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sim_frontpanel.c
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/* sim_frontpanel.c: simulator frontpanel API
Copyright (c) 2015, Mark Pizzolato
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
MARK PIZZOLATO BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of Mark Pizzolato shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Mark Pizzolato.
05-Feb-15 MP Initial implementation
01-Apr-15 MP Added register indirect, mem_examine and mem_deposit
03-Apr-15 MP Added logic to pass simulator startup messages in
panel error text if the connection to the simulator
shuts down while it is starting.
04-Apr-15 MP Added mount and dismount routines to connect and
disconnect removable media
This module provides interface between a front panel application and a simh
simulator. Facilities provide ways to gather information from and to
observe and control the state of a simulator.
The details of the 'wire protocol' are internal to the API interfaces
provided here and described in sim_frontpanel.h. These details are subject
to change from one sim_frontpanel version to the next, while all efforts
will be made to retain any prior sim_frontpanel API interfaces.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include "sim_sock.h"
#include "sim_frontpanel.h"
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <errno.h>
#include <signal.h>
#include <pthread.h>
#if defined(_WIN32)
#include <process.h>
#include <windows.h>
#include <winerror.h>
#define sleep(n) Sleep(n*1000)
#define msleep(n) Sleep(n)
#define strtoull _strtoui64
#define CLOCK_REALTIME 0
int clock_gettime(int clk_id, struct timespec *tp)
{
unsigned long long now, unixbase;
unixbase = 116444736;
unixbase *= 1000000000;
GetSystemTimeAsFileTime((FILETIME*)&now);
now -= unixbase;
tp->tv_sec = (long)(now/10000000);
tp->tv_nsec = (now%10000000)*100;
return 0;
}
#else /* NOT _WIN32 */
#include <unistd.h>
#define msleep(n) usleep(1000*n)
#include <sys/wait.h>
#if defined (__APPLE__)
#define HAVE_STRUCT_TIMESPEC 1 /* OSX defined the structure but doesn't tell us */
#endif
/* on HP-UX, CLOCK_REALTIME is enum, not preprocessor define */
#if !defined(CLOCK_REALTIME) && !defined(__hpux)
#define CLOCK_REALTIME 1
#define NEED_CLOCK_GETTIME 1
#if !defined(HAVE_STRUCT_TIMESPEC)
#define HAVE_STRUCT_TIMESPEC
#if !defined(_TIMESPEC_DEFINED)
#define _TIMESPEC_DEFINED
struct timespec {
long tv_sec;
long tv_nsec;
};
#endif /* _TIMESPEC_DEFINED */
#endif /* HAVE_STRUCT_TIMESPEC */
#if defined(NEED_CLOCK_GETTIME)
int clock_gettime(int clk_id, struct timespec *tp)
{
struct timeval cur;
struct timezone foo;
gettimeofday (&cur, &foo);
tp->tv_sec = cur.tv_sec;
tp->tv_nsec = cur.tv_usec*1000;
return 0;
}
#endif /* defined(NEED_CLOCK_GETTIME) */
#endif /* !defined(CLOCK_REALTIME) && !defined(__hpux) */
#endif /* NOT _WIN32 */
typedef struct {
char *name;
char *device_name;
void *addr;
size_t size;
int indirect;
size_t element_count;
int *bits;
size_t bit_count;
} REG;
struct PANEL {
PANEL *parent; /* Device Panels can have parent panels */
char *path; /* simulator path */
char *config;
char *device_name; /* device name */
char *temp_config;
char hostport[64];
size_t device_count;
PANEL **devices;
SOCKET sock;
size_t reg_count;
REG *regs;
char *reg_query;
int new_register;
size_t reg_query_size;
unsigned long long array_element_data;
volatile OperationalState State;
unsigned long long simulation_time;
unsigned long long simulation_time_base;
pthread_t io_thread;
int io_thread_running;
pthread_mutex_t io_lock;
pthread_mutex_t io_send_lock;
pthread_mutex_t io_command_lock;
int command_count;
int io_waiting;
char *io_response;
char *halt_reason;
size_t io_response_data;
size_t io_response_size;
const char *completion_string;
pthread_cond_t io_done;
pthread_cond_t startup_done;
PANEL_DISPLAY_PCALLBACK callback;
pthread_t callback_thread;
int callback_thread_running;
void *callback_context;
int usecs_between_callbacks;
pthread_t debugflush_thread;
int debugflush_thread_running;
unsigned int sample_frequency;
unsigned int sample_dither_pct;
unsigned int sample_depth;
int debug;
char *simulator_version;
int radix;
FILE *Debug;
#if defined(_WIN32)
HANDLE hProcess;
DWORD dwProcessId;
#else
pid_t pidProcess;
#endif
};
/*
* Thread synchronization model:
*
* Mutex: Role:
* io_lock Serialize access to panel state variables
* acquired and released in application threads:
* _panel_register_query_string,
* _panel_establish_register_bits_collection,
* _panel_sendf
* acquired and released in internal threads:
* _panel_callback
* _panel_reader
* io_send_lock Serializes writes to a panel's sockets so that complete
* command/request data can be delivered before another
* thread attempts to write to the socket.
