зеркало из https://github.com/github/ruby.git
1378 строки
28 KiB
C
1378 строки
28 KiB
C
/**********************************************************************
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process.c -
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$Author$
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$Date$
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created at: Tue Aug 10 14:30:50 JST 1993
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Copyright (C) 1993-2002 Yukihiro Matsumoto
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Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
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Copyright (C) 2000 Information-technology Promotion Agency, Japan
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**********************************************************************/
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#include "ruby.h"
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#include "rubysig.h"
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#include <stdio.h>
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#include <errno.h>
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#include <signal.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef __DJGPP__
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#include <process.h>
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#endif
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#include <time.h>
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#include <ctype.h>
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struct timeval rb_time_interval _((VALUE));
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#ifdef HAVE_SYS_WAIT_H
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# include <sys/wait.h>
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#endif
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#ifdef HAVE_GETPRIORITY
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# include <sys/resource.h>
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#endif
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#include "st.h"
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#ifdef __EMX__
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#undef HAVE_GETPGRP
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#endif
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#ifdef HAVE_SYS_TIMES_H
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#include <sys/times.h>
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#endif
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#if defined(HAVE_TIMES) || defined(_WIN32)
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static VALUE S_Tms;
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#endif
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#ifndef WIFEXITED
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#define WIFEXITED(w) (((w) & 0xff) == 0)
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#endif
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#ifndef WIFSIGNALED
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#define WIFSIGNALED(w) (((w) & 0x7f) > 0 && (((w) & 0x7f) < 0x7f))
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#endif
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#ifndef WIFSTOPPED
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#define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
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#endif
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#ifndef WEXITSTATUS
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#define WEXITSTATUS(w) (((w) >> 8) & 0xff)
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#endif
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#ifndef WTERMSIG
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#define WTERMSIG(w) ((w) & 0x7f)
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#endif
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#ifndef WSTOPSIG
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#define WSTOPSIG WEXITSTATUS
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#endif
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static VALUE
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get_pid()
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{
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return INT2FIX(getpid());
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}
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static VALUE
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get_ppid()
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{
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#ifdef _WIN32
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return INT2FIX(0);
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#else
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return INT2FIX(getppid());
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#endif
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}
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static VALUE rb_cProcStatus;
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VALUE rb_last_status = Qnil;
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static void
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last_status_set(status, pid)
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int status, pid;
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{
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rb_last_status = rb_obj_alloc(rb_cProcStatus);
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rb_iv_set(rb_last_status, "status", INT2FIX(status));
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rb_iv_set(rb_last_status, "pid", INT2FIX(pid));
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}
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static VALUE
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pst_to_i(st)
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VALUE st;
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{
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return rb_iv_get(st, "status");
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}
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static VALUE
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pst_to_s(st)
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VALUE st;
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{
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return rb_fix2str(pst_to_i(st), 10);
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}
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static VALUE
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pst_pid(st)
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VALUE st;
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{
