#[cases.bench_file_read]
## 0 = in-order
## 1 = reversed-order
## 2 = random-order
#defines.ORDER = [0, 1, 2]
#defines.SIZE = '128*1024'
#defines.CHUNK_SIZE = 64
#code = '''
#    lfs_t lfs;
#    lfs_format(&lfs, cfg) => 0;
#    lfs_mount(&lfs, cfg) => 0;
#    lfs_size_t chunks = (SIZE+CHUNK_SIZE-1)/CHUNK_SIZE;
#
#    // first write the file
#    lfs_file_t file;
#    uint8_t buffer[CHUNK_SIZE];
#    lfs_file_open(&lfs, &file, "file",
#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
#    for (lfs_size_t i = 0; i < chunks; i++) {
#        uint32_t chunk_prng = i;
#        for (lfs_size_t j = 0; j < CHUNK_SIZE; j++) {
#            buffer[j] = BENCH_PRNG(&chunk_prng);
#        }
#
#        lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
#    }
#    lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
#    lfs_file_close(&lfs, &file) => 0;
#
#    // then read the file
#    BENCH_START();
#    lfs_file_open(&lfs, &file, "file", LFS_O_RDONLY) => 0;
#
#    uint32_t prng = 42;
#    for (lfs_size_t i = 0; i < chunks; i++) {
#        lfs_off_t i_
#            = (ORDER == 0) ? i
#            : (ORDER == 1) ? (chunks-1-i)
#            : BENCH_PRNG(&prng) % chunks;
#        lfs_file_seek(&lfs, &file, i_*CHUNK_SIZE, LFS_SEEK_SET)
#                => i_*CHUNK_SIZE;
#        lfs_file_read(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
#
#        uint32_t chunk_prng = i_;
#        for (lfs_size_t j = 0; j < CHUNK_SIZE; j++) {
#            assert(buffer[j] == BENCH_PRNG(&chunk_prng));
#        }
#    }
#
#    lfs_file_close(&lfs, &file) => 0;
#    BENCH_STOP();
#
#    lfs_unmount(&lfs) => 0;
#'''
#
#[cases.bench_file_write]
## 0 = in-order
## 1 = reversed-order
## 2 = random-order
#defines.ORDER = [0, 1, 2]
#defines.SIZE = '128*1024'
#defines.CHUNK_SIZE = 64
#code = '''
#    lfs_t lfs;
#    lfs_format(&lfs, cfg) => 0;
#    lfs_mount(&lfs, cfg) => 0;
#    lfs_size_t chunks = (SIZE+CHUNK_SIZE-1)/CHUNK_SIZE;
#
#    BENCH_START();
#    lfs_file_t file;
#    lfs_file_open(&lfs, &file, "file",
#            LFS_O_WRONLY | LFS_O_CREAT | LFS_O_EXCL) => 0;
#
#    uint8_t buffer[CHUNK_SIZE];
#    uint32_t prng = 42;
#    for (lfs_size_t i = 0; i < chunks; i++) {
#        lfs_off_t i_
#            = (ORDER == 0) ? i
#            : (ORDER == 1) ? (chunks-1-i)
#            : BENCH_PRNG(&prng) % chunks;
#        uint32_t chunk_prng = i_;
#        for (lfs_size_t j = 0; j < CHUNK_SIZE; j++) {
#            buffer[j] = BENCH_PRNG(&chunk_prng);
#        }
#
#        lfs_file_seek(&lfs, &file, i_*CHUNK_SIZE, LFS_SEEK_SET)
#                => i_*CHUNK_SIZE;
#        lfs_file_write(&lfs, &file, buffer, CHUNK_SIZE) => CHUNK_SIZE;
#    }
#
#    lfs_file_close(&lfs, &file) => 0;
#    BENCH_STOP();
#
#    lfs_unmount(&lfs) => 0;
#'''