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aio: clean up now-unused functions

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Some cleanups can now be made, now that the main loop does not anymore need
hooks into the bottom half code.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2012-09-24 15:11:48 +02:00
parent 4c8d0d2767
commit 22bfa75eaf
4 changed files with 7 additions and 49 deletions
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23
async.c
View File

@ -117,16 +117,20 @@ void qemu_bh_delete(QEMUBH *bh)
bh->deleted = 1;
}
void aio_bh_update_timeout(AioContext *ctx, uint32_t *timeout)
static gboolean
aio_ctx_prepare(GSource *source, gint *timeout)
{
AioContext *ctx = (AioContext *) source;
QEMUBH *bh;
bool scheduled = false;
for (bh = ctx->first_bh; bh; bh = bh->next) {
if (!bh->deleted && bh->scheduled) {
scheduled = true;
if (bh->idle) {
/* idle bottom halves will be polled at least
* every 10ms */
*timeout = MIN(10, *timeout);
*timeout = 10;
} else {
/* non-idle bottom halves will be executed
* immediately */
@ -135,21 +139,8 @@ void aio_bh_update_timeout(AioContext *ctx, uint32_t *timeout)
}
}
}
}
static gboolean
aio_ctx_prepare(GSource *source, gint *timeout)
{
AioContext *ctx = (AioContext *) source;
uint32_t wait = -1;
aio_bh_update_timeout(ctx, &wait);
if (wait != -1) {
*timeout = MIN(*timeout, wait);
return wait == 0;
}
return false;
return scheduled;
}
static gboolean

31
oslib-posix.c
View File

@ -61,9 +61,6 @@ static int running_on_valgrind = -1;
#ifdef CONFIG_LINUX
#include <sys/syscall.h>
#endif
#ifdef CONFIG_EVENTFD
#include <sys/eventfd.h>
#endif
int qemu_get_thread_id(void)
{
@ -183,34 +180,6 @@ int qemu_pipe(int pipefd[2])
return ret;
}
/*
* Creates an eventfd that looks like a pipe and has EFD_CLOEXEC set.
*/
int qemu_eventfd(int fds[2])
{
#ifdef CONFIG_EVENTFD
int ret;
ret = eventfd(0, 0);
if (ret >= 0) {
fds[0] = ret;
fds[1] = dup(ret);
if (fds[1] == -1) {
close(ret);
return -1;
}
qemu_set_cloexec(ret);
qemu_set_cloexec(fds[1]);
return 0;
}
if (errno != ENOSYS) {
return -1;
}
#endif
return qemu_pipe(fds);
}
int qemu_utimens(const char *path, const struct timespec *times)
{
struct timeval tv[2], tv_now;

1
qemu-aio.h
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@ -125,7 +125,6 @@ void aio_notify(AioContext *ctx);
* These are internal functions used by the QEMU main loop.
*/
int aio_bh_poll(AioContext *ctx);
void aio_bh_update_timeout(AioContext *ctx, uint32_t *timeout);
/**
* qemu_bh_schedule: Schedule a bottom half.

1
qemu-common.h
View File

@ -218,7 +218,6 @@ ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
QEMU_WARN_UNUSED_RESULT;
#ifndef _WIN32
int qemu_eventfd(int pipefd[2]);
int qemu_pipe(int pipefd[2]);
#endif