void *handler_opaque;
void (*chr_send_event)(struct CharDriverState *chr, int event);
void (*chr_close)(struct CharDriverState *chr);
+ void (*chr_accept_input)(struct CharDriverState *chr);
void *opaque;
int focus;
QEMUBH *bh;
void qemu_chr_reset(CharDriverState *s);
int qemu_chr_can_read(CharDriverState *s);
void qemu_chr_read(CharDriverState *s, uint8_t *buf, int len);
+void qemu_chr_accept_input(CharDriverState *s);
/* async I/O support */
s->chr_read(s->handler_opaque, buf, len);
}
+void qemu_chr_accept_input(CharDriverState *s)
+{
+ if (s->chr_accept_input)
+ s->chr_accept_input(s);
+}
void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
{
static int term_timestamps;
static int64_t term_timestamps_start;
#define MAX_MUX 4
+#define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */
+#define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1)
typedef struct {
IOCanRWHandler *chr_can_read[MAX_MUX];
IOReadHandler *chr_read[MAX_MUX];
IOEventHandler *chr_event[MAX_MUX];
void *ext_opaque[MAX_MUX];
CharDriverState *drv;
+ unsigned char buffer[MUX_BUFFER_SIZE];
+ int prod;
+ int cons;
int mux_cnt;
int term_got_escape;
int max_size;
return 0;
}
+static void mux_chr_accept_input(CharDriverState *chr)
+{
+ int m = chr->focus;
+ MuxDriver *d = chr->opaque;
+
+ while (d->prod != d->cons &&
+ d->chr_can_read[m] &&
+ d->chr_can_read[m](d->ext_opaque[m])) {
+ d->chr_read[m](d->ext_opaque[m],
+ &d->buffer[d->cons++ & MUX_BUFFER_MASK], 1);
+ }
+}
+
static int mux_chr_can_read(void *opaque)
{
CharDriverState *chr = opaque;
MuxDriver *d = chr->opaque;
+
+ if ((d->prod - d->cons) < MUX_BUFFER_SIZE)
+ return 1;
if (d->chr_can_read[chr->focus])
- return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]);
+ return d->chr_can_read[chr->focus](d->ext_opaque[chr->focus]);
return 0;
}
{
CharDriverState *chr = opaque;
MuxDriver *d = chr->opaque;
+ int m = chr->focus;
int i;
+
+ mux_chr_accept_input (opaque);
+
for(i = 0; i < size; i++)
- if (mux_proc_byte(chr, d, buf[i]))
- d->chr_read[chr->focus](d->ext_opaque[chr->focus], &buf[i], 1);
+ if (mux_proc_byte(chr, d, buf[i])) {
+ if (d->prod == d->cons &&
+ d->chr_can_read[m] &&
+ d->chr_can_read[m](d->ext_opaque[m]))
+ d->chr_read[m](d->ext_opaque[m], &buf[i], 1);
+ else
+ d->buffer[d->prod++ & MUX_BUFFER_MASK] = buf[i];
+ }
}
static void mux_chr_event(void *opaque, int event)
chr->focus = -1;
chr->chr_write = mux_chr_write;
chr->chr_update_read_handler = mux_chr_update_read_handler;
+ chr->chr_accept_input = mux_chr_accept_input;
return chr;
}