From: ts <decoux@...>
Date: 2003-05-10T02:04:12+09:00
Subject: Re: extern "C" of prep_stdio

>>>>> "a" == ahoward  <ahoward@fsl.noaa.gov> writes:

a> now, i personally have had much better luck using #reopen, but i'm curious as
a> to your rational.

 No rational,

pigeon% cat a.c
#include <ruby.h>

int main()
{
    int pipes[2], count;
    VALUE params[2], w;
    char str[512];
    FILE *fd;

    if ((fd = fopen("aaa", "w")) == NULL) {
        exit(1);
    }
    if (pipe(pipes) == -1) {
        exit(1);
    }
    ruby_init();
    ruby_init_loadpath();

    params[0] = INT2FIX(pipes[1]);
    params[1] = rb_str_new2("w");
    w = rb_class_new_instance(2, params, rb_path2class("IO"));

    rb_funcall(rb_defout, rb_intern("reopen"), 1, w);
    rb_funcall(rb_stderr, rb_intern("reopen"), 1, w);
    rb_eval_string("$stderr.puts 'aa'; puts 'hello'; system('ls a.c xx')");
    count = read(pipes[0], str, 512);
    if (count >= 0) {
        fprintf(fd, "<<\n%*.*s>>\n", count, count, str);
    }
    fclose(fd);
    return 0;
}
pigeon% 

pigeon% a.out
pigeon% 

pigeon% cat aaa
<<
aa
hello
ls: xx: No such file or directory
a.c
>>
pigeon% 



Guy Decoux