Ruby: goruby.c Source File

Ruby 3.3.7p123 (2025-01-15 revision be31f993d7fa0219d85f7b3c694d454da4ecc10b)

goruby.c
1static void Init_golf(void);
2static void *goruby_options(int argc, char **argv);
3static int goruby_run_node(void *arg);
4#define ruby_options goruby_options
5#define ruby_run_node goruby_run_node
6#include "main.c"
7#undef ruby_options
8#undef ruby_run_node
9
10#if defined _WIN32
11#include <io.h>
12#include <fcntl.h>
13#define pipe(p) _pipe(p, 32L, _O_NOINHERIT)
14#elif defined HAVE_UNISTD_H
15#include <unistd.h>
16#endif
17
18 RUBY_EXTERN void *ruby_options(int argc, char **argv);
19 RUBY_EXTERN int ruby_run_node(void*);
20 RUBY_EXTERN void ruby_init_ext(const char *name, void (*init)(void));
21
22#include "golf_prelude.c"
23
24static VALUE
25init_golf(VALUE arg)
26{
27 Init_golf();
28 rb_provide("golf.so");
29 return arg;
30}
31
32void *
33goruby_options(int argc, char **argv)
34{
35 static const char cmd[] = "END{require 'irb';IRB.start}";
36 int rw[2], infd;
37 void *ret;
38
39 if ((isatty(0) && isatty(1) && isatty(2)) && (pipe(rw) == 0)) {
40 ssize_t n;
41 infd = dup(0);
42 if (infd < 0) {
43 close(rw[0]);
44 close(rw[1]);
45 goto no_irb;
46 }
47 dup2(rw[0], 0);
48 close(rw[0]);
49 n = write(rw[1], cmd, sizeof(cmd) - 1);
50 close(rw[1]);
51 ret = n > 0 ? ruby_options(argc, argv) : NULL;
52 dup2(infd, 0);
53 close(infd);
54 return ret;
55 }
56 no_irb:
57 return ruby_options(argc, argv);
58}
59
60int
61goruby_run_node(void *arg)
62{
63 int state;
64 if (NIL_P(rb_protect(init_golf, Qtrue, &state))) {
65 return state == EXIT_SUCCESS ? EXIT_FAILURE : state;
66 }
67 return ruby_run_node(arg);
68}
RUBY_EXTERN
#define RUBY_EXTERN
Declaration of externally visible global variables.
Definition dllexport.h:45
Qtrue
#define Qtrue
Old name of RUBY_Qtrue.
Definition special_consts.h:61
NIL_P
#define NIL_P
Old name of RB_NIL_P.
Definition special_consts.h:55
rb_provide
void rb_provide(const char *feature)
Declares that the given feature is already provided by someone else.
Definition load.c:714
VALUE
uintptr_t VALUE
Type that represents a Ruby object.
Definition value.h:40