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return rb_iv_get(st, "pid");
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}
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static VALUE
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pst_equal(st1, st2)
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VALUE st1, st2;
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{
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if (st1 == st2) return Qtrue;
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return rb_equal(pst_to_i(st1), st2);
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}
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static VALUE
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pst_bitand(st1, st2)
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VALUE st1, st2;
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{
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int status = NUM2INT(st1) & NUM2INT(st2);
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return INT2NUM(status);
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}
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static VALUE
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pst_rshift(st1, st2)
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VALUE st1, st2;
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{
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int status = NUM2INT(st1) >> NUM2INT(st2);
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return INT2NUM(status);
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}
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static VALUE
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pst_wifstopped(st)
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VALUE st;
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{
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int status = NUM2INT(st);
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if (WIFSTOPPED(status))
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return Qtrue;
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else
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return Qfalse;
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}
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static VALUE
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pst_wstopsig(st)
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VALUE st;
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{
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int status = NUM2INT(st);
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if (WIFSTOPPED(status))
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return INT2NUM(WSTOPSIG(status));
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return Qnil;
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}
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static VALUE
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pst_wifsignaled(st)
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VALUE st;
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{
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int status = NUM2INT(st);
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if (WIFSIGNALED(status))
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return Qtrue;
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else
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return Qfalse;
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}
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static VALUE
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pst_wtermsig(st)
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VALUE st;
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{
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int status = NUM2INT(st);
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if (WIFSIGNALED(status))
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return INT2NUM(WTERMSIG(status));
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return Qnil;
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}
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static VALUE
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pst_wifexited(st)
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VALUE st;
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{
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int status = NUM2INT(st);
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if (WIFEXITED(status))
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return Qtrue;
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else
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return Qfalse;
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}
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static VALUE
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pst_wexitstatus(st)
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VALUE st;
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{
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int status = NUM2INT(st);
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if (WIFEXITED(status))
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return INT2NUM(WEXITSTATUS(status));
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return Qnil;
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}
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static VALUE
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pst_wcoredump(st)
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VALUE st;
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{
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#ifdef WCOREDUMP
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int status = NUM2INT(st);
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if (WCOREDUMP(status))
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return Qtrue;
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else
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return Qfalse;
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#else
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return Qfalse;
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#endif
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}
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#if !defined(HAVE_WAITPID) && !defined(HAVE_WAIT4)
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#define NO_WAITPID
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static st_table *pid_tbl;
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#endif
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int
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rb_waitpid(pid, st, flags)
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int pid;
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int *st;
