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bflogic_cli.c
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bflogic_cli.c
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/*
* (c) Copyright 2001 - 2006, 2009, 2013 -- Anders Torger
*
* This program is open source. For license terms, see the LICENSE file.
*
*/
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/poll.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <netdb.h>
#include <unistd.h>
#include <math.h>
#include <fcntl.h>
#include <termios.h>
#define IS_BFLOGIC_MODULE
#include "timermacros.h"
#include "bfmod.h"
#include "defs.h"
#include "log2.h"
#include "bit.h"
#include "inout.h"
#include "fdrw.h"
#define WELCOME_TEXT "\nWelcome to BruteFIR, type \"help\" for help.\n\n"
#define PROMPT_TEXT "> "
#define HELP_TEXT "\n\
Commands:\n\
\n\
lf -- list filters.\n\
lc -- list coeffient sets.\n\
li -- list inputs.\n\
lo -- list outputs.\n\
lm -- list modules.\n\
\n\
cfoa -- change filter output attenuation.\n\
cfoa <filter> <output> <attenuation|Mmultiplier>\n\
cfia -- change filter input attenuation.\n\
cfia <filter> <input> <attenuation|Mmultiplier>\n\
cffa -- change filter filter-input attenuation.\n\
cffa <filter> <filter-input> <attenuation|Mmultiplier>\n\
cfc -- change filter coefficients.\n\
cfc <filter> <coeff>\n\
cfd -- change filter delay. (may truncate coeffs!)\n\
cfd <filter> <delay blocks>\n\
cod -- change output delay.\n\
cod <output> <delay> [<subdelay>]\n\
cid -- change input delay.\n\
cid <input> <delay> [<subdelay>]\n\
tmo -- toggle mute output.\n\
tmo <output>\n\
tmi -- toggle mute input.\n\
tmi <input>\n\
imc -- issue input module command.\n\
imc <index> <command>\n\
omc -- issue output module command.\n\
omc <index> <command>\n\
lmc -- issue logic module command.\n\
lmc <module> <command>\n\
\n\
sleep -- sleep for the given number of seconds [and ms], or blocks.\n\
sleep 10 (sleep 10 seconds).\n\
sleep b10 (sleep 10 blocks).\n\
sleep 0 300 (sleep 300 milliseconds).\n\
abort -- terminate immediately.\n\
tp -- toggle prompt.\n\
ppk -- print peak info, channels/samples/max dB.\n\
rpk -- reset peak meters.\n\
upk -- toggle print peak info on changes.\n\
rti -- print current realtime index.\n\
quit -- close connection.\n\
help -- print this text.\n\
\n\
Notes:\n\
\n\
- When entering several commands on a single line,\n\
separate them with semicolons (;).\n\
- Inputs/outputs/filters can be given as index\n\
numbers or as strings between quotes (\"\").\n\
\n\
"
#define MAXCMDLINE 4096
#define FILTER_ID 1
#define INPUT_ID 2
#define OUTPUT_ID 3
#define COEFF_ID 4
static volatile struct bffilter_control *fctrl;
static int n_filters;
static const struct bffilter *filters;
static int n_coeffs;
static const struct bfcoeff *coeffs;
static const int *n_channels;
static const struct bfchannel **channels;
static int line_speed;
static int port, port2;
static char *lport = NULL;
static char *script = NULL;
