1 files changed, 303 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/ext/io_spec.c b/spec/ruby/optional/capi/ext/io_spec.c
new file mode 100644
index 0000000000..40069bd54b
--- /dev/null
+++ b/spec/ruby/optional/capi/ext/io_spec.c
@@ -0,0 +1,303 @@
+#include "ruby.h"
+#include "rubyspec.h"
+#include "ruby/io.h"
+#include <errno.h>
+#include <fcntl.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static int set_non_blocking(int fd) {
+#if defined(O_NONBLOCK) && defined(F_GETFL)
+  int flags = fcntl(fd, F_GETFL, 0);
+  if (flags == -1)
+    flags = 0;
+  return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+#elif defined(FIOBIO)
+  int flags = 1;
+  return ioctl(fd, FIOBIO, &flags);
+#else
+  errno = ENOSYS;
+  return -1;
+#endif
+}
+
+#ifdef HAVE_GET_OPEN_FILE
+static int io_spec_get_fd(VALUE io) {
+  rb_io_t* fp;
+  GetOpenFile(io, fp);
+  return fp->fd;
+}
+
+VALUE io_spec_GetOpenFile_fd(VALUE self, VALUE io) {
+  return INT2NUM(io_spec_get_fd(io));
+}
+#endif
+
+#ifdef HAVE_RB_IO_ADDSTR
+VALUE io_spec_rb_io_addstr(VALUE self, VALUE io, VALUE str) {
+  return rb_io_addstr(io, str);
+}
+#endif
+
+#ifdef HAVE_RB_IO_PRINTF
+VALUE io_spec_rb_io_printf(VALUE self, VALUE io, VALUE ary) {
+  long argc = RARRAY_LEN(ary);
+  VALUE *argv = alloca(sizeof(VALUE) * argc);
+  int i;
+
+  for (i = 0; i < argc; i++) {
+    argv[i] = rb_ary_entry(ary, i);
+  }
+
+  return rb_io_printf((int)argc, argv, io);
+}
+#endif
+
+#ifdef HAVE_RB_IO_PRINT
+VALUE io_spec_rb_io_print(VALUE self, VALUE io, VALUE ary) {
+  long argc = RARRAY_LEN(ary);
+  VALUE *argv = alloca(sizeof(VALUE) * argc);
+  int i;
+
+  for (i = 0; i < argc; i++) {
+    argv[i] = rb_ary_entry(ary, i);
+  }
+
+  return rb_io_print((int)argc, argv, io);
+}
+#endif
+
+#ifdef HAVE_RB_IO_PUTS
+VALUE io_spec_rb_io_puts(VALUE self, VALUE io, VALUE ary) {
+  long argc = RARRAY_LEN(ary);
+  VALUE *argv = alloca(sizeof(VALUE) * argc);
+  int i;
+
+  for (i = 0; i < argc; i++) {
+    argv[i] = rb_ary_entry(ary, i);
+  }
+
+  return rb_io_puts((int)argc, argv, io);
+}
+#endif
+
+#ifdef HAVE_RB_IO_WRITE
+VALUE io_spec_rb_io_write(VALUE self, VALUE io, VALUE str) {
+  return rb_io_write(io, str);
+}
+#endif
+
+#ifdef HAVE_RB_IO_CHECK_IO
+VALUE io_spec_rb_io_check_io(VALUE self, VALUE io) {
+  return rb_io_check_io(io);
+}
+#endif
+
+#ifdef HAVE_RB_IO_CHECK_READABLE
+VALUE io_spec_rb_io_check_readable(VALUE self, VALUE io) {
+  rb_io_t* fp;
+  GetOpenFile(io, fp);
+  rb_io_check_readable(fp);
+  return Qnil;