* acquired and released in: _panel_send
* io_command_lock To serialize frontpanel application command requests
* acquired and released in: _panel_get_registers,
* _panel_sendf_completion
*
* Condition Var: Sync Mutex: Purpose & Duration:
* io_done io_lock
* startup_done io_lock Indicate background thread setup is complete.
* Once signaled, it is immediately destroyed.
*/
static const char *sim_prompt = "sim> ";
static const char *register_repeat_prefix = "repeat every ";
static const char *register_repeat_stop = "repeat stop";
static const char *register_repeat_stop_all = "repeat stop all";
static const char *register_repeat_units = " usecs ";
static const char *register_get_prefix = "show time";
static const char *register_collect_prefix = "collect ";
static const char *register_collect_mid1 = " samples every ";
static const char *register_collect_mid2 = " cycles dither ";
static const char *register_collect_mid3 = " percent ";
static const char *register_get_postfix = "sampleout";
static const char *register_get_start = "# REGISTERS-START";
static const char *register_get_end = "# REGISTERS-DONE";
static const char *register_repeat_start = "# REGISTERS-REPEAT-START";
static const char *register_repeat_end = "# REGISTERS-REPEAT-DONE";
static const char *register_dev_echo = "# REGISTERS-FOR-DEVICE:";
static const char *register_ind_echo = "# REGISTER-INDIRECT:";
static const char *command_status = "ECHO Status:%STATUS%-%TSTATUS%";
static const char *command_done_echo = "# COMMAND-DONE";
static int little_endian;
static void *_panel_reader(void *arg);
static void *_panel_callback(void *arg);
static void *_panel_debugflusher(void *arg);
static int sim_panel_set_error (PANEL *p, const char *fmt, ...);
static pthread_key_t panel_thread_id;
#define TN_IAC 0xFFu /* -1 */ /* protocol delim */
#define TN_DONT 0xFEu /* -2 */ /* dont */
#define TN_DO 0xFDu /* -3 */ /* do */
#define TN_WONT 0xFCu /* -4 */ /* wont */
#define TN_WILL 0xFBu /* -5 */ /* will */
#define TN_BIN 0 /* bin */
#define TN_ECHO 1 /* echo */
#define TN_SGA 3 /* sga */
#define TN_CR 015 /* carriage return */
#define TN_LF 012 /* line feed */
#define TN_LINE 34 /* line mode */
static unsigned char mantra[] = {
TN_IAC, TN_WILL, TN_LINE,
TN_IAC, TN_WILL, TN_SGA,
TN_IAC, TN_WILL, TN_ECHO,
TN_IAC, TN_WILL, TN_BIN,
TN_IAC, TN_DO, TN_BIN
};
static void *
_panel_malloc (size_t size)
{
void *p = malloc (size);
if (p == NULL)
sim_panel_set_error (NULL, "Out of Memory");
return p;
}
/* Allow compiler to help validate printf style format arguments */
#if !defined __GNUC__
#define GCC_FMT_ATTR(n, m)
#endif
#if !defined(GCC_FMT_ATTR)
#define GCC_FMT_ATTR(n, m) __attribute__ ((format (__printf__, n, m)))
#endif
static void __panel_debug (PANEL *p, int dbits, const char *fmt, const char *buf, int bufsize, ...) GCC_FMT_ATTR(3, 6);