static struct bfaccess *bfaccess;
static int n_maxblocks;
static int block_length;
static bool_t print_peak_updates = false;
static bool_t print_prompt = true;
static bool_t print_commands = false;
static bool_t debug = false;
static char error[1024];
struct sleep_task {
bool_t do_sleep;
bool_t block_sleep;
unsigned int blocks;
unsigned int seconds;
unsigned int useconds;
};
struct state {
struct bffilter_control fctrl[BF_MAXFILTERS];
bool_t fchanged[BF_MAXFILTERS];
int delay[2][BF_MAXCHANNELS];
int subdelay[2][BF_MAXCHANNELS];
bool_t toggle_mute[2][BF_MAXCHANNELS];
};
static struct state newstate;
static void
clear_changes(void)
{
int n, i;
if (fctrl == NULL) {
return;
}
for (n = 0; n < n_filters; n++) {
newstate.fctrl[n].coeff = fctrl[n].coeff;
newstate.fctrl[n].delayblocks = fctrl[n].delayblocks;
for (i = 0; i < filters[n].n_channels[OUT]; i++) {
newstate.fctrl[n].scale[OUT][i] = fctrl[n].scale[OUT][i];
}
for (i = 0; i < filters[n].n_channels[IN]; i++) {
newstate.fctrl[n].scale[IN][i] = fctrl[n].scale[IN][i];
}
for (i = 0; i < filters[n].n_filters[IN]; i++) {
newstate.fctrl[n].fscale[i] = fctrl[n].fscale[i];
}
}
memset(newstate.toggle_mute, 0, sizeof(newstate.toggle_mute));
memset(newstate.fchanged, 0, sizeof(newstate.fchanged));
memset(newstate.delay, -1, sizeof(newstate.delay));
for (n = 0; n < BF_MAXCHANNELS; n++) {
newstate.subdelay[IN][n] = BF_UNDEFINED_SUBDELAY;
newstate.subdelay[OUT][n] = BF_UNDEFINED_SUBDELAY;
}
}
static void
commit_changes(FILE *stream)
{
int n, i;
FOR_IN_AND_OUT {
for (n = 0; n < n_channels[IO]; n++) {
if (newstate.delay[IO][n] != -1) {
if (bfaccess->set_delay(IO, n, newstate.delay[IO][n]) == -1) {
fprintf(stream, "Could not change %s delay.\n",
IO == IN ? "input" : "output");
}
}
if (newstate.subdelay[IO][n] != BF_UNDEFINED_SUBDELAY) {
if (bfaccess->set_subdelay(IO, n,
newstate.subdelay[IO][n]) == -1)
{
fprintf(stream, "Could not change %s subdelay.\n",
IO == IN ? "input" : "output");
}
}
if (newstate.toggle_mute[IO][n]) {
bfaccess->toggle_mute(IO, n);
}
}
}
for (n = 0; n < n_filters; n++) {
if (!newstate.fchanged[n]) {
continue;
}
fctrl[n].coeff = newstate.fctrl[n].coeff;
fctrl[n].delayblocks = newstate.fctrl[n].delayblocks;
for (i = 0; i < filters[n].n_channels[OUT]; i++) {
fctrl[n].scale[OUT][i] = newstate.fctrl[n].scale[OUT][i];
}
for (i = 0; i < filters[n].n_channels[IN]; i++) {
fctrl[n].scale[IN][i] = newstate.fctrl[n].scale[IN][i];
}
for (i = 0; i < filters[n].n_filters[IN]; i++) {
fctrl[n].fscale[i] = newstate.fctrl[n].fscale[i];
}
}
}
static bool_t
are_changes(void)
{
int n;
FOR_IN_AND_OUT {
for (n = 0; n < n_channels[IO]; n++) {
if (newstate.delay[IO][n] != -1 ||
newstate.subdelay[IO][n] != BF_UNDEFINED_SUBDELAY ||
newstate.toggle_mute[IO][n])
{
return true;
}
}
}
for (n = 0; n < n_filters; n++) {
if (newstate.fchanged[n]) {
return true;
}
}
return false;
}
static void
print_overflows(FILE *stream)
{
double peak;
int n;
fprintf(stream, "peak: ");
