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-rw-r--r--console.c8
-rw-r--r--console.h2
-rw-r--r--hw/baum.c7
-rw-r--r--hw/baum.h2
-rw-r--r--hw/msmouse.c5
-rw-r--r--hw/msmouse.h2
-rw-r--r--qemu-char.c169
-rw-r--r--spice-qemu-char.c9
-rw-r--r--ui/qemu-spice.h2
9 files changed, 84 insertions, 122 deletions
diff --git a/console.c b/console.c
index 135394f6f..2c432e392 100644
--- a/console.c
+++ b/console.c
@@ -1510,7 +1510,7 @@ static void text_console_do_init(CharDriverState *chr, DisplayState *ds)
chr->init(chr);
}
-int text_console_init(QemuOpts *opts, CharDriverState **_chr)
+CharDriverState *text_console_init(QemuOpts *opts)
{
CharDriverState *chr;
TextConsole *s;
@@ -1542,7 +1542,7 @@ int text_console_init(QemuOpts *opts, CharDriverState **_chr)
if (!s) {
g_free(chr);
- return -EBUSY;
+ return NULL;
}
s->chr = chr;
@@ -1550,9 +1550,7 @@ int text_console_init(QemuOpts *opts, CharDriverState **_chr)
s->g_height = height;
chr->opaque = s;
chr->chr_set_echo = text_console_set_echo;
-
- *_chr = chr;
- return 0;
+ return chr;
}
void text_consoles_set_display(DisplayState *ds)
diff --git a/console.h b/console.h
index 6ba0d5ddf..c33ffe000 100644
--- a/console.h
+++ b/console.h
@@ -356,7 +356,7 @@ void vga_hw_text_update(console_ch_t *chardata);
int is_graphic_console(void);
int is_fixedsize_console(void);
-int text_console_init(QemuOpts *opts, CharDriverState **_chr);
+CharDriverState *text_console_init(QemuOpts *opts);
void text_consoles_set_display(DisplayState *ds);
void console_select(unsigned int index);
void console_color_init(DisplayState *ds);
diff --git a/hw/baum.c b/hw/baum.c
index 86d780a61..3e94f84e5 100644
--- a/hw/baum.c
+++ b/hw/baum.c
@@ -562,7 +562,7 @@ static void baum_close(struct CharDriverState *chr)
g_free(baum);
}
-int chr_baum_init(QemuOpts *opts, CharDriverState **_chr)
+CharDriverState *chr_baum_init(QemuOpts *opts)
{
BaumDriverState *baum;
CharDriverState *chr;
@@ -614,8 +614,7 @@ int chr_baum_init(QemuOpts *opts, CharDriverState **_chr)
qemu_chr_generic_open(chr);
- *_chr = chr;
- return 0;
+ return chr;
fail:
qemu_free_timer(baum->cellCount_timer);
@@ -624,5 +623,5 @@ fail_handle:
g_free(handle);
g_free(chr);
g_free(baum);
- return -EIO;
+ return NULL;
}
diff --git a/hw/baum.h b/hw/baum.h
index 3f28cc339..8af710fa2 100644
--- a/hw/baum.h
+++ b/hw/baum.h
@@ -23,4 +23,4 @@
*/
/* char device */
-int chr_baum_init(QemuOpts *opts, CharDriverState **_chr);
+CharDriverState *chr_baum_init(QemuOpts *opts);
diff --git a/hw/msmouse.c b/hw/msmouse.c
index c3b57ea31..9c492a463 100644
--- a/hw/msmouse.c
+++ b/hw/msmouse.c
@@ -64,7 +64,7 @@ static void msmouse_chr_close (struct CharDriverState *chr)
g_free (chr);
}
-int qemu_chr_open_msmouse(QemuOpts *opts, CharDriverState **_chr)
+CharDriverState *qemu_chr_open_msmouse(QemuOpts *opts)
{
CharDriverState *chr;
@@ -74,6 +74,5 @@ int qemu_chr_open_msmouse(QemuOpts *opts, CharDriverState **_chr)
qemu_add_mouse_event_handler(msmouse_event, chr, 0, "QEMU Microsoft Mouse");
- *_chr = chr;
- return 0;
+ return chr;
}
diff --git a/hw/msmouse.h b/hw/msmouse.h
index 8b853b35b..456cb2142 100644
--- a/hw/msmouse.h
+++ b/hw/msmouse.h
@@ -1,2 +1,2 @@
/* msmouse.c */
-int qemu_chr_open_msmouse(QemuOpts *opts, CharDriverState **_chr);
