kst_store_io_t Struct Reference

The card. More...

#include <kst_store.h>

Data Fields
void *	ctx
bool(*)	mounted (void *ctx)
	Whether a card is mounted.
bool(*)	walk (void *ctx, kst_store_visit_fn visit, void *visit_ctx)
	Call visit for every entry of the directory, files and directories, once each.
int32_t(*)	size (void *ctx, const char *name)
	Size of a file in bytes; -1 when no file has that name.
int32_t(*)	read (void *ctx, const char *name, char *buf, size_t cap)
	Up to cap bytes from the start of the file.
kst_store_io_result_t(*)	create (void *ctx, const char *name, const char *data, size_t len)
	Create the directory when it is missing, create the file and fail when the name exists, write len bytes, commit them to the card and close.

Detailed Description

The card.

Every name is a name inside KST_STORE_DIR. All 5 functions are set.

Field Documentation

ctx

void* kst_store_io_t::ctx

passed to every function

read

int32_t(*) kst_store_io_t::read(void *ctx, const char *name, char *buf, size_t cap)

Up to cap bytes from the start of the file.

Returns the count, -1 on a failure.

walk

bool(*) kst_store_io_t::walk(void *ctx, kst_store_visit_fn visit, void *visit_ctx)

Call visit for every entry of the directory, files and directories, once each.

A directory that does not exist has no entry. False when the directory does not read to its end.

---

The documentation for this struct was generated from the following file:

• shared/logfile/include/kst_store.h