Subversion Repositories HelenOS

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Ignore whitespace Rev 4163 → Rev 4164

/trunk/uspace/lib/libc/generic/console.c
38,10 → 38,32
#include <io/stream.h>
#include <ipc/console.h>
#include <ipc/services.h>
#include <errno.h>
#include <string.h>
#include <console.h>
 
static int console_phone = -1;
 
/** Size of cbuffer. */
#define CBUFFER_SIZE 256
 
/** Buffer for writing characters to the console. */
static char cbuffer[CBUFFER_SIZE];
 
/** Pointer to end of cbuffer. */
static char *cbuffer_end = cbuffer + CBUFFER_SIZE;
 
/** Pointer to first available field in cbuffer. */
static char *cbp = cbuffer;
 
static ssize_t cons_write(const char *buf, size_t nbyte);
static void cons_putchar(int c);
 
static void cbuffer_flush(void);
static void cbuffer_drain(void);
static void cbuffer_putc(int c);
 
 
void console_open(bool blocking)
{
if (console_phone < 0) {
84,6 → 106,8
void console_clear(void)
{
int cons_phone = console_phone_get(true);
 
cbuffer_drain();
async_msg_0(cons_phone, CONSOLE_CLEAR);
}
 
90,18 → 114,125
void console_goto(int row, int col)
{
int cons_phone = console_phone_get(true);
 
cbuffer_flush();
async_msg_2(cons_phone, CONSOLE_GOTO, row, col);
}
 
void console_putchar(int c)
{
cbuffer_putc(c);
}
 
/** Write all data from output buffer to the console. */
static void cbuffer_flush(void)
{
int rc;
int len;
 
len = cbp - cbuffer;
 
while (len > 0) {
rc = cons_write(cbuffer, cbp - cbuffer);
if (rc < 0)
return;
 
len -= rc;
}
 
cbp = cbuffer;
}
 
/** Drop all data in console output buffer. */
static void cbuffer_drain(void)
{
cbp = cbuffer;
}
 
/** Write one character to the output buffer. */
static inline void cbuffer_putc(int c)
{
if (cbp == cbuffer_end)
cbuffer_flush();
 
*cbp++ = c;
 
if (c == '\n')
cbuffer_flush();
}
 
/** Write one character to the console via IPC. */
static void cons_putchar(int c)
{
int cons_phone = console_phone_get(true);
async_msg_1(cons_phone, CONSOLE_PUTCHAR, c);
}
 
/** Write characters to the console via IPC. */
static ssize_t cons_write(const char *buf, size_t nbyte)
{
int cons_phone = console_phone_get(true);
ipcarg_t rc;
ipc_call_t answer;
aid_t req;
 
async_serialize_start();
req = async_send_0(cons_phone, CONSOLE_WRITE, &answer);
rc = ipc_data_write_start(cons_phone, (void *) buf, nbyte);
 
if (rc != EOK) {
async_wait_for(req, NULL);
async_serialize_end();
return (ssize_t) rc;
}
 
async_wait_for(req, &rc);
async_serialize_end();
 
if (rc == EOK)
return (ssize_t) IPC_GET_ARG1(answer);
else
return -1;
}
 
/** Write characters to the console. */
ssize_t console_write(const char *buf, size_t nbyte)
{
size_t left;
 
left = nbyte;
 
while (left > 0) {
cbuffer_putc(*buf++);
--left;
}
 
return nbyte;
}
 
/** Write a NULL-terminated string to the console. */
void console_putstr(const char *s)
{
size_t len;
ssize_t rc;
 
len = strlen(s);
while (len > 0) {
rc = console_write(s, len);
if (rc < 0)
return; /* Error */
s += rc;
len -= rc;
}
}
 
/** Flush all output to the console. */
void console_flush(void)
{
int cons_phone = console_phone_get(true);
int cons_phone = console_phone_get(false);
 
cbuffer_flush();
async_msg_0(cons_phone, CONSOLE_FLUSH);
}
 
122,6 → 253,8
void console_set_style(int style)
{
int cons_phone = console_phone_get(true);
 
cbuffer_flush();
async_msg_1(cons_phone, CONSOLE_SET_STYLE, style);
}
 
128,6 → 261,8
void console_set_color(int fg_color, int bg_color, int flags)
{
int cons_phone = console_phone_get(true);
 
cbuffer_flush();
async_msg_3(cons_phone, CONSOLE_SET_COLOR, fg_color, bg_color, flags);
}
 
134,6 → 269,8
void console_set_rgb_color(int fg_color, int bg_color)
{
int cons_phone = console_phone_get(true);
 
cbuffer_flush();
async_msg_2(cons_phone, CONSOLE_SET_RGB_COLOR, fg_color, bg_color);
}
 
140,6 → 277,8
void console_cursor_visibility(int show)
{
int cons_phone = console_phone_get(true);
 
cbuffer_flush();
async_msg_1(cons_phone, CONSOLE_CURSOR_VISIBILITY, show != 0);
}