#define _panel_debug(p, dbits, fmt, buf, bufsize, ...) do { if (p && p->Debug && ((dbits) & p->debug)) __panel_debug (p, dbits, fmt, buf, bufsize, ##__VA_ARGS__);} while (0)
static void __panel_vdebug (PANEL *p, int dbits, const char *fmt, const char *buf, int bufsize, va_list arglist)
{
size_t obufsize = 10240 + 9*bufsize;
while (p && p->Debug && (dbits & p->debug)) {
int i, len;
struct timespec time_now;
char timestamp[32];
char threadname[50];
char *obuf = (char *)_panel_malloc (obufsize);
clock_gettime(CLOCK_REALTIME, &time_now);
sprintf (timestamp, "%lld.%03d ", (long long)(time_now.tv_sec), (int)(time_now.tv_nsec/1000000));
sprintf (threadname, "%s:%s ", p->parent ? p->device_name : "CPU", (pthread_getspecific (panel_thread_id)) ? (char *)pthread_getspecific (panel_thread_id) : "");
obuf[obufsize - 1] = '\0';
len = vsnprintf (obuf, obufsize - 1, fmt, arglist);
if (len < 0)
return;
/* If the formatted result didn't fit into the buffer, then grow the buffer and try again */
if (len >= (int)(obufsize - 9*bufsize)) {
obufsize = len + 1 + 9*bufsize;
free (obuf);
continue;
}
for (i=0; i<bufsize; ++i) {
switch ((unsigned char)buf[i]) {
case TN_CR:
sprintf (&obuf[strlen (obuf)], "_TN_CR_");
break;
case TN_LF:
sprintf (&obuf[strlen (obuf)], "_TN_LF_");
break;
case TN_IAC:
sprintf (&obuf[strlen (obuf)], "_TN_IAC_");
switch ((unsigned char)buf[i+1]) {
case TN_IAC:
sprintf (&obuf[strlen (obuf)], "_TN_IAC_"); ++i;
break;
case TN_DONT:
sprintf (&obuf[strlen (obuf)], "_TN_DONT_"); ++i;
break;
case TN_DO:
sprintf (&obuf[strlen (obuf)], "_TN_DO_"); ++i;
break;
case TN_WONT:
sprintf (&obuf[strlen (obuf)], "_TN_WONT_"); ++i;
break;
case TN_WILL:
sprintf (&obuf[strlen (obuf)], "_TN_WILL_"); ++i;
break;
default:
sprintf (&obuf[strlen (obuf)], "_0x%02X_", (unsigned char)buf[i+1]); ++i;
break;
}
switch ((unsigned char)buf[i+1]) {
case TN_BIN:
sprintf (&obuf[strlen (obuf)], "_TN_BIN_"); ++i;
break;
case TN_ECHO:
sprintf (&obuf[strlen (obuf)], "_TN_ECHO_"); ++i;
break;
case TN_SGA:
sprintf (&obuf[strlen (obuf)], "_TN_SGA_"); ++i;
break;
case TN_LINE:
sprintf (&obuf[strlen (obuf)], "_TN_LINE_"); ++i;
break;
default:
sprintf (&obuf[strlen (obuf)], "_0x%02X_", (unsigned char)buf[i+1]); ++i;
break;
}
break;
default:
if (isprint((u_char)buf[i]))
sprintf (&obuf[strlen (obuf)], "%c", buf[i]);
else {
sprintf (&obuf[strlen (obuf)], "_");
if ((buf[i] >= 1) && (buf[i] <= 26))
sprintf (&obuf[strlen (obuf)], "^%c", 'A' + buf[i] - 1);
else
sprintf (&obuf[strlen (obuf)], "\\%03o", (u_char)buf[i]);
sprintf (&obuf[strlen (obuf)], "_");
}
break;
}
}
fprintf(p->Debug, "%s%s%s\n", timestamp, threadname, obuf);
free (obuf);
break;
}
}
static void __panel_debug (PANEL *p, int dbits, const char *fmt, const char *buf, int bufsize, ...)
{
va_list arglist;
va_start (arglist, bufsize);
__panel_vdebug (p, dbits, fmt, buf, bufsize, arglist);
va_end (arglist);
}
void
sim_panel_debug (PANEL *panel, const char *fmt, ...)
