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Annotation of 42BSD/usr.lib/lib2648/rawchar.c, revision 1.1.1.1

1.1       root        1: /*     rawchar.c       4.1     83/03/09        */
                      2: /*
                      3:  * get a character from the terminal, with no line buffering.
                      4:  */
                      5: 
                      6: #include "2648.h"
                      7: 
                      8: rawchar()
                      9: {
                     10:        char c;
                     11: 
                     12:        sync();
                     13:        escseq(NONE);
                     14:        fflush(stdout);
                     15:        if (_pb_front && _on2648) {
                     16:                c = *_pb_front++;
                     17: #ifdef TRACE
                     18:                if (trace)
                     19:                        fprintf(trace, "%s from queue, front=%d, back=%d\n", rdchar(c), _pb_front-_pushback, _pb_back-_pushback);
                     20: #endif
                     21:                if (_pb_front > _pb_back) {
                     22:                        _pb_front = _pb_back = NULL;
                     23: #ifdef TRACE
                     24:                        if (trace)
                     25:                                fprintf(trace, "reset pushback to null\n");
                     26: #endif
                     27:                }
                     28:                return (c);
                     29:        }
                     30:        _outcount = 0;
                     31:        c = getchar();
                     32: #ifdef TRACE
                     33:        if (trace)
                     34:                fprintf(trace, "rawchar '%s'\n", rdchar(c));
                     35: #endif
                     36:        return (c);
                     37: }

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