+CharDriverState *qemu_chr_open_msmouse(QemuOpts *opts);
diff --git a/qemu-char.c b/qemu-char.c
index b1d80dd24..1e882cfee 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -218,15 +218,13 @@ static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
return len;
}
-static int qemu_chr_open_null(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_null(QemuOpts *opts)
{
CharDriverState *chr;
chr = g_malloc0(sizeof(CharDriverState));
chr->chr_write = null_chr_write;
-
- *_chr= chr;
- return 0;
+ return chr;
}
/* MUX driver for serial I/O splitting */
@@ -636,21 +634,18 @@ static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
return chr;
}
-static int qemu_chr_open_file_out(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
{
int fd_out;
TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
- if (fd_out < 0) {
- return -errno;
- }
-
- *_chr = qemu_chr_open_fd(-1, fd_out);
- return 0;
+ if (fd_out < 0)
+ return NULL;
+ return qemu_chr_open_fd(-1, fd_out);
}
-static int qemu_chr_open_pipe(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
{
int fd_in, fd_out;
char filename_in[256], filename_out[256];
@@ -658,7 +653,7 @@ static int qemu_chr_open_pipe(QemuOpts *opts, CharDriverState **_chr)
if (filename == NULL) {
fprintf(stderr, "chardev: pipe: no filename given\n");
- return -EINVAL;
+ return NULL;
}
snprintf(filename_in, 256, "%s.in", filename);
@@ -670,14 +665,11 @@ static int qemu_chr_open_pipe(QemuOpts *opts, CharDriverState **_chr)
close(fd_in);
if (fd_out >= 0)
close(fd_out);
- TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
- if (fd_in < 0) {
- return -errno;
- }
+ TFR(fd_in = fd_out = open(filename, O_RDWR | O_BINARY));
+ if (fd_in < 0)
+ return NULL;
}
-
- *_chr = qemu_chr_open_fd(fd_in, fd_out);
- return 0;
+ return qemu_chr_open_fd(fd_in, fd_out);
}
@@ -768,14 +760,12 @@ static void qemu_chr_close_stdio(struct CharDriverState *chr)
fd_chr_close(chr);
}
-static int qemu_chr_open_stdio(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_stdio(QemuOpts *opts)
{
CharDriverState *chr;
- if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
- return -EBUSY;
- }
-
+ if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
+ return NULL;
if (stdio_nb_clients == 0) {
old_fd0_flags = fcntl(0, F_GETFL);
tcgetattr (0, &oldtty);
@@ -792,8 +782,7 @@ static int qemu_chr_open_stdio(QemuOpts *opts, CharDriverState **_chr)
display_type != DT_NOGRAPHIC);
qemu_chr_fe_set_echo(chr, false);
- *_chr = chr;
- return 0;
+ return chr;
}
#ifdef __sun__
@@ -980,7 +969,7 @@ static void pty_chr_close(struct CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static int qemu_chr_open_pty(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
{
CharDriverState *chr;
PtyCharDriver *s;
@@ -995,7 +984,7 @@ static int qemu_chr_open_pty(QemuOpts *opts, CharDriverState **_chr)
#endif
if (openpty(&master_fd, &slave_fd, pty_name, NULL, NULL) < 0) {
- return -errno;
+ return NULL;
}
/* Set raw attributes on the pty. */
@@ -1021,8 +1010,7 @@ static int qemu_chr_open_pty(QemuOpts *opts, CharDriverState **_chr)
s->fd = master_fd;
s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
- *_chr = chr;
- return 0;
+ return chr;
}
static void tty_serial_init(int fd, int speed,
