1 #ifndef _BUFFER_H____ 2 #define _BUFFER_H____ 3 4 typedef struct buffer { 5 char *x; 6 long long p; 7 long long n; 8 int fd; 9 long long (*op)(); 10 } buffer; 11 12 #define BUFFER_INIT(op, fd, buf, len) { (buf), 0, (len), (fd), (op) } 13 #define BUFFER_INSIZE 8192 14 #define BUFFER_OUTSIZE 8192 15 #define BUFFER_ERRSIZE 256 16 17 extern void buffer_init(buffer *, long long (*op)(), int, char *, long long); 18 19 extern int buffer_flush(buffer *); 20 extern int buffer_putalign(buffer *, const char *, long long); 21 extern int buffer_put(buffer *, const char *, long long); 22 extern int buffer_putflush(buffer *, const char *, long long); 23 extern int buffer_putsalign(buffer *, const char *); 24 extern int buffer_puts(buffer *, const char *); 25 extern int buffer_putsflush(buffer *, const char *); 26 27 #define buffer_PUTC(s,c) \ 28 ( ((s)->n != (s)->p) \ 29 ? ( (s)->x[(s)->p++] = (c), 0 ) \ 30 : buffer_put((s),&(c),1) \ 31 ) 32 33 extern long long buffer_get(buffer *, char *, long long); 34 extern long long buffer_bget(buffer *, char *, long long); 35 extern long long buffer_feed(buffer *); 36 37 extern char *buffer_peek(buffer *); 38 extern void buffer_seek(buffer *, long long); 39 40 #define buffer_PEEK(s) ( (s)->x + (s)->n ) 41 #define buffer_SEEK(s,len) ( ( (s)->p -= (len) ) , ( (s)->n += (len) ) ) 42 43 #define buffer_GETC(s,c) \ 44 ( ((s)->p > 0) \ 45 ? ( *(c) = (s)->x[(s)->n], buffer_SEEK((s),1), 1 ) \ 46 : buffer_get((s),(c),1) \ 47 ) 48 49 extern int buffer_copy(buffer *,buffer *); 50 51 extern long long buffer_unixread(int, char *, long long); 52 extern long long buffer_unixwrite(int, const char *, long long); 53 54 #define buffer_PEEK(s) ( (s)->x + (s)->n ) 55 #define buffer_SEEK(s, len) ( ( (s)->p -= (len) ) , ( (s)->n += (len) ) ) 56 57 extern buffer *buffer_0; 58 extern buffer *buffer_0small; 59 extern buffer *buffer_1; 60 extern buffer *buffer_1small; 61 extern buffer *buffer_2; 62 63 #endif 64