From baacf04799ace72a9c735dd9306a1ceaf305e7cf Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 20 Dec 2012 15:58:44 +0100
Subject: build: move libqemuutil.a components to util/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 compatfd.c | 138 -------------------------------------------------------------
 1 file changed, 138 deletions(-)
 delete mode 100644 compatfd.c

(limited to 'compatfd.c')

diff --git a/compatfd.c b/compatfd.c
deleted file mode 100644
index 9cf3f28..0000000
--- a/compatfd.c
+++ /dev/null
@@ -1,138 +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.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-#include "qemu-common.h"
-#include "qemu/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;
-    sigset_t all;
-
-    sigfillset(&all);
-    pthread_sigmask(SIG_BLOCK, &all, NULL);
-
-    while (1) {
-        int sig;
-        int err;
-
-        err = sigwait(&info->mask, &sig);
-        if (err != 0) {
-            if (errno == EINTR) {
-                continue;
-            } else {
-                return NULL;
-            }
-        } else {
-            struct qemu_signalfd_siginfo buffer;
-            size_t offset = 0;
-
-            memset(&buffer, 0, sizeof(buffer));
-            buffer.ssi_signo = sig;
-
-            while (offset < sizeof(buffer)) {
-                ssize_t len;
-
-                len = write(info->fd, (char *)&buffer + offset,
-                            sizeof(buffer) - offset);
-                if (len == -1 && errno == EINTR)
-                    continue;
-
-                if (len <= 0) {
-                    return NULL;
-                }
-
-                offset += len;
-            }
-        }
-    }
-}
-
-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;
-    }
-
-    qemu_set_cloexec(fds[0]);
-    qemu_set_cloexec(fds[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(CONFIG_SIGNALFD)
-    int ret;
-
-    ret = syscall(SYS_signalfd, -1, mask, _NSIG / 8);
-    if (ret != -1) {
-        qemu_set_cloexec(ret);
-        return ret;
-    }
-#endif
-
-    return qemu_signalfd_compat(mask);
-}
-
-bool qemu_signalfd_available(void)
-{
-#ifdef CONFIG_SIGNALFD
-    sigset_t mask;
-    int fd;
-    bool ok;
-    sigemptyset(&mask);
-    errno = 0;
-    fd = syscall(SYS_signalfd, -1, &mask, _NSIG / 8);
-    ok = (errno != ENOSYS);
-    if (fd >= 0) {
-        close(fd);
-    }
-    return ok;
-#else
-    return false;
-#endif
-}
-- 
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