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int flags;
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{
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int result;
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#ifndef NO_WAITPID
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int oflags = flags;
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if (!rb_thread_alone()) { /* there're other threads to run */
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flags |= WNOHANG;
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}
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retry:
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TRAP_BEG;
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#ifdef HAVE_WAITPID
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result = waitpid(pid, st, flags);
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#else /* HAVE_WAIT4 */
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result = wait4(pid, st, flags, NULL);
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#endif
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TRAP_END;
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if (result < 0) {
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if (errno == EINTR) {
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rb_thread_polling();
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goto retry;
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}
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return -1;
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}
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if (result == 0) {
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if (oflags & WNOHANG) return 0;
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rb_thread_polling();
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if (rb_thread_alone()) flags = oflags;
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goto retry;
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}
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#else /* NO_WAITPID */
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if (pid_tbl && st_lookup(pid_tbl, pid, st)) {
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last_status_set(*st, pid);
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st_delete(pid_tbl, &pid, NULL);
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return pid;
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}
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if (flags) {
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rb_raise(rb_eArgError, "can't do waitpid with flags");
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}
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for (;;) {
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TRAP_BEG;
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result = wait(st);
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TRAP_END;
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if (result < 0) {
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if (errno == EINTR) {
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rb_thread_schedule();
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continue;
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}
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return -1;
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}
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if (result == pid) {
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break;
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}
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if (!pid_tbl)
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pid_tbl = st_init_numtable();
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st_insert(pid_tbl, pid, st);
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if (!rb_thread_alone()) rb_thread_schedule();
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}
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#endif
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if (result > 0) {
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last_status_set(*st, result);
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}
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return result;
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}
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#ifdef NO_WAITPID
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struct wait_data {
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int pid;
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int status;
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};
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static int
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wait_each(pid, status, data)
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int pid, status;
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struct wait_data *data;
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{
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if (data->status != -1) return ST_STOP;
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data->pid = pid;
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data->status = status;
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return ST_DELETE;
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}
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static int
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waitall_each(pid, status, ary)
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int pid, status;
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VALUE ary;
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{
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last_status_set(status, pid);
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rb_ary_push(ary, rb_assoc_new(INT2NUM(pid), rb_last_status));
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return ST_DELETE;
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}
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#endif
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static VALUE
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proc_wait(argc, argv)
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int argc;
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VALUE *argv;
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{
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VALUE vpid, vflags;
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int pid, flags, status;
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flags = 0;
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rb_scan_args(argc, argv, "02", &vpid, &vflags);
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if (argc == 0) {
