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/* HTHREADS.H (c) Copyright Roger Bowler, 1999-2009 */
/* Hercules Threading Macros and Functions */
#ifndef _HTHREADS_H
#define _HTHREADS_H
#include "hercules.h"
#if defined(OPTION_FTHREADS)
///////////////////////////////////////////////////////////////////////
// FTHREADS
///////////////////////////////////////////////////////////////////////
#include "fthreads.h"
typedef fthread_t TID;
typedef fthread_mutex_t LOCK;
typedef fthread_cond_t COND;
typedef fthread_attr_t ATTR;
#define create_thread(ptid,pat,fn,arg,nm) fthread_create((ptid),(pat),(PFT_THREAD_FUNC)&(fn),(arg),nm)
#define join_thread(tid,pcode) fthread_join((tid),(pcode))
#define initialize_lock(plk) fthread_mutex_init((plk),NULL)
#define destroy_lock(plk) fthread_mutex_destroy((plk))
#define obtain_lock(plk) fthread_mutex_lock((plk))
#define try_obtain_lock(plk) fthread_mutex_trylock((plk))
#define test_lock(plk) \
(fthread_mutex_trylock((plk)) ? 1 : fthread_mutex_unlock((plk)) )
#define release_lock(plk) fthread_mutex_unlock((plk))
#define initialize_condition(pcond) fthread_cond_init((pcond))
#define destroy_condition(pcond) fthread_cond_destroy((pcond))
#define signal_condition(pcond) fthread_cond_signal((pcond))
#define broadcast_condition(pcond) fthread_cond_broadcast((pcond))
#define wait_condition(pcond,plk) fthread_cond_wait((pcond),(plk))
#define timed_wait_condition(pcond,plk,tm) fthread_cond_timedwait((pcond),(plk),(tm))
#define initialize_detach_attr(pat) fthread_attr_init((pat)); \
fthread_attr_setstacksize((pat),1048576); \
fthread_attr_setdetachstate((pat),FTHREAD_CREATE_DETACHED)
#define initialize_join_attr(pat) fthread_attr_init((pat)); \
fthread_attr_setstacksize((pat),1048576); \
fthread_attr_setdetachstate((pat),FTHREAD_CREATE_JOINABLE)
#define detach_thread(tid) fthread_detach((tid))
#define signal_thread(tid,signo) fthread_kill((tid),(signo))
#define thread_id() fthread_self()
#define exit_thread(exitvar_ptr) fthread_exit((exitvar_ptr))
#define equal_threads(tid1,tid2) fthread_equal((tid1),(tid2))
#else // !defined(OPTION_FTHREADS)
///////////////////////////////////////////////////////////////////////
// PTHREADS
///////////////////////////////////////////////////////////////////////
#include <pthread.h>
typedef pthread_t TID;
typedef pthread_mutex_t LOCK;
typedef pthread_cond_t COND;
typedef pthread_attr_t ATTR;
#define initialize_lock(plk) \
pthread_mutex_init((plk),NULL)
#define destroy_lock(plk) \
pthread_mutex_destroy((plk))
#define obtain_lock(plk) \
pthread_mutex_lock((plk))
#define try_obtain_lock(plk) \
pthread_mutex_trylock((plk))
#define release_lock(plk) \
pthread_mutex_unlock((plk))
#define test_lock(plk) \
(pthread_mutex_trylock((plk)) ? 1 : pthread_mutex_unlock((plk)) )
#define initialize_condition(pcond) \
