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* cygthread.h (cygthread::stack_ptr): New element.

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(cygthread::detach): Accept a "wait_for_signal" argument.
(cygthread::terminate_thread): New function.
* cygthread.cc (cygthread::stub): Set stack pointer argument.
(cygthread::terminate_thread): New function.  Forcibly terminate thread.
(cygthread::detach): Optionally wait for signals and kill thread when signal
arrives.
* exceptions.cc (signal_exit): Set signal_arrived prior to exiting to wake up
anything blocking on signals.
* fhandler.h (fhandler_base::set_r_no_interrupt): Change to accept bool
argument.
(fhandler_pipe::ready_for_read): Declare.
* pipe.cc (pipeargs): New structure.
(read_pipe): New thread stub wrapper for normal pipe read.
(fhandler_pipe::read): Modify to call reader in a cygthread, terminating on
signal, as appropriate.
* select.cc (fhandler_pipe::ready_for_read): Define new function.
This commit is contained in:
Christopher Faylor
2002-12-11 04:00:04 +00:00
parent ea01c7f5d2
commit 1d380f593a
7 changed files with 146 additions and 33 deletions
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27
winsup/cygwin/pipe.cc
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@@ -22,6 +22,7 @@ details. */
#include "cygheap.h"
#include "thread.h"
#include "pinfo.h"
#include "cygthread.h"
static unsigned pipecount;
static const NO_COPY char pipeid_fmt[] = "stupid_pipe.%u.%u";
@@ -50,14 +51,36 @@ fhandler_pipe::set_close_on_exec (int val)
set_inheritance (writepipe_exists, val);
}
struct pipeargs
{
fhandler_base *fh;
void *ptr;
size_t len;
int res;
};
static DWORD WINAPI
read_pipe (void *arg)
{
pipeargs *pi = (pipeargs *) arg;
pi->res = pi->fh->fhandler_base::read (pi->ptr, pi->len);
return 0;
}
int __stdcall
fhandler_pipe::read (void *in_ptr, size_t in_len)
{
if (broken_pipe)
return 0;
int res = this->fhandler_base::read (in_ptr, in_len);
pipeargs pi;
pi.fh = this;
pi.ptr = in_ptr;
pi.len = in_len;
pi.res = -1;
cygthread *th = new cygthread (read_pipe, &pi, "read_pipe");
th->detach (1);
(void) ReleaseMutex (guard);
return res;
return pi.res;
}
int fhandler_pipe::close ()