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* cygheap.cc (dup_now): New function.

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(cygheap_setup_for_child): Accept new argument controlling whether to delay
copying of cygheap to shared memory region.
(cygheap_setup_for_child_cleanup): Accept new arguments controlling whether to
copy cygheap at this point.
* cygheap.h: Reflect above changes.
* fork.cc (fork_parent): Break copying of cygheap into two parts when
fork_fixup is required so that the child can see the parent's changes.
(vfork): Do stack cleanup prior to forcing a fork error.
* spawn.cc (spawn_guts): Ditto.
This commit is contained in:
Christopher Faylor
2001-09-14 00:49:00 +00:00
parent 3e2d8af0b9
commit e2e078278c
5 changed files with 64 additions and 24 deletions
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4
winsup/cygwin/cygheap.h
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@@ -177,8 +177,8 @@ extern init_cygheap *cygheap;
extern void *cygheap_max;
class child_info;
void __stdcall cygheap_setup_for_child (child_info *ci) __attribute__ ((regparm(1)));
void __stdcall cygheap_setup_for_child_cleanup (child_info *ci) __attribute__ ((regparm(1)));
void *__stdcall cygheap_setup_for_child (child_info *ci, bool dup_later) __attribute__ ((regparm(2)));
void __stdcall cygheap_setup_for_child_cleanup (void *, child_info *, bool) __attribute__ ((regparm(3)));
void __stdcall cygheap_fixup_in_child (child_info *, bool);
extern "C" {
void __stdcall cfree (void *) __attribute__ ((regparm(1)));