| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* this file contains system-dependent definitions used by ADB |
| * they're related to threads, sockets and file descriptors |
| */ |
| #ifndef _ADB_SYSDEPS_H |
| #define _ADB_SYSDEPS_H |
| |
| #ifdef __CYGWIN__ |
| # undef _WIN32 |
| #endif |
| |
| #include <errno.h> |
| |
| #include <string> |
| #include <vector> |
| |
| // Include this before open/close/unlink are defined as macros below. |
| #include <android-base/errors.h> |
| #include <android-base/unique_fd.h> |
| #include <android-base/utf8.h> |
| |
| #include "sysdeps/stat.h" |
| |
| /* |
| * TEMP_FAILURE_RETRY is defined by some, but not all, versions of |
| * <unistd.h>. (Alas, it is not as standard as we'd hoped!) So, if it's |
| * not already defined, then define it here. |
| */ |
| #ifndef TEMP_FAILURE_RETRY |
| /* Used to retry syscalls that can return EINTR. */ |
| #define TEMP_FAILURE_RETRY(exp) ({ \ |
| typeof (exp) _rc; \ |
| do { \ |
| _rc = (exp); \ |
| } while (_rc == -1 && errno == EINTR); \ |
| _rc; }) |
| #endif |
| |
| // Some printf-like functions are implemented in terms of |
| // android::base::StringAppendV, so they should use the same attribute for |
| // compile-time format string checking. On Windows, if the mingw version of |
| // vsnprintf is used in StringAppendV, use `gnu_printf' which allows z in %zd |
| // and PRIu64 (and related) to be recognized by the compile-time checking. |
| #define ADB_FORMAT_ARCHETYPE __printf__ |
| #ifdef __USE_MINGW_ANSI_STDIO |
| #if __USE_MINGW_ANSI_STDIO |
| #undef ADB_FORMAT_ARCHETYPE |
| #define ADB_FORMAT_ARCHETYPE gnu_printf |
| #endif |
| #endif |
| |
| #ifdef _WIN32 |
| |
| // Clang-only nullability specifiers |
| #define _Nonnull |
| #define _Nullable |
| |
| #include <ctype.h> |
| #include <direct.h> |
| #include <dirent.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <io.h> |
| #include <process.h> |
| #include <sys/stat.h> |
| #include <utime.h> |
| #include <winsock2.h> |
| #include <windows.h> |
| #include <ws2tcpip.h> |
| |
| #include <memory> // unique_ptr |
| #include <string> |
| |
| #include "fdevent.h" |
| |
| #define OS_PATH_SEPARATORS "\\/" |
| #define OS_PATH_SEPARATOR '\\' |
| #define OS_PATH_SEPARATOR_STR "\\" |
| #define ENV_PATH_SEPARATOR_STR ";" |
| |
| static __inline__ bool adb_is_separator(char c) { |
| return c == '\\' || c == '/'; |
| } |
| |
| typedef CRITICAL_SECTION adb_mutex_t; |
| |
| #define ADB_MUTEX_DEFINE(x) adb_mutex_t x |
| |
| /* declare all mutexes */ |
| /* For win32, adb_sysdeps_init() will do the mutex runtime initialization. */ |
| #define ADB_MUTEX(x) extern adb_mutex_t x; |
| #include "mutex_list.h" |
| |
| extern void adb_sysdeps_init(void); |
| |
| static __inline__ void adb_mutex_lock( adb_mutex_t* lock ) |
| { |
| EnterCriticalSection( lock ); |
| } |
| |
| static __inline__ void adb_mutex_unlock( adb_mutex_t* lock ) |
| { |
| LeaveCriticalSection( lock ); |
| } |
| |
| typedef void (*adb_thread_func_t)(void* arg); |
| typedef HANDLE adb_thread_t; |
| |
| struct adb_winthread_args { |
| adb_thread_func_t func; |
| void* arg; |
| }; |
| |
| static unsigned __stdcall adb_winthread_wrapper(void* heap_args) { |
| // Move the arguments from the heap onto the thread's stack. |
| adb_winthread_args thread_args = *static_cast<adb_winthread_args*>(heap_args); |
| delete static_cast<adb_winthread_args*>(heap_args); |
| thread_args.func(thread_args.arg); |
| return 0; |
| } |
| |
| static __inline__ bool adb_thread_create(adb_thread_func_t func, void* arg, |
| adb_thread_t* thread = nullptr) { |
| adb_winthread_args* args = new adb_winthread_args{.func = func, .arg = arg}; |
