| commit | a7bf57352059277239794950f9aac33d05741f1a | [log] [tgz] |
|---|---|---|
| author | Olivier Houchard <ohouchard@haproxy.com> | Thu Feb 27 17:26:13 2020 +0100 |
| committer | Olivier Houchard <cognet@ci0.org> | Tue Mar 17 15:30:07 2020 +0100 |
| tree | 3d74c63a59c06ba3b6ab0c25a32157b0115d530b | |
| parent | 2ea1b49832e7617ec97ac7df7a87c8d8328b17e2 [diff] |
MEDIUM: fd: Introduce a running mask, and use it instead of the spinlock. In the struct fdtab, introduce a new mask, running_mask. Each thread should add its bit before using the fd. Use the running_mask instead of a lock, in fd_insert/fd_delete, we'll just spin as long as the mask is non-zero, to be sure we access the data exclusively. fd_set_running_excl() spins until the mask is 0, fd_set_running() just adds the thread bit, and fd_clr_running() removes it.