@@ -1223,28 +1211,30 @@ static void qemu_chr_close_tty(CharDriverState *chr)
}
}
-static int qemu_chr_open_tty(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
int fd;
- TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
+ TFR(fd = open(filename, O_RDWR | O_NONBLOCK));
if (fd < 0) {
- return -errno;
+ return NULL;
}
tty_serial_init(fd, 115200, 'N', 8, 1);
chr = qemu_chr_open_fd(fd, fd);
+ if (!chr) {
+ close(fd);
+ return NULL;
+ }
chr->chr_ioctl = tty_serial_ioctl;
chr->chr_close = qemu_chr_close_tty;
-
- *_chr = chr;
- return 0;
+ return chr;
}
#else /* ! __linux__ && ! __sun__ */
-static int qemu_chr_open_pty(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
{
- return -ENOTSUP;
+ return NULL;
}
#endif /* __linux__ || __sun__ */
@@ -1358,7 +1348,7 @@ static void pp_close(CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static int qemu_chr_open_pp(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
@@ -1366,13 +1356,12 @@ static int qemu_chr_open_pp(QemuOpts *opts, CharDriverState **_chr)
int fd;
TFR(fd = open(filename, O_RDWR));
- if (fd < 0) {
- return -errno;
- }
+ if (fd < 0)
+ return NULL;
if (ioctl(fd, PPCLAIM) < 0) {
close(fd);
- return -errno;
+ return NULL;
}
drv = g_malloc0(sizeof(ParallelCharDriver));
@@ -1387,8 +1376,7 @@ static int qemu_chr_open_pp(QemuOpts *opts, CharDriverState **_chr)
qemu_chr_generic_open(chr);
- *_chr = chr;
- return 0;
+ return chr;
}
#endif /* __linux__ */
@@ -1430,24 +1418,21 @@ static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
return 0;
}
-static int qemu_chr_open_pp(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
int fd;
- fd = qemu_open(filename, O_RDWR);
- if (fd < 0) {
- return -errno;
- }
+ fd = open(filename, O_RDWR);
+ if (fd < 0)
+ return NULL;
chr = g_malloc0(sizeof(CharDriverState));
chr->opaque = (void *)(intptr_t)fd;
chr->chr_write = null_chr_write;
chr->chr_ioctl = pp_ioctl;
-
- *_chr = chr;
- return 0;
+ return chr;
}
#endif
@@ -1663,7 +1648,7 @@ static int win_chr_poll(void *opaque)
return 0;
}
-static int qemu_chr_open_win(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
@@ -1678,12 +1663,10 @@ static int qemu_chr_open_win(QemuOpts *opts, CharDriverState **_chr)
if (win_chr_init(chr, filename) < 0) {
g_free(s);
g_free(chr);
- return -EIO;
+ return NULL;
}
qemu_chr_generic_open(chr);
-
- *_chr = chr;
- return 0;
+ return chr;
}
static int win_chr_pipe_poll(void *opaque)
@@ -1765,7 +1748,7 @@ static int win_chr_pipe_init(CharDriverState *chr, const char *filename)
}
-static int qemu_chr_open_win_pipe(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_win_pipe(QemuOpts *opts)
{
const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
@@ -1780,15 +1763,13 @@ static int qemu_chr_open_win_pipe(QemuOpts *opts, CharDriverState **_chr)
if (win_chr_pipe_init(chr, filename) < 0) {
g_free(s);
g_free(chr);
- return -EIO;
+ return NULL;
}
qemu_chr_generic_open(chr);
-
- *_chr = chr;
- return 0;
+ return chr;
}
-static int qemu_chr_open_win_file(HANDLE fd_out, CharDriverState **pchr)
+static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out)
{
CharDriverState *chr;
WinCharState *s;
@@ -1799,27 +1780,25 @@ static int qemu_chr_open_win_file(HANDLE fd_out, CharDriverState **pchr)
