Fixes <http://bugs.gnu.org/15683>.
Reported by David Pirotte <david@altosw.be>.
* module/ice-9/popen.scm: Import (ice-9 threads) and (srfi srfi-9).
(<pipe-info>): New record type.
(port/pid-table): Mark as deprecated in comment.
(port/pid-table-mutex): New variable.
(open-pipe*): Store the pid in the pipe-info record, and store the
pipe-info as a port property. Guard the pipe-info instead of the
port. Lock 'port/pid-table-mutex' while mutating 'port/pid-table'.
(fetch-pid): Removed.
(fetch-pipe-info): New procedure.
(close-process-quietly): Removed.
(close-pipe): Use 'fetch-pipe-info' instead of 'fetch-pid'. Clear
the pid from the pipe-info. Improve error messages.
(reap-pipes): Adapt to the fact that the pipe-info is now guarded
instead of the port. Incorporate the 'waitpid' code that was
previously in 'close-process-quietly', but let the port finalizer
close the port. Clear the pid from the pipe-info.
* libguile/posix.c (scm_open_process): Return the ports as values
instead of calling out to Scheme again to make-rw-port. This
function is private to (ice-9 popen).
* module/ice-9/popen.scm (open-pipe*): Adapt to change.
* libguile/posix.c (scm_open_process): Rewrite in C, so as to avoid
allocations and other calls that are not async-signal-safe.
(scm_init_popen, scm_init_posix): Register popen extension.
* module/ice-9/popen.scm: Load the popen extension, to get open-process.
* module/ice-9/boot-9.scm:
* module/ice-9/popen.scm:
* module/ice-9/pretty-print.scm:
* module/ice-9/r4rs.scm:
* module/rnrs/io/ports.scm:
* module/texinfo/string-utils.scm:
* module/web/http.scm:
* module/web/request.scm:
* module/web/response.scm:
* test-suite/vm/run-vm-tests.scm: Make the variable names in Scheme docstrings more
consistent. Replace a few instances of @var with @code when appropriate.
* module/ice-9/popen.scm (open-pipe*): Hack around the lack of an
after-gc hook, and pump the pipes guardian here in the procedure that
adds to the guardian.
* module/ice-9/boot-9.scm (*repl-level*): New global fluid, moved here
from (system repl common).
(batch-mode?): Reimplement in terms of *repl-level*.
(ensure-batch-mode!): A replacement for set-batch-mode?!.
* module/ice-9/deprecated.scm (set-batch-mode?!): Deprecate.
* module/ice-9/popen.scm (open-process): Use ensure-batch-mode!.
* module/ice-9/scm-style-repl.scm (error-catching-loop): Override
ensure-batch-mode!.
* module/system/repl/common.scm: Remove *repl-level*.
Moved ice-9/ and oop/ under module/, with the idea being that we have
only scheme under module/. Adjusted configure.in and Makefile.am
appropriately. Put oop/ at the end of the compilation order.
