2 * declarations common to
4 * - gui-plan-* displayers
15 typedef struct CommandInput CommandInput;
17 /*---------- from obc.c ----------*/
19 typedef struct OutBuffer OutBuffer;
20 typedef struct OutBufferChain OutBufferChain;
21 typedef void OutBufferError(OutBufferChain*, const char *e1, const char *e2
22 /* on error: both e1 and e2 non-0. say `$e1: $e2'
23 * on eof: both e1 and e2 =0. */);
24 typedef void OutBufferEmpty(OutBufferChain*);
26 typedef void CopyCallBack(char *m, size_t l, void *u);
28 struct OutBufferChain {
32 int limit; /* 0 means obc_init will set a default */
33 OutBufferError *error;
34 OutBufferEmpty *empty; /* may be 0 */
35 /* set/used by obc_... but may be read by user */
36 int total; /* amount buffered */
37 /* set/used by obc_..., oprintf, etc., only */
39 struct { OutBuffer *head, *tail; } obs;
42 void obc_init(OutBufferChain *ch);
43 void obc_init_core(OutBufferChain *ch); /* doesn't mess with fd */
44 int obc_tryflush(OutBufferChain *ch);
45 /* returns 0 for all flushed or errno, including particularly EWOULDBLOCK */
47 void ovprintf_ccb(OutBufferChain *ch, CopyCallBack *ccb, void *ccbu,
48 const char *fmt, va_list al)
49 __attribute__((format(printf,4,0)));
50 void ovprintf(OutBufferChain *ch, const char *fmt, va_list al)
51 __attribute__((format(printf,2,0)));
52 void oprintf(OutBufferChain *ch, const char *msg, ...)
53 __attribute__((format(printf,2,3)));
54 void owrite(OutBufferChain *ch, const char *data, int l);
55 void voerror(OutBufferChain *ch, const char *fmt, va_list al)
56 __attribute__((format(printf,2,0)));
58 /*---------- from cmdinput.c ----------*/
60 extern oop_source *events;
62 typedef void CommandInputCallback(ParseState *ps, CommandInput *cmdi);
66 CommandInputCallback *doline;
70 void cmdin_new(CommandInput *cmdi, int readfd);
71 /* fill in cmdi->out's `set by user' fields before calling cmdin_new,
72 * as cmdin_new will call obc_init and will use cmdi->out->fd. */