chr->opaque = s;
chr->chr_write = win_chr_write;
qemu_chr_generic_open(chr);
- *pchr = chr;
- return 0;
+ return chr;
}
-static int qemu_chr_open_win_con(QemuOpts *opts, CharDriverState **chr)
+static CharDriverState *qemu_chr_open_win_con(QemuOpts *opts)
{
- return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE), chr);
+ return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE));
}
-static int qemu_chr_open_win_file_out(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_win_file_out(QemuOpts *opts)
{
const char *file_out = qemu_opt_get(opts, "path");
HANDLE fd_out;
fd_out = CreateFile(file_out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
- if (fd_out == INVALID_HANDLE_VALUE) {
- return -EIO;
- }
+ if (fd_out == INVALID_HANDLE_VALUE)
+ return NULL;
- return qemu_chr_open_win_file(fd_out, _chr);
+ return qemu_chr_open_win_file(fd_out);
}
static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len)
@@ -1960,7 +1939,7 @@ static void win_stdio_close(CharDriverState *chr)
stdio_nb_clients--;
}
-static int qemu_chr_open_win_stdio(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_win_stdio(QemuOpts *opts)
{
CharDriverState *chr;
WinStdioCharState *stdio;
@@ -1969,7 +1948,7 @@ static int qemu_chr_open_win_stdio(QemuOpts *opts, CharDriverState **_chr)
if (stdio_nb_clients >= STDIO_MAX_CLIENTS
|| ((display_type != DT_NOGRAPHIC) && (stdio_nb_clients != 0))) {
- return -EIO;
+ return NULL;
}
chr = g_malloc0(sizeof(CharDriverState));
@@ -2028,9 +2007,7 @@ static int qemu_chr_open_win_stdio(QemuOpts *opts, CharDriverState **_chr)
chr->chr_set_echo = qemu_chr_set_echo_win_stdio;
qemu_chr_fe_set_echo(chr, false);
- *_chr = chr;
-
- return 0;
+ return chr;
}
#endif /* !_WIN32 */
@@ -2111,12 +2088,11 @@ static void udp_chr_close(CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static int qemu_chr_open_udp(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_udp(QemuOpts *opts)
{
CharDriverState *chr = NULL;
NetCharDriver *s = NULL;
int fd = -1;
- int ret;
chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(NetCharDriver));
@@ -2124,7 +2100,6 @@ static int qemu_chr_open_udp(QemuOpts *opts, CharDriverState **_chr)
fd = inet_dgram_opts(opts);
if (fd < 0) {
fprintf(stderr, "inet_dgram_opts failed\n");
- ret = -errno;
goto return_err;
}
@@ -2135,9 +2110,7 @@ static int qemu_chr_open_udp(QemuOpts *opts, CharDriverState **_chr)
chr->chr_write = udp_chr_write;
chr->chr_update_read_handler = udp_chr_update_read_handler;
chr->chr_close = udp_chr_close;
-
- *_chr = chr;
- return 0;
+ return chr;
return_err:
g_free(chr);
@@ -2145,7 +2118,7 @@ return_err:
if (fd >= 0) {
closesocket(fd);
}
- return ret;
+ return NULL;
}
/***********************************************************/
@@ -2436,7 +2409,7 @@ static void tcp_chr_close(CharDriverState *chr)
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static int qemu_chr_open_socket(QemuOpts *opts, CharDriverState **_chr)
+static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
{
CharDriverState *chr = NULL;
TCPCharDriver *s = NULL;
@@ -2446,7 +2419,6 @@ static int qemu_chr_open_socket(QemuOpts *opts, CharDriverState **_chr)
int do_nodelay;
int is_unix;
int is_telnet;
- int ret;
is_listen = qemu_opt_get_bool(opts, "server", 0);