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pid = -1;
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}
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else {
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pid = NUM2INT(vpid);
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if (argc == 2 && !NIL_P(vflags)) {
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flags = NUM2UINT(vflags);
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}
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}
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if ((pid = rb_waitpid(pid, &status, flags)) < 0)
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rb_sys_fail(0);
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if (pid == 0) {
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return rb_last_status = Qnil;
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}
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return INT2FIX(pid);
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}
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static VALUE
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proc_wait2(argc, argv)
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int argc;
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VALUE *argv;
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{
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VALUE pid = proc_wait(argc, argv);
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if (NIL_P(pid)) return Qnil;
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return rb_assoc_new(pid, rb_last_status);
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}
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static VALUE
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proc_waitall()
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{
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VALUE result;
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int pid, status;
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result = rb_ary_new();
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#ifdef NO_WAITPID
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if (pid_tbl) {
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st_foreach(pid_tbl, waitall_each, result);
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}
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for (pid = -1;;) {
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pid = wait(&status);
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if (pid == -1) {
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if (errno == ECHILD)
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break;
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if (errno == EINTR) {
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rb_thread_schedule();
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continue;
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}
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rb_sys_fail(0);
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}
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last_status_set(status, pid);
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rb_ary_push(result, rb_assoc_new(INT2NUM(pid), rb_last_status));
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}
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#else
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rb_last_status = Qnil;
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for (pid = -1;;) {
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pid = rb_waitpid(-1, &status, 0);
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if (pid == -1) {
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if (errno == ECHILD)
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break;
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rb_sys_fail(0);
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}
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rb_ary_push(result, rb_assoc_new(INT2NUM(pid), rb_last_status));
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}
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#endif
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return result;
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}
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#ifndef HAVE_STRING_H
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char *strtok();
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#endif
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#ifdef HAVE_SETITIMER
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#define before_exec() rb_thread_stop_timer()
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#define after_exec() rb_thread_start_timer()
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#else
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#define before_exec()
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#define after_exec()
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#endif
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extern char *dln_find_exe();
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static void
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security(str)
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char *str;
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{
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if (rb_env_path_tainted()) {
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if (rb_safe_level() > 0) {
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rb_raise(rb_eSecurityError, "Insecure PATH - %s", str);
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}
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}
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}
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static int
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proc_exec_v(argv, prog)
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char **argv;
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char *prog;
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{
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if (!prog)
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prog = argv[0];
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security(prog);
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prog = dln_find_exe(prog, 0);
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if (!prog)
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return -1;
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#if (defined(MSDOS) && !defined(DJGPP)) || defined(__human68k__) || defined(__EMX__) || defined(OS2)
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{
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#if defined(__human68k__)
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#define COMMAND "command.x"