for (n = 0; n < n_channels[OUT]; n++) {
peak = (volatile double)bfaccess->overflow[n].largest;
if (peak < (double)(volatile int32_t)bfaccess->overflow[n].intlargest) {
peak = (double)(volatile int32_t)bfaccess->overflow[n].intlargest;
}
if (peak != 0.0) {
if ((peak = 20.0 * log10(peak / bfaccess->overflow[n].max))
== 0.0)
{
peak = -0.0;
}
fprintf(stream, "%d/%u/%+.2f ", n,
(volatile unsigned int)bfaccess->overflow[n].n_overflows,
peak);
} else {
fprintf(stream, "%d/%u/-Inf ", n,
(volatile unsigned int)bfaccess->overflow[n].n_overflows);
}
}
fprintf(stream, "\n");
}
static char *
strtrim(char s[])
{
char *p;
while (*s == ' ' || *s == '\t') {
s++;
}
if (*s == '\0') {
return s;
}
p = s + strlen(s) - 1;
while ((*p == ' ' || *p == '\t') && p != s) {
p--;
}
*(p + 1) = '\0';
return s;
}
static bool_t
get_id(FILE *stream,
char str[],
char **p,
int *id,
int type,
int rid)
{
int io = -1, n;
str = strtrim(str);
if (str[0] == '\"') {
str += 1;
if ((*p = strchr(str, '\"')) == NULL) {
fprintf(stream, "Invalid string.\n");
return false;
}
**p = '\0';
switch (type) {
case FILTER_ID:
io = -2;
for (*id = 0; *id < n_filters; (*id)++) {
if (strcmp(filters[*id].name, str) == 0) {
break;
}
}
if (*id == n_filters) {
fprintf(stream, "There is no filter with name \"%s\".\n", str);
return false;
}
break;
case COEFF_ID:
for (*id = 0; *id < n_coeffs; (*id)++) {
if (strcmp(coeffs[*id].name, str) == 0) {
break;
}
}
if (*id == n_coeffs) {
fprintf(stream, "There is no coefficient set with name "
"\"%s\".\n", str);
return false;
}
break;
case INPUT_ID:
case OUTPUT_ID:
io = (type == INPUT_ID) ? IN : OUT;
for (*id = 0; *id < n_channels[io]; (*id)++) {
if (strcmp(channels[io][*id].name, str) == 0) {
break;
}
}
if (*id == n_channels[io]) {
fprintf(stream, "There is no %s with name \"%s\".\n",
(io == IN) ? "input" : "output", str);
return false;
}
break;
}
} else {
*id = strtol(str, p, 10);
if (*p == str) {
fprintf(stream, "Invalid number.\n");
return false;
}
if (*id < 0 && type != COEFF_ID) {
fprintf(stream, "Negative number (%d) is not allowed.\n", *id);
return false;
}
switch (type) {
case FILTER_ID:
io = -2;
if (*id >= n_filters) {
fprintf(stream, "Filter id %d is out of range.\n", *id);
return false;
}
break;
case COEFF_ID:
if (*id >= (int)n_coeffs) {
fprintf(stream, "Coefficient set id %d is out of range.\n",
*id);
return false;
}
break;
case INPUT_ID:
case OUTPUT_ID:
io = (type == INPUT_ID) ? IN : OUT;
if (*id >= n_channels[io]) {
fprintf(stream, "%s id %d is out of range.\n",
(io == IN) ? "Input" : "Output", *id);
return false;
}
break;
}
}
if (io != -1 && rid != -1) {
if (io == -2) {
for (n = 0; n < filters[rid].n_filters[IN]; n++) {
if (filters[rid].filters[IN][n] == *id) {
break;
}
}
if (n == filters[rid].n_filters[IN]) {
fprintf(stream, "Filter id %d does not exist in the given "
"filter.\n", *id);
return false;
}
} else {
for (n = 0; n < filters[rid].n_channels[io]; n++) {
if (filters[rid].channels[io][n] == *id) {
