#ifndef _UNISTD_H #define _UNISTD_H #ifdef __cplusplus extern "C" { #endif #include #define STDIN_FILENO 0 #define STDOUT_FILENO 1 #define STDERR_FILENO 2 #ifdef __wasilibc_unmodified_upstream /* Use alternate WASI libc headers */ #define SEEK_SET 0 #define SEEK_CUR 1 #define SEEK_END 2 #define SEEK_DATA 3 #define SEEK_HOLE 4 #else #include <__header_unistd.h> #endif #ifdef __wasilibc_unmodified_upstream /* Use the compiler's definition of NULL */ #if __cplusplus >= 201103L #define NULL nullptr #elif defined(__cplusplus) #define NULL 0L #else #define NULL ((void*)0) #endif #else #define __need_NULL #include #endif #define __NEED_size_t #define __NEED_ssize_t #define __NEED_uid_t #define __NEED_gid_t #define __NEED_off_t #define __NEED_pid_t #define __NEED_intptr_t #define __NEED_useconds_t #include #ifdef __wasilibc_unmodified_upstream /* WASI has no pipe */ int pipe(int [2]); int pipe2(int [2], int); #endif int close(int); int posix_close(int, int); #ifdef __wasilibc_unmodified_upstream /* WASI has no dup */ int dup(int); int dup2(int, int); int dup3(int, int, int); #endif off_t lseek(int, off_t, int); #ifdef __wasilibc_unmodified_upstream /* Optimize the readonly case of lseek */ #else off_t __wasilibc_tell(int); #ifndef __cplusplus /* * Optimize lseek in the case where it's just returning the current offset. * This avoids importing `__wasi_fd_seek` altogether in many common cases. * * But don't do this for C++ because a simple macro wouldn't handle namespaces * correctly: * - User code could qualify the `lseek` call with `::`. * - There may be another `lseek` in scope from a `using` declaration. */ #define lseek(fd, offset, whence) \ ({ \ off_t __f = (fd); \ off_t __o = (offset); \ off_t __w = (whence); \ __builtin_constant_p((offset)) && \ __builtin_constant_p((whence)) && \ __o == 0 && \ __w == SEEK_CUR \ ? __wasilibc_tell(__f) \ : lseek(__f, __o, __w); \ }) #endif #endif int fsync(int); int fdatasync(int); ssize_t read(int, void *, size_t); ssize_t write(int, const void *, size_t); ssize_t pread(int, void *, size_t, off_t); ssize_t pwrite(int, const void *, size_t, off_t); #ifdef __wasilibc_unmodified_upstream /* WASI has no chown */ int chown(const char *, uid_t, gid_t); int fchown(int, uid_t, gid_t); int lchown(const char *, uid_t, gid_t); int fchownat(int, const char *, uid_t, gid_t, int); #endif int link(const char *, const char *); int linkat(int, const char *, int, const char *, int); int symlink(const char *, const char *); int symlinkat(const char *, int, const char *); ssize_t readlink(const char *__restrict, char *__restrict, size_t); ssize_t readlinkat(int, const char *__restrict, char *__restrict, size_t); int unlink(const char *); int unlinkat(int, const char *, int); int rmdir(const char *); int truncate(const char *, off_t); int ftruncate(int, off_t); #ifdef __wasilibc_unmodified_upstream /* Use alternate WASI libc headers */ #define F_OK 0 #define R_OK 4 #define W_OK 2 #define X_OK 1 #endif int access(const char *, int); int faccessat(int, const char *, int, int); #ifdef __wasilibc_unmodified_upstream /* WASI has no fchdir */ int fchdir(int); #endif int chdir(const char *); char *getcwd(char *, size_t); #ifdef __wasilibc_unmodified_upstream /* WASI has no signals */ unsigned alarm(unsigned); #endif unsigned sleep(unsigned); #ifdef __wasilibc_unmodified_upstream /* WASI has no pause */ int pause(void); #endif #ifdef __wasilibc_unmodified_upstream /* WASI