GitHub/gf-core
1
0
Fork 1
mirror of https://github.com/GrammaticalFramework/gf-core.git synced 2026-05-04 16:52:50 -06:00
Code Issues Packages Projects Releases Wiki Activity

more compact implementation for GuStringBuf

Browse Source
This commit is contained in:
kr.angelov
2014-12-24 14:20:30 +00:00
parent 537bc249f9
commit 8fd24c3839
3 changed files with 46 additions and 71 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
src/runtime/c/gu/seq.c
View File

@@ -100,7 +100,7 @@ gu_seq_free(GuSeq* seq)
gu_mem_buf_free(seq);
}
static void
void
gu_buf_require(GuBuf* buf, size_t req_len)
{
if (req_len <= buf->avail_len) {
@@ -364,64 +364,3 @@ gu_buf_heapify(GuBuf *buf, GuOrder *order)
gu_heap_siftup(buf, order, value, i);
}
}
typedef struct GuBufOut GuBufOut;
struct GuBufOut
{
GuOutStream stream;
GuBuf* buf;
};
static size_t
gu_buf_out_output(GuOutStream* stream, const uint8_t* src, size_t sz,
GuExn* err)
{
(void) err;
GuBufOut* bout = gu_container(stream, GuBufOut, stream);
GuBuf* buf = bout->buf;
gu_assert(sz % buf->elem_size == 0);
size_t len = sz / buf->elem_size;
gu_buf_push_n(bout->buf, src, len);
return len;
}
static uint8_t*
gu_buf_outbuf_begin(GuOutStream* stream, size_t req, size_t* sz_out, GuExn* err)
{
(void) req;
(void) err;
GuBufOut* bout = gu_container(stream, GuBufOut, stream);
GuBuf* buf = bout->buf;
size_t esz = buf->elem_size;
size_t len = gu_buf_length(buf);
gu_buf_require(buf, len + (req + esz - 1) / esz);
size_t avail = buf->avail_len;
gu_assert(len < avail);
*sz_out = esz * (avail - len);
return &buf->seq->data[len * esz];
}
static void
gu_buf_outbuf_end(GuOutStream* stream, size_t sz, GuExn* err)
{
(void) err;
GuBufOut* bout = gu_container(stream, GuBufOut, stream);
GuBuf* buf = bout->buf;
size_t len = gu_buf_length(buf);
size_t elem_size = buf->elem_size;
gu_require(sz % elem_size == 0);
gu_require(sz < elem_size * (len - buf->avail_len));
buf->seq->len = len + (sz / elem_size);
}
GuOut*
gu_buf_out(GuBuf* buf, GuPool* pool)
{
GuBufOut* bout = gu_new(GuBufOut, pool);
bout->stream.output = gu_buf_out_output;
bout->stream.begin_buf = gu_buf_outbuf_begin;
bout->stream.end_buf = gu_buf_outbuf_end;
bout->stream.flush = NULL;
bout->buf = buf;
return gu_new_out(&bout->stream, pool);
}