auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 128 deletions

diff --git a/compatfd.c b/compatfd.c
deleted file mode 100644
index 46b0ae7..0000000
--- a/compatfd.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * signalfd/eventfd compatibility
- *
- * Copyright IBM, Corp. 2008
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu-common.h"
-#include "compatfd.h"
-
-#include <sys/syscall.h>
-#include <pthread.h>
-
-struct sigfd_compat_info
-{
-    sigset_t mask;
-    int fd;
-};
-
-static void *sigwait_compat(void *opaque)
-{
-    struct sigfd_compat_info *info = opaque;
-    int err;
-    sigset_t all;
-
-    sigfillset(&all);
-    sigprocmask(SIG_BLOCK, &all, NULL);
-
-    do {
-	siginfo_t siginfo;
-
-	err = sigwaitinfo(&info->mask, &siginfo);
-	if (err == -1 && errno == EINTR) {
-            err = 0;
-            continue;
-        }
-
-	if (err > 0) {
-	    char buffer[128];
-	    size_t offset = 0;
-
-	    memcpy(buffer, &err, sizeof(err));
-	    while (offset < sizeof(buffer)) {
-		ssize_t len;
-
-		len = write(info->fd, buffer + offset,
-			    sizeof(buffer) - offset);
-		if (len == -1 && errno == EINTR)
-		    continue;
-
-		if (len <= 0) {
-		    err = -1;
-		    break;
-		}
-
-		offset += len;
-	    }
-	}
-    } while (err >= 0);
-
-    return NULL;
-}
-
-static int qemu_signalfd_compat(const sigset_t *mask)
-{
-    pthread_attr_t attr;
-    pthread_t tid;
-    struct sigfd_compat_info *info;
-    int fds[2];
-
-    info = malloc(sizeof(*info));
-    if (info == NULL) {
-	errno = ENOMEM;
-	return -1;
-    }
-
-    if (pipe(fds) == -1) {
-	free(info);
-	return -1;
-    }
-
-    memcpy(&info->mask, mask, sizeof(*mask));
-    info->fd = fds[1];
-
-    pthread_attr_init(&attr);
-    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-
-    pthread_create(&tid, &attr, sigwait_compat, info);
-
-    pthread_attr_destroy(&attr);
-
-    return fds[0];
-}
-
-int qemu_signalfd(const sigset_t *mask)
-{
-#if defined(SYS_signalfd)
-    int ret;
-
-    ret = syscall(SYS_signalfd, -1, mask, _NSIG / 8);
-    if (!(ret == -1 && errno == ENOSYS))
-	return ret;
-#endif
-
-    return qemu_signalfd_compat(mask);
-}
-
-int qemu_eventfd(int *fds)
-{
-#if defined(SYS_eventfd)
-    int ret;
-
-    ret = syscall(SYS_eventfd, 0);
-    if (ret >= 0) {
-	fds[0] = fds[1] = ret;
-	return 0;
-    } else if (!(ret == -1 && errno == ENOSYS))
-	return ret;
-#endif
-
-    return pipe(fds);
-}