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* child_info.h: Bump magic number.

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(class child_info): Add an element.
* cygheap.cc (init_cheap): Allocate cygwin heap in shared memory area.
(cygheap_fixup_in_child): Map cygwin heap, passed from parent via shared memory
into correct address.
(cygheap_setup_for_child): New function.
* cygheap.h: Declare new functions.
* dcrt0.cc (dll_crt0_1): Accomodate new cygheap_fixup_in_child arguments.
Avoid protecting subproc_ready unless it is spawn/nowait.
* fork.cc (fork_parent): Use new cygheap_setup_for_child function to setup
cygwin heap info.  Close passed cygheap shared memory handle.
* spawn.cc (spawn_guts): Ditto.  Also, reorganize to avoid synchronization
between parent and child in non-P_OVERLAY case.
* sigproc.cc (wait_sig): Only signal subproc_ready when execing.
This commit is contained in:
Christopher Faylor
2001-07-17 03:41:52 +00:00
parent 30640285c3
commit 5457dfcb81
9 changed files with 180 additions and 132 deletions
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4
winsup/cygwin/cygheap.h
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@@ -166,9 +166,11 @@ struct init_cygheap
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_fixup_in_child (child_info *, bool);
extern "C" {
void __stdcall cfree (void *) __attribute__ ((regparm(1)));
void __stdcall cygheap_fixup_in_child (HANDLE, bool);
void *__stdcall cmalloc (cygheap_types, DWORD) __attribute__ ((regparm(2)));
void *__stdcall crealloc (void *, DWORD) __attribute__ ((regparm(2)));
void *__stdcall ccalloc (cygheap_types, DWORD, DWORD) __attribute__ ((regparm(3)));