| uintptr_t handle = _beginthreadex(nullptr, 0, adb_winthread_wrapper, args, 0, nullptr); |
| if (handle != static_cast<uintptr_t>(0)) { |
| if (thread) { |
| *thread = reinterpret_cast<HANDLE>(handle); |
| } else { |
| CloseHandle(thread); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| static __inline__ bool adb_thread_join(adb_thread_t thread) { |
| switch (WaitForSingleObject(thread, INFINITE)) { |
| case WAIT_OBJECT_0: |
| CloseHandle(thread); |
| return true; |
| |
| case WAIT_FAILED: |
| fprintf(stderr, "adb_thread_join failed: %s\n", |
| android::base::SystemErrorCodeToString(GetLastError()).c_str()); |
| break; |
| |
| default: |
| abort(); |
| } |
| |
| return false; |
| } |
| |
| static __inline__ bool adb_thread_detach(adb_thread_t thread) { |
| CloseHandle(thread); |
| return true; |
| } |
| |
| static __inline__ void __attribute__((noreturn)) adb_thread_exit() { |
| _endthreadex(0); |
| } |
| |
| static __inline__ int adb_thread_setname(const std::string& name) { |
| // TODO: See https://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx for how to set |
| // the thread name in Windows. Unfortunately, it only works during debugging, but |
| // our build process doesn't generate PDB files needed for debugging. |
| return 0; |
| } |
| |
| static __inline__ adb_thread_t adb_thread_self() { |
| return GetCurrentThread(); |
| } |
| |
| static __inline__ bool adb_thread_equal(adb_thread_t lhs, adb_thread_t rhs) { |
| return GetThreadId(lhs) == GetThreadId(rhs); |
| } |
| |
| static __inline__ unsigned long adb_thread_id() |
| { |
| return GetCurrentThreadId(); |
| } |
| |
| static __inline__ void close_on_exec(int fd) |
| { |
| /* nothing really */ |
| } |
| |
| #define S_ISLNK(m) 0 /* no symlinks on Win32 */ |
| |
| extern int adb_unlink(const char* path); |
| #undef unlink |
| #define unlink ___xxx_unlink |
| |
| extern int adb_mkdir(const std::string& path, int mode); |
| #undef mkdir |
| #define mkdir ___xxx_mkdir |
| |
| // See the comments for the !defined(_WIN32) versions of adb_*(). |
| extern int adb_open(const char* path, int options); |
| extern int adb_creat(const char* path, int mode); |
| extern int adb_read(int fd, void* buf, int len); |
| extern int adb_write(int fd, const void* buf, int len); |
| extern int adb_lseek(int fd, int pos, int where); |
| extern int adb_shutdown(int fd); |
| extern int adb_close(int fd); |
| |
| // See the comments for the !defined(_WIN32) version of unix_close(). |
| static __inline__ int unix_close(int fd) |
| { |
| return close(fd); |
| } |
| #undef close |
| #define close ____xxx_close |
| |
| // Like unix_read(), but may return EINTR. |
| extern int unix_read_interruptible(int fd, void* buf, size_t len); |
| |
| // See the comments for the !defined(_WIN32) version of unix_read(). |
| static __inline__ int unix_read(int fd, void* buf, size_t len) { |
| return TEMP_FAILURE_RETRY(unix_read_interruptible(fd, buf, len)); |
| } |
| |
| #undef read |
| #define read ___xxx_read |
| |
| // See the comments for the !defined(_WIN32) version of unix_write(). |
| static __inline__ int unix_write(int fd, const void* buf, size_t len) |
| { |
| return write(fd, buf, len); |
| } |
| #undef write |
| #define write ___xxx_write |
| |
| // See the comments for the !defined(_WIN32) version of adb_open_mode(). |
| static __inline__ int adb_open_mode(const char* path, int options, int mode) |
| { |
| return adb_open(path, options); |
| } |
| |
| // See the comments for the !defined(_WIN32) version of unix_open(). |
| extern int unix_open(const char* path, int options, ...); |
| #define open ___xxx_unix_open |
| |
| // Checks if |fd| corresponds to a console. |
| // Standard Windows isatty() returns 1 for both console FDs and character |
