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refactor(shada): remove ShaDaReadDef secondary wrapper

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`FileDescriptor` is already a wrapper around an fd and a buffer.
By allowing to just use the buffer without an fd, it can
already handle in-memory reads.
This commit is contained in:
bfredl
2024-05-26 11:36:18 +02:00
parent c272f30b1f
commit b386334cdb
5 changed files with 113 additions and 238 deletions
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19
src/nvim/rbuffer.c
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@@ -29,6 +29,23 @@ RBuffer *rbuffer_new(size_t capacity)
return rv;
}
/// Creates a new `RBuffer` instance for reading from a buffer.
///
/// Must not be used with any write function like rbuffer_write_ptr or rbuffer_produced!
RBuffer *rbuffer_new_wrap_buf(char *data, size_t len)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_RET
{
RBuffer *rv = xcalloc(1, sizeof(RBuffer));
rv->full_cb = rv->nonfull_cb = NULL;
rv->data = NULL;
rv->size = len;
rv->read_ptr = data;
rv->write_ptr = data + len;
rv->end_ptr = NULL;
rv->temp = NULL;
return rv;
}
void rbuffer_free(RBuffer *buf) FUNC_ATTR_NONNULL_ALL
{
xfree(buf->temp);
@@ -129,7 +146,7 @@ void rbuffer_consumed(RBuffer *buf, size_t count)
assert(count <= buf->size);
buf->read_ptr += count;
if (buf->read_ptr >= buf->end_ptr) {
if (buf->end_ptr && buf->read_ptr >= buf->end_ptr) {
buf->read_ptr -= rbuffer_capacity(buf);
}