{
va_list arglist;
va_start (arglist, fmt);
__panel_vdebug (panel, DBG_APP, fmt, NULL, 0, arglist);
va_end (arglist);
}
static void *
_panel_debugflusher(void *arg)
{
PANEL *p = (PANEL*)arg;
int flush_interval = 15;
int sleeps = 0;
pthread_setspecific (panel_thread_id, "debugflush");
pthread_mutex_lock (&p->io_lock);
p->debugflush_thread_running = 1;
pthread_mutex_unlock (&p->io_lock);
pthread_cond_signal (&p->startup_done); /* Signal we're ready to go */
msleep (100);
pthread_mutex_lock (&p->io_lock);
while (p->sock != INVALID_SOCKET) {
pthread_mutex_unlock (&p->io_lock);
msleep (1000);
pthread_mutex_lock (&p->io_lock);
if (0 == (sleeps++)%flush_interval)
sim_panel_flush_debug (p);
}
pthread_mutex_unlock (&p->io_lock);
pthread_mutex_lock (&p->io_lock);
pthread_setspecific (panel_thread_id, NULL);
p->debugflush_thread_running = 0;
pthread_mutex_unlock (&p->io_lock);
return NULL;
}
static void
_set_debug_file (PANEL *panel, const char *debug_file)
{
if (!panel)
return;
panel->Debug = fopen(debug_file, "w");
if (panel->Debug)
setvbuf (panel->Debug, NULL, _IOFBF, 65536);
}
void
sim_panel_set_debug_mode (PANEL *panel, int debug_bits)
{
if (panel)
panel->debug = debug_bits;
}
void
sim_panel_flush_debug (PANEL *panel)
{
if (!panel)
return;
if (panel->Debug)
fflush (panel->Debug);
}
static int
_panel_send (PANEL *p, const char *msg, int len)
{
int sent = 0;
if (p->sock == INVALID_SOCKET)
return sim_panel_set_error (p, "Invalid Socket for write");
pthread_mutex_lock (&p->io_send_lock);
while (len) {
int bsent = sim_write_sock (p->sock, msg, len);
if (bsent < 0) {
pthread_mutex_unlock (&p->io_send_lock);
return sim_panel_set_error (p, "%s", sim_get_err_sock("Error writing to socket"));
}
_panel_debug (p, DBG_XMT, "Sent %d bytes: ", msg, bsent, bsent);
len -= bsent;
msg += bsent;
sent += bsent;
}
pthread_mutex_unlock (&p->io_send_lock);
return sent;
}
static int
_panel_sendf (PANEL *p, int *completion_status, char **response, const char *fmt, ...);
static int
_panel_sendf_completion (PANEL *p, char **response, const char *completion, const char *fmt, ...);
static int
_panel_register_query_string (PANEL *panel, char **buf, size_t *buf_size)
{
size_t i, j, buf_data, buf_needed = 0, reg_count = 0, bit_reg_count = 0;
const char *dev;
pthread_mutex_lock (&panel->io_lock);
buf_needed = 3 + 7 + /* EXECUTE */
strlen (register_get_start) + /* # REGISTERS-START */
strlen (register_get_prefix); /* SHOW TIME */
for (i=0; i<panel->reg_count; i++) {
if (panel->regs[i].bits)
++bit_reg_count;
else {
++reg_count;
buf_needed += 10 + strlen (panel->regs[i].name) + (panel->regs[i].device_name ? strlen (panel->regs[i].device_name) : 0);
if (panel->regs[i].element_count > 0)
buf_needed += 4 + 6 /* 6 digit register array index */;
if (panel->regs[i].indirect)
buf_needed += 12 + strlen (register_ind_echo) + strlen (panel->regs[i].name);
}
}
if (bit_reg_count)
buf_needed += 2 + strlen (register_get_postfix);
buf_needed += 10 + strlen (register_get_end); /* # REGISTERS-DONE */
if (buf_needed > *buf_size) {
free (*buf);
*buf = (char *)_panel_malloc (buf_needed);
if (!*buf) {
panel->State = Error;
pthread_mutex_unlock (&panel->io_lock);
return -1;
}
*buf_size = buf_needed;
}
buf_data = 0;
if (reg_count) {
sprintf (*buf + buf_data, "EXECUTE %s;%s;", register_get_start, register_get_prefix);
buf_data += strlen (*buf + buf_data);
}
dev = "";
for (i=j=0; i<panel->reg_count; i++) {
const char *reg_dev = panel->regs[i].device_name ? panel->regs[i].device_name : "";
if ((panel->regs[i].indirect) || (panel->regs[i].bits))
continue;
