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Change name from commune_recv to commune_process throughout. Change name from

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commune_send to commune_request throughout.
* pinfo.h (PICOM_EXTRASTR): New flag.
(PICOM_FIFO): Define with new flag.
(_pinfo::hello_pid): Delete.
(_pinfo::tothem): Delete.
(_pinfo::fromthem): Delete.
(_pinfo::commune_process): Rename from commune_recv.  Add a siginfo_t argument
to declaration.
(_pinfo::commune_request): Rename from commune_send.  Change DWORD to
__uint32_t in declaration.
* pinfo.cc (_pinfo::commune_process): Rename from commune_recv.  Add siginfo_t
argument.  Use information from argument rather than reading from another pipe.
Synchronize with other process's commune event.
(_pinfo::commune_request): Rename from commune_send.  Change DWORD to __uint32
in argument.  Fill out information in new siginfo_t element and rely on
extended operation of sig_send rather than trying to deal with synchronization
issues here.  Use process handle and read pipe information filled out by
sig_send to gather information from the other process.
* sigproc.cc (sig_send): Take special action if "communing" to ensure
synchronization with the other process and to return information about the
other process to the caller.
(talktome): Accept a siginfo_t and handle arguments.  Read additional
information from the signal pipe when _si_commune._si_code has the
PICOM_EXTRASTR flag set.
(wait_sig): Pass the transmitted siginfo_t struct and the pipe handle to
talktome.  Close pipe read handle as soon as possible after we detect that
we're exiting.
This commit is contained in:
Christopher Faylor
2005-09-28 22:56:47 +00:00
parent 503490bb9f
commit 0730fa0763
6 changed files with 219 additions and 249 deletions
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2
winsup/cygwin/fhandler_fifo.cc
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@@ -99,7 +99,7 @@ fhandler_fifo::open_not_mine (int flags)
commune_result r;
if (p->pid != myself->pid)
{
r = p->commune_send (PICOM_FIFO, get_win32_name ());
r = p->commune_request (PICOM_FIFO, get_win32_name ());
if (r.handles[0] == NULL)
continue; // process doesn't own fifo
debug_printf ("pid %d, handles[0] %p, handles[1] %p", p->pid,