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add output-bytevector

This commit is contained in:
Yuichi Nishiwaki 2014-02-09 14:29:28 +09:00
parent d3f366770c
commit 241012d2f9
1 changed files with 40 additions and 0 deletions
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40
src/port.c
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@ -300,6 +300,44 @@ pic_port_open_input_blob(pic_state *pic)
return pic_obj_value(port);
}
static pic_value
pic_port_open_output_bytevector(pic_state *pic)
{
struct pic_port *port;
pic_get_args(pic, "");
port = (struct pic_port *)pic_obj_alloc(pic, sizeof(struct pic_port *), PIC_TT_PORT);
port->file = xmopen();
port->flags = PIC_PORT_OUT | PIC_PORT_BINARY;
port->status = PIC_PORT_OPEN;
return pic_obj_value(port);
}
static pic_value
pic_port_get_output_bytevector(pic_state *pic)
{
struct pic_port *port = pic_stdout(pic);;
long endpos;
char *buf;
pic_get_args(pic, "|p", &port);
assert_port_profile(port, PIC_PORT_OUT | PIC_PORT_BINARY, PIC_PORT_OPEN, "get-output-bytevector");
/* get endpos */
xfflush(port->file);
endpos = xftell(port->file);
xrewind(port->file);
/* copy to buf */
buf = (char *)pic_alloc(pic, endpos);
xfread(buf, 1, endpos, port->file);
return pic_obj_value(pic_blob_new(pic, buf, endpos));
}
static pic_value
pic_port_read_char(pic_state *pic)
{
@ -467,6 +505,8 @@ pic_init_port(pic_state *pic)
pic_defun(pic, "open-output-string", pic_port_open_output_string);
pic_defun(pic, "get-output-string", pic_port_get_output_string);
pic_defun(pic, "open-input-bytevector", pic_port_open_input_blob);
pic_defun(pic, "open-output-bytevector", pic_port_open_output_bytevector);
pic_defun(pic, "get-output-bytevector", pic_port_get_output_bytevector);
/* input */
pic_defun(pic, "read-char", pic_port_read_char);