util: Remove unused functions

Delete the unused functions qemu_signalfd_available(),
qemu_send_full() and qemu_recv_full().

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

include/qemu-common.h

@@ -217,10 +217,6 @@ void *qemu_oom_check(void *ptr);
 
 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
     QEMU_WARN_UNUSED_RESULT;
-ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
-    QEMU_WARN_UNUSED_RESULT;
-ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
-    QEMU_WARN_UNUSED_RESULT;
 
 #ifndef _WIN32
 int qemu_pipe(int pipefd[2]);

include/qemu/compatfd.h

@@ -39,6 +39,5 @@ struct qemu_signalfd_siginfo {
 };
 
 int qemu_signalfd(const sigset_t *mask);
-bool qemu_signalfd_available(void);
 
 #endif

util/compatfd.c

@@ -108,22 +108,3 @@ int qemu_signalfd(const sigset_t *mask)
 
     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
-}

util/osdep.c

@@ -310,72 +310,6 @@ int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
     return ret;
 }
 
-/*
- * A variant of send(2) which handles partial write.
- *
- * Return the number of bytes transferred, which is only
- * smaller than `count' if there is an error.
- *
- * This function won't work with non-blocking fd's.
- * Any of the possibilities with non-bloking fd's is bad:
- *   - return a short write (then name is wrong)
- *   - busy wait adding (errno == EAGAIN) to the loop
- */
-ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
-{
-    ssize_t ret = 0;
-    ssize_t total = 0;
-
-    while (count) {
-        ret = send(fd, buf, count, flags);
-        if (ret < 0) {
-            if (errno == EINTR) {
-                continue;
-            }
-            break;
-        }
-
-        count -= ret;
-        buf += ret;
-        total += ret;
-    }
-
-    return total;
-}
-
-/*
- * A variant of recv(2) which handles partial write.
- *
- * Return the number of bytes transferred, which is only
- * smaller than `count' if there is an error.
- *
- * This function won't work with non-blocking fd's.
- * Any of the possibilities with non-bloking fd's is bad:
- *   - return a short write (then name is wrong)
- *   - busy wait adding (errno == EAGAIN) to the loop
- */
-ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
-{
-    ssize_t ret = 0;
-    ssize_t total = 0;
-
-    while (count) {
-        ret = qemu_recv(fd, buf, count, flags);
-        if (ret <= 0) {
-            if (ret < 0 && errno == EINTR) {
-                continue;
-            }
-            break;
-        }
-
-        count -= ret;
-        buf += ret;
-        total += ret;
-    }
-
-    return total;
-}
-
 void qemu_set_version(const char *version)
 {
     qemu_version = version;