Instead of open-coded g_unix_set_fd_nonblocking() calls, use QEMU wrapper qemu_set_blocking().
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@yandex-team.ru> --- chardev/char-fd.c | 4 ++-- chardev/char-pty.c | 3 +-- chardev/char-serial.c | 3 +-- chardev/char-stdio.c | 3 +-- hw/input/virtio-input-host.c | 3 +-- hw/misc/ivshmem-flat.c | 3 ++- hw/misc/ivshmem-pci.c | 7 ++++++- hw/virtio/vhost-vsock.c | 8 ++------ io/channel-command.c | 9 ++++++--- io/channel-file.c | 3 +-- net/tap-bsd.c | 12 ++++++++++-- net/tap-linux.c | 7 ++++++- net/tap-solaris.c | 7 ++++++- net/tap.c | 21 ++++++--------------- qga/commands-posix.c | 3 +-- tests/qtest/fuzz/virtio_net_fuzz.c | 2 +- tests/qtest/vhost-user-test.c | 3 +-- tests/unit/test-iov.c | 5 +++-- ui/input-linux.c | 3 +-- util/event_notifier-posix.c | 4 ++-- util/main-loop.c | 5 ++++- 21 files changed, 64 insertions(+), 54 deletions(-) diff --git a/chardev/char-fd.c b/chardev/char-fd.c index 6f03adf872..739dc68c36 100644 --- a/chardev/char-fd.c +++ b/chardev/char-fd.c @@ -212,8 +212,8 @@ void qemu_chr_open_fd(Chardev *chr, FDChardev *s = FD_CHARDEV(chr); g_autofree char *name = NULL; - if (fd_out >= 0 && !g_unix_set_fd_nonblocking(fd_out, true, NULL)) { - assert(!"Failed to set FD nonblocking"); + if (fd_out >= 0) { + qemu_set_blocking(fd_out, false, &error_abort); } if (fd_out == fd_in && fd_in >= 0) { diff --git a/chardev/char-pty.c b/chardev/char-pty.c index 674e9b3f14..fe6bfb043d 100644 --- a/chardev/char-pty.c +++ b/chardev/char-pty.c @@ -349,8 +349,7 @@ static void char_pty_open(Chardev *chr, } close(slave_fd); - if (!g_unix_set_fd_nonblocking(master_fd, true, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(master_fd, false, errp)) { return; } diff --git a/chardev/char-serial.c b/chardev/char-serial.c index 0a68b4b4e0..1ff31dcde3 100644 --- a/chardev/char-serial.c +++ b/chardev/char-serial.c @@ -271,8 +271,7 @@ static void qmp_chardev_open_serial(Chardev *chr, if (fd < 0) { return; } - if (!g_unix_set_fd_nonblocking(fd, true, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(fd, false, errp)) { return; } tty_serial_init(fd, 115200, 'N', 8, 1); diff --git a/chardev/char-stdio.c b/chardev/char-stdio.c index 48db8d2f30..193727e807 100644 --- a/chardev/char-stdio.c +++ b/chardev/char-stdio.c @@ -107,8 +107,7 @@ static void qemu_chr_open_stdio(Chardev *chr, old_fd0_flags = fcntl(0, F_GETFL); old_fd1_flags = fcntl(1, F_GETFL); tcgetattr(0, &oldtty); - if (!g_unix_set_fd_nonblocking(0, true, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(0, false, errp)) { return; } atexit(term_exit); diff --git a/hw/input/virtio-input-host.c b/hw/input/virtio-input-host.c index bbfee9d3b9..9f62532559 100644 --- a/hw/input/virtio-input-host.c +++ b/hw/input/virtio-input-host.c @@ -114,8 +114,7 @@ static void virtio_input_host_realize(DeviceState *dev, Error **errp) error_setg_file_open(errp, errno, vih->evdev); return; } - if (!g_unix_set_fd_nonblocking(vih->fd, true, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(vih->fd, false, errp)) { goto err_close; } diff --git a/hw/misc/ivshmem-flat.c b/hw/misc/ivshmem-flat.c index fe4be6be17..89495f6a11 100644 --- a/hw/misc/ivshmem-flat.c +++ b/hw/misc/ivshmem-flat.c @@ -154,7 +154,8 @@ static void ivshmem_flat_add_vector(IvshmemFTState *s, IvshmemPeer *peer, * peer. */ peer->vector[peer->vector_counter].id = peer->vector_counter; - g_unix_set_fd_nonblocking(vector_fd, true, NULL); + /* WARNING: qemu_socket_set_nonblock() return code ignored */ + qemu_set_blocking(vector_fd, false, NULL); event_notifier_init_fd(&peer->vector[peer->vector_counter].event_notifier, vector_fd); diff --git a/hw/misc/ivshmem-pci.c b/hw/misc/ivshmem-pci.c index d47ae739d6..2748db9286 100644 --- a/hw/misc/ivshmem-pci.c +++ b/hw/misc/ivshmem-pci.c @@ -540,7 +540,12 @@ static void process_msg_connect(IVShmemState *s, uint16_t posn, int fd, IVSHMEM_DPRINTF("eventfds[%d][%d] = %d\n", posn, vector, fd); event_notifier_init_fd(&peer->eventfds[vector], fd); - g_unix_set_fd_nonblocking(fd, true, NULL); /* msix/irqfd poll non block */ + + /* msix/irqfd poll non block */ + if (!qemu_set_blocking(fd, false, errp)) { + close(fd); + return; + } if (posn == s->vm_id) { setup_interrupt(s, vector, errp); diff --git a/hw/virtio/vhost-vsock.c b/hw/virtio/vhost-vsock.c index 6e4088831f..107d88babe 100644 --- a/hw/virtio/vhost-vsock.c +++ b/hw/virtio/vhost-vsock.c @@ -147,9 +147,7 @@ static void vhost_vsock_device_realize(DeviceState *dev, Error **errp) return; } - if (!g_unix_set_fd_nonblocking(vhostfd, true, NULL)) { - error_setg_errno(errp, errno, - "vhost-vsock: unable to set non-blocking mode"); + if (!qemu_set_blocking(vhostfd, false, errp)) { return; } } else { @@ -160,9 +158,7 @@ static void vhost_vsock_device_realize(DeviceState *dev, Error **errp) return; } - if (!g_unix_set_fd_nonblocking(vhostfd, true, NULL)) { - error_setg_errno(errp, errno, - "Failed to set FD nonblocking"); + if (!qemu_set_blocking(vhostfd, false, errp)) { return; } } diff --git a/io/channel-command.c b/io/channel-command.c index 8966dd3a2b..8ae9a026b3 100644 --- a/io/channel-command.c +++ b/io/channel-command.c @@ -277,9 +277,12 @@ static int qio_channel_command_set_blocking(QIOChannel *ioc, cioc->blocking = enabled; #else - if ((cioc->writefd >= 0 && !g_unix_set_fd_nonblocking(cioc->writefd, !enabled, NULL)) || - (cioc->readfd >= 0 && !g_unix_set_fd_nonblocking(cioc->readfd, !enabled, NULL))) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (cioc->writefd >= 0 && + !qemu_set_blocking(cioc->writefd, enabled, errp)) { + return -1; + } + if (cioc->readfd >= 0 && + !qemu_set_blocking(cioc->readfd, enabled, errp)) { return -1; } #endif diff --git a/io/channel-file.c b/io/channel-file.c index ca3f180cc2..5cef75a67c 100644 --- a/io/channel-file.c +++ b/io/channel-file.c @@ -223,8 +223,7 @@ static int qio_channel_file_set_blocking(QIOChannel *ioc, #else QIOChannelFile *fioc = QIO_CHANNEL_FILE(ioc); - if (!g_unix_set_fd_nonblocking(fioc->fd, !enabled, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(fioc->fd, enabled, errp)) { return -1; } return 0; diff --git a/net/tap-bsd.c b/net/tap-bsd.c index b4c84441ba..2e444e59b5 100644 --- a/net/tap-bsd.c +++ b/net/tap-bsd.c @@ -98,7 +98,12 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, return -1; } } - g_unix_set_fd_nonblocking(fd, true, NULL); + + if (!qemu_set_blocking(fd, false, errp) { + close(fd); + return -1; + } + return fd; } @@ -189,7 +194,10 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, goto error; } - g_unix_set_fd_nonblocking(fd, true, NULL); + if (!qemu_set_blocking(fd, false, errp) { + goto error; + } + return fd; error: diff --git a/net/tap-linux.c b/net/tap-linux.c index 22ec2f45d2..981ef838fb 100644 --- a/net/tap-linux.c +++ b/net/tap-linux.c @@ -124,7 +124,12 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, return -1; } pstrcpy(ifname, ifname_size, ifr.ifr_name); - g_unix_set_fd_nonblocking(fd, true, NULL); + + if (!qemu_set_blocking(fd, false, NULL)) { + close(fd); + return -1; + } + return fd; } diff --git a/net/tap-solaris.c b/net/tap-solaris.c index 51b7830bef..02709590c1 100644 --- a/net/tap-solaris.c +++ b/net/tap-solaris.c @@ -198,7 +198,12 @@ int tap_open(char *ifname, int ifname_size, int *vnet_hdr, return -1; } } - g_unix_set_fd_nonblocking(fd, true, NULL); + + if (!qemu_set_blocking(fd, false NULL)) { + close(fd); + return -1; + } + return fd; } diff --git a/net/tap.c b/net/tap.c index f7df702f97..f37133e301 100644 --- a/net/tap.c +++ b/net/tap.c @@ -627,8 +627,7 @@ int net_init_bridge(const Netdev *netdev, const char *name, return -1; } - if (!g_unix_set_fd_nonblocking(fd, true, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(fd, false, errp)) { return -1; } vnet_hdr = tap_probe_vnet_hdr(fd, errp); @@ -729,9 +728,7 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer, error_propagate(errp, err); goto failed; } - if (!g_unix_set_fd_nonblocking(vhostfd, true, NULL)) { - error_setg_errno(errp, errno, "%s: Can't use file descriptor %d", - name, fd); + if (!qemu_set_blocking(vhostfd, false, errp)) { goto failed; } } else { @@ -741,8 +738,7 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer, "tap: open vhost char device failed"); goto failed; } - if (!g_unix_set_fd_nonblocking(vhostfd, true, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(vhostfd, false, errp)) { goto failed; } } @@ -839,9 +835,7 @@ int net_init_tap(const Netdev *netdev, const char *name, return -1; } - if (!g_unix_set_fd_nonblocking(fd, true, NULL)) { - error_setg_errno(errp, errno, "%s: Can't use file descriptor %d", - name, fd); + if (!qemu_set_blocking(fd, false, errp)) { close(fd); return -1; } @@ -895,10 +889,8 @@ int net_init_tap(const Netdev *netdev, const char *name, goto free_fail; } - if (!g_unix_set_fd_nonblocking(fd, true, NULL)) { + if (!qemu_set_blocking(fd, false, errp)) { ret = -1; - error_setg_errno(errp, errno, "%s: Can't use file descriptor %d", - name, fd); goto free_fail; } @@ -951,8 +943,7 @@ free_fail: return -1; } - if (!g_unix_set_fd_nonblocking(fd, true, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(fd, false, errp)) { return -1; } vnet_hdr = tap_probe_vnet_hdr(fd, errp); diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 12bc086d79..5070f27d75 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -503,9 +503,8 @@ int64_t qmp_guest_file_open(const char *path, const char *mode, /* set fd non-blocking to avoid common use cases (like reading from a * named pipe) from hanging the agent */ - if (!g_unix_set_fd_nonblocking(fileno(fh), true, NULL)) { + if (!qemu_set_blocking(fileno(fh), false, errp)) { fclose(fh); - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); return -1; } diff --git a/tests/qtest/fuzz/virtio_net_fuzz.c b/tests/qtest/fuzz/virtio_net_fuzz.c index e239875e3b..e9b13d3e4f 100644 --- a/tests/qtest/fuzz/virtio_net_fuzz.c +++ b/tests/qtest/fuzz/virtio_net_fuzz.c @@ -132,7 +132,7 @@ static void *virtio_net_test_setup_socket(GString *cmd_line, void *arg) { int ret = socketpair(PF_UNIX, SOCK_STREAM, 0, sockfds); g_assert_cmpint(ret, !