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a pool where the smallest chunks are memory pages

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krangelov
2018-12-16 07:46:14 +01:00
parent 083aa96e57
commit eb22112178
5 changed files with 92 additions and 30 deletions
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27
src/runtime/c/gu/seq.c
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@@ -100,6 +100,11 @@ gu_seq_free(GuSeq* seq)
gu_mem_buf_free(seq);
}
static void
gu_dummy_finalizer(GuFinalizer* self)
{
}
GU_API void
gu_buf_require(GuBuf* buf, size_t req_len)
{
@@ -109,7 +114,9 @@ gu_buf_require(GuBuf* buf, size_t req_len)
size_t req_size = sizeof(GuSeq) + buf->elem_size * req_len;
size_t real_size;
gu_require(buf->fin.fn != gu_dummy_finalizer);
if (buf->seq == NULL || buf->seq == gu_empty_seq()) {
buf->seq = gu_mem_buf_alloc(req_size, &real_size);
buf->seq->len = 0;
@@ -164,6 +171,24 @@ gu_buf_freeze(GuBuf* buf, GuPool* pool)
return seq;
}
GU_API void
gu_buf_evacuate(GuBuf* buf, GuPool* pool)
{
if (buf->seq != gu_empty_seq()) {
size_t len = gu_buf_length(buf);
GuSeq* seq = gu_make_seq(buf->elem_size, len, pool);
void* bufdata = gu_buf_data(buf);
void* seqdata = gu_seq_data(seq);
memcpy(seqdata, bufdata, buf->elem_size * len);
gu_mem_buf_free(buf->seq);
buf->seq = seq;
buf->fin.fn = gu_dummy_finalizer;
buf->avail_len = len;
}
}
GU_API void*
gu_buf_insert(GuBuf* buf, size_t index)
{