Hello
[In the preface I want to say that it can be valgrind's false positive].
I'm building a C++ class that uses libuv (1.13.0) and libcurl (7.54.1) for
non-blocking file downloading. UV loop is being initialized in object's
constructor, deinitialized in destructor and it's being kept a class member.
When it's a pointer type class member (uv_loop_t *), initialized via malloc:
loop = (uv_loop_t *) malloc(sizeof(uv_loop_t));
if (loop == NULL) {
throw std::bad_alloc();
}
uv_loop_init(loop);
and deinitialized via uv_loop_close(loop) there's no memory leak.
But when it's a struct type class member (uv_loop_t) it's initialized
automatically while object construction, then in constructor I call
uv_loop_init(&loop) and uv_loop_close(&loop) in destructor, valgrind
reports a memory leak:
==2337== 256 bytes in 1 blocks are definitely lost in loss record 790 of
840
==2337== at 0x4C2FC47: realloc (vg_replace_malloc.c:785)
==2337== by 0x816560: maybe_resize (core.c:808)
==2337== by 0x816560: uv__io_start (core.c:847)
==2337== by 0x8181EB: uv_poll_start (poll.c:120)
==2337== by 0x417ECE:
imageresizer::engine::FileDownloader::handle_socket(void*, int, int, void*)
(FileDownloader.cpp:298)
==2337== by 0x417E28:
imageresizer::engine::FileDownloader::handle_socket_cb(void*, int, int,
void*, void*) (FileDownloader.cpp:277)
==2337== by 0x7D1798: singlesocket (in
/opt/WP/imageresizer-worker/dist/Debug/GNU-Linux/imageresizer-worker)
==2337== by 0x7D4AD9: multi_socket (in
/opt/WP/imageresizer-worker/dist/Debug/GNU-Linux/imageresizer-worker)
==2337== by 0x7D4C86: curl_multi_socket_action (in
/opt/WP/imageresizer-worker/dist/Debug/GNU-Linux/imageresizer-worker)
==2337== by 0x417D59:
imageresizer::engine::FileDownloader::on_timeout(uv_timer_s*)
(FileDownloader.cpp:248)
==2337== by 0x417D25:
imageresizer::engine::FileDownloader::on_timeout_cb(uv_timer_s*)
(FileDownloader.cpp:242)
==2337== by 0x81D4B4: uv__run_timers (timer.c:165)
==2337== by 0x8159AB: uv_run (core.c:353)
Can you help me with getting rid of that memory leak?
--
regards
Przemysław Sobala
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