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* fork.cc (lock_signals): Move to sigproc.h.

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(lock_pthread): Ditto.
(hold_everything): Ditto.
(frok::parent): Call myself.prefork() just before calling CreateProcess.  Call
myself.postfork () on function exit.
* pinfo.cc (pinfo::pending_rd_proc_pipe): Define.
(pinfo::pending_wr_proc_pipe): Ditto.
(_pinfo::dup_proc_pipe): Delete.
(pinfo::wait): Move pipe creation into pinfo::prefork.  Set pipe variables from
pending_*.
(_pinfo::sync_proc_pipe): Delete.
(_pinfo::proc_pipe_owner): Ditto.
(pinfo::prefork): Define new function.
(pinfo::postfork): Ditto.
(pinfo::postexec): Ditto.
(_pinfo::alert_parent): Remove obsolete call to sync_proc_pipe.
(_pinfo::dup_proc_pipe): Delete declaration.
(_pinfo::sync_proc_pipe): Ditto.
(pinfo::pending_rd_proc_pipe): Declare.
(pinfo::pending_wr_proc_pipe): Ditto.
(pinfo::prefork): Declare new function.
(pinfo::postfork): Ditto.
(pinfo::postexec): Ditto.
(pinfo::wr_proc_pipe): Define new wrapper function.
* sigproc.h: Include "sync.h".  Move locking functions from fork to here.
* spawn.cc (child_info_spawn::worker): Delete now-unneeded requirement to
record orig_wr_proc_pipe.  Call hold_everything prior to doing anything.  Call
myself.prefork() if spawning.  Replace wr_proc_pipe synchronization with call
to myself.postexec().  Call myself.postfork() if not execing.
* sync.h: Replace #ifdef wrapper with "#pragma once".
This commit is contained in:
Christopher Faylor
2012-03-16 20:20:29 +00:00
parent d3f6480e44
commit 4aeaedf961
7 changed files with 192 additions and 169 deletions
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10
winsup/cygwin/pinfo.h
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@@ -111,8 +111,6 @@ public:
char *cwd (size_t &);
char *cmdline (size_t &);
bool set_ctty (class fhandler_termios *, int);
HANDLE dup_proc_pipe (HANDLE, const char *) __attribute__ ((regparm(3)));
void sync_proc_pipe ();
bool alert_parent (char);
int __stdcall kill (siginfo_t&) __attribute__ ((regparm (2)));
bool __stdcall exists () __attribute__ ((regparm (1)));
@@ -124,7 +122,6 @@ public:
DWORD exec_dwProcessId;
public:
HANDLE wr_proc_pipe;
DWORD wr_proc_pipe_owner;
friend class pinfo_minimal;
};
@@ -150,6 +147,8 @@ class pinfo: public pinfo_minimal
{
bool destroy;
_pinfo *procinfo;
static HANDLE pending_rd_proc_pipe;
static HANDLE pending_wr_proc_pipe;
public:
bool waiter_ready;
class cygthread *wait_thread;
@@ -205,10 +204,15 @@ public:
return res;
}
#endif
void prefork (bool = false);
void postfork ();
void postexec ();
HANDLE shared_handle () {return h;}
void set_acl ();
friend class _pinfo;
friend class winpids;
private:
HANDLE& wr_proc_pipe() {return procinfo->wr_proc_pipe;}
};
#define ISSTATE(p, f) (!!((p)->process_state & f))