/**
* Dump the whole in-memory cache onto disk.
*/
static void
dump_cache(bool force)
{
FILE *f;
file_path_t fp;
if (!force && !cache_dirty)
return;
file_path_set(&fp, settings_config_dir(), "sha1_cache");
f = file_config_open_write("SHA-1 cache", &fp);
if (f) {
struct dump_cache_context ctx;
fputs(sha1_persistent_cache_file_header, f);
ctx.f = f;
ctx.forced = force;
hikset_foreach(sha1_cache, dump_cache_one_entry, &ctx);
if (file_config_close(f, &fp)) {
cache_dirty = FALSE;
}
}
/*
* Update the timestamp even on failure to avoid that we retry this
* too frequently.
*/
cache_dumped = tm_time();
}
/**
* Save upload statistics to file.
*/
static void
upload_stats_dump_history(void)
{
FILE *out;
file_path_t fp;
/* open file for writing */
file_path_set(&fp, settings_config_dir(), ul_stats_file);
out = file_config_open_write(ul_stats_what, &fp);
if (NULL == out)
return;
file_config_preamble(out, "Upload statistics");
fputs(
"#\n"
"# Format is:\n"
"# File basename <TAB> size <TAB> attempts <TAB> completed\n"
"# <TAB> bytes_sent-high <TAB> bytes_sent-low\n"
"# <TAB> time of last request <TAB> time of last served chunk\n"
"# <TAB> SHA1 (\"*\" if unknown)\n"
"#\n"
"\n",
out
);
/*
* Don't check this sooner so that the file is cleared, if the user
* cleared the history.
*/
if (upload_stats_list) {
/* for each element in uploads_stats_list, write out to hist file */
hash_list_foreach(upload_stats_list, upload_stats_dump_item, out);
}
file_config_close(out, &fp);
dirty = FALSE;
}
/**
* Store known GWC URLs.
* They are normally saved in ~/.gtk-gnutella/gwcache.
*/
static void
gwc_store(void)
{
FILE *out;
int i;
int j;
file_path_t fp;
file_path_set(&fp, settings_config_dir(), gwc_file);
out = file_config_open_write(gwc_what, &fp);
if (!out)
return;
file_config_preamble(out, "Gnutella web cache URLs");
/*
* Start dumping with the next slot we'll supersede, so that the oldest
* entries are at the top: when the cache is full, we'll loop over at
* retrieve time and will start superseding the oldest entries.
*/
i = gwc_url_slot + 1;
if (i >= MAX_GWC_URLS)
i = 0;
for (j = 0; j < MAX_GWC_URLS; j++) {
const char *url = gwc_url[i].url;
i = (i + 1) % MAX_GWC_URLS;
if (url == NULL)
continue;
fprintf(out, "%s\n", url);
}
if (file_config_close(out, &fp))
gwc_file_dirty = FALSE;
}