pthread_cond_init((pcond),NULL)
#define destroy_condition(pcond) \
pthread_cond_destroy((pcond))
#define signal_condition(pcond) \
pthread_cond_signal((pcond))
#define broadcast_condition(pcond) \
pthread_cond_broadcast((pcond))
#define wait_condition(pcond,plk) \
pthread_cond_wait((pcond),(plk))
#define timed_wait_condition(pcond,plk,timeout) \
pthread_cond_timedwait((pcond),(plk),(timeout))
#define initialize_detach_attr(pat) \
pthread_attr_init((pat)); \
pthread_attr_setstacksize((pat),1048576); \
pthread_attr_setdetachstate((pat),PTHREAD_CREATE_DETACHED)
#define initialize_join_attr(pat) \
pthread_attr_init((pat)); \
pthread_attr_setstacksize((pat),1048576); \
pthread_attr_setdetachstate((pat),PTHREAD_CREATE_JOINABLE)
#define join_thread(tid,pcode) \
pthread_join((tid),(pcode))
#define detach_thread(tid) \
pthread_detach((tid))
typedef void*THREAD_FUNC(void*);
#define create_thread(ptid,pat,fn,arg,nm) \
pthread_create(ptid,pat,(THREAD_FUNC*)&(fn),arg)
#define exit_thread(_code) \
pthread_exit((_code))
#define signal_thread(tid,signo) \
pthread_kill((tid),(signo))
#define thread_id() \
pthread_self()
#define equal_threads(tid1,tid2) \
pthread_equal(tid1,tid2)
#endif // defined(OPTION_FTHREADS)
///////////////////////////////////////////////////////////////////////
// 'Thread' tracing...
///////////////////////////////////////////////////////////////////////
#ifdef OPTION_PTTRACE
#include "pttrace.h"
#undef initialize_lock
#define initialize_lock(plk) \
ptt_pthread_mutex_init((plk),NULL,PTT_LOC)
#undef obtain_lock
#define obtain_lock(plk) \
ptt_pthread_mutex_lock((plk),PTT_LOC)
#undef try_obtain_lock
#define try_obtain_lock(plk) \
ptt_pthread_mutex_trylock((plk),PTT_LOC)
#undef test_lock
#define test_lock(plk) \
(ptt_pthread_mutex_trylock ((plk),PTT_LOC) ? 1 : \
ptt_pthread_mutex_unlock ((plk),PTT_LOC))
#undef release_lock
#define release_lock(plk) \
ptt_pthread_mutex_unlock((plk),PTT_LOC)
#undef initialize_condition
#define initialize_condition(pcond) \
ptt_pthread_cond_init((pcond),NULL,PTT_LOC)
#undef signal_condition
#define signal_condition(pcond) \
ptt_pthread_cond_signal((pcond),PTT_LOC)
#undef broadcast_condition
#define broadcast_condition(pcond) \
ptt_pthread_cond_broadcast((pcond),PTT_LOC)
#undef wait_condition
#define wait_condition(pcond,plk) \
ptt_pthread_cond_wait((pcond),(plk),PTT_LOC)
#undef timed_wait_condition
#define timed_wait_condition(pcond,plk,timeout) \
ptt_pthread_cond_timedwait((pcond),(plk),(timeout),PTT_LOC)
#undef create_thread
#if defined(OPTION_FTHREADS)
#define create_thread(ptid,pat,fn,arg,nm) \
ptt_pthread_create((ptid),(pat),(PFT_THREAD_FUNC)&(fn),(arg),(nm),PTT_LOC)
#else
#define create_thread(ptid,pat,fn,arg,nm) \
ptt_pthread_create(ptid,pat,(THREAD_FUNC*)&(fn),arg,(nm),PTT_LOC)
#endif
#undef join_thread
#define join_thread(tid,pcode) \
