unpause_message (session, msg); +} + static void web_cache_message_got_chunk_cb (SoupMessage* msg, SoupBuffer* chunk, - gchar* filename) + GOutputStream* stream) { - GFile *file; - GOutputStream *stream; - gchar *tmp_filename; - if (!chunk->data || !chunk->length) return; + /* FIXME g_output_stream_write_async (stream, chunk->data, chunk->length, + G_PRIORITY_DEFAULT, NULL, NULL, (gpointer)chunk->length); */ + g_output_stream_write (stream, chunk->data, chunk->length, NULL, NULL); +} - tmp_filename = g_strdup_printf ("%s.tmp", filename); - file = g_file_new_for_path (tmp_filename); - if ((stream = (GOutputStream*)g_file_append_to (file, 0, NULL, NULL))) +static void +web_cache_message_rewrite_async_cb (GFile *file, + GAsyncResult* res, + SoupMessage* msg) +{ + SoupBuffer *buffer; + char *data; + gsize length; + GError *error = NULL; + + if (g_file_load_contents_finish (file, res, &data, &length, NULL, &error)) { - g_output_stream_write (stream, chunk->data, chunk->length, NULL, NULL); - g_object_unref (stream); + buffer = soup_buffer_new (SOUP_MEMORY_TEMPORARY, data, length); + web_cache_set_content_type (msg, buffer); + soup_message_body_append_buffer (msg->response_body, buffer); + /* FIXME? */ + web_cache_unpause_message (msg); + g_signal_emit_by_name (msg, "got-chunk", buffer, NULL); + soup_buffer_free (buffer); + g_free (data); + soup_message_got_body (msg); + soup_message_finished (msg); } g_object_unref (file); - g_free (tmp_filename); + g_object_unref (msg); } static void web_cache_message_rewrite (SoupMessage* msg, gchar* filename) { - GHashTable* cache_headers = web_cache_get_headers (filename); GHashTableIter iter; - SoupBuffer *buffer; gpointer key, value; - char *data; - gsize length; + GFile *file; + GHashTable* cache_headers = web_cache_get_headers (filename); if (!cache_headers) return; @@ -226,36 +267,32 @@ web_cache_message_rewrite (SoupMessage* msg, while (g_hash_table_iter_next (&iter, &key, &value)) soup_message_headers_replace (msg->response_headers, key, value); g_signal_emit_by_name (msg, "got-headers", NULL); - - g_file_get_contents (filename, &data, &length, NULL); - if (data && length) - { - buffer = soup_buffer_new (SOUP_MEMORY_TEMPORARY, data, length); - web_cache_set_content_type (msg, buffer); - soup_message_body_append_buffer (msg->response_body, buffer); - g_signal_emit_by_name (msg, "got-chunk", buffer, NULL); - soup_buffer_free (buffer); - g_free (data); - } - soup_message_got_body (msg); - soup_message_finished (msg); + g_hash_table_destroy (cache_headers); + + /* FIXME? It seems libsoup already said "goodbye" by the time + the asynchronous function is starting to send data */ + web_cache_pause_message (msg); + file = g_file_new_for_path (filename); + g_free (filename); + g_object_ref (msg); + g_file_load_contents_async (file, NULL, + (GAsyncReadyCallback)web_cache_message_rewrite_async_cb, msg); } static void web_cache_mesage_got_headers_cb (SoupMessage* msg, gchar* filename) { - SoupURI* soup_uri = soup_message_get_uri (msg); - gchar* uri; const gchar* nocache; SoupMessageHeaders *hdrs = msg->response_headers; + const char* cl; /* Skip files downloaded by the user */ if (g_object_get_data (G_OBJECT (msg), "midori-web-cache-download")) return; /* Skip big files */ - const char* cl = soup_message_headers_get_one (hdrs, "Content-Length"); + cl = soup_message_headers_get_one (hdrs, "Content-Length"); if (cl && atoi (cl) > MAXLENGTH) return; @@ -268,32 +305,38 @@ web_cache_mesage_got_headers_cb (SoupMessage* msg, return; } - uri = soup_uri ? soup_uri_to_string (soup_uri, FALSE) : g_strdup (""); if (msg->status_code == SOUP_STATUS_NOT_MODIFIED) { - /* g_debug ("loading from cache: %s -> %s", uri, filename); */ + /* g_debug ("loading from cache: %s", filename); */ g_signal_handlers_disconnect_by_func (msg, web_cache_mesage_got_headers_cb, filename); web_cache_message_rewrite (msg, filename); - g_free (filename); } else if (msg->status_code == SOUP_STATUS_OK) { - /* g_debug ("updating cache: %s -> %s", uri, filename); */ - if (!web_cache_tmp_prepare (filename)) - { - g_free (uri); + GFile* file; + GOutputStream* ostream; + + /* g_debug ("updating cache: %s", filename); */ + if (!(file = web_cache_tmp_prepare (filename))) return; - } - if (web_cache_save_headers (msg, filename)) - { - g_signal_connect (msg, "got-chunk", - G_CALLBACK (web_cache_message_got_chunk_cb), filename); - g_signal_connect (msg, "finished", - G_CALLBACK (web_cache_message_finished_cb), filename); - } + if (!web_cache_save_headers (msg, filename)) + return; + + ostream = (GOutputStream*)g_file_append_to (file, + G_FILE_CREATE_PRIVATE | G_FILE_CREATE_REPLACE_DESTINATION, NULL, NULL); + g_object_unref (file); + + if (!ostream) + return; + + g_object_set_data_full (G_OBJECT (ostream), "filename", + filename, (GDestroyNotify)g_free); + g_signal_connect (msg, "got-chunk", + G_CALLBACK (web_cache_message_got_chunk_cb), ostream); + g_signal_connect (msg, "finished", + G_CALLBACK (web_cache_message_finished_cb), ostream); } - g_free (uri); } static void @@ -324,6 +367,7 @@ web_cache_session_request_queued_cb (SoupSession* session, "If-Modified-Since", last_modified); g_hash_table_destroy (cache_headers); } + g_object_set_data (G_OBJECT (msg), "session", session); g_signal_connect (msg, "got-headers", G_CALLBACK (web_cache_mesage_got_headers_cb), filename); -- 2.39.5