diff options
Diffstat (limited to 'kernel/kapi/filesystem.cpp')
| -rw-r--r-- | kernel/kapi/filesystem.cpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/kernel/kapi/filesystem.cpp b/kernel/kapi/filesystem.cpp new file mode 100644 index 0000000..68b51c9 --- /dev/null +++ b/kernel/kapi/filesystem.cpp @@ -0,0 +1,76 @@ +#include <kapi/filesystem.hpp> + +#include <kernel/filesystem/open_file_descriptor.hpp> +#include <kernel/filesystem/open_file_table.hpp> +#include <kernel/filesystem/vfs.hpp> + +#include <kstd/memory> +#include <kstd/unikstd.h> + +#include <cstddef> +#include <string_view> + +namespace kapi::filesystem +{ + auto mount(std::string_view source, std::string_view target) -> kstd::ssize_t + { + if (kernel::filesystem::vfs::get().do_mount(source, target) == kernel::filesystem::vfs::operation_result::success) + { + return 0; + } + return -1; + } + + auto umount(std::string_view target) -> kstd::ssize_t + { + if (kernel::filesystem::vfs::get().unmount(target) == kernel::filesystem::vfs::operation_result::success) + { + return 0; + } + return -1; + } + + auto open(std::string_view path) -> kstd::ssize_t + { + if (auto dentry = kernel::filesystem::vfs::get().open(path)) + { + auto open_file_descriptor = kstd::make_shared<kernel::filesystem::open_file_descriptor>(dentry); + return kernel::filesystem::open_file_table::get().add_file(open_file_descriptor); + } + + return -1; + } + + auto close(size_t file_descriptor) -> kstd::ssize_t + { + if (auto open_file_descriptor = kernel::filesystem::open_file_table::get().file(file_descriptor)) + { + if (kernel::filesystem::vfs::get().close(open_file_descriptor->get_dentry()->absolute_path()) == + kernel::filesystem::vfs::operation_result::success) + { + return kernel::filesystem::open_file_table::get().remove_file(file_descriptor); + } + } + return -1; + } + + auto read(size_t file_descriptor, void * buffer, size_t size) -> kstd::ssize_t + { + if (auto open_file_descriptor = kernel::filesystem::open_file_table::get().file(file_descriptor)) + { + return open_file_descriptor->read(buffer, size); + } + + return -1; + } + + auto write(size_t file_descriptor, void const * buffer, size_t size) -> kstd::ssize_t + { + if (auto open_file_descriptor = kernel::filesystem::open_file_table::get().file(file_descriptor)) + { + return open_file_descriptor->write(buffer, size); + } + + return -1; + } +} // namespace kapi::filesystem
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