has no fork/exec */ pid_t fork(void); pid_t _Fork(void); int execve(const char *, char *const [], char *const []); int execv(const char *, char *const []); int execle(const char *, const char *, ...); int execl(const char *, const char *, ...); int execvp(const char *, char *const []); int execlp(const char *, const char *, ...); int fexecve(int, char *const [], char *const []); #endif _Noreturn void _exit(int); #if defined(__wasilibc_unmodified_upstream) || defined(_WASI_EMULATED_GETPID) pid_t getpid(void); #else __attribute__((__deprecated__( "WASI lacks process identifiers; to enable emulation of the `getpid` function using " "a placeholder value, which doesn't reflect the host PID of the program, " "compile with -D_WASI_EMULATED_GETPID and link with -lwasi-emulated-getpid" ))) pid_t getpid(void); #endif #ifdef __wasilibc_unmodified_upstream /* WASI has no getpid etc. */ pid_t getppid(void); pid_t getpgrp(void); pid_t getpgid(pid_t); int setpgid(pid_t, pid_t); pid_t setsid(void); pid_t getsid(pid_t); #endif #ifdef __wasilibc_unmodified_upstream /* WASI has no ttyname */ char *ttyname(int); int ttyname_r(int, char *, size_t); #endif int isatty(int); #ifdef __wasilibc_unmodified_upstream /* WASI has no process groups */ pid_t tcgetpgrp(int); int tcsetpgrp(int, pid_t); #endif #ifdef __wasilibc_unmodified_upstream /* WASI has no getuid etc. */ uid_t getuid(void); uid_t geteuid(void); gid_t getgid(void); gid_t getegid(void); int getgroups(int, gid_t []); int setuid(uid_t); int seteuid(uid_t); int setgid(gid_t); int setegid(gid_t); #endif char *getlogin(void); int getlogin_r(char *, size_t); int gethostname(char *, size_t); char *ctermid(char *); int getopt(int, char * const [], const char *); extern char *optarg; extern int optind, opterr, optopt; long pathconf(const char *, int); long fpathconf(int, int); long sysconf(int); size_t confstr(int, char *, size_t); #if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) #define F_ULOCK 0 #define F_LOCK 1 #define F_TLOCK 2 #define F_TEST 3 #ifdef __wasilibc_unmodified_upstream /* WASI has no setreuid */ int setreuid(uid_t, uid_t); int setregid(gid_t, gid_t); #endif #ifdef __wasilibc_unmodified_upstream /* WASI has no POSIX file locking */ int lockf(int, int, off_t); #endif long gethostid(void); #ifdef __wasilibc_unmodified_upstream /* WASI has no nice, sync, or setpgrp */ int nice(int); void sync(void); pid_t setpgrp(void); #endif char *crypt(const char *, const char *); void encrypt(char *, int); void swab(const void *__restrict, void *__restrict, ssize_t); #endif #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \ || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700) int usleep(unsigned); unsigned ualarm(unsigned, unsigned); #endif #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) #define L_SET 0 #define L_INCR 1 #define L_XTND 2 #ifdef __wasilibc_unmodified_upstream /* WASI has no brk */ int brk(void *); #endif void *sbrk(intptr_t); #ifdef __wasilibc_unmodified_upstream /* WASI has no processes */ pid_t vfork(void); int vhangup(void); int chroot(const char *); #endif int getpagesize(void); #ifdef __wasilibc_unmodified_upstream /* WASI has no processes */ int getdtablesize(void); int sethostname(const char *, size_t); int getdomainname(char *, size_t); int setdomainname(const char *, size_t); int setgroups(size_t, const gid_t *); char *getpass(const char *); int daemon(int, int); void setusershell(void); void