Function write_u16

server/src/server/disk_prefix_cache.cpp:180–180

static void write_u64(FILE * f, uint64_t v) { std::fwrite(&v, 8, 1, f); }
static void write_i64(FILE * f, int64_t v)  { std::fwrite(&v, 8, 1, f); }
static void write_u16(FILE * f, uint16_t v) { std::fwrite(&v, 2, 1, f); }

static bool read_u32(FILE * f, uint32_t & out) { return std::fread(&out, 4, 1, f) == 1; }
static bool read_u64(FILE * f, uint64_t & out) { return std::fread(&out, 8, 1, f) == 1; }