+}
+#endif
+
+#ifdef HAVE_RB_IO_CHECK_WRITABLE
+VALUE io_spec_rb_io_check_writable(VALUE self, VALUE io) {
+  rb_io_t* fp;
+  GetOpenFile(io, fp);
+  rb_io_check_writable(fp);
+  return Qnil;
+}
+#endif
+
+#ifdef HAVE_RB_IO_CHECK_CLOSED
+VALUE io_spec_rb_io_check_closed(VALUE self, VALUE io) {
+  rb_io_t* fp;
+  GetOpenFile(io, fp);
+  rb_io_check_closed(fp);
+  return Qnil;
+}
+#endif
+
+#ifdef HAVE_RB_IO_TAINT_CHECK
+VALUE io_spec_rb_io_taint_check(VALUE self, VALUE io) {
+  /*rb_io_t* fp;
+  GetOpenFile(io, fp);*/
+  rb_io_taint_check(io);
+  return io;
+}
+#endif
+
+#ifdef HAVE_RB_IO_WAIT_READABLE
+#define RB_IO_WAIT_READABLE_BUF 13
+
+VALUE io_spec_rb_io_wait_readable(VALUE self, VALUE io, VALUE read_p) {
+  int fd = io_spec_get_fd(io);
+  char buf[RB_IO_WAIT_READABLE_BUF];
+  int ret, saved_errno;
+
+  if (set_non_blocking(fd) == -1)
+    rb_sys_fail("set_non_blocking failed");
+
+  if(RTEST(read_p)) {
+    if (read(fd, buf, RB_IO_WAIT_READABLE_BUF) != -1) {
+      return Qnil;
+    }
+    saved_errno = errno;
+    rb_ivar_set(self, rb_intern("@write_data"), Qtrue);
+    errno = saved_errno;
+  }
+
+  ret = rb_io_wait_readable(fd);
+
+  if(RTEST(read_p)) {
+    ssize_t r = read(fd, buf, RB_IO_WAIT_READABLE_BUF);
+    if (r != RB_IO_WAIT_READABLE_BUF) {
+      perror("read");
+      return SSIZET2NUM(r);
+    }
+    rb_ivar_set(self, rb_intern("@read_data"),
+        rb_str_new(buf, RB_IO_WAIT_READABLE_BUF));
+  }
+
+  return ret ? Qtrue : Qfalse;
+}
+#endif
+
+#ifdef HAVE_RB_IO_WAIT_WRITABLE
+VALUE io_spec_rb_io_wait_writable(VALUE self, VALUE io) {
+  int ret = rb_io_wait_writable(io_spec_get_fd(io));
+  return ret ? Qtrue : Qfalse;
+}
+#endif
+
+#ifdef HAVE_RB_THREAD_WAIT_FD
+VALUE io_spec_rb_thread_wait_fd(VALUE self, VALUE io) {
+  rb_thread_wait_fd(io_spec_get_fd(io));
+  return Qnil;
+}
+#endif
+
+#ifdef HAVE_RB_THREAD_FD_WRITABLE
+VALUE io_spec_rb_thread_fd_writable(VALUE self, VALUE io) {
+  rb_thread_fd_writable(io_spec_get_fd(io));
+  return Qnil;
+}
+#endif
+
+#ifdef HAVE_RB_IO_BINMODE
+VALUE io_spec_rb_io_binmode(VALUE self, VALUE io) {
+  return rb_io_binmode(io);
+}
+#endif
+
+#ifdef HAVE_RB_FD_FIX_CLOEXEC
+VALUE io_spec_rb_fd_fix_cloexec(VALUE self, VALUE io) {
+  rb_fd_fix_cloexec(io_spec_get_fd(io));
+  return Qnil;
+}
+#endif
+
+#ifdef HAVE_RB_CLOEXEC_OPEN
+VALUE io_spec_rb_cloexec_open(VALUE self, VALUE path, VALUE flags, VALUE mode) {
+  const char *pathname = StringValuePtr(path);
+  int fd = rb_cloexec_open(pathname, FIX2INT(flags), FIX2INT(mode));
