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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "primpl.h"
#include <signal.h>
#include <unistd.h>
#include <memory.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <errno.h>
/*
* Make sure _PRSockLen_t is 32-bit, because we will cast a PRUint32* or
* PRInt32* pointer to a _PRSockLen_t* pointer.
*/
#define _PRSockLen_t int
/*
** Global lock variable used to bracket calls into rusty libraries that
** aren't thread safe (like libc, libX, etc).
*/
static PRLock *_pr_rename_lock = NULL;
static PRMonitor *_pr_Xfe_mon = NULL;
/*
* Variables used by the GC code, initialized in _MD_InitSegs().
* _pr_zero_fd should be a static variable. Unfortunately, there is
* still some Unix-specific code left in function PR_GrowSegment()
* in file memory/prseg.c that references it, so it needs
* to be a global variable for now.
*/
PRInt32 _pr_zero_fd = -1;
static PRLock *_pr_md_lock = NULL;
sigset_t timer_set;
void _PR_UnixInit()
{
struct sigaction sigact;
int rv;
sigemptyset(&timer_set);
sigact.sa_handler = SIG_IGN;
sigemptyset(&sigact.sa_mask);
sigact.sa_flags = 0;
rv = sigaction(SIGPIPE, &sigact, 0);
PR_ASSERT(0 == rv);
_pr_rename_lock = PR_NewLock();
PR_ASSERT(NULL != _pr_rename_lock);
_pr_Xfe_mon = PR_NewMonitor();
PR_ASSERT(NULL != _pr_Xfe_mon);
}
/*
*-----------------------------------------------------------------------
*
* PR_Now --
*
* Returns the current time in microseconds since the epoch.
* The epoch is midnight January 1, 1970 GMT.
* The implementation is machine dependent. This is the Unix
* implementation.
* Cf. time_t time(time_t *tp)
*
*-----------------------------------------------------------------------
*/
PR_IMPLEMENT(PRTime)
PR_Now(void)
{
struct timeval tv;
PRInt64 s, us, s2us;
GETTIMEOFDAY(&tv);
LL_I2L(s2us, PR_USEC_PER_SEC);
LL_I2L(s, tv.tv_sec);
LL_I2L(us, tv.tv_usec);
LL_MUL(s, s, s2us);
LL_ADD(s, s, us);
return s;
}
PRIntervalTime
_PR_UNIX_GetInterval()
{
struct timeval time;
PRIntervalTime ticks;
(void)GETTIMEOFDAY(&time); /* fallicy of course */
ticks = (PRUint32)time.tv_sec * PR_MSEC_PER_SEC; /* that's in milliseconds */
ticks += (PRUint32)time.tv_usec / PR_USEC_PER_MSEC; /* so's that */
return ticks;
} /* _PR_SUNOS_GetInterval */
PRIntervalTime _PR_UNIX_TicksPerSecond()
{
return 1000; /* this needs some work :) */
}
/************************************************************************/
/*
** Special hacks for xlib. Xlib/Xt/Xm is not re-entrant nor is it thread
** safe. Unfortunately, neither is mozilla. To make these programs work
** in a pre-emptive threaded environment, we need to use a lock.
*/
void PR_XLock()
{
PR_EnterMonitor(_pr_Xfe_mon);
}
void PR_XUnlock()
{
PR_ExitMonitor(_pr_Xfe_mon);
}
PRBool PR_XIsLocked()
{
return (PR_InMonitor(_pr_Xfe_mon)) ? PR_TRUE : PR_FALSE;
}
void PR_XWait(int ms)
{
PR_Wait(_pr_Xfe_mon, PR_MillisecondsToInterval(ms));
}
void PR_XNotify(void)
{
PR_Notify(_pr_Xfe_mon);
}
void PR_XNotifyAll(void)
{
PR_NotifyAll(_pr_Xfe_mon);
}
#if !defined(BEOS)
#ifdef HAVE_BSD_FLOCK
#include <sys/file.h>
PR_IMPLEMENT(PRStatus)
_MD_LOCKFILE (PRInt32 f)
{
PRInt32 rv;
rv = flock(f, LOCK_EX);
if (rv == 0)
return PR_SUCCESS;
_PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO());
return PR_FAILURE;
}
PR_IMPLEMENT(PRStatus)
_MD_TLOCKFILE (PRInt32 f)
{
PRInt32 rv;
rv = flock(f, LOCK_EX|LOCK_NB);
if (rv == 0)
return PR_SUCCESS;
_PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO());
return PR_FAILURE;
}
PR_IMPLEMENT(PRStatus)
_MD_UNLOCKFILE (PRInt32 f)
{
PRInt32 rv;
rv = flock(f, LOCK_UN);
if (rv == 0)
return PR_SUCCESS;
_PR_MD_MAP_FLOCK_ERROR(_MD_ERRNO());
return PR_FAILURE;
}
#else
PR_IMPLEMENT(PRStatus)
_MD_LOCKFILE (PRInt32 f)
{
PRInt32 rv;
rv = lockf(f, F_LOCK, 0);
if (rv == 0)
return PR_SUCCESS;
_PR_MD_MAP_LOCKF_ERROR(_MD_ERRNO());
return PR_FAILURE;
}
PR_IMPLEMENT(PRStatus)
_MD_TLOCKFILE (PRInt32 f)
{
PRInt32 rv;
rv = lockf(f, F_TLOCK, 0);
if (rv == 0)
return PR_SUCCESS;
_PR_MD_MAP_LOCKF_ERROR(_MD_ERRNO());
return PR_FAILURE;
}
PR_IMPLEMENT(PRStatus)
_MD_UNLOCKFILE (PRInt32 f)
{
PRInt32 rv;
rv = lockf(f, F_ULOCK, 0);
if (rv == 0)
return PR_SUCCESS;
_PR_MD_MAP_LOCKF_ERROR(_MD_ERRNO());
return PR_FAILURE;
}
#endif
PR_IMPLEMENT(PRStatus)
_MD_GETHOSTNAME (char *name, PRUint32 namelen)
{
PRIntn rv;
rv = gethostname(name, namelen);
if (0 == rv) {
return PR_SUCCESS;
}
_PR_MD_MAP_GETHOSTNAME_ERROR(_MD_ERRNO());
return PR_FAILURE;
}
#endif
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