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#endif
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#if defined(__EMX__) || defined(OS2) /* OS/2 emx */
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#define COMMAND "cmd.exe"
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#endif
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#if (defined(MSDOS) && !defined(DJGPP))
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#define COMMAND "command.com"
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#endif
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char *extension;
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if ((extension = strrchr(prog, '.')) != NULL && strcasecmp(extension, ".bat") == 0) {
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char **new_argv;
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char *p;
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int n;
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for (n = 0; argv[n]; n++)
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/* no-op */;
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new_argv = ALLOCA_N(char*, n + 2);
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for (; n > 0; n--)
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new_argv[n + 1] = argv[n];
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new_argv[1] = strcpy(ALLOCA_N(char, strlen(argv[0]) + 1), argv[0]);
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for (p = new_argv[1]; *p != '\0'; p++)
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if (*p == '/')
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*p = '\\';
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new_argv[0] = COMMAND;
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argv = new_argv;
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prog = dln_find_exe(argv[0], 0);
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if (!prog) {
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errno = ENOENT;
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return -1;
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}
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}
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}
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#endif /* MSDOS or __human68k__ or __EMX__ */
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before_exec();
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#ifdef _WIN32
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do_aspawn(P_OVERLAY, prog, argv);
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#else
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execv(prog, argv);
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#endif
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after_exec();
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return -1;
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}
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static int
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proc_exec_n(argc, argv, progv)
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int argc;
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VALUE *argv;
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VALUE progv;
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{
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char *prog = 0;
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char **args;
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int i;
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if (progv) {
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prog = RSTRING(progv)->ptr;
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}
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args = ALLOCA_N(char*, argc+1);
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for (i=0; i<argc; i++) {
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SafeStringValue(argv[i]);
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args[i] = RSTRING(argv[i])->ptr;
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}
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args[i] = 0;
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if (args[0]) {
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return proc_exec_v(args, prog);
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}
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return -1;
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}
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int
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rb_proc_exec(str)
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const char *str;
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{
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const char *s = str;
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char *ss, *t;
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char **argv, **a;
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while (*str && ISSPACE(*str))
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str++;
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#ifdef _WIN32
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before_exec();
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do_spawn(P_OVERLAY, (char *)str);
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after_exec();
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#else
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for (s=str; *s; s++) {
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if (*s != ' ' && !ISALPHA(*s) && strchr("*?{}[]<>()~&|\\$;'`\"\n",*s)) {
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#if defined(MSDOS)
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int status;
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before_exec();
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status = system(str);
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after_exec();
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if (status != -1)
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exit(status);
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#else
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#if defined(__human68k__) || defined(__CYGWIN32__) || defined(__EMX__)
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char *shell = dln_find_exe("sh", 0);
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int status = -1;
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before_exec();
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if (shell)
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execl(shell, "sh", "-c", str, (char *) NULL);
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else
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status = system(str);
