menu "POSIX layer and C standard library"

config RT_USING_LIBC
    bool "Enable libc APIs from toolchain"
    select RT_USING_HEAP
    default n

if RT_USING_LIBC
    config RT_LIBC_USING_TIME
        default y

    config RT_LIBC_USING_FILEIO
        bool "Enable libc with file operation, eg.fopen/fwrite/fread/getchar"
        select RT_USING_POSIX
        select RT_USING_POSIX_STDIO
        default n

    config RT_USING_MODULE
        bool "Enable dynamic module with dlopen/dlsym/dlclose feature"
        default n

    if RT_USING_MODULE
        config RT_USING_CUSTOM_DLMODULE
            bool "Enable load dynamic module by custom"
            default n
    endif
endif

if RT_USING_LIBC != y
    config RT_LIBC_USING_TIME
    bool "Enable time functions without compiler's libc"
    default y
endif

config RT_LIBC_DEFAULT_TIMEZONE
    depends on (RT_LIBC_USING_TIME || RT_USING_LIBC)
    int "Set the default time zone (UTC+)"
    range -12 12
    default 8

config RT_USING_POSIX
    bool "Enable basic POSIX layer, open()/read()/write()/close() etc"
    select RT_USING_DFS
    default n

if RT_USING_POSIX
    config RT_USING_POSIX_STDIO
        bool "Enable standard I/O, STDOUT_FILENO/STDIN_FILENO/STDERR_FILENO"
        select RT_USING_DFS
        select RT_USING_DFS_DEVFS
        default n

    config RT_USING_POSIX_POLL
        bool "Enable poll()"
        select RT_USING_DFS
        default n

    config RT_USING_POSIX_SELECT
        bool "Enable select()"
        select RT_USING_DFS
        select RT_USING_POSIX_POLL
        default n

    config RT_USING_POSIX_DELAY
        bool "Enable delay APIs, sleep()/usleep()/msleep() etc"
        default n

    config RT_USING_POSIX_GETLINE
        bool "Enable getline()/getdelim()"
        default n

    config RT_USING_POSIX_MMAP
        bool "Enable mmap()"
        select RT_USING_DFS
        default n

    config RT_USING_POSIX_TERMIOS
        bool "Enable termios APIs"
        default n

    config RT_USING_POSIX_AIO
        bool "Enable AIO APIs"
        default n
endif

config RT_USING_PTHREADS
    bool "Enable pthreads APIs"
    default n

if RT_USING_PTHREADS
    config PTHREAD_NUM_MAX
        int "Maximum number of pthreads"
        default 8
endif

endmenu