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ruby/process.c

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27 KiB
C
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/**********************************************************************
process.c -
$Author$
$Date$
created at: Tue Aug 10 14:30:50 JST 1993
Copyright (C) 1993-2002 Yukihiro Matsumoto
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
Copyright (C) 2000 Information-technology Promotion Agency, Japan
**********************************************************************/
#include "ruby.h"
#include "rubysig.h"
#include <stdio.h>
#include <errno.h>
#include <signal.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <time.h>
#ifndef NT
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#else
struct timeval {
long tv_sec; /* seconds */
long tv_usec; /* and microseconds */
};
#endif
#endif /* NT */
#include <ctype.h>
struct timeval rb_time_interval _((VALUE));
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#ifdef HAVE_GETPRIORITY
# include <sys/resource.h>
#endif
#include "st.h"
#ifdef __EMX__
#undef HAVE_GETPGRP
#endif
#ifdef HAVE_SYS_TIMES_H
#include <sys/times.h>
#endif
#if defined(HAVE_TIMES) || defined(NT)
static VALUE S_Tms;
#endif
#ifndef WIFEXITED
#define WIFEXITED(w) (((w) & 0xff) == 0)
#endif
#ifndef WIFSIGNALED
#define WIFSIGNALED(w) (((w) & 0x7f) > 0 && (((w) & 0x7f) < 0x7f))
#endif
#ifndef WIFSTOPPED
#define WIFSTOPPED(w) (((w) & 0xff) == 0x7f)
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(w) (((w) >> 8) & 0xff)
#endif
#ifndef WTERMSIG
#define WTERMSIG(w) ((w) & 0x7f)
#endif
#ifndef WSTOPSIG
#define WSTOPSIG WEXITSTATUS
#endif
static VALUE
get_pid()
{
return INT2FIX(getpid());
}
static VALUE
get_ppid()
{
#ifdef NT
return INT2FIX(0);
#else
return INT2FIX(getppid());
#endif
}
static VALUE rb_cProcStatus;
VALUE rb_last_status = Qnil;
static void
last_status_set(status)
int status;
{
rb_last_status = rb_obj_alloc(rb_cProcStatus);
rb_iv_set(rb_last_status, "status", INT2FIX(status));
}
static VALUE
pst_to_i(st)
VALUE st;
{
return rb_iv_get(st, "status");
}
static VALUE
pst_to_s(st)
VALUE st;
{
return rb_fix2str(pst_to_i(st), 10);
}
static VALUE
pst_equal(st1, st2)
VALUE st1, st2;
{
if (st1 == st2) return Qtrue;
return rb_equal(pst_to_i(st1), st2);
}
static VALUE
pst_bitand(st1, st2)
VALUE st1, st2;
{
int status = NUM2INT(st1) & NUM2INT(st2);
return INT2NUM(status);
}
static VALUE
pst_rshift(st1, st2)
VALUE st1, st2;
{
int status = NUM2INT(st1) >> NUM2INT(st2);
return INT2NUM(status);
}
static VALUE
pst_wifstopped(st)
VALUE st;
{
int status = NUM2INT(st);
if (WIFSTOPPED(status))
return Qtrue;
else
return Qfalse;
}
static VALUE
pst_wstopsig(st)
VALUE st;
{
int status = NUM2INT(st);
if (WIFSTOPPED(status))
return INT2NUM(WSTOPSIG(status));
return Qnil;
}
static VALUE
pst_wifsignaled(st)
VALUE st;
{
int status = NUM2INT(st);
if (WIFSIGNALED(status))
return Qtrue;
else
return Qfalse;
}
static VALUE
pst_wtermsig(st)
VALUE st;
{
int status = NUM2INT(st);
if (WIFSIGNALED(status))
return INT2NUM(WTERMSIG(status));
return Qnil;
}
static VALUE
pst_wifexited(st)
VALUE st;
{
int status = NUM2INT(st);
if (WIFEXITED(status))
return Qtrue;
else
return Qfalse;
}
static VALUE
pst_wexitstatus(st)
VALUE st;
{
int status = NUM2INT(st);
if (WIFEXITED(status))
return INT2NUM(WEXITSTATUS(status));
return Qnil;
}
static VALUE
pst_wcoredump(st)
VALUE st;
{
#ifdef WCOREDUMP
int status = NUM2INT(st);
if (WCOREDUMP(status))
return Qtrue;
else
return Qfalse;
#else
return Qfalse;
#endif
}
#if !defined(HAVE_WAITPID) && !defined(HAVE_WAIT4)
#define NO_WAITPID
static st_table *pid_tbl;
#endif
int
rb_waitpid(pid, st, flags)
int pid;
int *st;
int flags;
{
int result;
#ifndef NO_WAITPID
int oflags = flags;
