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-rw-r--r--tools/virtiofsd/fuse_signals.c93
1 files changed, 0 insertions, 93 deletions
diff --git a/tools/virtiofsd/fuse_signals.c b/tools/virtiofsd/fuse_signals.c
deleted file mode 100644
index 1de46de1ce..0000000000
--- a/tools/virtiofsd/fuse_signals.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * FUSE: Filesystem in Userspace
- * Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
- *
- * Utility functions for setting signal handlers.
- *
- * This program can be distributed under the terms of the GNU LGPLv2.
- * See the file COPYING.LIB
- */
-
-#include "qemu/osdep.h"
-#include "fuse_i.h"
-#include "fuse_lowlevel.h"
-
-
-static struct fuse_session *fuse_instance;
-
-static void exit_handler(int sig)
-{
-    if (fuse_instance) {
-        fuse_session_exit(fuse_instance);
-        if (sig <= 0) {
-            fuse_log(FUSE_LOG_ERR, "assertion error: signal value <= 0\n");
-            abort();
-        }
-        fuse_instance->error = sig;
-    }
-}
-
-static void do_nothing(int sig)
-{
-    (void)sig;
-}
-
-static int set_one_signal_handler(int sig, void (*handler)(int), int remove)
-{
-    struct sigaction sa;
-    struct sigaction old_sa;
-
-    memset(&sa, 0, sizeof(struct sigaction));
-    sa.sa_handler = remove ? SIG_DFL : handler;
-    sigemptyset(&(sa.sa_mask));
-    sa.sa_flags = 0;
-
-    if (sigaction(sig, NULL, &old_sa) == -1) {
-        fuse_log(FUSE_LOG_ERR, "fuse: cannot get old signal handler: %s\n",
-                 strerror(errno));
-        return -1;
-    }
-
-    if (old_sa.sa_handler == (remove ? handler : SIG_DFL) &&
-        sigaction(sig, &sa, NULL) == -1) {
-        fuse_log(FUSE_LOG_ERR, "fuse: cannot set signal handler: %s\n",
-                 strerror(errno));
-        return -1;
-    }
-    return 0;
-}
-
-int fuse_set_signal_handlers(struct fuse_session *se)
-{
-    /*
-     * If we used SIG_IGN instead of the do_nothing function,
-     * then we would be unable to tell if we set SIG_IGN (and
-     * thus should reset to SIG_DFL in fuse_remove_signal_handlers)
-     * or if it was already set to SIG_IGN (and should be left
-     * untouched.
-     */
-    if (set_one_signal_handler(SIGHUP, exit_handler, 0) == -1 ||
-        set_one_signal_handler(SIGINT, exit_handler, 0) == -1 ||
-        set_one_signal_handler(SIGTERM, exit_handler, 0) == -1 ||
-        set_one_signal_handler(SIGPIPE, do_nothing, 0) == -1) {
-        return -1;
-    }
-
-    fuse_instance = se;
-    return 0;
-}
-
-void fuse_remove_signal_handlers(struct fuse_session *se)
-{
-    if (fuse_instance != se) {
-        fuse_log(FUSE_LOG_ERR,
-                 "fuse: fuse_remove_signal_handlers: unknown session\n");
-    } else {
-        fuse_instance = NULL;
-    }
-
-    set_one_signal_handler(SIGHUP, exit_handler, 1);
-    set_one_signal_handler(SIGINT, exit_handler, 1);
-    set_one_signal_handler(SIGTERM, exit_handler, 1);
-    set_one_signal_handler(SIGPIPE, do_nothing, 1);
-}