break;
}
}
if (n == filters[rid].n_channels[io]) {
fprintf(stream, "%s id %d does not exist in the given "
"filter.\n", (io == IN) ? "Input" : "Output", *id);
return false;
}
}
*id = n;
}
*p += 1;
while (**p == ' ' || **p == '\t') {
(*p)++;
}
return true;
}
static bool_t
parse_command(FILE *stream,
char cmd[],
struct sleep_task *_sleep_task)
{
struct sleep_task sleep_task;
int n, i, rid, id, range[2];
const char **names;
double att;
char *p;
if (strcmp(cmd, "lf") == 0) {
fprintf(stream, "Filters:\n");
for (n = 0; n < n_filters; n++) {
fprintf(stream, " %d: \"%s\"\n", n, filters[n].name);
if (fctrl[n].coeff < 0) {
fprintf(stream, " coeff set: %d (no filter)\n",
fctrl[n].coeff);
} else {
fprintf(stream, " coeff set: %d\n", fctrl[n].coeff);
}
fprintf(stream, " delay blocks: %d (%d samples)\n",
fctrl[n].delayblocks, fctrl[n].delayblocks * block_length);
FOR_IN_AND_OUT {
fprintf(stream, (IO == IN) ? " from inputs: " :
" to outputs: ");
for (i = 0; i < filters[n].n_channels[IO]; i++) {
if (fctrl[n].scale[IO][i] < 0) {
att = -20.0 * log10(-fctrl[n].scale[IO][i]);
} else {
att = -20.0 * log10(fctrl[n].scale[IO][i]);
}
if (att == 0.0) {
att = 0.0000001; /* to show up as 0.0 and not -0.0 */
}
fprintf(stream, "%d/%.1f", filters[n].channels[IO][i],
att);
if (fctrl[n].scale[IO][i] < 0) {
fprintf(stream, "/-1 ");
} else {
fprintf(stream, " ");
}
}
fprintf(stream, "\n");
}
FOR_IN_AND_OUT {
fprintf(stream, (IO == IN) ? " from filters: " :
" to filters: ");
for (i = 0; i < filters[n].n_filters[IO]; i++) {
if (IO == IN) {
if (fctrl[n].fscale[i] < 0) {
att = -20.0 * log10(-fctrl[n].fscale[i]);
} else {
att = -20.0 * log10(fctrl[n].fscale[i]);
}
if (att == 0.0) {
att = 0.0000001;
}
fprintf(stream, "%d/%.1f", filters[n].filters[IO][i],
att);
if (fctrl[n].fscale[i] < 0) {
fprintf(stream, "/-1 ");
} else {
fprintf(stream, " ");
}
} else {
fprintf(stream, "%d ",
filters[n].filters[IO][i]);
}
}
fprintf(stream, "\n");
}
}
fprintf(stream, "\n");
} else if (strcmp(cmd, "lc") == 0) {
fprintf(stream, "Coefficient sets:\n");
for (n = 0; n < n_coeffs; n++) {
fprintf(stream, " %d: \"%s\" (%d blocks)\n", n,
coeffs[n].name,
coeffs[n].n_blocks);
}
fprintf(stream, "\n");
} else if (strcmp(cmd, "li") == 0) {
fprintf(stream, "Input channels:\n");
for (n = 0; n < n_channels[IN]; n++) {
fprintf(stream, " %d: \"%s\" (delay: %d:%d) %s\n", n,
channels[IN][n].name, bfaccess->get_delay(IN, n),
bfaccess->get_subdelay(IN, n),
bfaccess->ismuted(IN, n) ? "(muted)" : "");
}
fprintf(stream, "\n");
} else if (strcmp(cmd, "lo") == 0) {
fprintf(stream, "Output channels:\n");
for (n = 0; n < n_channels[OUT]; n++) {
fprintf(stream, " %d: \"%s\" (delay: %d:%d) %s\n", n,
channels[OUT][n].name, bfaccess->get_delay(OUT, n),
bfaccess->get_subdelay(OUT, n),
bfaccess->ismuted(OUT, n) ? "(muted)" : "");
}
fprintf(stream, "\n");
} else if (strcmp(cmd, "lm") == 0) {
names = bfaccess->bflogic_names(&i);
if (names != NULL) {
