newlib/winsup/cygwin/lsearch.cc

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* wininfo.h (wininfo::timer_active): Delete. (wininfo::itv): Ditto. (wininfo::start_time): Ditto. (wininfo::window_started): Ditto. (wininfo::getitimer): Ditto. (wininfo::setitimer): Ditto. (wininfo::wininfo): Ditto. (wininfo::lock): New method. (wininfo::release): Ditto. * window.cc: Use new lock/acquire wininfo methods throughout. (wininfo::wininfo): Delete (wininfo::getitimer): Ditto. (wininfo::setitimer): Ditto. (getitimer): Ditto. (setitimer): Ditto. (ualarm): Ditto. (alarm): Ditto. (wininfo::lock): Define new function. (wininfo::release): Ditto. (wininfo::process): Delete WM_TIMER handling. * timer.cc (struct timetracker): Delete it, flags. Add it_interval, interval_us, sleepto_us, running, init_muto(), syncthread, and gettime(). (ttstart): Make NO_COPY. (lock_timer_tracker): New class. (timer_tracker::timer_tracker): Distinguish ttstart case. (timer_tracker::~timer_tracker): New destructor. Clean out events, and reset magic. (timer_tracker::init_muto): New method. (to_us): Round up as per POSIX. (timer_thread): Reorganize to match timer_tracker::settime and timer_tracker::gettime. Call sig_send without wait. Call auto_release. (timer_tracker::settime): Reorganize logic to avoid race. Call gettime to recover old value. (timer_tracker::gettime): New method. (timer_create): Properly set errno on invalid timerid. Use new lock_timer_tracker method. (timer_delete): Ditto. Simplify code slightly. (timer_gettime): New function. (fixup_timers_after_fork): Reinit ttstart. (getitimer): New implementation. (setitimer): Ditto. (ualarm): Ditto. (alarm): Ditto. * cygwin.din: Export timer_gettime. * winsup.h: Remove has has_visible_window_station declaration. * Makefile.in (DLL_OFILES): Add lsearch.o. * cygthread.h (cygthread::notify_detached): New element. (cygthread::cygthread): Take optional fourth argument signifying event to signal on thread completion. * cygthread.cc (cygthread::stub): Signal notify_detached event, if it exists. (cygthread::cygthread): Initialize notify_detached from fourth argument. (cygthread::detach): Wait for notify_detached field is present. * lsearch.cc: New file. * search.h: Ditto. * include/cygwin/version.h: Bump API minor number to 126. * cygwin.din: Export lsearch, lfind.
2005-03-27 03:57:38 +02:00
/* Initial implementation:
Copyright (c) 2002 Robert Drehmel
All rights reserved.
As long as the above copyright statement and this notice remain
unchanged, you can do what ever you want with this file. */
#include <sys/types.h>
#include <sys/cdefs.h>
#define _SEARCH_PRIVATE
#include <search.h>
#include <stdint.h> /* for uint8_t */
#include <stdlib.h> /* for NULL */
#include <string.h> /* for memcpy () prototype */
static void *lwork (const void *, const void *, size_t *, size_t,
int (*) (const void *, const void *), int);
extern "C" void *
lsearch (const void *key, void *base, size_t *nelp, size_t width,
int (*compar) (const void *, const void *))
{
return lwork (key, base, nelp, width, compar, 1);
}
extern "C" void *
lfind (const void *key, const void *base, size_t *nelp, size_t width,
int (*compar) (const void *, const void *))
{
return lwork (key, base, nelp, width, compar, 0);
}
static void *
lwork (const void *key, const void *base, size_t *nelp, size_t width,
int (*compar) (const void *, const void *), int addelem)
{
uint8_t *ep, *endp;
/* Cast to an integer value first to avoid the warning for removing
'const' via a cast. */
ep = (uint8_t *) (uintptr_t)base;
for (endp = (uint8_t *) (ep + width * *nelp); ep < endp; ep += width)
if (compar (key, ep) == 0)
return ep;
/* lfind () shall return when the key was not found. */
if (!addelem)
return NULL;
/* lsearch () adds the key to the end of the table and increments
the number of elements. */
memcpy (endp, key, width);
++*nelp;
return endp;
}