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TMXR: Remove all SIM_ASYNCH_MUX dependent code

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Asynchronous MUX functionality was added long ago and never completely
tested and thus never completed and never actually used.

All of what it was supposed to achieve was independently achieved when
bit rate speed functionality was added.
This commit is contained in:
Mark Pizzolato
2023-01-21 09:12:45 -10:00
parent a4360bc492
commit a79c583053
5 changed files with 8 additions and 823 deletions
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41
sim_defs.h
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@@ -616,11 +616,6 @@ struct UNIT {
UNIT *a_next; /* next asynch active */
int32 a_event_time;
ACTIVATE_API a_activate_call;
/* Asynchronous Polling control */
/* These fields should only be referenced when holding the sim_tmxr_poll_lock */
t_bool a_polling_now; /* polling active flag */
int32 a_poll_waiter_count; /* count of polling threads */
/* waiting for this unit */
/* Asynchronous Timer control */
double a_due_time; /* due time for timer event */
double a_due_gtime; /* due time (in instructions) for timer event */
@@ -670,7 +665,7 @@ struct UNIT {
/* These flags are only set dynamically */
#define UNIT_ATTMULT 0000001 /* Allow multiple attach commands */
#define UNIT_TM_POLL 0000002 /* TMXR Polling unit */
#define UNIT_TM_POLL 0000002 /* TMXR Polling unit (connect, transmit or receive) */
#define UNIT_NO_FIO 0000004 /* fileref is NOT a FILE * */
#define UNIT_DISK_CHK 0000010 /* disk data debug checking (sim_disk) */
#define UNIT_TMR_UNIT 0000200 /* Unit registered as a calibrated timer */
@@ -916,7 +911,7 @@ struct MEMFILE {
#ifdef SIM_ASYNCH_IO
#define UDATA(act,fl,cap) NULL,act,NULL,NULL,NULL,NULL,0,0,(fl),0,(cap),0,NULL,0,0,NULL,NULL,0,0,NULL,NULL,NULL,0,0,0,NULL,0,NULL,NULL,0,NULL,\
NULL,NULL,NULL,0,NULL,0,0,0,0,0
NULL,NULL,NULL,0,NULL,0,0,0
#else
#define UDATA(act,fl,cap) NULL,act,NULL,NULL,NULL,NULL,0,0,(fl),0,(cap),0,NULL,0,0,NULL,NULL,0,0,NULL,NULL,NULL,0,0,0,NULL,0,NULL,NULL,0,NULL
#endif
@@ -1220,35 +1215,6 @@ extern int32 sim_asynch_inst_latency;
#define AIO_UNLOCK \
pthread_mutex_unlock(&sim_asynch_lock)
#define AIO_IS_ACTIVE(uptr) (((uptr)->a_is_active ? (uptr)->a_is_active (uptr) : FALSE) || ((uptr)->a_next))
#if defined(SIM_ASYNCH_MUX)
#define AIO_CANCEL(uptr) \
if (((uptr)->dynflags & UNIT_TM_POLL) && \
!((uptr)->next) && !((uptr)->a_next)) { \
(uptr)->a_polling_now = FALSE; \
sim_tmxr_poll_count -= (uptr)->a_poll_waiter_count; \
(uptr)->a_poll_waiter_count = 0; \
}
#endif /* defined(SIM_ASYNCH_MUX) */
#if !defined(AIO_CANCEL)
#define AIO_CANCEL(uptr)
#endif /* !defined(AIO_CANCEL) */
#define AIO_EVENT_BEGIN(uptr) \
do { \
int __was_poll = uptr->dynflags & UNIT_TM_POLL
#define AIO_EVENT_COMPLETE(uptr, reason) \
if (__was_poll) { \
pthread_mutex_lock (&sim_tmxr_poll_lock); \
uptr->a_polling_now = FALSE; \
if (uptr->a_poll_waiter_count) { \
sim_tmxr_poll_count -= uptr->a_poll_waiter_count; \
uptr->a_poll_waiter_count = 0; \
if (0 == sim_tmxr_poll_count) \
pthread_cond_broadcast (&sim_tmxr_poll_cond); \
} \
pthread_mutex_unlock (&sim_tmxr_poll_lock); \
} \
AIO_UPDATE_QUEUE; \
} while (0)
#if defined(__DECC_VER)
#include <builtins>
@@ -1388,10 +1354,7 @@ extern int32 sim_asynch_inst_latency;
#define AIO_LOCK
#define AIO_UNLOCK
#define AIO_CLEANUP
#define AIO_EVENT_BEGIN(uptr)
#define AIO_EVENT_COMPLETE(uptr, reason)
#define AIO_IS_ACTIVE(uptr) FALSE
#define AIO_CANCEL(uptr)
#define AIO_SET_INTERRUPT_LATENCY(instpersec)
#define AIO_TLS
#endif /* SIM_ASYNCH_IO */