fprintf(stream, "Logic modules:\n");
for (n = 0; n < i; n++) {
fprintf(stream, " %d: \"%s\"\n", n, names[n]);
}
fprintf(stream, "\n");
}
FOR_IN_AND_OUT {
names = bfaccess->bfio_names(IO, &i);
if (names != NULL) {
fprintf(stream, "%s modules:\n", (IO == IN) ? "Input" :
"Output");
for (n = 0; n < i; n++) {
bfaccess->bfio_range(IO, n, range);
fprintf(stream, " %d (%d - %d): \"%s\"\n",
n, range[0], range[1], names[n]);
}
fprintf(stream, "\n");
}
}
} else if (strstr(cmd, "cffa") == cmd) {
if (get_id(stream, cmd + 4, &cmd, &rid, FILTER_ID, -1) &&
get_id(stream, cmd, &cmd, &id, FILTER_ID, rid))
{
if (*cmd == 'M' || *cmd == 'm') {
cmd++;
att = strtod(cmd, &p);
if (cmd == p) {
fprintf(stream, "Invalid input multiplier.\n");
} else {
newstate.fctrl[rid].fscale[id] = att;
newstate.fchanged[rid] = true;
}
} else {
att = strtod(cmd, &p);
if (cmd == p) {
fprintf(stream, "Invalid input attenuation.\n");
} else {
if (newstate.fctrl[rid].fscale[id] < 0) {
newstate.fctrl[rid].fscale[id] = -pow(10, -att / 20);
} else {
newstate.fctrl[rid].fscale[id] = pow(10, -att / 20);
}
newstate.fchanged[rid] = true;
}
}
}
} else if (strstr(cmd, "cfia") == cmd) {
if (get_id(stream, cmd + 4, &cmd, &rid, FILTER_ID, -1) &&
get_id(stream, cmd, &cmd, &id, INPUT_ID, rid))
{
if (*cmd == 'M' || *cmd == 'm') {
cmd++;
att = strtod(cmd, &p);
if (cmd == p) {
fprintf(stream, "Invalid input multiplier.\n");
} else {
newstate.fctrl[rid].scale[IN][id] = att;
newstate.fchanged[rid] = true;
}
} else {
att = strtod(cmd, &p);
if (cmd == p) {
fprintf(stream, "Invalid input attenuation.\n");
} else {
if (newstate.fctrl[rid].scale[IN][id] < 0) {
newstate.fctrl[rid].scale[IN][id] = -pow(10, -att / 20);
} else {
newstate.fctrl[rid].scale[IN][id] = pow(10, -att / 20);
}
newstate.fchanged[rid] = true;
}
}
}
} else if (strstr(cmd, "cfoa") == cmd) {
if (get_id(stream, cmd + 4, &cmd, &rid, FILTER_ID, -1) &&
get_id(stream, cmd, &cmd, &id, OUTPUT_ID, rid))
{
if (*cmd == 'M' || *cmd == 'm') {
cmd++;
att = strtod(cmd, &p);
if (cmd == p) {
fprintf(stream, "Invalid output multiplier.\n");
} else {
newstate.fctrl[rid].scale[OUT][id] = att;
newstate.fchanged[rid] = true;
}
} else {
att = strtod(cmd, &p);
if (cmd == p) {
fprintf(stream, "Invalid output attenuation.\n");
} else {
if (newstate.fctrl[rid].scale[OUT][id] < 0) {
newstate.fctrl[rid].scale[OUT][id] =
-pow(10, -att / 20);
} else {
newstate.fctrl[rid].scale[OUT][id] = pow(10, -att / 20);
}
newstate.fchanged[rid] = true;
}
}
}
} else if (strstr(cmd, "cid") == cmd) {
if (get_id(stream, cmd + 3, &cmd, &id, INPUT_ID, -1)) {
n = strtol(cmd, &p, 10);
if (cmd == p || n < 0) {
fprintf(stream, "Invalid input delay.\n");
} else {
newstate.delay[IN][id] = n;
}
cmd = p;
n = strtol(cmd, &p, 10);
if (cmd != p) {
if (n <= -BF_SAMPLE_SLOTS || n >= BF_SAMPLE_SLOTS) {
fprintf(stream, "Invalid input subdelay.\n");
} else {
newstate.subdelay[IN][id] = n;
}
}
}
} else if (strstr(cmd, "cod") == cmd) {
