| #pragma once |
| |
| /* NOTE: IIRC, wak@ is working on exposing some of this in stdplus, so we can |
| * transition when that's ready. |
| * |
| * Copied some from gpioplus to enable unit-testing of lpc nuvoton and later |
| * other pieces. |
| */ |
| |
| #include <netdb.h> |
| #include <poll.h> |
| #include <sys/mman.h> |
| #include <sys/socket.h> |
| #include <sys/types.h> |
| |
| #include <cinttypes> |
| #include <cstddef> |
| #include <cstdint> |
| |
| namespace internal |
| { |
| |
| /** |
| * @class Sys |
| * @brief Overridable direct syscall interface |
| */ |
| class Sys |
| { |
| public: |
| virtual ~Sys() = default; |
| |
| virtual int open(const char* pathname, int flags) const = 0; |
| virtual int read(int fd, void* buf, std::size_t count) const = 0; |
| virtual int pread(int fd, void* buf, std::size_t count, |
| off_t offset) const = 0; |
| virtual int pwrite(int fd, const void* buf, std::size_t count, |
| off_t offset) const = 0; |
| virtual int close(int fd) const = 0; |
| virtual void* mmap(void* addr, std::size_t length, int prot, int flags, |
| int fd, off_t offset) const = 0; |
| virtual int munmap(void* addr, std::size_t length) const = 0; |
| virtual int getpagesize() const = 0; |
| virtual int ioctl(int fd, unsigned long request, void* param) const = 0; |
| virtual int poll(struct pollfd* fds, nfds_t nfds, int timeout) const = 0; |
| virtual int socket(int domain, int type, int protocol) const = 0; |
| virtual int connect(int sockfd, const struct sockaddr* addr, |
| socklen_t addrlen) const = 0; |
| virtual ssize_t sendfile(int out_fd, int in_fd, off_t* offset, |
| size_t count) const = 0; |
| virtual int getaddrinfo(const char* node, const char* service, |
| const struct addrinfo* hints, |
| struct addrinfo** res) const = 0; |
| virtual void freeaddrinfo(struct addrinfo* res) const = 0; |
| virtual std::int64_t getSize(const char* pathname) const = 0; |
| }; |
| |
| /** |
| * @class SysImpl |
| * @brief syscall concrete implementation |
| * @details Passes through all calls to the normal linux syscalls |
| */ |
| class SysImpl : public Sys |
| { |
| public: |
| int open(const char* pathname, int flags) const override; |
| int read(int fd, void* buf, std::size_t count) const override; |
| int pread(int fd, void* buf, std::size_t count, |
| off_t offset) const override; |
| int pwrite(int fd, const void* buf, std::size_t count, |
| off_t offset) const override; |
| int close(int fd) const override; |
| void* mmap(void* addr, std::size_t length, int prot, int flags, int fd, |
| off_t offset) const override; |
| int munmap(void* addr, std::size_t length) const override; |
| int getpagesize() const override; |
| int ioctl(int fd, unsigned long request, void* param) const override; |
| int poll(struct pollfd* fds, nfds_t nfds, int timeout) const override; |
| int socket(int domain, int type, int protocol) const override; |
| int connect(int sockfd, const struct sockaddr* addr, |
| socklen_t addrlen) const override; |
| ssize_t sendfile(int out_fd, int in_fd, off_t* offset, |
| size_t count) const override; |
| int getaddrinfo(const char* node, const char* service, |
| const struct addrinfo* hints, |
| struct addrinfo** res) const override; |
| void freeaddrinfo(struct addrinfo* res) const override; |
| /* returns 0 on failure, or if the file is zero bytes. */ |
| std::int64_t getSize(const char* pathname) const override; |
| }; |
| |
| /** @brief Default instantiation of sys */ |
| extern SysImpl sys_impl; |
| |
| } // namespace internal |