| // devices like NUL. unix_isatty() performs some extra checking to only match |
| // console FDs. |
| // |fd| must be a real file descriptor, meaning STDxx_FILENO or unix_open() FDs |
| // will work but adb_open() FDs will not. Additionally the OS handle associated |
| // with |fd| must have GENERIC_READ access (which console FDs have by default). |
| // Returns 1 if |fd| is a console FD, 0 otherwise. The value of errno after |
| // calling this function is unreliable and should not be used. |
| int unix_isatty(int fd); |
| #define isatty ___xxx_isatty |
| |
| static __inline__ void adb_sleep_ms( int mseconds ) |
| { |
| Sleep( mseconds ); |
| } |
| |
| int network_loopback_client(int port, int type, std::string* error); |
| int network_loopback_server(int port, int type, std::string* error); |
| int network_inaddr_any_server(int port, int type, std::string* error); |
| int network_connect(const std::string& host, int port, int type, int timeout, |
| std::string* error); |
| |
| extern int adb_socket_accept(int serverfd, struct sockaddr* addr, socklen_t *addrlen); |
| |
| #undef accept |
| #define accept ___xxx_accept |
| |
| // Returns the local port number of a bound socket, or -1 on failure. |
| int adb_socket_get_local_port(int fd); |
| |
| extern int adb_setsockopt(int fd, int level, int optname, const void* optval, socklen_t optlen); |
| |
| #undef setsockopt |
| #define setsockopt ___xxx_setsockopt |
| |
| extern int adb_socketpair( int sv[2] ); |
| |
| struct adb_pollfd { |
| int fd; |
| short events; |
| short revents; |
| }; |
| extern int adb_poll(adb_pollfd* fds, size_t nfds, int timeout); |
| #define poll ___xxx_poll |
| |
| static __inline__ int adb_is_absolute_host_path(const char* path) { |
| return isalpha(path[0]) && path[1] == ':' && path[2] == '\\'; |
| } |
| |
| // UTF-8 versions of POSIX APIs. |
| extern DIR* adb_opendir(const char* dirname); |
| extern struct dirent* adb_readdir(DIR* dir); |
| extern int adb_closedir(DIR* dir); |
| |
| extern int adb_utime(const char *, struct utimbuf *); |
| extern int adb_chmod(const char *, int); |
| |
| extern int adb_vfprintf(FILE *stream, const char *format, va_list ap) |
| __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 2, 0))); |
| extern int adb_vprintf(const char *format, va_list ap) |
| __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 1, 0))); |
| extern int adb_fprintf(FILE *stream, const char *format, ...) |
| __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 2, 3))); |
| extern int adb_printf(const char *format, ...) |
| __attribute__((__format__(ADB_FORMAT_ARCHETYPE, 1, 2))); |
| |
| extern int adb_fputs(const char* buf, FILE* stream); |
| extern int adb_fputc(int ch, FILE* stream); |
| extern int adb_putchar(int ch); |
| extern int adb_puts(const char* buf); |
| extern size_t adb_fwrite(const void* ptr, size_t size, size_t nmemb, |
| FILE* stream); |
| |
| extern FILE* adb_fopen(const char* f, const char* m); |
| |
| extern char* adb_getenv(const char* name); |
| |
| extern char* adb_getcwd(char* buf, int size); |
| |
| // Remap calls to POSIX APIs to our UTF-8 versions. |
| #define opendir adb_opendir |
| #define readdir adb_readdir |
| #define closedir adb_closedir |
| #define rewinddir rewinddir_utf8_not_yet_implemented |
| #define telldir telldir_utf8_not_yet_implemented |
| // Some compiler's C++ headers have members named seekdir, so we can't do the |
| // macro technique and instead cause a link error if seekdir is called. |
| inline void seekdir(DIR*, long) { |
| extern int seekdir_utf8_not_yet_implemented; |
| seekdir_utf8_not_yet_implemented = 1; |
| } |
| |
| #define utime adb_utime |
