Ruby 2.7.0p0(2019-12-25revision647ee6f091eafcce70ffb75ddf7e121e192ab217)

goruby.c
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1 void Init_golf(void);
2 #define ruby_options goruby_options
3 #define ruby_run_node goruby_run_node
4 #include "main.c"
5 #undef ruby_options
6 #undef ruby_run_node
7
8 #if defined _WIN32
9 #include <io.h>
10 #include <fcntl.h>
11 #define pipe(p) _pipe(p, 32L, _O_NOINHERIT)
12 #elif defined HAVE_UNISTD_H
13 #include <unistd.h>
14 #endif
15
16 RUBY_EXTERN void *ruby_options(int argc, char **argv);
17 RUBY_EXTERN int ruby_run_node(void*);
18 RUBY_EXTERN void ruby_init_ext(const char *name, void (*init)(void));
19
20 static VALUE
21 init_golf(VALUE arg)
22 {
23 Init_golf();
24 rb_provide("golf.so");
25 return arg;
26 }
27
28 void *
29 goruby_options(int argc, char **argv)
30 {
31 static const char cmd[] = "END{require 'irb';IRB.start}";
32 int rw[2], infd;
33 void *ret;
34
35 if ((isatty(0) && isatty(1) && isatty(2)) && (pipe(rw) == 0)) {
36 ssize_t n;
37 infd = dup(0);
38 if (infd < 0) {
39 close(rw[0]);
40 close(rw[1]);
41 goto no_irb;
42 }
43 dup2(rw[0], 0);
44 close(rw[0]);
45 n = write(rw[1], cmd, sizeof(cmd) - 1);
46 close(rw[1]);
47 ret = n > 0 ? ruby_options(argc, argv) : NULL;
48 dup2(infd, 0);
49 close(infd);
50 return ret;
51 }
52 else {
53 no_irb:
54 return ruby_options(argc, argv);
55 }
56 }
57
58 int
59 goruby_run_node(void *arg)
60 {
61 int state;
62 if (NIL_P(rb_protect(init_golf, Qtrue, &state))) {
63 return state == EXIT_SUCCESS ? EXIT_FAILURE : state;
64 }
65 return ruby_run_node(arg);
66 }
close
int close(int __fildes)
isatty
int isatty(int __fildes)
VALUE
unsigned long VALUE
Definition: ruby.h:102
EXIT_FAILURE
#define EXIT_FAILURE
Definition: eval_intern.h:32
goruby_run_node
int goruby_run_node(void *arg)
Definition: goruby.c:59
ssize_t
_ssize_t ssize_t
Definition: rb_mjit_min_header-2.7.0.h:1329
NULL
#define NULL
Definition: _sdbm.c:101
rb_protect
VALUE rb_protect(VALUE(*proc)(VALUE), VALUE data, int *pstate)
Protects a function call from potential global escapes from the function.
Definition: eval.c:1071
main.c
Init_golf
void Init_golf(void)
ruby_init_ext
RUBY_EXTERN void ruby_init_ext(const char *name, void(*init)(void))
Definition: load.c:1139
EXIT_SUCCESS
#define EXIT_SUCCESS
Definition: error.c:39
goruby_options
void * goruby_options(int argc, char **argv)
Definition: goruby.c:29
dup2
RUBY_EXTERN int dup2(int, int)
Definition: dup2.c:27
n
const char size_t n
Definition: rb_mjit_min_header-2.7.0.h:5456
rb_provide
void rb_provide(const char *)
Definition: load.c:563
arg
VALUE arg
Definition: rb_mjit_min_header-2.7.0.h:5601
argv
char ** argv
Definition: ruby.c:223
pipe
int pipe(int __fildes[2])
NIL_P
#define NIL_P(v)
Definition: ruby.h:482
io.h
argc
int argc
Definition: ruby.c:222
RUBY_EXTERN
#define RUBY_EXTERN
Definition: missing.h:77
Qtrue
#define Qtrue
Definition: ruby.h:468
write
_ssize_t write(int __fd, const void *__buf, size_t __nbyte)
ruby_run_node
#define ruby_run_node
Definition: goruby.c:3
ruby_options
#define ruby_options
Definition: goruby.c:2
dup
int dup(int __fildes)
name
const char * name
Definition: nkf.c:208