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docs(kernel): short doc for __check_op macro

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Signed-off-by: EnderIce2 <enderice2@protonmail.com>
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EnderIce2 2025-03-02 23:14:40 +00:00
parent 8eed8909da
commit 426a84a1a9
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1 changed files with 18 additions and 0 deletions
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18
Kernel/include/filesystem.hpp
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@ -31,6 +31,24 @@
static_assert(DTTOIF(DT_FIFO) == S_IFIFO); static_assert(DTTOIF(DT_FIFO) == S_IFIFO);
static_assert(IFTODT(S_IFCHR) == DT_CHR); static_assert(IFTODT(S_IFCHR) == DT_CHR);
/**
* This macro is used to check if a filesystem operation is available.
*
* TL;DR
*
* @code
* if FileSystemInfo.Ops.op == nullptr
* return -err
* else
* return FileSystemInfo.Ops.op(this->Node, ...);
* @endcode
*
* @param op The operation to check.
* @param err The error to return if the operation is not available.
* @param ... The arguments to pass to the operation.
*
* @return The result of the operation.
*/
#define __check_op(op, err, ...) \ #define __check_op(op, err, ...) \
if (fsi->Ops.op == nullptr) \ if (fsi->Ops.op == nullptr) \
return -err; \ return -err; \