mirror of
https://github.com/transmission/transmission
synced 2024-12-27 18:18:10 +00:00
205abbbcce
* refactor: use cstdint for intX_t types * refactor: iwyu sstring_view * refactor: iwyu <cstring> * refactor: iwyu <vector>
107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
// This file Copyright © 2015-2022 Mnemosyne LLC.
|
|
// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
|
|
// or any future license endorsed by Mnemosyne LLC.
|
|
// License text can be found in the licenses/ folder.
|
|
|
|
#include <cerrno>
|
|
#include <string>
|
|
#include <unordered_set>
|
|
|
|
#include <event2/event.h>
|
|
|
|
#include <fmt/core.h>
|
|
|
|
#define LIBTRANSMISSION_WATCHDIR_MODULE
|
|
|
|
#include "transmission.h"
|
|
#include "log.h"
|
|
#include "tr-assert.h"
|
|
#include "utils.h"
|
|
#include "watchdir.h"
|
|
#include "watchdir-common.h"
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
struct tr_watchdir_generic
|
|
{
|
|
tr_watchdir_backend base;
|
|
|
|
struct event* event;
|
|
std::unordered_set<std::string> dir_entries;
|
|
};
|
|
|
|
#define BACKEND_UPCAST(b) (reinterpret_cast<tr_watchdir_generic*>(b))
|
|
|
|
/* Non-static and mutable for unit tests. default to 10 sec. */
|
|
auto tr_watchdir_generic_interval = timeval{ 10, 0 };
|
|
|
|
/***
|
|
****
|
|
***/
|
|
|
|
static void tr_watchdir_generic_on_event(evutil_socket_t /*fd*/, short /*type*/, void* context)
|
|
{
|
|
auto const handle = static_cast<tr_watchdir_t>(context);
|
|
auto* const backend = BACKEND_UPCAST(tr_watchdir_get_backend(handle));
|
|
|
|
tr_watchdir_scan(handle, &backend->dir_entries);
|
|
}
|
|
|
|
static void tr_watchdir_generic_free(tr_watchdir_backend* backend_base)
|
|
{
|
|
auto* const backend = BACKEND_UPCAST(backend_base);
|
|
|
|
if (backend == nullptr)
|
|
{
|
|
return;
|
|
}
|
|
|
|
TR_ASSERT(backend->base.free_func == &tr_watchdir_generic_free);
|
|
|
|
if (backend->event != nullptr)
|
|
{
|
|
event_del(backend->event);
|
|
event_free(backend->event);
|
|
}
|
|
|
|
delete backend;
|
|
}
|
|
|
|
tr_watchdir_backend* tr_watchdir_generic_new(tr_watchdir_t handle)
|
|
{
|
|
auto* backend = new tr_watchdir_generic{};
|
|
backend->base.free_func = &tr_watchdir_generic_free;
|
|
|
|
if ((backend
|
|
->event = event_new(tr_watchdir_get_event_base(handle), -1, EV_PERSIST, &tr_watchdir_generic_on_event, handle)) ==
|
|
nullptr)
|
|
{
|
|
auto const error_code = errno;
|
|
tr_logAddError(fmt::format(
|
|
_("Couldn't create event: {error} ({error_code})"),
|
|
fmt::arg("error", tr_strerror(error_code)),
|
|
fmt::arg("error_code", error_code)));
|
|
goto FAIL;
|
|
}
|
|
|
|
if (event_add(backend->event, &tr_watchdir_generic_interval) == -1)
|
|
{
|
|
auto const error_code = errno;
|
|
tr_logAddError(fmt::format(
|
|
_("Couldn't add event: {error} ({error_code})"),
|
|
fmt::arg("error", tr_strerror(error_code)),
|
|
fmt::arg("error_code", error_code)));
|
|
goto FAIL;
|
|
}
|
|
|
|
/* Run initial scan on startup */
|
|
event_active(backend->event, EV_READ, 0);
|
|
|
|
return BACKEND_DOWNCAST(backend);
|
|
|
|
FAIL:
|
|
tr_watchdir_generic_free(BACKEND_DOWNCAST(backend));
|
|
return nullptr;
|
|
}
|