is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
@@ -2472,10 +2444,8 @@ static int qemu_chr_open_socket(QemuOpts *opts, CharDriverState **_chr)
fd = inet_connect_opts(opts);
}
}
- if (fd < 0) {
- ret = -errno;
+ if (fd < 0)
goto fail;
- }
if (!is_waitconnect)
socket_set_nonblock(fd);
@@ -2528,16 +2498,14 @@ static int qemu_chr_open_socket(QemuOpts *opts, CharDriverState **_chr)
tcp_chr_accept(chr);
socket_set_nonblock(s->listen_fd);
}
-
- *_chr = chr;
- return 0;
+ return chr;
fail:
if (fd >= 0)
closesocket(fd);
g_free(s);
g_free(chr);
- return ret;
+ return NULL;
}
/***********************************************************/
@@ -2730,7 +2698,7 @@ fail:
static const struct {
const char *name;
- int (*open)(QemuOpts *opts, CharDriverState **chr);
+ CharDriverState *(*open)(QemuOpts *opts);
} backend_table[] = {
{ .name = "null", .open = qemu_chr_open_null },
{ .name = "socket", .open = qemu_chr_open_socket },
@@ -2771,7 +2739,6 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
{
CharDriverState *chr;
int i;
- int ret;
if (qemu_opts_id(opts) == NULL) {
fprintf(stderr, "chardev: no id specified\n");
@@ -2793,10 +2760,10 @@ CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
return NULL;
}
- ret = backend_table[i].open(opts, &chr);
- if (ret < 0) {
- fprintf(stderr, "chardev: opening backend \"%s\" failed: %s\n",
- qemu_opt_get(opts, "backend"), strerror(-ret));
+ chr = backend_table[i].open(opts);
+ if (!chr) {
+ fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
+ qemu_opt_get(opts, "backend"));
return NULL;
}
diff --git a/spice-qemu-char.c b/spice-qemu-char.c
index 7e8eaa9fd..1e735ffd0 100644
--- a/spice-qemu-char.c
+++ b/spice-qemu-char.c
@@ -188,7 +188,7 @@ static void print_allowed_subtypes(void)
fprintf(stderr, "\n");
}
-int qemu_chr_open_spice(QemuOpts *opts, CharDriverState **_chr)
+CharDriverState *qemu_chr_open_spice(QemuOpts *opts)
{
CharDriverState *chr;
SpiceCharDriver *s;
@@ -200,7 +200,7 @@ int qemu_chr_open_spice(QemuOpts *opts, CharDriverState **_chr)
if (name == NULL) {
fprintf(stderr, "spice-qemu-char: missing name parameter\n");
print_allowed_subtypes();
- return -EINVAL;
+ return NULL;
}
for(;*psubtype != NULL; ++psubtype) {
if (strcmp(name, *psubtype) == 0) {
@@ -211,7 +211,7 @@ int qemu_chr_open_spice(QemuOpts *opts, CharDriverState **_chr)
if (subtype == NULL) {
fprintf(stderr, "spice-qemu-char: unsupported name\n");
print_allowed_subtypes();
- return -EINVAL;
+ return NULL;
}
chr = g_malloc0(sizeof(CharDriverState));
@@ -233,6 +233,5 @@ int qemu_chr_open_spice(QemuOpts *opts, CharDriverState **_chr)
}
#endif
- *_chr = chr;
- return 0;
+ return chr;
}
diff --git a/ui/qemu-spice.h b/ui/qemu-spice.h
index 680206a58..3299da87d 100644
--- a/ui/qemu-spice.h
+++ b/ui/qemu-spice.h
@@ -45,7 +45,7 @@ int qemu_spice_migrate_info(const char *hostname, int port, int tls_port,
void do_info_spice_print(Monitor *mon, const QObject *data);
void do_info_spice(Monitor *mon, QObject **ret_data);
-int qemu_chr_open_spice(QemuOpts *opts, CharDriverState **_chr);
+CharDriverState *qemu_chr_open_spice(QemuOpts *opts);
#else /* CONFIG_SPICE */
#include "monitor.h"
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-27 05:11:50 +0000