+// defined in rts/RtsStartup.c.
+extern void* __hscore_get_saved_termios(int fd);
+extern void __hscore_set_saved_termios(int fd, void* ts);
+
+INLINE int __hscore_hs_fileno (FILE *f) { return fileno (f); }
+
+#if !defined(mingw32_HOST_OS) && !defined(_MSC_VER)
+INLINE int __hsposix_SIGABRT() { return SIGABRT; }
+INLINE int __hsposix_SIGALRM() { return SIGALRM; }
+INLINE int __hsposix_SIGBUS() { return SIGBUS; }
+INLINE int __hsposix_SIGCHLD() { return SIGCHLD; }
+INLINE int __hsposix_SIGCONT() { return SIGCONT; }
+INLINE int __hsposix_SIGFPE() { return SIGFPE; }
+INLINE int __hsposix_SIGHUP() { return SIGHUP; }
+INLINE int __hsposix_SIGILL() { return SIGILL; }
+INLINE int __hsposix_SIGINT() { return SIGINT; }
+INLINE int __hsposix_SIGKILL() { return SIGKILL; }
+INLINE int __hsposix_SIGPIPE() { return SIGPIPE; }
+INLINE int __hsposix_SIGQUIT() { return SIGQUIT; }
+INLINE int __hsposix_SIGSEGV() { return SIGSEGV; }
+INLINE int __hsposix_SIGSTOP() { return SIGSTOP; }
+INLINE int __hsposix_SIGTERM() { return SIGTERM; }
+INLINE int __hsposix_SIGTSTP() { return SIGTSTP; }
+INLINE int __hsposix_SIGTTIN() { return SIGTTIN; }
+INLINE int __hsposix_SIGTTOU() { return SIGTTOU; }
+INLINE int __hsposix_SIGUSR1() { return SIGUSR1; }
+INLINE int __hsposix_SIGUSR2() { return SIGUSR2; }
+#ifdef SIGPOLL
+INLINE int __hsposix_SIGPOLL() { return SIGPOLL; }
+#endif
+INLINE int __hsposix_SIGPROF() { return SIGPROF; }
+INLINE int __hsposix_SIGSYS() { return SIGSYS; }
+INLINE int __hsposix_SIGTRAP() { return SIGTRAP; }
+INLINE int __hsposix_SIGURG() { return SIGURG; }
+INLINE int __hsposix_SIGVTALRM() { return SIGVTALRM; }
+INLINE int __hsposix_SIGXCPU() { return SIGXCPU; }
+INLINE int __hsposix_SIGXFSZ() { return SIGXFSZ; }
+
+INLINE int __hsposix_SIG_BLOCK() { return SIG_BLOCK; }
+INLINE int __hsposix_SIG_UNBLOCK() { return SIG_UNBLOCK; }
+INLINE int __hsposix_SIG_SETMASK() { return SIG_SETMASK; }
+
+#endif /* mingw32_HOST_OS */
+
+INLINE int __hscore_open(char *file, int how, mode_t mode) {
+#ifdef mingw32_HOST_OS
+ if ((how & O_WRONLY) || (how & O_RDWR) || (how & O_APPEND))
+ return _sopen(file,how,_SH_DENYRW,mode);
+ else
+ return _sopen(file,how,_SH_DENYWR,mode);
+#else
+ return open(file,how,mode);
+#endif
+}
+
+// These are wrapped because on some OSs (eg. Linux) they are
+// macros which redirect to the 64-bit-off_t versions when large file
+// support is enabled.
+//
+INLINE off_t __hscore_lseek(int fd, off_t off, int whence) {
+ return (lseek(fd,off,whence));
+}
+
+INLINE int __hscore_stat(char *file, struct stat *buf) {
+ return (stat(file,buf));
+}
+
+INLINE int __hscore_fstat(int fd, struct stat *buf) {
+ return (fstat(fd,buf));
+}
+
+// select-related stuff
+
+#if !defined(mingw32_HOST_OS)
+INLINE void hsFD_CLR(int fd, fd_set *fds) { FD_CLR(fd, fds); }
+INLINE int hsFD_ISSET(int fd, fd_set *fds) { return FD_ISSET(fd, fds); }
+INLINE void hsFD_SET(int fd, fd_set *fds) { FD_SET(fd, fds); }
+INLINE int sizeof_fd_set(void) { return sizeof(fd_set); }
+extern void hsFD_ZERO(fd_set *fds);
+#endif
+
+// gettimeofday()-related
+
+#if !defined(mingw32_HOST_OS)
+#define TICK_FREQ 50
+
+INLINE HsInt sizeofTimeVal(void) { return sizeof(struct timeval); }
+
+INLINE HsInt getTicksOfDay(void)
+{
+ struct timeval tv;
+ gettimeofday(&tv, (struct timezone *) NULL);
+ return (tv.tv_sec * TICK_FREQ +
+ tv.tv_usec * TICK_FREQ / 1000000);
+}
+
+INLINE void setTimevalTicks(struct timeval *p, HsInt ticks)
+{
+ p->tv_sec = ticks / TICK_FREQ;
+ p->tv_usec = (ticks % TICK_FREQ) * (1000000 / TICK_FREQ);
+}
+#endif // !defined(mingw32_HOST_OS)
+
+// Directory-related
+
+#if defined(mingw32_HOST_OS)
+
+/* Make sure we've got the reqd CSIDL_ constants in scope;
+ * w32api header files are lagging a bit in defining the full set.
+ */
+#if !defined(CSIDL_APPDATA)
+#define CSIDL_APPDATA 0x001a
+#endif
+#if !defined(CSIDL_PERSONAL)
+#define CSIDL_PERSONAL 0x0005