| #define chmod adb_chmod |
| |
| #define vfprintf adb_vfprintf |
| #define vprintf adb_vprintf |
| #define fprintf adb_fprintf |
| #define printf adb_printf |
| #define fputs adb_fputs |
| #define fputc adb_fputc |
| // putc may be a macro, so if so, undefine it, so that we can redefine it. |
| #undef putc |
| #define putc(c, s) adb_fputc(c, s) |
| #define putchar adb_putchar |
| #define puts adb_puts |
| #define fwrite adb_fwrite |
| |
| #define fopen adb_fopen |
| #define freopen freopen_utf8_not_yet_implemented |
| |
| #define getenv adb_getenv |
| #define putenv putenv_utf8_not_yet_implemented |
| #define setenv setenv_utf8_not_yet_implemented |
| #define unsetenv unsetenv_utf8_not_yet_implemented |
| |
| #define getcwd adb_getcwd |
| |
| char* adb_strerror(int err); |
| #define strerror adb_strerror |
| |
| // Helper class to convert UTF-16 argv from wmain() to UTF-8 args that can be |
| // passed to main(). |
| class NarrowArgs { |
| public: |
| NarrowArgs(int argc, wchar_t** argv); |
| ~NarrowArgs(); |
| |
| inline char** data() { |
| return narrow_args; |
| } |
| |
| private: |
| char** narrow_args; |
| }; |
| |
| // Windows HANDLE values only use 32-bits of the type, even on 64-bit machines, |
| // so they can fit in an int. To convert back, we just need to sign-extend. |
| // https://msdn.microsoft.com/en-us/library/windows/desktop/aa384203%28v=vs.85%29.aspx |
| // Note that this does not make a HANDLE value work with APIs like open(), nor |
| // does this make a value from open() passable to APIs taking a HANDLE. This |
| // just lets you take a HANDLE, pass it around as an int, and then use it again |
| // as a HANDLE. |
| inline int cast_handle_to_int(const HANDLE h) { |
| // truncate |
| return static_cast<int>(reinterpret_cast<INT_PTR>(h)); |
| } |
| |
| inline HANDLE cast_int_to_handle(const int fd) { |
| // sign-extend |
| return reinterpret_cast<HANDLE>(static_cast<INT_PTR>(fd)); |
| } |
| |
| // Deleter for unique_handle. Adapted from many sources, including: |
| // http://stackoverflow.com/questions/14841396/stdunique-ptr-deleters-and-the-win32-api |
| // https://visualstudiomagazine.com/articles/2013/09/01/get-a-handle-on-the-windows-api.aspx |
| class handle_deleter { |
| public: |
| typedef HANDLE pointer; |
| |
| void operator()(HANDLE h); |
| }; |
| |
| // Like std::unique_ptr, but for Windows HANDLE objects that should be |
| // CloseHandle()'d. Operator bool() only checks if the handle != nullptr, |
| // but does not check if the handle != INVALID_HANDLE_VALUE. |
| typedef std::unique_ptr<HANDLE, handle_deleter> unique_handle; |
| |
| namespace internal { |
| |
| size_t ParseCompleteUTF8(const char* first, const char* last, std::vector<char>* remaining_bytes); |
| |
| } |
| |
| #else /* !_WIN32 a.k.a. Unix */ |
| |
| #include <cutils/sockets.h> |
| #include <cutils/threads.h> |
| #include <fcntl.h> |
| #include <poll.h> |
| #include <signal.h> |
| #include <sys/stat.h> |
| #include <sys/wait.h> |
| |
| #include <pthread.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <stdarg.h> |
| #include <netdb.h> |
| #include <netinet/in.h> |
| #include <netinet/tcp.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <string> |
| |
| #define OS_PATH_SEPARATORS "/" |
| #define OS_PATH_SEPARATOR '/' |
| #define OS_PATH_SEPARATOR_STR "/" |
| #define ENV_PATH_SEPARATOR_STR ":" |
| |
| static __inline__ bool adb_is_separator(char c) { |
| return c == '/'; |
| } |
| |
| typedef pthread_mutex_t adb_mutex_t; |
| |
| #define ADB_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER |
| #define adb_mutex_init pthread_mutex_init |
| #define adb_mutex_lock pthread_mutex_lock |
| #define adb_mutex_unlock pthread_mutex_unlock |
