| 1 |
root |
1.1 |
#include "EXTERN.h" |
| 2 |
|
|
#include "perl.h" |
| 3 |
|
|
#include "XSUB.h" |
| 4 |
|
|
|
| 5 |
|
|
#include <stdio.h> |
| 6 |
|
|
|
| 7 |
|
|
#ifdef WIN32 |
| 8 |
|
|
|
| 9 |
|
|
#include <windows.h> |
| 10 |
|
|
|
| 11 |
|
|
#else |
| 12 |
|
|
|
| 13 |
|
|
#include <errno.h> |
| 14 |
|
|
#include <fcntl.h> |
| 15 |
|
|
#include <unistd.h> |
| 16 |
|
|
|
| 17 |
|
|
/* openbsd seems to have a buggy vfork (what would you expect), */ |
| 18 |
|
|
/* while others might implement vfork as fork in older versions, which is fine */ |
| 19 |
|
|
#if __linux || __FreeBSD__ || __NetBSD__ || __sun |
| 20 |
|
|
#define USE_VFORK 1 |
| 21 |
|
|
#endif |
| 22 |
|
|
|
| 23 |
|
|
#if !USE_VFORK |
| 24 |
|
|
#if _POSIX_SPAWN >= 200809L |
| 25 |
|
|
#define USE_SPAWN 1 |
| 26 |
|
|
#include <spawn.h> |
| 27 |
|
|
#else |
| 28 |
|
|
#define vfork() fork() |
| 29 |
|
|
#endif |
| 30 |
|
|
#endif |
| 31 |
|
|
|
| 32 |
|
|
#endif |
| 33 |
|
|
|
| 34 |
|
|
static char *const * |
| 35 |
|
|
array_to_cvec (SV *sv) |
| 36 |
|
|
{ |
| 37 |
|
|
AV *av; |
| 38 |
|
|
int n, i; |
| 39 |
|
|
char **cvec; |
| 40 |
|
|
|
| 41 |
|
|
if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
| 42 |
|
|
croak ("expected a reference to an array of argument/environment strings"); |
| 43 |
|
|
|
| 44 |
|
|
av = (AV *)SvRV (sv); |
| 45 |
|
|
n = av_len (av) + 1; |
| 46 |
|
|
cvec = (char **)SvPVX (sv_2mortal (NEWSV (0, sizeof (char *) * n + 1))); |
| 47 |
|
|
|
| 48 |
|
|
for (i = 0; i < n; ++i) |
| 49 |
|
|
cvec [i] = SvPVbyte_nolen (*av_fetch (av, i, 11)); |
| 50 |
|
|
|
| 51 |
|
|
cvec [n] = 0; |
| 52 |
|
|
|
| 53 |
|
|
return cvec; |
| 54 |
|
|
} |
| 55 |
|
|
|
| 56 |
|
|
MODULE = Proc::FastSpawn PACKAGE = Proc::FastSpawn |
| 57 |
|
|
|
| 58 |
|
|
PROTOTYPES: ENABLE |
| 59 |
|
|
|
| 60 |
|
|
BOOT: |
| 61 |
|
|
#ifndef WIN32 |
| 62 |
|
|
cv_undef (get_cv ("Proc::FastSpawn::_quote", 0)); |
| 63 |
|
|
#endif |
| 64 |
|
|
|
| 65 |
|
|
long |
| 66 |
|
|
spawn (const char *path, SV *argv, SV *envp = &PL_sv_undef) |
| 67 |
|
|
INIT: |
| 68 |
|
|
{ |
| 69 |
|
|
#ifdef WIN32 |
| 70 |
|
|
if (w32_num_children >= MAXIMUM_WAIT_OBJECTS) |
| 71 |
|
|
{ |
| 72 |
|
|
errno = EAGAIN; |
| 73 |
|
|
XSRETURN_UNDEF; |
| 74 |
|
|
} |
| 75 |
|
|
|
| 76 |
|
|
argv = sv_2mortal (newSVsv (argv)); |
| 77 |
|
|
PUSHMARK (SP); |
| 78 |
|
|
XPUSHs (argv); |
| 79 |
|
|
PUTBACK; |
| 80 |
|
|
call_pv ("Proc::FastSpawn::_quote", G_VOID | G_DISCARD); |
| 81 |
|
|
SPAGAIN; |
| 82 |
|
|
#endif |
| 83 |
|
|
} |
| 84 |
|
|
CODE: |
| 85 |
|
|
{ |
| 86 |
|
|
extern char **environ; |
| 87 |
|
|
char *const *cargv = array_to_cvec (argv); |
| 88 |
|
|
char *const *cenvp = SvOK (envp) ? array_to_cvec (envp) : environ; |
| 89 |
|
|
intptr_t pid; |
| 90 |
|
|
|
| 91 |
|
|
fflush (0); |
| 92 |
|
|
#ifdef WIN32 |
| 93 |
|
|
pid = _spawnve (_P_NOWAIT, path, cargv, cenvp); |
| 94 |
|
|
|
| 95 |
|
|
if (pid == -1) |
| 96 |
|
|
XSRETURN_UNDEF; |
| 97 |
|
|
|
| 98 |
|
|
/* do it like perl, dadadoop dadadoop */ |
| 99 |
|
|
w32_child_handles [w32_num_children] = (HANDLE)pid; |
| 100 |
root |
1.2 |
pid = GetProcessId ((HANDLE)pid); /* get the real pid, unfortunately, requires wxp or newer */ |
| 101 |
root |
1.1 |
w32_child_pids [w32_num_children] = pid; |
| 102 |
|
|
++w32_num_children; |
| 103 |
|
|
#elif USE_SPAWN |
| 104 |
|
|
{ |
| 105 |
|
|
pid_t xpid; |
| 106 |
|
|
|
| 107 |
|
|
errno = posix_spawn (&xpid, path, 0, 0, cargv, cenvp); |
| 108 |
|
|
|
| 109 |
|
|
if (errno) |
| 110 |
|
|
XSRETURN_UNDEF; |
| 111 |
|
|
|
| 112 |
|
|
pid = xpid; |
| 113 |
|
|
} |
| 114 |
|
|
#else |
| 115 |
|
|
pid = vfork (); |
| 116 |
|
|
|
| 117 |
|
|
if (pid < 0) |
| 118 |
|
|
XSRETURN_UNDEF; |
| 119 |
|
|
|
| 120 |
|
|
if (pid == 0) |
| 121 |
|
|
{ |
| 122 |
|
|
execve (path, cargv, cenvp); |
| 123 |
|
|
_exit (127); |
| 124 |
|
|
} |
| 125 |
|
|
#endif |
| 126 |
|
|
|
| 127 |
|
|
RETVAL = pid; |
| 128 |
|
|
} |
| 129 |
|
|
OUTPUT: RETVAL |
| 130 |
|
|
|
| 131 |
|
|
void |
| 132 |
|
|
fd_inherit (int fd, int on = 1) |
| 133 |
|
|
CODE: |
| 134 |
|
|
#ifdef WIN32 |
| 135 |
|
|
SetHandleInformation ((HANDLE)_get_osfhandle (fd), HANDLE_FLAG_INHERIT, on ? HANDLE_FLAG_INHERIT : 0); |
| 136 |
|
|
#else |
| 137 |
|
|
fcntl (fd, F_SETFD, on ? 0 : FD_CLOEXEC); |
| 138 |
|
|
#endif |