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after_exec();
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if (status != -1)
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exit(status);
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#else
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before_exec();
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execl("/bin/sh", "sh", "-c", str, (char *)NULL);
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after_exec();
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#endif
|
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#endif
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return -1;
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}
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}
|
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a = argv = ALLOCA_N(char*, (s-str)/2+2);
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ss = ALLOCA_N(char, s-str+1);
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|
strcpy(ss, str);
|
|
if (*a++ = strtok(ss, " \t")) {
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|
while (t = strtok(NULL, " \t")) {
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*a++ = t;
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}
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*a = NULL;
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}
|
|
if (argv[0]) {
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return proc_exec_v(argv, 0);
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}
|
|
errno = ENOENT;
|
|
#endif /* _WIN32 */
|
|
return -1;
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}
|
|
|
|
#if defined(__human68k__) || defined(__DJGPP__) || defined(_WIN32)
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|
static int
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|
proc_spawn_v(argv, prog)
|
|
char **argv;
|
|
char *prog;
|
|
{
|
|
char *extension;
|
|
int status;
|
|
|
|
if (!prog)
|
|
prog = argv[0];
|
|
security(prog);
|
|
prog = dln_find_exe(prog, 0);
|
|
if (!prog)
|
|
return -1;
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|
|
#if defined(__human68k__)
|
|
if ((extension = strrchr(prog, '.')) != NULL && strcasecmp(extension, ".bat") == 0) {
|
|
char **new_argv;
|
|
char *p;
|
|
int n;
|
|
|
|
for (n = 0; argv[n]; n++)
|
|
/* no-op */;
|
|
new_argv = ALLOCA_N(char*, n + 2);
|
|
for (; n > 0; n--)
|
|
new_argv[n + 1] = argv[n];
|
|
new_argv[1] = strcpy(ALLOCA_N(char, strlen(argv[0]) + 1), argv[0]);
|
|
for (p = new_argv[1]; *p != '\0'; p++)
|
|
if (*p == '/')
|
|
*p = '\\';
|
|
new_argv[0] = COMMAND;
|
|
argv = new_argv;
|
|
prog = dln_find_exe(argv[0], 0);
|
|
if (!prog) {
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
}
|
|
#endif
|
|
before_exec();
|
|
#if defined(_WIN32)
|
|
status = do_aspawn(P_WAIT, prog, argv);
|
|
#else
|
|
status = spawnv(P_WAIT, prog, argv);
|
|
#endif
|
|
after_exec();
|
|
return status;
|
|
}
|
|
|
|
static int
|
|
proc_spawn_n(argc, argv, prog)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE prog;
|
|
{
|
|
char **args;
|
|
int i;
|
|
|
|
args = ALLOCA_N(char*, argc + 1);
|
|
for (i = 0; i < argc; i++) {
|
|
SafeStringValue(argv[i]);
|
|
args[i] = RSTRING(argv[i])->ptr;
|
|
}
|
|
if (prog)
|
|
SafeStringValue(prog);
|
|
args[i] = (char*) 0;
|
|
if (args[0])
|
|
return proc_spawn_v(args, prog ? RSTRING(prog)->ptr : 0);
|
|
return -1;
|
|
}
|
|
|
|
#if !defined(_WIN32)
|
|
static int
|
|
proc_spawn(sv)
|
|
VALUE sv;
|
|
{
|
|
char *str;
|
|
char *s, *t;
|
|
char **argv, **a;
|
|
int status;
|
|
|
|
SafeStringValue(sv);
|
|
str = s = RSTRING(sv)->ptr;
|
|
for (s = str; *s; s++) {
|
|
if (*s != ' ' && !ISALPHA(*s) && strchr("*?{}[]<>()~&|\\$;'`\"\n",*s)) {
|
|
char *shell = dln_find_exe("sh", 0);
|
|
before_exec();
|
|
status = shell?spawnl(P_WAIT,shell,"sh","-c",str,(char*)NULL):system(str);
|
|
after_exec();
|
|
return status;
|
|
}
|
|
}
|
|
a = argv = ALLOCA_N(char*, (s - str) / 2 + 2);
|
|
s = ALLOCA_N(char, s - str + 1);
|
|
strcpy(s, str);
|
|
if (*a++ = strtok(s, " \t")) {
|
|
while (t = strtok(NULL, " \t"))
|
|
*a++ = t;
|
|
*a = NULL;
|
|
}
|
|
return argv[0] ? proc_spawn_v(argv, 0) : -1;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
VALUE
|
|
rb_f_exec(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE prog = 0;
|
|
VALUE tmp;
|
|
|
|
if (argc == 0) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
tmp = rb_check_array_type(argv[0]);
|
|
if (!NIL_P(tmp)) {
|
|
if (RARRAY(tmp)->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
prog = RARRAY(tmp)->ptr[0];
|
|
SafeStringValue(prog);
|
|
argv[0] = RARRAY(tmp)->ptr[1];
|
|
}
|
|
if (argc == 1 && prog == 0) {
|
|
VALUE cmd = argv[0];
|
|
|
|
SafeStringValue(cmd);
|
|
rb_proc_exec(RSTRING(cmd)->ptr);
|
|
}
|
|
else {
|
|
proc_exec_n(argc, argv, prog);
|
|
}
|
|
rb_sys_fail(RSTRING(argv[0])->ptr);
|
|
return Qnil; /* dummy */
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_fork(obj)
|
|
VALUE obj;
|
|
{
|
|
#if !defined(__human68k__) && !defined(_WIN32) && !defined(__MACOS__) && !defined(__EMX__) && !defined(__VMS)
|
|
int pid;
|
|
|
|
rb_secure(2);
|
|
switch (pid = fork()) {
|
|
case 0:
|
|
#ifdef linux
|
|
after_exec();
|
|
#endif
|
|
rb_thread_atfork();
|
|
if (rb_block_given_p()) {
|
|
int status;
|
|
|
|
rb_protect(rb_yield, Qundef, &status);
|
|
ruby_stop(status);
|
|
}
|
|
return Qnil;
|
|
|
|
case -1:
|
|
rb_sys_fail("fork(2)");
|
|
return Qnil;
|
|
|
|
default:
|
|
return INT2FIX(pid);
|
|
}
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_exit_bang(argc, argv, obj)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE obj;
|
|
{
|
|
VALUE status;
|
|
int istatus;
|
|
|
|
rb_secure(4);
|
|
if (rb_scan_args(argc, argv, "01", &status) == 1) {
|
|
istatus = NUM2INT(status);
|
|
}
|
|
else {
|
|
istatus = -1;
|
|
}
|
|
_exit(istatus);
|
|
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
void
|
|
rb_syswait(pid)
|
|
int pid;
|
|
{
|
|
static int overriding;
|
|
RETSIGTYPE (*hfunc)_((int)), (*qfunc)_((int)), (*ifunc)_((int));
|
|
int status;
|
|
int i, hooked = Qfalse;
|
|
|
|
if (!overriding) {
|
|
#ifdef SIGHUP
|
|
hfunc = signal(SIGHUP, SIG_IGN);
|
|
#endif
|
|
#ifdef SIGQUIT
|
|
qfunc = signal(SIGQUIT, SIG_IGN);
|
|
#endif
|
|
ifunc = signal(SIGINT, SIG_IGN);
|
|
overriding = Qtrue;
|
|
hooked = Qtrue;
|
|
}
|
|
|
|
do {
|
|
i = rb_waitpid(pid, &status, 0);
|
|
} while (i == -1 && errno == EINTR);
|
|
|
|
if (hooked) {
|
|
#ifdef SIGHUP
|
|
signal(SIGHUP, hfunc);
|
|
#endif
|
|
#ifdef SIGQUIT
|
|
signal(SIGQUIT, qfunc);
|
|
#endif
|
|
signal(SIGINT, ifunc);
|
|
overriding = Qfalse;
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_system(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
#if defined(__EMX__)
|
|
VALUE cmd;
|
|
int status;
|
|
|
|
fflush(stdout);
|
|
fflush(stderr);
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
if (TYPE(argv[0]) == T_ARRAY) {
|
|