| #define adb_mutex_destroy pthread_mutex_destroy |
| |
| #define ADB_MUTEX_DEFINE(m) adb_mutex_t m = PTHREAD_MUTEX_INITIALIZER |
| |
| #define adb_cond_t pthread_cond_t |
| #define adb_cond_init pthread_cond_init |
| #define adb_cond_wait pthread_cond_wait |
| #define adb_cond_broadcast pthread_cond_broadcast |
| #define adb_cond_signal pthread_cond_signal |
| #define adb_cond_destroy pthread_cond_destroy |
| |
| /* declare all mutexes */ |
| #define ADB_MUTEX(x) extern adb_mutex_t x; |
| #include "mutex_list.h" |
| |
| static __inline__ void close_on_exec(int fd) |
| { |
| fcntl( fd, F_SETFD, FD_CLOEXEC ); |
| } |
| |
| // Open a file and return a file descriptor that may be used with unix_read(), |
| // unix_write(), unix_close(), but not adb_read(), adb_write(), adb_close(). |
| // |
| // On Unix, this is based on open(), so the file descriptor is a real OS file |
| // descriptor, but the Windows implementation (in sysdeps_win32.cpp) returns a |
| // file descriptor that can only be used with C Runtime APIs (which are wrapped |
| // by unix_read(), unix_write(), unix_close()). Also, the C Runtime has |
| // configurable CR/LF translation which defaults to text mode, but is settable |
| // with _setmode(). |
| static __inline__ int unix_open(const char* path, int options,...) |
| { |
| if ((options & O_CREAT) == 0) |
| { |
| return TEMP_FAILURE_RETRY( open(path, options) ); |
| } |
| else |
| { |
| int mode; |
| va_list args; |
| va_start( args, options ); |
| mode = va_arg( args, int ); |
| va_end( args ); |
| return TEMP_FAILURE_RETRY( open( path, options, mode ) ); |
| } |
| } |
| |
| // Similar to the two-argument adb_open(), but takes a mode parameter for file |
| // creation. See adb_open() for more info. |
| static __inline__ int adb_open_mode( const char* pathname, int options, int mode ) |
| { |
| return TEMP_FAILURE_RETRY( open( pathname, options, mode ) ); |
| } |
| |
| |
| // Open a file and return a file descriptor that may be used with adb_read(), |
| // adb_write(), adb_close(), but not unix_read(), unix_write(), unix_close(). |
| // |
| // On Unix, this is based on open(), but the Windows implementation (in |
| // sysdeps_win32.cpp) uses Windows native file I/O and bypasses the C Runtime |
| // and its CR/LF translation. The returned file descriptor should be used with |
| // adb_read(), adb_write(), adb_close(), etc. |
| static __inline__ int adb_open( const char* pathname, int options ) |
| { |
| int fd = TEMP_FAILURE_RETRY( open( pathname, options ) ); |
| if (fd < 0) |
| return -1; |
| close_on_exec( fd ); |
| return fd; |
| } |
| #undef open |
| #define open ___xxx_open |
| |
| static __inline__ int adb_shutdown(int fd) |
| { |
| return shutdown(fd, SHUT_RDWR); |
| } |
| static __inline__ int adb_shutdown(int fd, int direction) |
| { |
| return shutdown(fd, direction); |
| } |
| #undef shutdown |
| #define shutdown ____xxx_shutdown |
| |
| // Closes a file descriptor that came from adb_open() or adb_open_mode(), but |
| // not designed to take a file descriptor from unix_open(). See the comments |
| // for adb_open() for more info. |
| __inline__ int adb_close(int fd) { |
| return close(fd); |
| } |
| #undef close |
| #define close ____xxx_close |
| |
| |
| static __inline__ int adb_read(int fd, void* buf, size_t len) |
| { |
| return TEMP_FAILURE_RETRY( read( fd, buf, len ) ); |
| } |
| |
| // Like unix_read(), but does not handle EINTR. |
| static __inline__ int unix_read_interruptible(int fd, void* buf, size_t len) { |
| return read(fd, buf, len); |
| } |
| |
| #undef read |
| #define read ___xxx_read |
| |
| static __inline__ int adb_write(int fd, const void* buf, size_t len) |