if (strcmp (dev, reg_dev)) {/* devices are different */
char *tbuf;
buf_needed += 4 + strlen (register_dev_echo) + strlen (reg_dev); /* # REGISTERS-for-DEVICE:XXX */
tbuf = (char *)_panel_malloc (buf_needed);
if (tbuf == NULL) {
panel->State = Error;
pthread_mutex_unlock (&panel->io_lock);
return -1;
}
strcpy (tbuf, *buf);
free (*buf);
*buf = tbuf;
sprintf (*buf + buf_data, "%s%s%s;", (i == 0)? "" : ";", register_dev_echo, reg_dev);
buf_data += strlen (*buf + buf_data);
dev = reg_dev;
j = 0;
*buf_size = buf_needed;
}
if (panel->regs[i].element_count == 0) {
if (j == 0)
sprintf (*buf + buf_data, "E -16 %s %s", dev, panel->regs[i].name);
else
sprintf (*buf + buf_data, ",%s", panel->regs[i].name);
}
else {
if (j == 0)
sprintf (*buf + buf_data, "E -16 %s %s[0:%d]", dev, panel->regs[i].name, (int)(panel->regs[i].element_count-1));
else
sprintf (*buf + buf_data, ",%s[0:%d]", panel->regs[i].name, (int)(panel->regs[i].element_count-1));
}
++j;
buf_data += strlen (*buf + buf_data);
}
if (buf_data && ((*buf)[buf_data-1] != ';')) {
strcpy (*buf + buf_data, ";");
buf_data += strlen (*buf + buf_data);
}
for (i=j=0; i<panel->reg_count; i++) {
const char *reg_dev = panel->regs[i].device_name ? panel->regs[i].device_name : "";
if ((!panel->regs[i].indirect) || (panel->regs[i].bits))
continue;
sprintf (*buf + buf_data, "%s%s;E -16 %s %s,$;", register_ind_echo, panel->regs[i].name, reg_dev, panel->regs[i].name);
buf_data += strlen (*buf + buf_data);
}
if (bit_reg_count) {
strcpy (*buf + buf_data, register_get_postfix);
buf_data += strlen (*buf + buf_data);
strcpy (*buf + buf_data, ";");
buf_data += strlen (*buf + buf_data);
}
strcpy (*buf + buf_data, register_get_end);
buf_data += strlen (*buf + buf_data);
strcpy (*buf + buf_data, "\r");
buf_data += strlen (*buf + buf_data);
*buf_size = buf_data;
pthread_mutex_unlock (&panel->io_lock);
return 0;
}
static int
_panel_establish_register_bits_collection (PANEL *panel)
{
size_t i, buf_data, buf_needed = 1, reg_count = 0, bit_reg_count = 0;
int cmd_stat, bits_count = 0;
char *buf, *response = NULL;
pthread_mutex_lock (&panel->io_lock);
for (i=0; i<panel->reg_count; i++) {
if (panel->regs[i].bits)
buf_needed += 9 + strlen (panel->regs[i].name) + (panel->regs[i].device_name ? strlen (panel->regs[i].device_name) : 0);
}
buf = (char *)_panel_malloc (buf_needed);
if (!buf) {
panel->State = Error;
pthread_mutex_unlock (&panel->io_lock);
return -1;
}
*buf = '\0';
buf_data = 0;
for (i=0; i<panel->reg_count; i++) {
if (panel->regs[i].bits) {
++bits_count;
sprintf (buf + buf_data, "%s%s", (bits_count != 1) ? "," : "", panel->regs[i].indirect ? "-I " : "");
buf_data += strlen (buf + buf_data);
if (panel->regs[i].device_name) {
sprintf (buf + buf_data, "%s ", panel->regs[i].device_name);
buf_data += strlen (buf + buf_data);
}
sprintf (buf + buf_data, "%s", panel->regs[i].name);
buf_data += strlen (buf + buf_data);
}
}
pthread_mutex_unlock (&panel->io_lock);
if (_panel_sendf (panel, &cmd_stat, &response, "%s%u%s%u%s%u%s%s\r", register_collect_prefix, panel->sample_depth,
register_collect_mid1, panel->sample_frequency,
register_collect_mid2, panel->sample_dither_pct,
register_collect_mid3, buf)) {
sim_panel_set_error (NULL, "Error establishing bit data collection:%s", response);
free (response);
free (buf);
return -1;
}
free (response);
free (buf);
return 0;
}
static PANEL **panels = NULL;
static int panel_count = 0;
static char *sim_panel_error_buf = NULL;
static size_t sim_panel_error_bufsize = 0;
static void
_panel_cleanup (void)
{
while (panel_count)
sim_panel_destroy (*panels);
}
static void