if (RARRAY(argv[0])->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
argv[0] = RARRAY(argv[0])->ptr[0];
|
|
}
|
|
cmd = rb_ary_join(rb_ary_new4(argc, argv), rb_str_new2(" "));
|
|
|
|
SafeStringValue(cmd);
|
|
status = do_spawn(RSTRING(cmd)->ptr);
|
|
last_status_set(status, 0);
|
|
|
|
if (status == 0) return Qtrue;
|
|
return Qfalse;
|
|
#elif defined(__human68k__) || defined(__DJGPP__) || defined(_WIN32)
|
|
volatile VALUE prog = 0;
|
|
int status;
|
|
|
|
fflush(stdout);
|
|
fflush(stderr);
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
if (TYPE(argv[0]) == T_ARRAY) {
|
|
if (RARRAY(argv[0])->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
prog = RARRAY(argv[0])->ptr[0];
|
|
argv[0] = RARRAY(argv[0])->ptr[1];
|
|
}
|
|
|
|
if (argc == 1 && prog == 0) {
|
|
#if defined(_WIN32)
|
|
status = do_spawn(P_WAIT, RSTRING(argv[0])->ptr);
|
|
#else
|
|
status = proc_spawn(argv[0]);
|
|
#endif
|
|
}
|
|
else {
|
|
status = proc_spawn_n(argc, argv, prog);
|
|
}
|
|
#if defined(_WIN32)
|
|
last_status_set(status, 0);
|
|
#else
|
|
last_status_set(status == -1 ? 127 : status, 0);
|
|
#endif
|
|
return status == 0 ? Qtrue : Qfalse;
|
|
#elif defined(__VMS)
|
|
VALUE cmd;
|
|
int status;
|
|
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
if (TYPE(argv[0]) == T_ARRAY) {
|
|
if (RARRAY(argv[0])->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
argv[0] = RARRAY(argv[0])->ptr[0];
|
|
}
|
|
cmd = rb_ary_join(rb_ary_new4(argc, argv), rb_str_new2(" "));
|
|
|
|
SafeStringValue(cmd);
|
|
status = system(RSTRING(cmd)->ptr);
|
|
last_status_set((status & 0xff) << 8, 0);
|
|
|
|
if (status == 0) return Qtrue;
|
|
return Qfalse;
|
|
#else
|
|
volatile VALUE prog = 0;
|
|
int pid;
|
|
int i;
|
|
|
|
fflush(stdout);
|
|
fflush(stderr);
|
|
if (argc == 0) {
|
|
rb_last_status = Qnil;
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
if (TYPE(argv[0]) == T_ARRAY) {
|
|
if (RARRAY(argv[0])->len != 2) {
|
|
rb_raise(rb_eArgError, "wrong first argument");
|
|
}
|
|
prog = RARRAY(argv[0])->ptr[0];
|
|
argv[0] = RARRAY(argv[0])->ptr[1];
|
|
}
|
|
|
|
if (prog) {
|
|
SafeStringValue(prog);
|
|
}
|
|
for (i = 0; i < argc; i++) {
|
|
SafeStringValue(argv[i]);
|
|
}
|
|
retry:
|
|
switch (pid = fork()) {
|
|
case 0:
|
|
if (argc == 1 && prog == 0) {
|
|
rb_proc_exec(RSTRING(argv[0])->ptr);
|
|
}
|
|
else {
|
|
proc_exec_n(argc, argv, prog);
|
|
}
|
|
_exit(127);
|
|
break; /* not reached */
|
|
|
|
case -1:
|
|
if (errno == EAGAIN) {
|
|
rb_thread_sleep(1);
|
|
goto retry;
|
|
}
|
|
rb_sys_fail(0);
|
|
break;
|
|
|
|
default:
|
|
rb_syswait(pid);
|
|
}
|
|
|
|
if (NUM2INT(rb_last_status) == 0)
|
|
return Qtrue;
|
|
return Qfalse;
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_sleep(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
int beg, end;
|
|
|
|
beg = time(0);
|
|
if (argc == 0) {
|
|
rb_thread_sleep_forever();
|
|
}
|
|
else if (argc == 1) {
|
|
rb_thread_wait_for(rb_time_interval(argv[0]));
|
|
}
|
|
else {
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
}
|
|
|
|
end = time(0) - beg;
|
|
|
|
return INT2FIX(end);
|
|
}
|
|
|
|
static VALUE
|
|
proc_getpgrp()
|
|
{
|
|
int pgrp;
|
|
|
|
#if defined(HAVE_GETPGRP) && defined(GETPGRP_VOID)
|
|
pgrp = getpgrp();
|
|
if (pgrp < 0) rb_sys_fail(0);
|
|
return INT2FIX(pgrp);
|
|
#else
|
|
# ifdef HAVE_GETPGID
|
|
pgrp = getpgid(0);
|
|
if (pgrp < 0) rb_sys_fail(0);
|
|
return INT2FIX(pgrp);
|
|
# else
|
|
rb_notimplement();
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
proc_setpgrp()
|
|
{
|
|
/* check for posix setpgid() first; this matches the posix */
|
|
/* getpgrp() above. It appears that configure will set SETPGRP_VOID */
|
|
/* even though setpgrp(0,0) would be prefered. The posix call avoids */
|
|
/* this confusion. */
|
|
#ifdef HAVE_SETPGID
|
|
if (setpgid(0,0) < 0) rb_sys_fail(0);
|
|
#elif defined(HAVE_SETPGRP) && defined(SETPGRP_VOID)
|
|
if (setpgrp() < 0) rb_sys_fail(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
return INT2FIX(0);
|
|
}
|
|
|
|
static VALUE
|
|
proc_getpgid(obj, pid)
|
|
VALUE obj, pid;
|
|
{
|
|
#if defined(HAVE_GETPGID) && !defined(__CHECKER__)
|
|
int i = getpgid(NUM2INT(pid));
|
|
|
|
if (i < 0) rb_sys_fail(0);
|
|
return INT2NUM(i);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
proc_setpgid(obj, pid, pgrp)
|
|
VALUE obj, pid, pgrp;
|
|
{
|
|
#ifdef HAVE_SETPGID
|
|
int ipid, ipgrp;
|
|
|
|
rb_secure(2);
|
|
ipid = NUM2INT(pid);
|
|
ipgrp = NUM2INT(pgrp);
|
|
|
|
if (setpgid(ipid, ipgrp) < 0) rb_sys_fail(0);
|
|
return INT2FIX(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
proc_setsid()
|
|
{
|
|
#if defined(HAVE_SETSID)
|
|
int pid;
|
|
|
|
rb_secure(2);
|
|
pid = setsid();
|
|
if (pid < 0) rb_sys_fail(0);
|
|
return INT2FIX(pid);
|
|
#elif defined(HAVE_SETPGRP) && defined(TIOCNOTTY)
|
|
pid_t pid;
|
|
int ret;
|
|
|
|
rb_secure(2);
|
|
pid = getpid();
|
|
#if defined(SETPGRP_VOID)
|
|
ret = setpgrp();
|
|
/* If `pid_t setpgrp(void)' is equivalent to setsid(),
|
|
`ret' will be the same value as `pid', and following open() will fail.
|
|
In Linux, `int setpgrp(void)' is equivalent to setpgid(0, 0). */
|
|
#else
|
|
ret = setpgrp(0, pid);
|
|
#endif
|
|
if (ret == -1) rb_sys_fail(0);
|
|
|
|
if ((fd = open("/dev/tty", O_RDWR)) >= 0) {
|
|
ioctl(fd, TIOCNOTTY, NULL);
|
|
close(fd);
|
|
}
|
|
return INT2FIX(pid);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
proc_getpriority(obj, which, who)
|
|
VALUE obj, which, who;
|
|
{
|
|
#ifdef HAVE_GETPRIORITY
|
|
int prio, iwhich, iwho;
|
|
|
|
iwhich = NUM2INT(which);
|
|
iwho = NUM2INT(who);
|
|
|
|
errno = 0;
|
|
prio = getpriority(iwhich, iwho);
|
|
if (errno) rb_sys_fail(0);
|
|
return INT2FIX(prio);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
proc_setpriority(obj, which, who, prio)
|
|
VALUE obj, which, who, prio;
|
|
{
|
|
#ifdef HAVE_GETPRIORITY
|
|
int iwhich, iwho, iprio;
|
|
|
|
rb_secure(2);
|
|
iwhich = NUM2INT(which);
|
|
iwho = NUM2INT(who);
|
|
iprio = NUM2INT(prio);
|
|
|
|
if (setpriority(iwhich, iwho, iprio) < 0)
|
|
rb_sys_fail(0);
|
|
return INT2FIX(0);
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
proc_getuid(obj)
|
|
VALUE obj;
|
|
{
|
|
int uid = getuid();
|
|
return INT2FIX(uid);
|
|
}
|
|
|
|
static VALUE
|
|
proc_setuid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
int uid = NUM2INT(id);
|
|
|
|
#if defined(HAVE_SETRESUID) && !defined(__CHECKER__)
|
|
if (setresuid(uid, -1, -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETREUID
|
|
if (setreuid(uid, -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETRUID
|
|
if (setruid(uid) < 0) rb_sys_fail(0);
|
|
#else
|
|
{
|
|
if (geteuid() == uid) {
|
|
if (setuid(uid) < 0) rb_sys_fail(0);
|
|
}
|
|
else {
|
|
rb_notimplement();
|
|
}
|
|
}
|
|
#endif
|
|
return INT2FIX(uid);
|
|
}
|
|
|
|
static VALUE
|
|
proc_getgid(obj)
|
|
VALUE obj;
|
|
{
|
|
int gid = getgid();
|
|
return INT2FIX(gid);
|
|
}
|
|
|
|
static VALUE
|
|
