Team2890/allwpilib
4
0
Fork 0
mirror of https://github.com/wpilibsuite/allwpilib synced 2026-07-05 03:21:42 +00:00
Code Issues Packages Projects Releases Wiki Activity

wpiutil: uv::Async: Keep weak reference to loop

Browse Source 
Other handles can only be used within the loop itself, but Async is intended
to be used from another thread.  This introduces the possibility of a race
condition between the loop being destroyed and the Async being destroyed.
Change Async to keep a weak reference to a loop and check it before performing
libuv operations.
This commit is contained in:
Peter Johnson
2018-09-16 15:36:19 -07:00
parent 1a7a0db1ff
commit 172e438cd6
4 changed files with 100 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
wpiutil/src/main/native/include/wpi/uv/Handle.h
View File

@@ -104,7 +104,9 @@ class Handle : public std::enable_shared_from_this<Handle> {
*
* @return True if the handle is closing or closed, false otherwise.
*/
bool IsClosing() const noexcept { return uv_is_closing(m_uv_handle) != 0; }
bool IsClosing() const noexcept {
return m_closed || uv_is_closing(m_uv_handle) != 0;
}
/**
* Request handle to be closed.
@@ -219,6 +221,7 @@ class Handle : public std::enable_shared_from_this<Handle> {
void Keep() noexcept { m_self = shared_from_this(); }
void Release() noexcept { m_self.reset(); }
void ForceClosed() noexcept { m_closed = true; }
static void AllocBuf(uv_handle_t* handle, size_t size, uv_buf_t* buf);
static void DefaultFreeBuf(Buffer& buf);