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refactor: use std::map for tr_announcer.scrape_info (#1864)

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* refactor: use std::map for tr_announcer.scrape_info
This commit is contained in:
Charles Kerr 2021-09-30 13:18:46 -05:00 committed by GitHub
parent 7c4f66c44e
commit a76cf22211
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 37 deletions
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55
libtransmission/announcer.cc
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@ -11,7 +11,9 @@
#include <cstdio>
#include <cstdlib> /* qsort() */
#include <cstring> /* strcmp(), memcpy(), strncmp() */
#include <map>
#include <set>
#include <vector>
#include <event2/buffer.h>
#include <event2/event.h> /* evtimer */
@ -129,33 +131,24 @@ struct StopsCompare
struct tr_scrape_info
{
char* url;
std::string const url;
int multiscrape_max;
tr_scrape_info(std::string const& url_in, int const multiscrape_max_in)
: url{ url_in }
, multiscrape_max{ multiscrape_max_in }
{
}
};
static void scrapeInfoFree(void* va)
{
auto* a = static_cast<struct tr_scrape_info*>(va);
tr_free(a->url);
tr_free(a);
}
static int compareScrapeInfo(void const* va, void const* vb)
{
auto const* a = static_cast<struct tr_scrape_info const*>(va);
auto const* b = static_cast<struct tr_scrape_info const*>(vb);
return tr_strcmp0(a->url, b->url);
}
/**
* "global" (per-tr_session) fields
*/
typedef struct tr_announcer
{
std::set<tr_announce_request*, StopsCompare> stops;
tr_ptrArray scrape_info; /* struct tr_scrape_info */
std::map<std::string, tr_scrape_info> scrape_info;
tr_session* session;
struct event* upkeepTimer;
@ -169,20 +162,10 @@ static struct tr_scrape_info* tr_announcerGetScrapeInfo(struct tr_announcer* ann
if (!tr_str_is_empty(url))
{
bool found;
auto const key = tr_scrape_info{ const_cast<char*>(url), {} };
int const pos = tr_ptrArrayLowerBound(&announcer->scrape_info, &key, compareScrapeInfo, &found);
if (found)
{
info = static_cast<struct tr_scrape_info*>(tr_ptrArrayNth(&announcer->scrape_info, pos));
}
else
{
info = tr_new0(struct tr_scrape_info, 1);
info->url = tr_strdup(url);
info->multiscrape_max = TR_MULTISCRAPE_MAX;
tr_ptrArrayInsert(&announcer->scrape_info, info, pos);
}
auto const urlstr = std::string{ url };
auto& scrapes = announcer->scrape_info;
auto const it = scrapes.try_emplace(urlstr, urlstr, TR_MULTISCRAPE_MAX);
info = &it.first->second;
}
return info;
@ -216,8 +199,6 @@ void tr_announcerClose(tr_session* session)
event_free(announcer->upkeepTimer);
announcer->upkeepTimer = nullptr;
tr_ptrArrayDestruct(&announcer->scrape_info, scrapeInfoFree);
session->announcer = nullptr;
delete announcer;
}
@ -1389,7 +1370,7 @@ static tr_tier* find_tier(tr_torrent* tor, char const* scrape)
{
tr_tracker const* const tracker = tt->tiers[i].currentTracker;
if (tracker != nullptr && tracker->scrape_info != nullptr && tr_strcmp0(scrape, tracker->scrape_info->url) == 0)
if (tracker != nullptr && tracker->scrape_info != nullptr && tracker->scrape_info->url == scrape)
{
return &tt->tiers[i];
}
@ -1575,7 +1556,7 @@ static void multiscrape(tr_announcer* announcer, std::vector<tr_tier*> const& ti
continue;
}
if (tr_strcmp0(req->url, scrape_info->url) != 0)
if (scrape_info->url != req->url)
{
continue;
}
@ -1590,7 +1571,7 @@ static void multiscrape(tr_announcer* announcer, std::vector<tr_tier*> const& ti
if (!found && request_count < MAX_SCRAPES_PER_UPKEEP)
{
tr_scrape_request* req = &requests[request_count++];
req->url = scrape_info->url;
req->url = scrape_info->url.c_str();
tier_build_log_name(tier, req->log_name, sizeof(req->log_name));
memcpy(req->info_hash[req->info_hash_count++], hash, SHA_DIGEST_LENGTH);
@ -1802,7 +1783,7 @@ tr_tracker_stat* tr_announcerStats(tr_torrent const* torrent, int* setmeTrackerC
if (tracker->scrape_info != nullptr)
{
tr_strlcpy(st->scrape, tracker->scrape_info->url, sizeof(st->scrape));
tr_strlcpy(st->scrape, tracker->scrape_info->url.c_str(), sizeof(st->scrape));
}
else
{