libc/iconv/citrus_memstream.h

52 _citrus_memory_stream_iseof(struct _citrus_memory_stream *ms)
55 	return (ms->ms_pos >= _citrus_region_size(&ms->ms_region));
59 _citrus_memory_stream_bind(struct _citrus_memory_stream * __restrict ms,
63 	ms->ms_region = *r;
64 	ms->ms_pos = 0;
68 _citrus_memory_stream_bind_ptr(struct _citrus_memory_stream * __restrict ms,
74 	_citrus_memory_stream_bind(ms, &r);
78 _citrus_memory_stream_rewind(struct _citrus_memory_stream *ms)
81 	ms->ms_pos = 0;
85 _citrus_memory_stream_tell(struct _citrus_memory_stream *ms)
88 	return (ms->ms_pos);
92 _citrus_memory_stream_remainder(struct _citrus_memory_stream *ms)
96 	sz = _citrus_region_size(&ms->ms_region);
97 	if (ms->ms_pos>sz)
99 	return (sz-ms->ms_pos);
103 _citrus_memory_stream_seek(struct _citrus_memory_stream *ms, size_t pos, int w)
107 	sz = _citrus_region_size(&ms->ms_region);
113 		ms->ms_pos = pos;
116 		pos += (ssize_t)ms->ms_pos;
119 		ms->ms_pos = pos;
124 		ms->ms_pos = sz - pos;
131 _citrus_memory_stream_getc(struct _citrus_memory_stream *ms)
134 	if (_citrus_memory_stream_iseof(ms))
136 	return (_citrus_region_peek8(&ms->ms_region, ms->ms_pos++));
140 _citrus_memory_stream_ungetc(struct _citrus_memory_stream *ms, int ch)
143 	if (ch != EOF && ms->ms_pos > 0)
144 		ms->ms_pos--;
148 _citrus_memory_stream_peek(struct _citrus_memory_stream *ms)
151 	if (_citrus_memory_stream_iseof(ms))
153 	return (_citrus_region_peek8(&ms->ms_region, ms->ms_pos));
157 _citrus_memory_stream_getregion(struct _citrus_memory_stream *ms,
162 	if (ms->ms_pos + sz > _citrus_region_size(&ms->ms_region))
165 	ret = _citrus_region_offset(&ms->ms_region, ms->ms_pos);
166 	ms->ms_pos += sz;
174 _citrus_memory_stream_get8(struct _citrus_memory_stream *ms, uint8_t *rval)
177 	if (ms->ms_pos + 1 > _citrus_region_size(&ms->ms_region))
180 	*rval = _citrus_region_peek8(&ms->ms_region, ms->ms_pos);
181 	ms->ms_pos += 2;
187 _citrus_memory_stream_get16(struct _citrus_memory_stream *ms, uint16_t *rval)
190 	if (ms->ms_pos + 2 > _citrus_region_size(&ms->ms_region))
193 	*rval = _citrus_region_peek16(&ms->ms_region, ms->ms_pos);
194 	ms->ms_pos += 2;
200 _citrus_memory_stream_get32(struct _citrus_memory_stream *ms, uint32_t *rval)
203 	if (ms->ms_pos + 4 > _citrus_region_size(&ms->ms_region))
206 	*rval = _citrus_region_peek32(&ms->ms_region, ms->ms_pos);
207 	ms->ms_pos += 4;
213 _citrus_memory_stream_getln_region(struct _citrus_memory_stream *ms,
219 	ptr = _citrus_memory_stream_getln(ms, &sz);