| { |
| return TEMP_FAILURE_RETRY( write( fd, buf, len ) ); |
| } |
| #undef write |
| #define write ___xxx_write |
| |
| static __inline__ int adb_lseek(int fd, int pos, int where) |
| { |
| return lseek(fd, pos, where); |
| } |
| #undef lseek |
| #define lseek ___xxx_lseek |
| |
| static __inline__ int adb_unlink(const char* path) |
| { |
| return unlink(path); |
| } |
| #undef unlink |
| #define unlink ___xxx_unlink |
| |
| static __inline__ int adb_creat(const char* path, int mode) |
| { |
| int fd = TEMP_FAILURE_RETRY( creat( path, mode ) ); |
| |
| if ( fd < 0 ) |
| return -1; |
| |
| close_on_exec(fd); |
| return fd; |
| } |
| #undef creat |
| #define creat ___xxx_creat |
| |
| static __inline__ int unix_isatty(int fd) { |
| return isatty(fd); |
| } |
| #define isatty ___xxx_isatty |
| |
| // Helper for network_* functions. |
| inline int _fd_set_error_str(int fd, std::string* error) { |
| if (fd == -1) { |
| *error = strerror(errno); |
| } |
| return fd; |
| } |
| |
| inline int network_loopback_client(int port, int type, std::string* error) { |
| return _fd_set_error_str(socket_loopback_client(port, type), error); |
| } |
| |
| inline int network_loopback_server(int port, int type, std::string* error) { |
| return _fd_set_error_str(socket_loopback_server(port, type), error); |
| } |
| |
| inline int network_inaddr_any_server(int port, int type, std::string* error) { |
| return _fd_set_error_str(socket_inaddr_any_server(port, type), error); |
| } |
| |
| inline int network_local_server(const char *name, int namespace_id, int type, |
| std::string* error) { |
| return _fd_set_error_str(socket_local_server(name, namespace_id, type), |
| error); |
| } |
| |
| inline int network_connect(const std::string& host, int port, int type, |
| int timeout, std::string* error) { |
| int getaddrinfo_error = 0; |
| int fd = socket_network_client_timeout(host.c_str(), port, type, timeout, |
| &getaddrinfo_error); |
| if (fd != -1) { |
| return fd; |
| } |
| if (getaddrinfo_error != 0) { |
| *error = gai_strerror(getaddrinfo_error); |
| } else { |
| *error = strerror(errno); |
| } |
| return -1; |
| } |
| |
| static __inline__ int adb_socket_accept(int serverfd, struct sockaddr* addr, socklen_t *addrlen) |
| { |
| int fd; |
| |
| fd = TEMP_FAILURE_RETRY( accept( serverfd, addr, addrlen ) ); |
| if (fd >= 0) |
| close_on_exec(fd); |
| |
| return fd; |
| } |
| |
| #undef accept |
| #define accept ___xxx_accept |
| |
| inline int adb_socket_get_local_port(int fd) { |
| return socket_get_local_port(fd); |
| } |
| |
| // Operate on a file descriptor returned from unix_open() or a well-known file |
| // descriptor such as STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO. |
| // |
| // On Unix, unix_read(), unix_write(), unix_close() map to adb_read(), |
| // adb_write(), adb_close() (which all map to Unix system calls), but the |
| // Windows implementations (in the ifdef above and in sysdeps_win32.cpp) call |
| // into the C Runtime and its configurable CR/LF translation (which is settable |
| // via _setmode()). |
| #define unix_read adb_read |
| #define unix_write adb_write |
| #define unix_close adb_close |
| |
| // Win32 is limited to DWORDs for thread return values; limit the POSIX systems to this as well to |
| // ensure compatibility. |
| typedef void (*adb_thread_func_t)(void* arg); |
| typedef pthread_t adb_thread_t; |
| |
| struct adb_pthread_args { |
| adb_thread_func_t func; |
| void* arg; |
| }; |
| |
| static void* adb_pthread_wrapper(void* heap_args) { |
| // Move the arguments from the heap onto the thread's stack. |
| adb_pthread_args thread_args = *reinterpret_cast<adb_pthread_args*>(heap_args); |