ptt_pthread_join((tid),(pcode),PTT_LOC)
#undef detach_thread
#define detach_thread(tid) \
ptt_pthread_detach((tid),PTT_LOC)
#undef signal_thread
#define signal_thread(tid,signo) \
ptt_pthread_kill((tid),(signo),PTT_LOC)
#endif // OPTION_PTTRACE
///////////////////////////////////////////////////////////////////////
// (Misc)
///////////////////////////////////////////////////////////////////////
/* Pattern for displaying the thread_id */
#define TIDPAT "%8.8lX"
/*-------------------------------------------------------------------*/
/* Pipe signaling support... */
/*-------------------------------------------------------------------*/
#if defined( OPTION_WAKEUP_SELECT_VIA_PIPE )
#define RECV_PIPE_SIGNAL( rfd, lock, flag ) \
do { \
int f; int saved_errno=get_HSO_errno(); BYTE c=0; \
obtain_lock(&(lock)); \
if ((f=(flag))>=1) (flag)=0; \
release_lock(&(lock)); \
if (f>=1) \
VERIFY(read_pipe((rfd),&c,1)==1); \
set_HSO_errno(saved_errno); \
} while (0)
#define SEND_PIPE_SIGNAL( wfd, lock, flag ) \
do { \
int f; int saved_errno=get_HSO_errno(); BYTE c=0; \
obtain_lock(&(lock)); \
if ((f=(flag))<=0) (flag)=1; \
release_lock(&(lock)); \
if (f<=0) \
VERIFY(write_pipe((wfd),&c,1)==1); \
set_HSO_errno(saved_errno); \
} while (0)
#define SUPPORT_WAKEUP_SELECT_VIA_PIPE( pipe_rfd, maxfd, prset ) \
FD_SET((pipe_rfd),(prset)); \
(maxfd)=(maxfd)>(pipe_rfd)?(maxfd):(pipe_rfd)
#define SUPPORT_WAKEUP_CONSOLE_SELECT_VIA_PIPE( maxfd, prset ) SUPPORT_WAKEUP_SELECT_VIA_PIPE( sysblk.cnslrpipe, (maxfd), (prset) )
#define SUPPORT_WAKEUP_SOCKDEV_SELECT_VIA_PIPE( maxfd, prset ) SUPPORT_WAKEUP_SELECT_VIA_PIPE( sysblk.sockrpipe, (maxfd), (prset) )
#define RECV_CONSOLE_THREAD_PIPE_SIGNAL() RECV_PIPE_SIGNAL( sysblk.cnslrpipe, sysblk.cnslpipe_lock, sysblk.cnslpipe_flag )
#define RECV_SOCKDEV_THREAD_PIPE_SIGNAL() RECV_PIPE_SIGNAL( sysblk.sockrpipe, sysblk.sockpipe_lock, sysblk.sockpipe_flag )
#define SIGNAL_CONSOLE_THREAD() SEND_PIPE_SIGNAL( sysblk.cnslwpipe, sysblk.cnslpipe_lock, sysblk.cnslpipe_flag )
#define SIGNAL_SOCKDEV_THREAD() SEND_PIPE_SIGNAL( sysblk.sockwpipe, sysblk.sockpipe_lock, sysblk.sockpipe_flag )
#else // !defined( OPTION_WAKEUP_SELECT_VIA_PIPE )
#define RECV_PIPE_SIGNAL( rfd, lock, flag )
#define SEND_PIPE_SIGNAL( wfd, lock, flag )
#define SUPPORT_WAKEUP_SELECT_VIA_PIPE( pipe_rfd, maxfd, prset )
#define SUPPORT_WAKEUP_CONSOLE_SELECT_VIA_PIPE( maxfd, prset )
#define SUPPORT_WAKEUP_SOCKDEV_SELECT_VIA_PIPE( maxfd, prset )
#define RECV_CONSOLE_THREAD_PIPE_SIGNAL()
#define RECV_SOCKDEV_THREAD_PIPE_SIGNAL()
#define SIGNAL_CONSOLE_THREAD() signal_thread( sysblk.cnsltid, SIGUSR2 )
#define SIGNAL_SOCKDEV_THREAD() signal_thread( sysblk.socktid, SIGUSR2 )
#endif // defined( OPTION_WAKEUP_SELECT_VIA_PIPE )
#endif // _HTHREADS_H
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