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* child_info.h (child_info_spawn::__stdin): New element.

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(child_info_spawn::__stdin): Ditto.
(CURR_CHILD_INFO_MAGIC): Regenerate.
* dcrt0.cc (check_sanity_and_sync): Minor cleanup.
(child_info_spawn::handle_spawn): Handle new __std* elements by calling
move_fd.
* dtable.cc (dtable::move_fd): Define new function.
* dtable.h (dtable::move_fd): Declare new function.
* fhandler.h (fhandler_pipe::popen_pid): Declare new element.
* fhandler.h (fhandler_pipe::get_popen_pid): Define new function.
* fhandler.h (fhandler_pipe::set_popen_pid): Ditto.
* pipe.cc (fhandler_pipe::fhandler_pipe): Zero popen_pid.
(fhandler_pipe::dup): Ditto.
* spawn.cc (handle): Change second argument to bool.
(spawn_guts): Accept __stdin/__stdout arguments and set them appropriately in
child_info structure and in STARTUPINFO structure.
* syscalls.cc (popen): New cygwin-specific implementation using spawn.
(pclose): Ditto.
* winsup.h (spawn_guts): Accommodate new arguments for spawn_guts.
* fhandler.cc (fhandler_base::set_no_inheritance): Make second arg a bool.
* fhandler.h (fhandler_base::set_no_inheritance): Ditto for declaration.
* child_info.h (child_info::msv_count): Rename from the now-inappropriate
"zero".
(child_info_spawn::filler): Add filler to work around Vista bug.
(child_info_fork::filler): Ditto.
* dcrt0.cc (get_cygwin_startup_info): Remove "zero" check since it is now
always filled out.
* fork.cc (frok::parent): Move ch.zero manipulation to constructor.
* spawn.cc (spawn_guts): Ditto.  Remove _ch wrapper.
* sigproc.cc (child_info::child_info): Initialize starter[].
* shared.cc (shared_info::heap_slop_size): Remove noisy system_printfs.
* shared_info.h (CURR_SHARED_MAGIC): Regenerate.
This commit is contained in:
Christopher Faylor
2006-12-11 18:55:29 +00:00
parent e79c01f84e
commit c16548b2a2
15 changed files with 251 additions and 121 deletions
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9
winsup/cygwin/child_info.h
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@@ -23,7 +23,6 @@ enum child_status
_CI_STRACED = 0x01,
_CI_ISCYGWIN = 0x02,
_CI_SAW_CTRL_C = 0x04
};
#define OPROC_MAGIC_MASK 0xff00ff00
@@ -38,7 +37,7 @@ enum child_status
#define EXEC_MAGIC_SIZE sizeof(child_info)
/* Change this value if you get a message indicating that it is out-of-sync. */
#define CURR_CHILD_INFO_MAGIC 0x3a24db6aU
#define CURR_CHILD_INFO_MAGIC 0x3ebda16aU
/* NOTE: Do not make gratuitous changes to the names or organization of the
below class. The layout is checksummed to determine compatibility between
@@ -46,7 +45,7 @@ enum child_status
class child_info
{
public:
DWORD zero[4]; // must be zeroed
DWORD msv_count; // zeroed on < W2K3, set to pseudo-count on Vista
DWORD cb; // size of this record
DWORD intro; // improbable string
unsigned long magic; // magic number unique to child_info
@@ -85,6 +84,7 @@ public:
jmp_buf jmp; // where child will jump to
void *stacktop; // location of top of parent stack
void *stackbottom; // location of bottom of parent stack
char filler[4];
child_info_fork ();
void handle_fork () __attribute__ ((regparm (1)));;
bool handle_failure (DWORD) __attribute__ ((regparm (2)));
@@ -109,6 +109,9 @@ class child_info_spawn: public child_info
{
public:
cygheap_exec_info *moreinfo;
int __stdin;
int __stdout;
char filler[4];
~child_info_spawn ()
{