riscv/qemu - qemu - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
blueswir1	55f11ca3c2	Rename sigev_signo to avoid FreeBSD problems (Juergen Lock) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6414 c046a42c-6fe2-441c-8c8c-71466251a162	18 years ago
blueswir1	c9db92fcc1	Use kill instead of sigqueue: re-enables AIO on OpenBSD git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6360 c046a42c-6fe2-441c-8c8c-71466251a162	18 years ago
aliguori	f094a78220	Fix race in POSIX AIO emulation (Jan Kiszka) When we cancel an AIO request that is already being processed by aio_thread, qemu_paio_cancel should return QEMU_PAIO_NOTCANCELED as long as aio_thread isn't done with this request. But as the latter currently updates aiocb->ret after every block of the request, we may report QEMU_PAIO_ALLDONE too early. Futhermore, in case some zero-length request should have been queued, aiocb->ret is never set to != -EINPROGRESS and callers like raw_aio_cancel could get stuck in an endless loop. Fix those issues by updating aiocb->ret _after_ the request has been fully processed. This also simplifies the locking. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6278 c046a42c-6fe2-441c-8c8c-71466251a162	18 years ago
blueswir1	1d6198c3b0	Remove unnecessary trailing newlines git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6000 c046a42c-6fe2-441c-8c8c-71466251a162	18 years ago
aliguori	3c529d9359	Replace posix-aio with custom thread pool glibc implements posix-aio as a thread pool and imposes a number of limitations. 1) it limits one request per-file descriptor. we hack around this by dup()'ing file descriptors which is hideously ugly 2) it's impossible to add new interfaces and we need a vectored read/write operation to properly support a zero-copy API. What has been suggested to me by glibc folks, is to implement whatever new interfaces we want and then it can eventually be proposed for standardization. This requires that we implement our own posix-aio implementation though. This patch implements posix-aio using pthreads. It immediately eliminates the need for fd pooling. It performs at least as well as the current posix-aio code (in some circumstances, even better). Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5996 c046a42c-6fe2-441c-8c8c-71466251a162	18 years ago