if (!rb_thread_alone()) { /* there're other threads to run */
flags |= WNOHANG;
}
retry:
TRAP_BEG;
#ifdef HAVE_WAITPID
result = waitpid(pid, st, flags);
#else /* HAVE_WAIT4 */
result = wait4(pid, st, flags, NULL);
#endif
TRAP_END;
if (result < 0) {
if (errno == EINTR) {
rb_thread_polling();
goto retry;
}
return -1;
}
if (result == 0) {
if (oflags & WNOHANG) return 0;
rb_thread_polling();
if (rb_thread_alone()) flags = oflags;
goto retry;
}
#else /* NO_WAITPID */
if (pid_tbl && st_lookup(pid_tbl, pid, st)) {
last_status_set(*st);
st_delete(pid_tbl, &pid, NULL);
return pid;
}
if (flags) {
rb_raise(rb_eArgError, "can't do waitpid with flags");
}
for (;;) {
TRAP_BEG;
result = wait(st);
TRAP_END;
if (result < 0) {
if (errno == EINTR) {
rb_thread_schedule();
continue;
}
return -1;
}
if (result == pid) {
break;
}
if (!pid_tbl)
pid_tbl = st_init_numtable();
st_insert(pid_tbl, pid, st);
if (!rb_thread_alone()) rb_thread_schedule();
}
#endif
last_status_set(*st);
return result;
}
#ifdef NO_WAITPID
struct wait_data {
int pid;
int status;
};
static int
wait_each(key, value, data)
int key, value;
struct wait_data *data;
{
if (data->status != -1) return ST_STOP;
data->pid = key;
data->status = value;
return ST_DELETE;
}
static int
waitall_each(key, value, data)
int key, value;
VALUE data;
{
last_status_set(value);
rb_ary_push(data, rb_assoc_new(INT2NUM(key), rb_last_status));
return ST_DELETE;
}
#endif
static VALUE
proc_wait(argc, argv)
int argc;
VALUE *argv;
{
VALUE vpid, vflags;
int pid, flags, status;
flags = 0;
rb_scan_args(argc, argv, "02", &vpid, &vflags);
if (argc == 0) {
pid = -1;
}
else {
pid = NUM2INT(vpid);
if (argc == 2 && !NIL_P(vflags)) {
flags = NUM2UINT(vflags);
}
}
if ((pid = rb_waitpid(pid, &status, flags)) < 0)
rb_sys_fail(0);
if (pid == 0) {
rb_last_status = Qnil;
return Qnil;
}
return INT2FIX(pid);
}
static VALUE
proc_wait2(argc, argv)
int argc;
VALUE *argv;
{
VALUE pid = proc_wait(argc, argv);
if (NIL_P(pid)) return Qnil;
return rb_assoc_new(pid, rb_last_status);
}
static VALUE
proc_waitall()
{
VALUE result;
int pid, status;
result = rb_ary_new();
#ifdef NO_WAITPID
if (pid_tbl) {
st_foreach(pid_tbl, waitall_each, result);
}
for (pid = -1;;) {
pid = wait(&status);
if (pid == -1) {
if (errno == ECHILD)
break;
if (errno == EINTR) {
rb_thread_schedule();
continue;
}
rb_sys_fail(0);
}
last_status_set(status);
rb_ary_push(result, rb_assoc_new(INT2NUM(pid), rb_last_status));
}
#else
rb_last_status = Qnil;
for (pid = -1;;) {
pid = rb_waitpid(-1, &status, 0);
if (pid == -1) {
if (errno == ECHILD)
break;
rb_sys_fail(0);
}
rb_ary_push(result, rb_assoc_new(INT2NUM(pid), rb_last_status));
}
#endif
return result;
}
#ifndef HAVE_STRING_H
char *strtok();
#endif
#ifdef HAVE_SETITIMER
#define before_exec() rb_thread_stop_timer()
#define after_exec() rb_thread_start_timer()
#else
#define before_exec()
#define after_exec()
#endif
extern char *dln_find_exe();
static void
security(str)
char *str;
{
if (rb_env_path_tainted()) {
if (rb_safe_level() > 0) {
rb_raise(rb_eSecurityError, "Insecure PATH - %s", str);
}
}
}
static int
proc_exec_v(argv, prog)
char **argv;
char *prog;
{
if (prog) {
security(prog);
}
else {
security(argv[0]);
prog = dln_find_exe(argv[0], 0);
if (!prog) {
errno = ENOENT;
return -1;
}
}
#if (defined(MSDOS) && !defined(DJGPP)) || defined(__human68k__) || defined(__EMX__) || defined(OS2)
{
#if defined(__human68k__)
#define COMMAND "command.x"
#endif
#if defined(__EMX__) || defined(OS2) /* OS/2 emx */
#define COMMAND "cmd.exe"
#endif
#if (defined(MSDOS) && !defined(DJGPP))
#define COMMAND "command.com"
#endif
char *extension;
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 /* MSDOS or __human68k__ or __EMX__ */
before_exec();
execv(prog, argv);
after_exec();