=, -1); - g_unix_set_fd_nonblocking(sockfds[0], true, NULL); + qemu_set_blocking(sockfds[0], false, &error_abort); sockfds_initialized = true; g_string_append_printf(cmd_line, " -netdev socket,fd=%d,id=hs0 ", sockfds[1]); diff --git a/tests/qtest/vhost-user-test.c b/tests/qtest/vhost-user-test.c index 56472ca709..e39d6e7787 100644 --- a/tests/qtest/vhost-user-test.c +++ b/tests/qtest/vhost-user-test.c @@ -471,8 +471,7 @@ static void chr_read(void *opaque, const uint8_t *buf, int size) * The receive function forces it to be blocking, * so revert it back to non-blocking. */ - g_unix_set_fd_nonblocking(fd, true, &err); - g_assert_no_error(err); + qemu_set_blocking(fd, false, &error_abort); break; case VHOST_USER_SET_LOG_BASE: diff --git a/tests/unit/test-iov.c b/tests/unit/test-iov.c index 75bc3be005..63e2b1583c 100644 --- a/tests/unit/test-iov.c +++ b/tests/unit/test-iov.c @@ -1,4 +1,5 @@ #include "qemu/osdep.h" +#include "qapi/error.h" #include "qemu/iov.h" #include "qemu/sockets.h" @@ -186,7 +187,7 @@ static void test_io(void) close(sv[0]); FD_SET(sv[1], &fds); - g_unix_set_fd_nonblocking(sv[1], true, NULL); + qemu_set_blocking(sv[1], false, &error_abort); r = g_test_rand_int_range(sz / 2, sz); setsockopt(sv[1], SOL_SOCKET, SO_SNDBUF, &r, sizeof(r)); @@ -222,7 +223,7 @@ static void test_io(void) close(sv[1]); FD_SET(sv[0], &fds); - g_unix_set_fd_nonblocking(sv[0], true, NULL); + qemu_set_blocking(sv[0], false, &error_abort); r = g_test_rand_int_range(sz / 2, sz); setsockopt(sv[0], SOL_SOCKET, SO_RCVBUF, &r, sizeof(r)); usleep(500000); diff --git a/ui/input-linux.c b/ui/input-linux.c index 92e1a1aa64..44d0c15a9b 100644 --- a/ui/input-linux.c +++ b/ui/input-linux.c @@ -316,8 +316,7 @@ static void input_linux_complete(UserCreatable *uc, Error **errp) error_setg_file_open(errp, errno, il->evdev); return; } - if (!g_unix_set_fd_nonblocking(il->fd, true, NULL)) { - error_setg_errno(errp, errno, "Failed to set FD nonblocking"); + if (!qemu_set_blocking(il->fd, false, errp)) { return; } diff --git a/util/event_notifier-posix.c b/util/event_notifier-posix.c index 76420c5b56..9952de63dd 100644 --- a/util/event_notifier-posix.c +++ b/util/event_notifier-posix.c @@ -52,11 +52,11 @@ int event_notifier_init(EventNotifier *e, int active) if (!g_unix_open_pipe(fds, FD_CLOEXEC, NULL)) { return -errno; } - if (!g_unix_set_fd_nonblocking(fds[0], true, NULL)) { + if (!qemu_set_blocking(fds[0], false, NULL)) { ret = -errno; goto fail; } - if (!g_unix_set_fd_nonblocking(fds[1], true, NULL)) { + if (!qemu_set_blocking(fds[1], false, NULL)) { ret = -errno; goto fail; } diff --git a/util/main-loop.c b/util/main-loop.c index 51aeb2432e..b8ddda8f5e 100644 --- a/util/main-loop.c +++ b/util/main-loop.c @@ -114,7 +114,10 @@ static int qemu_signal_init(Error **errp) return -errno; } - g_unix_set_fd_nonblocking(sigfd, true, NULL); + if (!qemu_set_blocking(sigfd, false, errp)) { + close(sigfd); + return -EINVAL; + } qemu_set_fd_handler(sigfd, sigfd_handler, NULL, (void *)(intptr_t)sigfd); -- 2.48.1