| delete static_cast<adb_pthread_args*>(heap_args); |
| thread_args.func(thread_args.arg); |
| return nullptr; |
| } |
| |
| static __inline__ bool adb_thread_create(adb_thread_func_t start, void* arg, |
| adb_thread_t* thread = nullptr) { |
| pthread_t temp; |
| pthread_attr_t attr; |
| pthread_attr_init(&attr); |
| pthread_attr_setdetachstate(&attr, thread ? PTHREAD_CREATE_JOINABLE : PTHREAD_CREATE_DETACHED); |
| auto* pthread_args = new adb_pthread_args{.func = start, .arg = arg}; |
| errno = pthread_create(&temp, &attr, adb_pthread_wrapper, pthread_args); |
| if (errno == 0) { |
| if (thread) { |
| *thread = temp; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| static __inline__ bool adb_thread_join(adb_thread_t thread) { |
| errno = pthread_join(thread, nullptr); |
| return errno == 0; |
| } |
| |
| static __inline__ bool adb_thread_detach(adb_thread_t thread) { |
| errno = pthread_detach(thread); |
| return errno == 0; |
| } |
| |
| static __inline__ void __attribute__((noreturn)) adb_thread_exit() { |
| pthread_exit(nullptr); |
| } |
| |
| static __inline__ int adb_thread_setname(const std::string& name) { |
| #ifdef __APPLE__ |
| return pthread_setname_np(name.c_str()); |
| #else |
| const char *s = name.c_str(); |
| |
| // pthread_setname_np fails rather than truncating long strings. |
| const int max_task_comm_len = 16; // including the null terminator |
| if (name.length() > (max_task_comm_len - 1)) { |
| char buf[max_task_comm_len]; |
| strncpy(buf, name.c_str(), sizeof(buf) - 1); |
| buf[sizeof(buf) - 1] = '\0'; |
| s = buf; |
| } |
| |
| return pthread_setname_np(pthread_self(), s) ; |
| #endif |
| } |
| |
| static __inline__ int adb_setsockopt( int fd, int level, int optname, const void* optval, socklen_t optlen ) |
| { |
| return setsockopt( fd, level, optname, optval, optlen ); |
| } |
| |
| #undef setsockopt |
| #define setsockopt ___xxx_setsockopt |
| |
| static __inline__ int unix_socketpair( int d, int type, int protocol, int sv[2] ) |
| { |
| return socketpair( d, type, protocol, sv ); |
| } |
| |
| static __inline__ int adb_socketpair( int sv[2] ) |
| { |
| int rc; |
| |
| rc = unix_socketpair( AF_UNIX, SOCK_STREAM, 0, sv ); |
| if (rc < 0) |
| return -1; |
| |
| close_on_exec( sv[0] ); |
| close_on_exec( sv[1] ); |
| return 0; |
| } |
| |
| #undef socketpair |
| #define socketpair ___xxx_socketpair |
| |
| typedef struct pollfd adb_pollfd; |
| static __inline__ int adb_poll(adb_pollfd* fds, size_t nfds, int timeout) { |
| return TEMP_FAILURE_RETRY(poll(fds, nfds, timeout)); |
| } |
| |
| #define poll ___xxx_poll |
| |
| static __inline__ void adb_sleep_ms( int mseconds ) |
| { |
| usleep( mseconds*1000 ); |
| } |
| |
| static __inline__ int adb_mkdir(const std::string& path, int mode) |
| { |
| return mkdir(path.c_str(), mode); |
| } |
| |
| #undef mkdir |
| #define mkdir ___xxx_mkdir |
| |
| static __inline__ void adb_sysdeps_init(void) |
| { |
| } |
| |
| static __inline__ int adb_is_absolute_host_path(const char* path) { |
| return path[0] == '/'; |
| } |
| |
| static __inline__ unsigned long adb_thread_id() |
| { |
| return (unsigned long)gettid(); |
| } |
| |
| #endif /* !_WIN32 */ |
| |
| static inline void disable_tcp_nagle(int fd) { |
| int off = 1; |
| adb_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &off, sizeof(off)); |
| } |
| |
| // Sets TCP socket |fd| to send a keepalive TCP message every |interval_sec| seconds. Set |
| // |interval_sec| to 0 to disable keepalives. If keepalives are enabled, the connection will be |
| // configured to drop after 10 missed keepalives. Returns true on success. |
| bool set_tcp_keepalive(int fd, int interval_sec); |
| |
| #endif /* _ADB_SYSDEPS_H */ |