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* fhandler.h (fhandler_console): Remove tcsetpgrp.

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* fhandler_console.cc (fhandler_console::tcsetpgrp): Eliminate.
* fork.cc (fork_parent): Avoid returning same pid twice in a row regardless of
OS.
* pinfo.cc (pinfo::init): Rename create argument to flags and treat it as such.
* signal.cc (set_sigcatchers): New function.
(signal): Use set_sigcatchers to increment or decrement sigcatcher tracker.
(sigaction): Ditto.  Add debugging output.
* spawn.cc (spawn_guts): Always quote first argv[0] argument when it's a
COMSPEC shell.
This commit is contained in:
Christopher Faylor
2000-10-21 04:53:49 +00:00
parent e9921bcbaa
commit b0de2aa284
8 changed files with 57 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
winsup/cygwin/signal.cc
View File

@ -23,6 +23,23 @@ int sigcatchers; /* FIXME: Not thread safe. */
#define sigtrapped(func) ((func) != SIG_IGN && (func) != SIG_DFL)
static inline void
set_sigcatchers (void (*oldsig) (int), void (*cursig) (int))
{
#ifdef DEBUGGING
int last_sigcatchers = sigcatchers;
#endif
if (!sigtrapped (oldsig) && sigtrapped (cursig))
sigcatchers++;
else if (sigtrapped (oldsig) && !sigtrapped (cursig))
sigcatchers--;
#ifdef DEBUGGING
if (last_sigcatchers != sigcatchers)
sigproc_printf ("last %d, old %d, cur %p, cur %p", last_sigcatchers,
sigcatchers, oldsig, cursig);
#endif
}
extern "C" _sig_func_ptr
signal (int sig, _sig_func_ptr func)
{
@ -39,10 +56,7 @@ signal (int sig, _sig_func_ptr func)
prev = myself->getsig (sig).sa_handler;
myself->getsig (sig).sa_handler = func;
myself->getsig (sig).sa_mask = 0;
if (!sigtrapped (prev) && sigtrapped (func))
sigcatchers++;
else if (sigtrapped (prev) && !sigtrapped (func))
sigcatchers--;
set_sigcatchers (prev, func);
syscall_printf ("%p = signal (%d, %p)", prev, sig, func);
return prev;
@ -235,6 +249,7 @@ killpg (int pgrp, int sig)
extern "C" int
sigaction (int sig, const struct sigaction *newact, struct sigaction *oldact)
{
sigproc_printf ("sig %d, newact %p, oldact %p", sig, newact, oldact);
/* check that sig is in right range */
if (sig < 0 || sig >= NSIG)
{
@ -257,10 +272,7 @@ sigaction (int sig, const struct sigaction *newact, struct sigaction *oldact)
sig_clear (sig);
if (newact->sa_handler == SIG_DFL && sig == SIGCHLD)
sig_clear (sig);
if (!sigtrapped (oa.sa_handler) && sigtrapped (newact->sa_handler))
sigcatchers++;
else if (sigtrapped (oa.sa_handler) && !sigtrapped (newact->sa_handler))
sigcatchers--;
set_sigcatchers (oa.sa_handler, newact->sa_handler);
}
if (oldact)