_panel_register_panel (PANEL *p)
{
if (panel_count == 0)
pthread_key_create (&panel_thread_id, free);
if (!pthread_getspecific (panel_thread_id))
pthread_setspecific (panel_thread_id, p->device_name ? p->device_name : "PanelCreator");
++panel_count;
panels = (PANEL **)realloc (panels, sizeof(*panels)*panel_count);
panels[panel_count-1] = p;
if (panel_count == 1)
atexit (&_panel_cleanup);
}
static void
_panel_deregister_panel (PANEL *p)
{
int i;
for (i=0; i<panel_count; i++) {
if (panels[i] == p) {
int j;
for (j=i+1; j<panel_count; j++)
panels[j-1] = panels[j];
--panel_count;
if (panel_count == 0) {
free (panels);
panels = NULL;
pthread_setspecific (panel_thread_id, NULL);
pthread_key_delete (panel_thread_id);
}
break;
}
}
}
static PANEL *
_sim_panel_create (const char *sim_path,
const char *sim_config,
size_t device_panel_count,
PANEL *simulator_panel,
const char *device_name,
const char *debug_file)
{
PANEL *p = NULL;
FILE *fIn = NULL;
FILE *fOut = NULL;
struct stat statb;
char *buf = NULL;
int port;
int cmd_stat;
size_t i, device_num;
char hostport[64];
union {int i; char c[sizeof (int)]; } end_test;
if (sim_panel_error_buf == NULL) { /* Preallocate an error message buffer */
sim_panel_error_bufsize = 2048;
sim_panel_error_buf = (char *) malloc (sim_panel_error_bufsize);
if (sim_panel_error_buf == NULL) {
sim_panel_error_buf = (char *)"sim_panel_set_error(): Out of Memory\n";
sim_panel_error_bufsize = 0;
return NULL;
}
}
if (simulator_panel) {
for (device_num=0; device_num < simulator_panel->device_count; ++device_num)
if (simulator_panel->devices[device_num] == NULL)
break;
if (device_num == simulator_panel->device_count) {
sim_panel_set_error (NULL, "No free panel devices slots available %s simulator. All %d slots are used.", simulator_panel->path, (int)simulator_panel->device_count);
return NULL;
}
p = (PANEL *)_panel_malloc (sizeof(*p));
if (p == NULL)
goto Error_Return;
memset (p, 0, sizeof(*p));
_panel_register_panel (p);
p->device_name = (char *)_panel_malloc (1 + strlen (device_name));
if (p->device_name == NULL)
goto Error_Return;
strcpy (p->device_name, device_name);
p->parent = simulator_panel;
p->Debug = p->parent->Debug;
strcpy (p->hostport, simulator_panel->hostport);
p->sock = INVALID_SOCKET;
}
else {
end_test.i = 1; /* test endian-ness */
little_endian = (end_test.c[0] != 0);
sim_init_sock ();
for (port=1024; port < 2048; port++) {
SOCKET sock;
sprintf (hostport, "%d", port);
sock = sim_connect_sock_ex (NULL, hostport, NULL, NULL, SIM_SOCK_OPT_NODELAY | SIM_SOCK_OPT_BLOCKING);
if (sock != INVALID_SOCKET) {
int sta = 0;
while (!sta) {
msleep (10);
sta = sim_check_conn (sock, 1);
}
sim_close_sock (sock);
if (sta == -1)
break;
}
else
break;
}
if (stat (sim_config, &statb) < 0) {
sim_panel_set_error (NULL, "Can't stat simulator configuration '%s': %s", sim_config, strerror(errno));
goto Error_Return;
}
buf = (char *)_panel_malloc (statb.st_size+1);
if (buf == NULL)
goto Error_Return;
buf[statb.st_size] = '\0';
p = (PANEL *)_panel_malloc (sizeof(*p));
if (p == NULL)
goto Error_Return;
memset (p, 0, sizeof(*p));
_panel_register_panel (p);
p->sock = INVALID_SOCKET;
p->path = (char *)_panel_malloc (strlen (sim_path) + 1);
if (p->path == NULL)
goto Error_Return;
strcpy (p->path, sim_path);
p->config = (char *)_panel_malloc (strlen (sim_config) + 1);
if (p->config == NULL)
goto Error_Return;
strcpy (p->config, sim_config);
fIn = fopen (sim_config, "r");
if (fIn == NULL) {
sim_panel_set_error (NULL, "Can't open configuration file '%s': %s", sim_config, strerror(errno));
goto Error_Return;
}
