74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*
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* This file is part of Jehanne.
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*
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* Copyright (C) 2015 Giacomo Tesio <giacomo@tesio.it>
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*
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* Jehanne is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* Jehanne is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Jehanne. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define IODATASZ 8192 /* do not change this, or convM2S wont work! */
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enum
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{
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KeyboardBufferSize = 32,
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ScreenBufferSize = KeyboardBufferSize*8,
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};
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/* Read from the first fd, do its own work, and write to the second */
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typedef void (*StreamFilter)(int, int);
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extern int systemwide; /* all the system depend on this console:
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* - allow multiple attach
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* - never end fsserve
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*/
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extern int blind; /* no feedback for input, disables rawmode */
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extern int linecontrol;
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extern int crnl; /* turn \n into \r\n to output device */
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extern int debugging;
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extern void enabledebug(const char *);
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extern void debug(const char *, ...);
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typedef struct Buffer Buffer;
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struct Buffer
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{
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uint32_t size;
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uint32_t written;
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uint32_t read;
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uint32_t ctrld; /* index of first byte after a ^D (input only) */
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int newlines; /* number of newlines (input only) */
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int linewidth;
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void (*add)(char, Buffer *);
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char *data;
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};
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extern Buffer* balloc(uint32_t);
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extern uint32_t bwrite(Buffer *, char *, uint32_t);
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extern char *bread(Buffer *, uint32_t *);
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extern char *breadln(Buffer *b, uint32_t *length);
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extern int blineready(Buffer *);
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#define bempty(b) (b->read == b->written && b->ctrld == b->size)
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#define bspace(b) (b->size - b->written)
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#define bpending(b) (b->written - b->read)
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extern int servecons(StreamFilter, StreamFilter, int*);
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extern void post(char *srv, int fd);
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extern int fsinit(int *, int *);
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extern void fsserve(int);
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extern void passthrough(int, int);
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extern void writecga(int, int);
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extern void readkeyboard(int, int);
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