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[WIP] add a buffer for ungetc

This commit is contained in:
Yuichi Nishiwaki 2014-01-16 18:41:55 +09:00
parent 9897f7581f
commit 4e495c6fcc
2 changed files with 10 additions and 0 deletions
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8
include/picrin/port.h
View File

@ -15,11 +15,19 @@ enum pic_port_status {
PIC_PORT_CLOSE,
};
#define PIC_UBUFSIZ 3
typedef struct {
/* buffered IO */
char *buf;
int mode;
int bufsiz;
char *s, *c, *e;
/* ungetc buf */
char ub[PIC_UBUFSIZ];
int us;
int ur;
/* operators */
struct {
void *cookie;
int (*read)(void *, char *, int);

2
src/port.c
View File

@ -94,6 +94,8 @@ pic_funopen(void *cookie,
file->buf = NULL;
file->mode = _IONBF;
file->bufsiz = 0;
file->us = PIC_UBUFSIZ;
file->ur = 0;
/* set vtable */
file->vtable.cookie = cookie;
file->vtable.read = read;