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/* GetProcessId is XP and up */ |
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#define _WIN32_WINNT NTDDI_WINXP |
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|
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#include "EXTERN.h" |
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#include "perl.h" |
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#include "XSUB.h" |
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|
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#include <stdio.h> |
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|
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#ifdef WIN32 |
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|
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/* perl probably did this already */ |
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#include <windows.h> |
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|
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#else |
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|
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#include <errno.h> |
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#include <fcntl.h> |
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#include <unistd.h> |
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|
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/* openbsd seems to have a buggy vfork (what would you expect), */ |
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/* while others might implement vfork as fork in older versions, which is fine */ |
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#if __linux || __FreeBSD__ || __NetBSD__ || __sun |
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#define USE_VFORK 1 |
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#endif |
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|
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#if !USE_VFORK |
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#if _POSIX_SPAWN >= 200809L |
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#define USE_SPAWN 1 |
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#include <spawn.h> |
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#else |
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#define vfork() fork() |
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#endif |
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#endif |
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|
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#endif |
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|
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static char *const * |
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array_to_cvec (SV *sv) |
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{ |
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AV *av; |
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int n, i; |
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char **cvec; |
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|
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if (!SvROK (sv) || SvTYPE (SvRV (sv)) != SVt_PVAV) |
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croak ("expected a reference to an array of argument/environment strings"); |
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|
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av = (AV *)SvRV (sv); |
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n = av_len (av) + 1; |
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cvec = (char **)SvPVX (sv_2mortal (NEWSV (0, sizeof (char *) * n + 1))); |
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|
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for (i = 0; i < n; ++i) |
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cvec [i] = SvPVbyte_nolen (*av_fetch (av, i, 11)); |
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|
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cvec [n] = 0; |
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|
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return cvec; |
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} |
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|
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MODULE = Proc::FastSpawn PACKAGE = Proc::FastSpawn |
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|
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PROTOTYPES: ENABLE |
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|
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BOOT: |
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#ifndef WIN32 |
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cv_undef (get_cv ("Proc::FastSpawn::_quote", 0)); |
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#endif |
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|
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long |
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spawn (const char *path, SV *argv, SV *envp = &PL_sv_undef) |
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INIT: |
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{ |
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#ifdef WIN32 |
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if (w32_num_children >= MAXIMUM_WAIT_OBJECTS) |
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{ |
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errno = EAGAIN; |
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XSRETURN_UNDEF; |
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} |
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|
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argv = sv_2mortal (newSVsv (argv)); |
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PUSHMARK (SP); |
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XPUSHs (argv); |
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PUTBACK; |
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call_pv ("Proc::FastSpawn::_quote", G_VOID | G_DISCARD); |
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SPAGAIN; |
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#endif |
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} |
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CODE: |
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{ |
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extern char **environ; |
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char *const *cargv = array_to_cvec (argv); |
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char *const *cenvp = SvOK (envp) ? array_to_cvec (envp) : environ; |
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intptr_t pid; |
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|
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fflush (0); |
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#ifdef WIN32 |
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pid = _spawnve (_P_NOWAIT, path, cargv, cenvp); |
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|
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if (pid == -1) |
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XSRETURN_UNDEF; |
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|
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/* do it like perl, dadadoop dadadoop */ |
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w32_child_handles [w32_num_children] = (HANDLE)pid; |
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pid = GetProcessId ((HANDLE)pid); /* get the real pid, unfortunately, requires wxp or newer */ |
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w32_child_pids [w32_num_children] = pid; |
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++w32_num_children; |
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#elif USE_SPAWN |
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{ |
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pid_t xpid; |
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|
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errno = posix_spawn (&xpid, path, 0, 0, cargv, cenvp); |
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|
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if (errno) |
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XSRETURN_UNDEF; |
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|
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pid = xpid; |
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} |
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#else |
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pid = vfork (); |
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|
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if (pid < 0) |
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XSRETURN_UNDEF; |
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|
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if (pid == 0) |
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{ |
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execve (path, cargv, cenvp); |
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_exit (127); |
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} |
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#endif |
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|
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RETVAL = pid; |
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} |
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OUTPUT: RETVAL |
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|
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void |
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fd_inherit (int fd, int on = 1) |
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CODE: |
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#ifdef WIN32 |
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SetHandleInformation ((HANDLE)_get_osfhandle (fd), HANDLE_FLAG_INHERIT, on ? HANDLE_FLAG_INHERIT : 0); |
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#else |
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fcntl (fd, F_SETFD, on ? 0 : FD_CLOEXEC); |
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#endif |
