X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=iohandler.c;h=ae2ef8f9669db23dd004337f382a257e84044ad5;hb=8b7acc79b9adb4dda6cc867b90e3a1e873f4f7e8;hp=dea43552d2a37fd4d52cd58a8332694aeaf98d9f;hpb=b6825cd79cdf3e2006c22bb8cfe47a0d7c5209fa;p=qemu.git diff --git a/iohandler.c b/iohandler.c index dea43552d..ae2ef8f96 100644 --- a/iohandler.c +++ b/iohandler.c @@ -24,9 +24,9 @@ #include "config-host.h" #include "qemu-common.h" -#include "qemu-char.h" -#include "qemu-queue.h" -#include "main-loop.h" +#include "qemu/queue.h" +#include "block/aio.h" +#include "qemu/main-loop.h" #ifndef _WIN32 #include @@ -39,6 +39,7 @@ typedef struct IOHandlerRecord { void *opaque; QLIST_ENTRY(IOHandlerRecord) next; int fd; + int pollfds_idx; bool deleted; } IOHandlerRecord; @@ -56,6 +57,8 @@ int qemu_set_fd_handler2(int fd, { IOHandlerRecord *ioh; + assert(fd >= 0); + if (!fd_read && !fd_write) { QLIST_FOREACH(ioh, &io_handlers, next) { if (ioh->fd == fd) { @@ -76,6 +79,7 @@ int qemu_set_fd_handler2(int fd, ioh->fd_read = fd_read; ioh->fd_write = fd_write; ioh->opaque = opaque; + ioh->pollfds_idx = -1; ioh->deleted = 0; qemu_notify_event(); } @@ -90,38 +94,56 @@ int qemu_set_fd_handler(int fd, return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque); } -void qemu_iohandler_fill(int *pnfds, fd_set *readfds, fd_set *writefds, fd_set *xfds) +void qemu_iohandler_fill(GArray *pollfds) { IOHandlerRecord *ioh; QLIST_FOREACH(ioh, &io_handlers, next) { + int events = 0; + if (ioh->deleted) continue; if (ioh->fd_read && (!ioh->fd_read_poll || ioh->fd_read_poll(ioh->opaque) != 0)) { - FD_SET(ioh->fd, readfds); - if (ioh->fd > *pnfds) - *pnfds = ioh->fd; + events |= G_IO_IN | G_IO_HUP | G_IO_ERR; } if (ioh->fd_write) { - FD_SET(ioh->fd, writefds); - if (ioh->fd > *pnfds) - *pnfds = ioh->fd; + events |= G_IO_OUT | G_IO_ERR; + } + if (events) { + GPollFD pfd = { + .fd = ioh->fd, + .events = events, + }; + ioh->pollfds_idx = pollfds->len; + g_array_append_val(pollfds, pfd); + } else { + ioh->pollfds_idx = -1; } } } -void qemu_iohandler_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds, int ret) +void qemu_iohandler_poll(GArray *pollfds, int ret) { if (ret > 0) { IOHandlerRecord *pioh, *ioh; QLIST_FOREACH_SAFE(ioh, &io_handlers, next, pioh) { - if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, readfds)) { + int revents = 0; + + if (!ioh->deleted && ioh->pollfds_idx != -1) { + GPollFD *pfd = &g_array_index(pollfds, GPollFD, + ioh->pollfds_idx); + revents = pfd->revents; + } + + if (!ioh->deleted && ioh->fd_read && + (revents & (G_IO_IN | G_IO_HUP | G_IO_ERR))) { ioh->fd_read(ioh->opaque); } - if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, writefds)) { + if (!ioh->deleted && ioh->fd_write && + (revents & (G_IO_OUT | G_IO_ERR))) { ioh->fd_write(ioh->opaque); }