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* scmsigs.h, async.h: updated.

Browse source 
* _scm.h: if HAVE_RESTARTS is defined then don't use a SYSCALL
loop.

* posix.c (scm_uname): interpret only negative values as an error.
Solaris normally returns a positive value.

* script.c (scm_compile_shell_switches): if we are not going into
an interactive repl, set scm_mask_ints to zero so that asyncs can
run.

* simpos.c (scm_system):  don't ignore/unignore signals around
the "system" call.

* posix.c (scm_open_pipe): don't ignore/unignore signals around
the "popen" call.

* init.c (scm_boot_guile_1): don't call scm_init_signals, it's
done in boot-9.scm instead.

* scmsigs.c, async.c: Major rewriting of signal handling code.
(scm_sigaction): new procedure.
(scm_sleep): don't wrap sleep in SCM_SYSCALL, it would mess up the
timing.
(scm_raise): return unspecified, throw error on failure.

* boot-9.scm: signal-handler, alarm-thunk: removed.
don't define ticks-interrupt etc.
top-repl: install signal handlers for SIGINT, SIGFPE, SIGSEGV, SIGBUS
during call to scm-style-repl.

* acconfig.h: mention HAVE_RESTARTS.
* configure.in: check for sigaction and restartable system calls.
This commit is contained in:
Gary Houston 1997-05-31 19:02:38 +00:00
parent 19da35d025
commit e1a191a8ca
18 changed files with 557 additions and 634 deletions
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4
libguile/posix.c
View file

@ -811,7 +811,7 @@ scm_uname ()
SCM ans = scm_make_vector(SCM_MAKINUM(5), SCM_UNSPECIFIED, SCM_BOOL_F);
SCM *ve = SCM_VELTS (ans);
SCM_DEFER_INTS;
if (uname (&buf))
if (uname (&buf) < 0)
scm_syserror (s_uname);
ve[0] = scm_makfrom0str (buf.sysname);
ve[1] = scm_makfrom0str (buf.nodename);
@ -921,9 +921,7 @@ scm_open_pipe (pipestr, modes)
modes = scm_makfromstr (SCM_ROCHARS (modes), SCM_ROLENGTH (modes), 0);
SCM_NEWCELL (z);
SCM_DEFER_INTS;
scm_ignore_signals ();
SCM_SYSCALL (f = popen (SCM_ROCHARS (pipestr), SCM_ROCHARS (modes)));
scm_unignore_signals ();
if (!f)
scm_syserror (s_open_pipe);
pt = scm_add_to_port_table (z);