我正在尝试查找如何修复使用Valgrind运行此程序时出现的内存泄漏问题。这些泄漏发生在nShell_client_main中的两个分配中。但我不确定如何正确释放它们。
我尝试在nShell_Connect处释放它们，但这会导致libUV中止该程序。我尝试在nShell_client_main结尾处释放它们，但然后在关闭循环时出现读/写错误。有人知道我应该如何关闭这些句柄吗？ 我已经阅读了这篇文章，让我开始思考。但是，它似乎已过时，因为uv_ip4_addr在最新版本中具有不同的原型。
（nShell_main是“入口”点）
#include "nPort.h"
#include "nShell-main.h"
void nShell_Close(
uv_handle_t * term_handle
){
}
void nShell_Connect(uv_connect_t * term_handle, int status){
uv_close((uv_handle_t *) term_handle, 0);
}
nError * nShell_client_main(nShell * n_shell, uv_loop_t * n_shell_loop){
int uv_error = 0;
nError * n_error = 0;
uv_tcp_t * n_shell_socket = 0;
uv_connect_t * n_shell_connect = 0;
struct sockaddr_in dest_addr;
n_shell_socket = malloc(sizeof(uv_tcp_t));
if (!n_shell_socket){
// handle error
}
uv_error = uv_tcp_init(n_shell_loop, n_shell_socket);
if (uv_error){
// handle error
}
uv_error = uv_ip4_addr("127.0.0.1", NPORT, &dest_addr);
if (uv_error){
// handle error
}
n_shell_connect = malloc(sizeof(uv_connect_t));
if (!n_shell_connect){
// handle error
}
uv_error = uv_tcp_connect(n_shell_connect, n_shell_socket, (struct sockaddr *) &dest_addr, nShell_Connect);
if (uv_error){
// handle error
}
uv_error = uv_run(n_shell_loop, UV_RUN_DEFAULT);
if (uv_error){
// handle error
}
return 0;
}
nError * nShell_loop_main(nShell * n_shell){
int uv_error = 0;
nError * n_error = 0;
uv_loop_t * n_shell_loop = 0;
n_shell_loop = malloc(sizeof(uv_loop_t));
if (!n_shell_loop){
// handle error
}
uv_error = uv_loop_init(n_shell_loop);
if (uv_error){
// handle error
}
n_error = nShell_client_main(n_shell, n_shell_loop);
if (n_error){
// handle error
}
uv_loop_close(n_shell_loop);
free(n_shell_loop);
return 0;
}
在这段代码的switch语句结束处发生了断言（摘自Joyent在Github上的libUV页面）：
void uv_close(uv_handle_t* handle, uv_close_cb close_cb) {
assert(!(handle->flags & (UV_CLOSING | UV_CLOSED)));
handle->flags |= UV_CLOSING;
handle->close_cb = close_cb;
switch (handle->type) {
case UV_NAMED_PIPE:
uv__pipe_close((uv_pipe_t*)handle);
break;
case UV_TTY:
uv__stream_close((uv_stream_t*)handle);
break;
case UV_TCP:
uv__tcp_close((uv_tcp_t*)handle);
break;
case UV_UDP:
uv__udp_close((uv_udp_t*)handle);
break;
case UV_PREPARE:
uv__prepare_close((uv_prepare_t*)handle);
break;
case UV_CHECK:
uv__check_close((uv_check_t*)handle);
break;
case UV_IDLE:
uv__idle_close((uv_idle_t*)handle);
break;
case UV_ASYNC:
uv__async_close((uv_async_t*)handle);
break;
case UV_TIMER:
uv__timer_close((uv_timer_t*)handle);
break;
case UV_PROCESS:
uv__process_close((uv_process_t*)handle);
break;
case UV_FS_EVENT:
uv__fs_event_close((uv_fs_event_t*)handle);
break;
case UV_POLL:
uv__poll_close((uv_poll_t*)handle);
break;
case UV_FS_POLL:
uv__fs_poll_close((uv_fs_poll_t*)handle);
break;
case UV_SIGNAL:
uv__signal_close((uv_signal_t*) handle);
/* Signal handles may not be closed immediately. The signal code will */
/* itself close uv__make_close_pending whenever appropriate. */
return;
default:
assert(0); // assertion is happening here
}
uv__make_close_pending(handle);
}
我可以手动调用 uv__tcp_close，但它不在公共头文件中（而且可能也不是正确的解决方案）。