return -1;
}
static int
proc_exec_n(argc, argv, progv)
int argc;
VALUE *argv;
VALUE progv;
{
char *prog = 0;
char **args;
int i;
if (progv) {
prog = RSTRING(progv)->ptr;
}
args = ALLOCA_N(char*, argc+1);
for (i=0; i<argc; i++) {
SafeStringValue(argv[i]);
args[i] = RSTRING(argv[i])->ptr;
}
args[i] = 0;
if (args[0]) {
return proc_exec_v(args, prog);
}
return -1;
}
int
rb_proc_exec(str)
const char *str;
{
const char *s = str;
char *ss, *t;
char **argv, **a;
while (*str && ISSPACE(*str))
str++;
for (s=str; *s; s++) {
if (*s != ' ' && !ISALPHA(*s) && strchr("*?{}[]<>()~&|\\$;'`\"\n",*s)) {
#if defined(MSDOS)
int status;
before_exec();
status = system(str);
after_exec();
if (status != -1)
exit(status);
#else
#if defined(__human68k__) || defined(__CYGWIN32__) || defined(__EMX__)
char *shell = dln_find_exe("sh", 0);
int status = -1;
before_exec();
if (shell)
execl(shell, "sh", "-c", str, (char *) NULL);
else
status = system(str);
after_exec();
if (status != -1)
exit(status);
#else
before_exec();
execl("/bin/sh", "sh", "-c", str, (char *)NULL);
after_exec();
#endif
#endif
return -1;
}
}
a = argv = ALLOCA_N(char*, (s-str)/2+2);
ss = ALLOCA_N(char, s-str+1);
strcpy(ss, str);
if (*a++ = strtok(ss, " \t")) {
while (t = strtok(NULL, " \t")) {
*a++ = t;
}
*a = NULL;
}
if (argv[0]) {
return proc_exec_v(argv, 0);
}
errno = ENOENT;
return -1;
}
#if defined(__human68k__)
static int
proc_spawn_v(argv, prog)
char **argv;
char *prog;
{
char *extension;
int status;
if (prog) {
security(prog);
}
else {
security(argv[0]);
prog = dln_find_exe(argv[0], 0);
if (!prog)
return -1;
}
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;
}
}
before_exec();
status = spawnv(P_WAIT, prog, argv);
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++) {
SafeStr(argv[i]);
args[i] = RSTRING(argv[i])->ptr;
}
SafeStringValue(prog);
args[i] = (char*) 0;
if (args[0])
return proc_spawn_v(args, RSTRING(prog)->ptr);
return -1;
}
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 /* __human68k__ */
VALUE
rb_f_exec(argc, argv)
int argc;
VALUE *argv;
{
VALUE prog = 0;
if (argc == 0) {
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);
}
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(NT) && !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(NT) || 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);
if (status == 0) return Qtrue;
return Qfalse;
#else
#ifdef DJGPP
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);
if (status == 0) return Qtrue;
return Qfalse;
#else
#if defined(__human68k__)
VALUE prog = 0;
int i;
int status;
fflush(stdin);
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) {
status = proc_spawn(argv[0]);
}
else {
status = proc_spawn_n(argc, argv, prog);
}
last_status_set(status == -1 ? 127 : status);
return status == 0 ? Qtrue : Qfalse;
#else
#if 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);
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 /* __VMS */
#endif /* __human68k__ */
#endif /* DJGPP */
#endif /* NT */
}
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;
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;
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;
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;
times(&buf);
return rb_struct_new(S_Tms,
rb_float_new((double)buf.tms_utime / HZ),
rb_float_new((double)buf.tms_stime / HZ),
rb_float_new((double)buf.tms_cutime / HZ),
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(NT) && !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_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, "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(NT)
S_Tms = rb_struct_define("Tms", "utime", "stime", "cutime", "cstime", 0);
#endif
}
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