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|
#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
# define SET_NON_BLOCKING_FAILS_ALWAYS 1
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
#if SET_NON_BLOCKING_FAILS_ALWAYS
NORETURN(VALUE io_spec_rb_io_wait_readable(VALUE self, VALUE io, VALUE read_p));
#endif
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
/*
* this is needed to ensure rb_io_wait_*able functions behave
* predictably because errno may be set to unexpected values
* otherwise.
*/
static VALUE io_spec_errno_set(VALUE self, VALUE val) {
int e = NUM2INT(val);
errno = e;
return val;
}
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
rb_define_method(cls, "errno=", io_spec_errno_set, 1);
}
#ifdef __cplusplus
}
#endif
|
