Ji-Xinyou commented on code in PR #1861:
URL:
https://github.com/apache/incubator-opendal/pull/1861#discussion_r1159898725
##########
bindings/c/include/opendal.h:
##########
@@ -25,15 +25,69 @@
#include <stddef.h>
#include <stdbool.h>
+/*
+ The [`OperatorPtr`] owns a pointer to a [`BlockingOperator`].
+ It is also the key struct that OpenDAL's APIs access the real
+ operator's memory. The use of OperatorPtr is zero cost, it
+ only returns a reference of the underlying Operator.
+ */
+typedef struct opendal_operator_ptr {
+ const void *ptr;
+} opendal_operator_ptr;
+
+/*
+ The [`Vector`] type is a C-compatable substitute for [`Vec`]
+ in Rust, it will not be deallocated automatically like what
+ has been done in Rust. Instead, you have to call [`free_vec`]
+ to free the heap memory to avoid memory leak.
+ The field `data` should not be modified since it might causes
+ the reallocation of the Vector.
+ */
+typedef struct opendal_vector {
+ const uint8_t *data;
+ uintptr_t len;
+} opendal_vector;
+
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
+/*
+ Constructs a new [`OperatorPtr`] which contains a underlying
[`BlockingOperator`]
+ If the scheme is invalid, or the operator contructions failed, a nullptr is
returned
+ */
+struct opendal_operator_ptr od_new_operator(const char *scheme);
+
+/*
+ Write the data into the path blockingly by operator, returns whether the
write succeeds
+ */
+bool od_operator_blocking_write(struct opendal_operator_ptr op_ptr,
Review Comment:
I have added the `Result` and `Error` type, it is relatively a big PR now....
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