p->temp_config = (char *)_panel_malloc (strlen (sim_config) + 40);
if (p->temp_config == NULL)
goto Error_Return;
sprintf (p->temp_config, "%s-Panel-%d", sim_config, getpid());
fOut = fopen (p->temp_config, "w");
if (fOut == NULL) {
sim_panel_set_error (NULL, "Can't create temporary configuration file '%s': %s", p->temp_config, strerror(errno));
goto Error_Return;
}
fprintf (fOut, "# Temporary FrontPanel generated simh configuration file\n");
fprintf (fOut, "# Original Configuration File: %s\n", p->config);
fprintf (fOut, "# Simulator Path: %s\n", sim_path);
while (fgets (buf, statb.st_size, fIn))
fputs (buf, fOut);
free (buf);
buf = NULL;
fclose (fIn);
fIn = NULL;
fprintf (fOut, "set remote notelnet\n");
if (device_panel_count)
fprintf (fOut, "set remote connections=%d\n", (int)device_panel_count+1);
fprintf (fOut, "set remote -u telnet=%s\n", hostport);
fprintf (fOut, "set remote master\n");
fprintf (fOut, "exit\n");
fclose (fOut);
fOut = NULL;
}
if (debug_file) {
_set_debug_file (p, debug_file);
sim_panel_set_debug_mode (p, DBG_XMT|DBG_RCV);
_panel_debug (p, DBG_XMT|DBG_RCV, "Creating Simulator Process %s\n", NULL, 0, sim_path);
if (stat (p->temp_config, &statb) < 0) {
sim_panel_set_error (NULL, "Can't stat temporary simulator configuration '%s': %s", p->temp_config, strerror(errno));
goto Error_Return;
}
buf = (char *)_panel_malloc (statb.st_size+1);
if (buf == NULL)
goto Error_Return;
buf[statb.st_size] = '\0';
fIn = fopen (p->temp_config, "r");
if (fIn == NULL) {
sim_panel_set_error (NULL, "Can't open temporary configuration file '%s': %s", p->temp_config, strerror(errno));
goto Error_Return;
}
_panel_debug (p, DBG_XMT|DBG_RCV, "Using Temporary Configuration File '%s' containing:", NULL, 0, p->temp_config);
i = 0;
while (fgets (buf, statb.st_size, fIn)) {
++i;
buf[strlen(buf) - 1] = '\0';
_panel_debug (p, DBG_XMT|DBG_RCV, "Line %2d: %s", NULL, 0, (int)i, buf);
}
free (buf);
buf = NULL;
fclose (fIn);
fIn = NULL;
}
if (!simulator_panel) {
#if defined(_WIN32)
char cmd[2048];
PROCESS_INFORMATION ProcessInfo;
STARTUPINFO StartupInfo;
sprintf(cmd, "%s%s%s %s%s%s", strchr (sim_path, ' ') ? "\"" : "", sim_path, strchr (sim_path, ' ') ? "\"" : "", strchr (p->temp_config, ' ') ? "\"" : "", p->temp_config, strchr (p->temp_config, ' ') ? "\"" : "");
memset (&ProcessInfo, 0, sizeof(ProcessInfo));
memset (&StartupInfo, 0, sizeof(StartupInfo));
StartupInfo.dwFlags = STARTF_USESTDHANDLES;
StartupInfo.hStdInput = INVALID_HANDLE_VALUE;
StartupInfo.hStdOutput = INVALID_HANDLE_VALUE;
StartupInfo.hStdError = INVALID_HANDLE_VALUE;
if (CreateProcessA(NULL, cmd, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &StartupInfo, &ProcessInfo)) {
CloseHandle (ProcessInfo.hThread);
p->hProcess = ProcessInfo.hProcess;
p->dwProcessId = ProcessInfo.dwProcessId;
}
else { /* Creation Problem */
sim_panel_set_error (NULL, "CreateProcess Error: %d", GetLastError());
goto Error_Return;
}
#else
p->pidProcess = fork();
if (p->pidProcess == 0) {
close (0); close (1); close (2); /* make sure not to pass the open standard handles */
if (dup (dup (open ("/dev/null", O_RDWR)))) {}; /* open standard handles to /dev/null */
if (execlp (sim_path, sim_path, p->temp_config, NULL, NULL)) {
perror ("execl");
exit(errno);
}
}
if (p->pidProcess < 0) {
p->pidProcess = 0;
sim_panel_set_error (NULL, "fork() Error: %s", strerror(errno));
goto Error_Return;
}
#endif
strcpy (p->hostport, hostport);
}
for (i=0; i<100; i++) { /* Allow up to 10 seconds waiting for simulator to start up */
p->sock = sim_connect_sock_ex (NULL, p->hostport, NULL, NULL, SIM_SOCK_OPT_NODELAY | SIM_SOCK_OPT_BLOCKING);
