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authorStefan Hajnoczi <stefanha@redhat.com>2013-02-20 11:28:30 +0100
committerAnthony Liguori <aliguori@us.ibm.com>2013-02-21 16:17:31 -0600
commit9cbaacf999b01b27dc3a22502705178057af66de (patch)
tree4eb9fd793791b5c4a39eff0bf19bde26912dc66b /main-loop.c
parenta3e4b4a8091cc4fcf7cb619570c72c54c2d6a6e9 (diff)
downloadqemu-arm-9cbaacf999b01b27dc3a22502705178057af66de.tar.gz
main-loop: drop rfds/wfds/xfds for good
Now that all *_fill() and *_poll() functions use GPollFD we no longer need rfds/wfds/xfds or pollfds_from_select()/pollfds_to_select(). >From now on everything uses GPollFD. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-id: 1361356113-11049-8-git-send-email-stefanha@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'main-loop.c')
-rw-r--r--main-loop.c77
1 files changed, 2 insertions, 75 deletions
diff --git a/main-loop.c b/main-loop.c
index 800868a339..8c9b58c14c 100644
--- a/main-loop.c
+++ b/main-loop.c
@@ -143,66 +143,8 @@ int qemu_init_main_loop(void)
return 0;
}
-static fd_set rfds, wfds, xfds;
-static int nfds;
static int max_priority;
-/* Load rfds/wfds/xfds into gpollfds. Will be removed a few commits later. */
-static void gpollfds_from_select(void)
-{
- int fd;
- for (fd = 0; fd <= nfds; fd++) {
- int events = 0;
- if (FD_ISSET(fd, &rfds)) {
- events |= G_IO_IN | G_IO_HUP | G_IO_ERR;
- }
- if (FD_ISSET(fd, &wfds)) {
- events |= G_IO_OUT | G_IO_ERR;
- }
- if (FD_ISSET(fd, &xfds)) {
- events |= G_IO_PRI;
- }
- if (events) {
- GPollFD pfd = {
- .fd = fd,
- .events = events,
- };
- g_array_append_val(gpollfds, pfd);
- }
- }
-}
-
-/* Store gpollfds revents into rfds/wfds/xfds. Will be removed a few commits
- * later.
- */
-static void gpollfds_to_select(int ret)
-{
- int i;
-
- FD_ZERO(&rfds);
- FD_ZERO(&wfds);
- FD_ZERO(&xfds);
-
- if (ret <= 0) {
- return;
- }
-
- for (i = 0; i < gpollfds->len; i++) {
- int fd = g_array_index(gpollfds, GPollFD, i).fd;
- int revents = g_array_index(gpollfds, GPollFD, i).revents;
-
- if (revents & (G_IO_IN | G_IO_HUP | G_IO_ERR)) {
- FD_SET(fd, &rfds);
- }
- if (revents & (G_IO_OUT | G_IO_ERR)) {
- FD_SET(fd, &wfds);
- }
- if (revents & G_IO_PRI) {
- FD_SET(fd, &xfds);
- }
- }
-}
-
#ifndef _WIN32
static int glib_pollfds_idx;
static int glib_n_poll_fds;
@@ -251,15 +193,8 @@ static int os_host_main_loop_wait(uint32_t timeout)
qemu_mutex_unlock_iothread();
}
- /* We'll eventually drop fd_set completely. But for now we still have
- * *_fill() and *_poll() functions that use rfds/wfds/xfds.
- */
- gpollfds_from_select();
-
ret = g_poll((GPollFD *)gpollfds->data, gpollfds->len, timeout);
- gpollfds_to_select(ret);
-
if (timeout > 0) {
qemu_mutex_lock_iothread();
}
@@ -417,6 +352,8 @@ static int os_host_main_loop_wait(uint32_t timeout)
WaitObjects *w = &wait_objects;
gint poll_timeout;
static struct timeval tv0;
+ fd_set rfds, wfds, xfds;
+ int nfds;
/* XXX: need to suppress polling by better using win32 events */
ret = 0;
@@ -463,10 +400,6 @@ static int os_host_main_loop_wait(uint32_t timeout)
* improve socket latency.
*/
- /* This back-and-forth between GPollFDs and select(2) is temporary. We'll
- * drop it in a couple of patches, I promise :).
- */
- gpollfds_from_select();
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&xfds);
@@ -480,7 +413,6 @@ static int os_host_main_loop_wait(uint32_t timeout)
pollfds_poll(gpollfds, nfds, &rfds, &wfds, &xfds);
}
}
- gpollfds_to_select(select_ret);
return select_ret || g_poll_ret;
}
@@ -498,11 +430,6 @@ int main_loop_wait(int nonblocking)
/* poll any events */
g_array_set_size(gpollfds, 0); /* reset for new iteration */
/* XXX: separate device handlers from system ones */
- nfds = -1;
- FD_ZERO(&rfds);
- FD_ZERO(&wfds);
- FD_ZERO(&xfds);
-
#ifdef CONFIG_SLIRP
slirp_update_timeout(&timeout);
slirp_pollfds_fill(gpollfds);