+  return rb_funcall(rb_cIO, rb_intern("for_fd"), 1, INT2FIX(fd));
+}
+#endif
+
+#ifdef HAVE_RB_IO_CLOSE
+VALUE io_spec_rb_io_close(VALUE self, VALUE io) {
+  return rb_io_close(io);
+}
+#endif
+
+void Init_io_spec(void) {
+  VALUE cls = rb_define_class("CApiIOSpecs", rb_cObject);
+
+#ifdef HAVE_GET_OPEN_FILE
+  rb_define_method(cls, "GetOpenFile_fd", io_spec_GetOpenFile_fd, 1);
+#endif
+
+#ifdef HAVE_RB_IO_ADDSTR
+  rb_define_method(cls, "rb_io_addstr", io_spec_rb_io_addstr, 2);
+#endif
+
+#ifdef HAVE_RB_IO_PRINTF
+  rb_define_method(cls, "rb_io_printf", io_spec_rb_io_printf, 2);
+#endif
+
+#ifdef HAVE_RB_IO_PRINT
+  rb_define_method(cls, "rb_io_print", io_spec_rb_io_print, 2);
+#endif
+
+#ifdef HAVE_RB_IO_PUTS
+  rb_define_method(cls, "rb_io_puts", io_spec_rb_io_puts, 2);
+#endif
+
+#ifdef HAVE_RB_IO_WRITE
+  rb_define_method(cls, "rb_io_write", io_spec_rb_io_write, 2);
+#endif
+
+#ifdef HAVE_RB_IO_CLOSE
+  rb_define_method(cls, "rb_io_close", io_spec_rb_io_close, 1);
+#endif
+
+#ifdef HAVE_RB_IO_CHECK_IO
+  rb_define_method(cls, "rb_io_check_io", io_spec_rb_io_check_io, 1);
+#endif
+
+#ifdef HAVE_RB_IO_CHECK_READABLE
+  rb_define_method(cls, "rb_io_check_readable", io_spec_rb_io_check_readable, 1);
+#endif
+
+#ifdef HAVE_RB_IO_CHECK_WRITABLE
+  rb_define_method(cls, "rb_io_check_writable", io_spec_rb_io_check_writable, 1);
+#endif
+
+#ifdef HAVE_RB_IO_CHECK_CLOSED
+  rb_define_method(cls, "rb_io_check_closed", io_spec_rb_io_check_closed, 1);
+#endif
+
+#ifdef HAVE_RB_IO_TAINT_CHECK
+  rb_define_method(cls, "rb_io_taint_check", io_spec_rb_io_taint_check, 1);
+#endif
+
+#ifdef HAVE_RB_IO_WAIT_READABLE
+  rb_define_method(cls, "rb_io_wait_readable", io_spec_rb_io_wait_readable, 2);
+#endif
+
+#ifdef HAVE_RB_IO_WAIT_WRITABLE
+  rb_define_method(cls, "rb_io_wait_writable", io_spec_rb_io_wait_writable, 1);
+#endif
+
+#ifdef HAVE_RB_THREAD_WAIT_FD
+  rb_define_method(cls, "rb_thread_wait_fd", io_spec_rb_thread_wait_fd, 1);
+#endif
+
+#ifdef HAVE_RB_THREAD_FD_WRITABLE
+  rb_define_method(cls, "rb_thread_fd_writable", io_spec_rb_thread_fd_writable, 1);
+#endif
+
+#ifdef HAVE_RB_IO_BINMODE
+  rb_define_method(cls, "rb_io_binmode", io_spec_rb_io_binmode, 1);
+#endif
+
+#ifdef HAVE_RB_FD_FIX_CLOEXEC
+  rb_define_method(cls, "rb_fd_fix_cloexec", io_spec_rb_fd_fix_cloexec, 1);
+#endif
+
+#ifdef HAVE_RB_CLOEXEC_OPEN
+  rb_define_method(cls, "rb_cloexec_open", io_spec_rb_cloexec_open, 3);
+#endif
+}
+
+#ifdef __cplusplus
+}
+#endif