if (p->sock == INVALID_SOCKET)
msleep (100);
else
break;
}
if (p->sock == INVALID_SOCKET) {
if (simulator_panel) {
sim_panel_set_error (NULL, "Can't connect to simulator Remote Console on port %s", p->hostport);
}
else {
if (stat (sim_path, &statb) < 0)
sim_panel_set_error (NULL, "Can't stat simulator '%s': %s", sim_path, strerror(errno));
else
sim_panel_set_error (NULL, "Can't connect to the %s simulator Remote Console on port %s, the simulator process may not have started or the simulator binary can't be found", sim_path, p->hostport);
}
goto Error_Return;
}
_panel_debug (p, DBG_XMT|DBG_RCV, "Connected to simulator on %s after %dms", NULL, 0, p->hostport, (int)i*100);
pthread_mutex_init (&p->io_lock, NULL);
pthread_mutex_init (&p->io_send_lock, NULL);
pthread_mutex_init (&p->io_command_lock, NULL);
pthread_cond_init (&p->io_done, NULL);
pthread_cond_init (&p->startup_done, NULL);
if (sizeof(mantra) != _panel_send (p, (char *)mantra, sizeof(mantra))) {
sim_panel_set_error (NULL, "Error sending Telnet mantra (options): %s", sim_get_err_sock ("send"));
goto Error_Return;
}
if (1) {
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
pthread_mutex_lock (&p->io_lock);
p->io_thread_running = 0;
pthread_create (&p->io_thread, &attr, _panel_reader, (void *)p);
while (!p->io_thread_running)
pthread_cond_wait (&p->startup_done, &p->io_lock); /* Wait for thread to stabilize */
if ((p->Debug) && (p->parent == NULL)) {
p->debugflush_thread_running = 0;
pthread_create (&p->debugflush_thread, &attr, _panel_debugflusher, (void *)p);
while (!p->debugflush_thread_running)
pthread_cond_wait (&p->startup_done, &p->io_lock); /* Wait for thread to stabilize */
}
pthread_mutex_unlock (&p->io_lock);
pthread_attr_destroy(&attr);
pthread_cond_destroy (&p->startup_done);
}
if (simulator_panel) {
simulator_panel->devices[device_num] = p;
}
else {
if (device_panel_count) {
p->devices = (PANEL **)_panel_malloc (device_panel_count*sizeof(*p->devices));
if (p->devices == NULL)
goto Error_Return;
memset (p->devices, 0, device_panel_count*sizeof(*p->devices));
p->device_count = device_panel_count;
}
if (p->State == Error)
goto Error_Return;
/* Validate sim_frontpanel API version */
if (_panel_sendf (p, &cmd_stat, &p->simulator_version, "SHOW VERSION\r"))
goto Error_Return;
if (1) {
int api_version = 0;
char *c = strstr (p->simulator_version, "FrontPanel API Version");
if ((!c) ||
(1 != sscanf (c, "FrontPanel API Version %d", &api_version)) ||
(api_version != SIM_FRONTPANEL_VERSION)) {
sim_panel_set_error (NULL, "Inconsistent sim_frontpanel API version %d in simulator. Version %d needed.-", api_version, SIM_FRONTPANEL_VERSION);
goto Error_Return;
}
}
if (1) {
char *radix = NULL;
if (_panel_sendf (p, &cmd_stat, &radix, "SHOW %s RADIX\r", p->device_name ? p->device_name : "")) {
free (radix);
goto Error_Return;
}
sscanf (radix, "Radix=%d", &p->radix);
free (radix);
if ((p->radix != 16) && (p->radix != 8)) {
sim_panel_set_error (NULL, "Unsupported Radix: %d%s%s.", p->radix, p->device_name ? " on device " : "", p->device_name ? p->device_name : "");
goto Error_Return;
}
}
}
return p;
Error_Return:
if (fIn)
fclose (fIn);
if (fOut) {
fclose (fOut);
(void)remove (p->temp_config);
}
if (buf)
free (buf);
if (1) {
const char *err = sim_panel_get_error();
char *errbuf = (char *)_panel_malloc (1 + strlen (err));
strcpy (errbuf, err); /* preserve error info while closing */
sim_panel_destroy (p);
sim_panel_set_error (NULL, "%s", errbuf);
free (errbuf);
}
if (!simulator_panel)
sim_cleanup_sock();
return NULL;
}
PANEL *