proc_setgid(obj, id)
|
|
VALUE obj, id;
|
|
{
|
|
int gid = NUM2INT(id);
|
|
|
|
#if defined(HAVE_SETRESGID) && !defined(__CHECKER__)
|
|
if (setresgid(gid, -1, -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETREGID
|
|
if (setregid(gid, -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAS_SETRGID
|
|
if (setrgid((GIDTYPE)gid) < 0) rb_sys_fail(0);
|
|
#else
|
|
{
|
|
if (getegid() == gid) {
|
|
if (setgid(gid) < 0) rb_sys_fail(0);
|
|
}
|
|
else {
|
|
rb_notimplement();
|
|
}
|
|
}
|
|
#endif
|
|
return INT2FIX(gid);
|
|
}
|
|
|
|
static VALUE
|
|
proc_geteuid(obj)
|
|
VALUE obj;
|
|
{
|
|
int euid = geteuid();
|
|
return INT2FIX(euid);
|
|
}
|
|
|
|
static VALUE
|
|
proc_seteuid(obj, euid)
|
|
VALUE obj, euid;
|
|
{
|
|
#if defined(HAVE_SETRESUID) && !defined(__CHECKER__)
|
|
if (setresuid(-1, NUM2INT(euid), -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETREUID
|
|
if (setreuid(-1, NUM2INT(euid)) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETEUID
|
|
if (seteuid(NUM2INT(euid)) < 0) rb_sys_fail(0);
|
|
#else
|
|
euid = NUM2INT(euid);
|
|
if (euid == getuid()) {
|
|
if (setuid(euid) < 0) rb_sys_fail(0);
|
|
}
|
|
else {
|
|
rb_notimplement();
|
|
}
|
|
#endif
|
|
return euid;
|
|
}
|
|
|
|
static VALUE
|
|
proc_getegid(obj)
|
|
VALUE obj;
|
|
{
|
|
int egid = getegid();
|
|
|
|
return INT2FIX(egid);
|
|
}
|
|
|
|
static VALUE
|
|
proc_setegid(obj, egid)
|
|
VALUE obj, egid;
|
|
{
|
|
rb_secure(2);
|
|
#if defined(HAVE_SETRESGID) && !defined(__CHECKER__)
|
|
if (setresgid(-1, NUM2INT(egid), -1) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETREGID
|
|
if (setregid(-1, NUM2INT(egid)) < 0) rb_sys_fail(0);
|
|
#elif defined HAVE_SETEGID
|
|
if (setegid(NUM2INT(egid)) < 0) rb_sys_fail(0);
|
|
#else
|
|
egid = NUM2INT(egid);
|
|
if (egid == getgid()) {
|
|
if (setgid(egid) < 0) rb_sys_fail(0);
|
|
}
|
|
else {
|
|
rb_notimplement();
|
|
}
|
|
#endif
|
|
return egid;
|
|
}
|
|
|
|
VALUE
|
|
rb_proc_times(obj)
|
|
VALUE obj;
|
|
{
|
|
#if defined(HAVE_TIMES) && !defined(__CHECKER__)
|
|
#ifndef HZ
|
|
# ifdef CLK_TCK
|
|
# define HZ CLK_TCK
|
|
# else
|
|
# define HZ 60
|
|
# endif
|
|
#endif /* HZ */
|
|
struct tms buf;
|
|
volatile VALUE utime, stime, cutime, sctime;
|
|
|
|
times(&buf);
|
|
return rb_struct_new(S_Tms,
|
|
utime = rb_float_new((double)buf.tms_utime / HZ),
|
|
stime = rb_float_new((double)buf.tms_stime / HZ),
|
|
cutime = rb_float_new((double)buf.tms_cutime / HZ),
|
|
sctime = rb_float_new((double)buf.tms_cstime / HZ));
|
|
#else
|
|
rb_notimplement();
|
|
#endif
|
|
}
|
|
|
|
VALUE rb_mProcess;
|
|
|
|
void
|
|
Init_process()
|
|
{
|
|
rb_define_virtual_variable("$$", get_pid, 0);
|
|
rb_define_readonly_variable("$?", &rb_last_status);
|
|
rb_define_global_function("exec", rb_f_exec, -1);
|
|
rb_define_global_function("fork", rb_f_fork, 0);
|
|
rb_define_global_function("exit!", rb_f_exit_bang, -1);
|
|
rb_define_global_function("system", rb_f_system, -1);
|
|
rb_define_global_function("sleep", rb_f_sleep, -1);
|
|
|
|
rb_mProcess = rb_define_module("Process");
|
|
|
|
#if !defined(_WIN32) && !defined(DJGPP)
|
|
#ifdef WNOHANG
|
|
rb_define_const(rb_mProcess, "WNOHANG", INT2FIX(WNOHANG));
|
|
#else
|
|
rb_define_const(rb_mProcess, "WNOHANG", INT2FIX(0));
|
|
#endif
|
|
#ifdef WUNTRACED
|
|
rb_define_const(rb_mProcess, "WUNTRACED", INT2FIX(WUNTRACED));
|
|
#else
|
|
rb_define_const(rb_mProcess, "WUNTRACED", INT2FIX(0));
|
|
#endif
|
|
#endif
|
|
|
|
rb_define_singleton_method(rb_mProcess, "fork", rb_f_fork, 0);
|
|
rb_define_singleton_method(rb_mProcess, "exit!", rb_f_exit_bang, -1);
|
|
rb_define_singleton_method(rb_mProcess, "exit", rb_f_exit, -1);
|
|
rb_define_singleton_method(rb_mProcess, "abort", rb_f_abort, -1);
|
|
|
|
rb_define_module_function(rb_mProcess, "kill", rb_f_kill, -1);
|
|
rb_define_module_function(rb_mProcess, "wait", proc_wait, -1);
|
|
rb_define_module_function(rb_mProcess, "wait2", proc_wait2, -1);
|
|
rb_define_module_function(rb_mProcess, "waitpid", proc_wait, -1);
|
|
rb_define_module_function(rb_mProcess, "waitpid2", proc_wait2, -1);
|
|
rb_define_module_function(rb_mProcess, "waitall", proc_waitall, 0);
|
|
|
|
rb_cProcStatus = rb_define_class_under(rb_mProcess, "Status", rb_cObject);
|
|
rb_undef_method(CLASS_OF(rb_cProcStatus), "new");
|
|
|
|
rb_define_method(rb_cProcStatus, "==", pst_equal, 1);
|
|
rb_define_method(rb_cProcStatus, "&", pst_bitand, 1);
|
|
rb_define_method(rb_cProcStatus, ">>", pst_rshift, 1);
|
|
rb_define_method(rb_cProcStatus, "to_i", pst_to_i, 0);
|
|
rb_define_method(rb_cProcStatus, "to_int", pst_to_i, 0);
|
|
rb_define_method(rb_cProcStatus, "to_s", pst_to_s, 0);
|
|
rb_define_method(rb_cProcStatus, "inspect", pst_to_s, 0);
|
|
|
|
rb_define_method(rb_cProcStatus, "pid", pst_pid, 0);
|
|
|
|
rb_define_method(rb_cProcStatus, "stopped?", pst_wifstopped, 0);
|
|
rb_define_method(rb_cProcStatus, "stopsig", pst_wstopsig, 0);
|
|
rb_define_method(rb_cProcStatus, "signaled?", pst_wifsignaled, 0);
|
|
rb_define_method(rb_cProcStatus, "termsig", pst_wtermsig, 0);
|
|
rb_define_method(rb_cProcStatus, "exited?", pst_wifexited, 0);
|
|
rb_define_method(rb_cProcStatus, "exitstatus", pst_wexitstatus, 0);
|
|
rb_define_method(rb_cProcStatus, "coredump?", pst_wcoredump, 0);
|
|
|
|
rb_define_module_function(rb_mProcess, "pid", get_pid, 0);
|
|
rb_define_module_function(rb_mProcess, "ppid", get_ppid, 0);
|
|
|
|
rb_define_module_function(rb_mProcess, "getpgrp", proc_getpgrp, 0);
|
|
rb_define_module_function(rb_mProcess, "setpgrp", proc_setpgrp, 0);
|
|
rb_define_module_function(rb_mProcess, "getpgid", proc_getpgid, 1);
|
|
rb_define_module_function(rb_mProcess, "setpgid", proc_setpgid, 2);
|
|
|
|
rb_define_module_function(rb_mProcess, "setsid", proc_setsid, 0);
|
|
|
|
rb_define_module_function(rb_mProcess, "getpriority", proc_getpriority, 2);
|
|
rb_define_module_function(rb_mProcess, "setpriority", proc_setpriority, 3);
|
|
|
|
#ifdef HAVE_GETPRIORITY
|
|
rb_define_const(rb_mProcess, "PRIO_PROCESS", INT2FIX(PRIO_PROCESS));
|
|
rb_define_const(rb_mProcess, "PRIO_PGRP", INT2FIX(PRIO_PGRP));
|
|
rb_define_const(rb_mProcess, "PRIO_USER", INT2FIX(PRIO_USER));
|
|
#endif
|
|
|
|
rb_define_module_function(rb_mProcess, "uid", proc_getuid, 0);
|
|
rb_define_module_function(rb_mProcess, "uid=", proc_setuid, 1);
|
|
rb_define_module_function(rb_mProcess, "gid", proc_getgid, 0);
|
|
rb_define_module_function(rb_mProcess, "gid=", proc_setgid, 1);
|
|
rb_define_module_function(rb_mProcess, "euid", proc_geteuid, 0);
|
|
rb_define_module_function(rb_mProcess, "euid=", proc_seteuid, 1);
|
|
rb_define_module_function(rb_mProcess, "egid", proc_getegid, 0);
|
|
rb_define_module_function(rb_mProcess, "egid=", proc_setegid, 1);
|
|
|
|
rb_define_module_function(rb_mProcess, "times", rb_proc_times, 0);
|
|
|
|
#if defined(HAVE_TIMES) || defined(_WIN32)
|
|
S_Tms = rb_struct_define("Tms", "utime", "stime", "cutime", "cstime", 0);
|
|
#endif
|
|
}
|