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| author | Ulrich Drepper <drepper@redhat.com> | 2005-09-13 18:41:48 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2005-09-13 18:41:48 +0000 |
| commit | a9f43ef464f71b0d379524b2a6294092332c9a30 (patch) | |
| tree | 5a682a9fdb0d47bd7b19a1693740261a35586521 | |
| parent | 2ac057a06948dc0ca13e7f13dc4b1dd0fd122d0e (diff) | |
| download | glibc-a9f43ef464f71b0d379524b2a6294092332c9a30.tar.gz glibc-a9f43ef464f71b0d379524b2a6294092332c9a30.tar.xz glibc-a9f43ef464f71b0d379524b2a6294092332c9a30.zip | |
(__spawni): Automatically recognize some more cases when we can use vfork.
| -rw-r--r-- | sysdeps/posix/spawni.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/sysdeps/posix/spawni.c b/sysdeps/posix/spawni.c index 69106c480e..27699f4df8 100644 --- a/sysdeps/posix/spawni.c +++ b/sysdeps/posix/spawni.c @@ -1,5 +1,5 @@ /* Guts of POSIX spawn interface. Generic POSIX.1 version. - Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2000,2001,2002,2003,2004,2005 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -81,7 +81,15 @@ __spawni (pid_t *pid, const char *file, short int flags = attrp == NULL ? 0 : attrp->__flags; /* Generate the new process. */ - if (flags & POSIX_SPAWN_USEVFORK) + if ((flags & POSIX_SPAWN_USEVFORK) != 0 + /* If no major work is done, allow using vfork. Note that we + might perform the path searching. But this would be done by + a call to execvp(), too, and such a call must be OK according + to POSIX. */ + || ((flags & (POSIX_SPAWN_SETSIGMASK | POSIX_SPAWN_SETSIGDEF + | POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER + | POSIX_SPAWN_SETPGROUP | POSIX_SPAWN_RESETIDS)) == 0 + && file_actions == NULL)) new_pid = __vfork (); else new_pid = __fork (); |