endusershell(void); char *getusershell(void); int acct(const char *); long syscall(long, ...); int execvpe(const char *, char *const [], char *const []); int issetugid(void); #endif int getentropy(void *, size_t); extern int optreset; #endif #ifdef _GNU_SOURCE extern char **environ; #ifdef __wasilibc_unmodified_upstream /* WASI has no get/setresuid */ int setresuid(uid_t, uid_t, uid_t); int setresgid(gid_t, gid_t, gid_t); int getresuid(uid_t *, uid_t *, uid_t *); int getresgid(gid_t *, gid_t *, gid_t *); #endif #ifdef __wasilibc_unmodified_upstream /* WASI has no cwd */ char *get_current_dir_name(void); #endif #ifdef __wasilibc_unmodified_upstream /* WASI has no syncfs */ int syncfs(int); #endif #ifdef __wasilibc_unmodified_upstream /* WASI has no eaccess */ int euidaccess(const char *, int); int eaccess(const char *, int); ssize_t copy_file_range(int, off_t *, int, off_t *, size_t, unsigned); pid_t gettid(void); #endif #endif #if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE) #define lseek64 lseek #define pread64 pread #define pwrite64 pwrite #ifdef __wasilibc_unmodified_upstream /* WASI has no truncate */ #define truncate64 truncate #endif #define ftruncate64 ftruncate #ifdef __wasilibc_unmodified_upstream /* WASI has no POSIX file locking */ #define lockf64 lockf #endif #define off64_t off_t #endif #define POSIX_CLOSE_RESTART 0 #define _XOPEN_VERSION 700 #define _XOPEN_UNIX 1 #define _XOPEN_ENH_I18N 1 #define _POSIX_VERSION 200809L #define _POSIX2_VERSION _POSIX_VERSION #define _POSIX_ADVISORY_INFO _POSIX_VERSION #define _POSIX_CHOWN_RESTRICTED 1 #define _POSIX_IPV6 _POSIX_VERSION #ifdef __wasilibc_unmodified_upstream /* WASI has no processes, mmap, or mq */ #define _POSIX_JOB_CONTROL 1 #define _POSIX_MAPPED_FILES _POSIX_VERSION #define _POSIX_MEMLOCK _POSIX_VERSION #define _POSIX_MEMLOCK_RANGE _POSIX_VERSION #define _POSIX_MEMORY_PROTECTION _POSIX_VERSION #define _POSIX_MESSAGE_PASSING _POSIX_VERSION #endif #define _POSIX_FSYNC _POSIX_VERSION #define _POSIX_NO_TRUNC 1 #ifdef __wasilibc_unmodified_upstream /* WASI has no raw sockets */ #define _POSIX_RAW_SOCKETS _POSIX_VERSION #endif #define _POSIX_REALTIME_SIGNALS _POSIX_VERSION #define _POSIX_REGEXP 1 #ifdef __wasilibc_unmodified_upstream /* WASI has no processes */ #define _POSIX_SAVED_IDS 1 #define _POSIX_SHELL 1 #define _POSIX_SPAWN _POSIX_VERSION #endif #define _POSIX_VDISABLE 0 #if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT) #define _POSIX_THREADS _POSIX_VERSION #endif #define _POSIX_THREAD_PROCESS_SHARED _POSIX_VERSION #define _POSIX_THREAD_SAFE_FUNCTIONS _POSIX_VERSION #define _POSIX_THREAD_ATTR_STACKADDR _POSIX_VERSION #define _POSIX_THREAD_ATTR_STACKSIZE _POSIX_VERSION #define _POSIX_THREAD_PRIORITY_SCHEDULING _POSIX_VERSION #define _POSIX_THREAD_CPUTIME _POSIX_VERSION #define _POSIX_TIMERS _POSIX_VERSION #define _POSIX_TIMEOUTS _POSIX_VERSION #define _POSIX_MONOTONIC_CLOCK _POSIX_VERSION #define _POSIX_CPUTIME _POSIX_VERSION #define _POSIX_CLOCK_SELECTION _POSIX_VERSION #define _POSIX_BARRIERS _POSIX_VERSION #define _POSIX_SPIN_LOCKS _POSIX_VERSION #define _POSIX_READER_WRITER_LOCKS _POSIX_VERSION #ifdef __wasilibc_unmodified_upstream /* WASI has no POSIX async I/O, semaphores, or shared memory */ #define _POSIX_ASYNCHRONOUS_IO _POSIX_VERSION #define _POSIX_SEMAPHORES _POSIX_VERSION #define _POSIX_SHARED_MEMORY_OBJECTS _POSIX_VERSION #endif #define _POSIX2_C_BIND _POSIX_VERSION #include #define _PC_LINK_MAX 0 #define _PC_MAX_CANON 1 #define _PC_MAX_INPUT 2 #define _PC_NAME_MAX 3 #define _PC_PATH_MAX 4 #define _PC_PIPE_BUF 5 #define _PC_CHOWN_RESTRICTED 6 #define _PC_NO_TRUNC 7 #define _PC_VDISABLE 8 #define _PC_SYNC_IO 9 #define _PC_ASYNC_IO 10 #define _PC_PRIO_IO 11 #define _PC_SOCK_MAXBUF 12 #define _PC_FILESIZEBITS 13 #define _PC_REC_INCR_XFER_SIZE 14 #define _PC_REC_MAX_XFER_SIZE 15 #define _PC_REC_MIN_XFER_SIZE 16 #define _PC_REC_XFER_ALIGN 17 #define _PC_ALLOC_SIZE_MIN 18 #define _PC_SYMLINK_MAX 19 #define _PC_2_SYMLINKS 20 #define _SC_ARG_MAX 0 #define _SC_CHILD_MAX 1 #define _SC_CLK_TCK 2 #define _SC_NGROUPS_MAX 3 #define _SC_OPEN_MAX 4 #define _SC_STREAM_MAX 5 #define _SC_TZNAME_MAX 6 #define _SC_JOB_CONTROL 7 #define _SC_SAVED_IDS 8 #define _SC_REALTIME_SIGNALS 9 #define _SC_PRIORITY_SCHEDULING 10 #define _SC_TIMERS 11 #define _SC_ASYNCHRONOUS_IO 12 #define _SC_PRIORITIZED_IO 13 #define _SC_SYNCHRONIZED_IO 14 #define _SC_FSYNC 15 #define _SC_MAPPED_FILES 16 #define _SC_MEMLOCK 17 #define _SC_MEMLOCK_RANGE 18 #define _SC_MEMORY_PROTECTION 19 #define _SC_MESSAGE_PASSING 20 #define _SC_SEMAPHORES 21 #define _SC_SHARED_MEMORY_OBJECTS 22 #define _SC_AIO_LISTIO_MAX 23 #define _SC_AIO_MAX 24 #define _SC_AIO_PRIO_DELTA_MAX 25 #define _SC_DELAYTIMER_MAX 26 #define _SC_MQ_OPEN_MAX 27 #define _SC_MQ_PRIO_MAX 28 #define _SC_VERSION 29 #define _SC_PAGE_SIZE 30 #define _SC_PAGESIZE 30 /* !! */ #define _SC_RTSIG_MAX 31 #define _SC_SEM_NSEMS_MAX 32 #define _SC_SEM_VALUE_MAX 33 #define _SC_SIGQUEUE_MAX 34 #define _SC_TIMER_MAX 35 #define _SC_BC_BASE_MAX 36 #define _SC_BC_DIM_MAX 37 #define _SC_BC_SCALE_MAX 38 #define _SC_BC_STRING_MAX 39 #define _SC_COLL_WEIGHTS_MAX 40 #define _SC_EXPR_NEST_MAX 42 #define _SC_LINE_MAX 43 #define _SC_RE_DUP_MAX 44 #define _SC_2_VERSION 46 #define _SC_2_C_BIND 47 #define _SC_2_C_DEV 48 #define _SC_2_FORT_DEV 49 #define _SC_2_FORT_RUN 50 #define _SC_2_SW_DEV 51 #define _SC_2_LOCALEDEF 52 #define _SC_UIO_MAXIOV 60 /* !! */ #define _SC_IOV_MAX 60 #define _SC_THREADS 67 #define _SC_THREAD_SAFE_FUNCTIONS 68 #define _SC_GETGR_R_SIZE_MAX 69 #define _SC_GETPW_R_SIZE_MAX 70 #define _SC_LOGIN_NAME_MAX 71 #define _SC_TTY_NAME_MAX 72 #define _SC_THREAD_DESTRUCTOR_ITERATIONS 73 #define _SC_THREAD_KEYS_MAX 74 #define _SC_THREAD_STACK_MIN 75 #define _SC_THREAD_THREADS_MAX 76 #define _SC_THREAD_ATTR_STACKADDR 77 #define _SC_THREAD_ATTR_STACKSIZE 78 #define _SC_THREAD_PRIORITY_SCHEDULING 79 #define _SC_THREAD_PRIO_INHERIT 80 #define _SC_THREAD_PRIO_PROTECT 81 #define _SC_THREAD_PROCESS_SHARED 82 #define _SC_NPROCESSORS_CONF 83 #define _SC_NPROCESSORS_ONLN 84 #define _SC_PHYS_PAGES 85 #define _SC_AVPHYS_PAGES 86 #define _SC_ATEXIT_MAX 87 #define _SC_PASS_MAX 88 #define _SC_XOPEN_VERSION 89 #define _SC_XOPEN_XCU_VERSION 90 #define _SC_XOPEN_UNIX 91 #define _SC_XOPEN_CRYPT 92 #define _SC_XOPEN_ENH_I18N 93 #define _SC_XOPEN_SHM 94 #define _SC_2_CHAR_TERM 95 #define _SC_2_UPE 97 #define _SC_XOPEN_XPG2 98 #define _SC_XOPEN_XPG3 99 #define _SC_XOPEN_XPG4 100 #define _SC_NZERO 109 #define _SC_XBS5_ILP32_OFF32 125 #define _SC_XBS5_ILP32_OFFBIG 126 #define _SC_XBS5_LP64_OFF64 127 #define _SC_XBS5_LPBIG_OFFBIG 128 #define _SC_XOPEN_LEGACY 129 #define _SC_XOPEN_REALTIME 130 #define _SC_XOPEN_REALTIME_THREADS 131 #define _SC_ADVISORY_INFO 132 #define _SC_BARRIERS 133 #define _SC_CLOCK_SELECTION 137 #define _SC_CPUTIME 138 #define _SC_THREAD_CPUTIME 139 #define _SC_MONOTONIC_CLOCK 149 #define _SC_READER_WRITER_LOCKS 153 #define _SC_SPIN_LOCKS 154 #define _SC_REGEXP 155 #define _SC_SHELL 157 #define _SC_SPAWN 159 #define _SC_SPORADIC_SERVER 160 #define _SC_THREAD_SPORADIC_SERVER 161 #define _SC_TIMEOUTS 164 #define _SC_TYPED_MEMORY_OBJECTS 165 #define _SC_2_PBS 168 #define _SC_2_PBS_ACCOUNTING 169 #define _SC_2_PBS_LOCATE 170 #define _SC_2_PBS_MESSAGE 171 #define _SC_2_PBS_TRACK 172 #define _SC_SYMLOOP_MAX 173 #define _SC_STREAMS 174 #define _SC_2_PBS_CHECKPOINT 175 #define _SC_V6_ILP32_OFF32 176 #define _SC_V6_ILP32_OFFBIG 177 #define _SC_V6_LP64_OFF64 178 #define _SC_V6_LPBIG_OFFBIG 179 #define _SC_HOST_NAME_MAX 180 #define _SC_TRACE 181 #define _SC_TRACE_EVENT_FILTER 182 #define _SC_TRACE_INHERIT 183 #define _SC_TRACE_LOG 184 #define _SC_IPV6 235 #define _SC_RAW_SOCKETS 236 #define _SC_V7_ILP32_OFF32 237 #define _SC_V7_ILP32_OFFBIG 238 #define _SC_V7_LP64_OFF64 239 #define _SC_V7_LPBIG_OFFBIG 240 #define _SC_SS_REPL_MAX 241 #define _SC_TRACE_EVENT_NAME_MAX 242 #define _SC_TRACE_NAME_MAX 243 #define _SC_TRACE_SYS_MAX 244 #define _SC_TRACE_USER_EVENT_MAX 245 #define _SC_XOPEN_STREAMS 246 #define _SC_THREAD_ROBUST_PRIO_INHERIT 247 #define _SC_THREAD_ROBUST_PRIO_PROTECT 248 #define _CS_PATH 0 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 1 #define _CS_GNU_LIBC_VERSION 2 #define _CS_GNU_LIBPTHREAD_VERSION 3 #define _CS_POSIX_V5_WIDTH_RESTRICTED_ENVS 4 #define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 5 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 1116 #define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 1117 #define _CS_POSIX_V6_ILP32_OFF32_LIBS 1118 #define _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS 1119 #define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 1120 #define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 1121 #define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 1122 #define _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS 1123 #define _CS_POSIX_V6_LP64_OFF64_CFLAGS 1124 #define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 1125 #define _CS_POSIX_V6_LP64_OFF64_LIBS 1126 #define _CS_POSIX_V6_LP64_OFF64_LINTFLAGS 1127 #define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 1128 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 1129 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 1130 #define _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS 1131 #define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 1132 #define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 1133 #define _CS_POSIX_V7_ILP32_OFF32_LIBS 1134 #define _CS_POSIX_V7_ILP32_OFF32_LINTFLAGS 1135 #define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 1136 #define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 1137 #define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 1138 #define _CS_POSIX_V7_ILP32_OFFBIG_LINTFLAGS 1139 #define _CS_POSIX_V7_LP64_OFF64_CFLAGS 1140 #define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 1141 #define _CS_POSIX_V7_LP64_OFF64_LIBS 1142 #define _CS_POSIX_V7_LP64_OFF64_LINTFLAGS 1143 #define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 1144 #define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 1145 #define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 1146 #define _CS_POSIX_V7_LPBIG_OFFBIG_LINTFLAGS 1147 #define _CS_V6_ENV 1148 #define _CS_V7_ENV 1149 #ifdef __cplusplus } #endif #endif