if (get_id(stream, cmd + 3, &cmd, &id, OUTPUT_ID, -1)) {
n = strtol(cmd, &p, 10);
if (cmd == p || n < 0) {
fprintf(stream, "Invalid output delay.\n");
} else {
newstate.delay[OUT][id] = n;
}
cmd = p;
n = strtol(cmd, &p, 10);
if (cmd != p) {
if (n <= -BF_SAMPLE_SLOTS || n >= BF_SAMPLE_SLOTS) {
fprintf(stream, "Invalid output subdelay.\n");
} else {
newstate.subdelay[OUT][id] = n;
}
}
}
} else if (strstr(cmd, "cfc") == cmd) {
if (get_id(stream, cmd + 3, &cmd, &rid, FILTER_ID, -1) &&
get_id(stream, cmd, &cmd, &id, COEFF_ID, rid))
{
newstate.fctrl[rid].coeff = id;
newstate.fchanged[rid] = true;
}
} else if (strstr(cmd, "cfd") == cmd) {
if (get_id(stream, cmd + 3, &cmd, &rid, FILTER_ID, -1)) {
n = strtol(cmd, &p, 10);
if (cmd == p || n < 0 || n > n_maxblocks - 1) {
fprintf(stream, "Invalid filter delay.\n");
} else {
newstate.fctrl[rid].delayblocks = n;
newstate.fchanged[rid] = true;
}
}
} else if (strstr(cmd, "tmo") == cmd) {
if (get_id(stream, cmd + 3, &cmd, &id, OUTPUT_ID, -1)) {
newstate.toggle_mute[OUT][id] = !newstate.toggle_mute[OUT][id];
}
} else if (strstr(cmd, "tmi") == cmd) {
if (get_id(stream, cmd + 3, &cmd, &id, INPUT_ID, -1)) {
newstate.toggle_mute[IN][id] = !newstate.toggle_mute[IN][id];
}
} else if (strstr(cmd, "imc") == cmd) {
id = strtol(cmd + 3, &p, 10);
if (p == cmd + 3) {
id = -1;
}
if (bfaccess->bfio_command(IN, id, p, &p) == -1) {
fprintf(stream, "Command failed: %s\n", p);
} else {
fprintf(stream, "%s", p);
}
} else if (strstr(cmd, "omc") == cmd) {
id = strtol(cmd + 3, &p, 10);
if (p == cmd + 3) {
id = -1;
}
if (bfaccess->bfio_command(OUT, id, p, &p) == -1) {
fprintf(stream, "Command failed: %s\n", p);
} else {
fprintf(stream, "%s", p);
}
} else if (strstr(cmd, "lmc") == cmd) {
id = strtol(cmd + 3, &p, 10);
if (p == cmd + 3) {
id = -1;
names = bfaccess->bflogic_names(&i);
if (names != NULL) {
p = strtrim(cmd + 3);
for (n = 0; n < i; n++) {
if (strstr(p, names[n]) == p) {
id = n;
p += strlen(names[n]);
break;
}
}
}
}
if (bfaccess->bflogic_command(id, p, &p) == -1) {
fprintf(stream, "Command failed: %s\n", p);
} else {
fprintf(stream, "%s", p);
}
} else if (strcmp(cmd, "ppk") == 0) {
print_overflows(stream);
} else if (strcmp(cmd, "rpk") == 0) {
bfaccess->reset_peak();
} else if (strcmp(cmd, "upk") == 0) {
print_peak_updates = !print_peak_updates;
} else if (strcmp(cmd, "tp") == 0) {
print_prompt = !print_prompt;
} else if (strcmp(cmd, "rti") == 0) {
fprintf(stream, "Realtime index: %.3f\n", bfaccess->realtime_index());
} else if (strcmp(cmd, "quit") == 0) {
return false;
} else if (strstr(cmd, "sleep") == cmd) {
memset(&sleep_task, 0, sizeof(struct sleep_task));
if ((p = strchr(cmd + 5, 'b')) != NULL) {
n = strtol(p + 1, &p, 10);
if (p != NULL && n >= 0) {
sleep_task.block_sleep = true;
sleep_task.do_sleep = true;
sleep_task.blocks = n;
}
} else {
n = strtol(cmd + 5, &p, 10);
if (p != NULL && n >= 0) {
sleep_task.do_sleep = true;
sleep_task.seconds = n;
sleep_task.useconds = atoi(p) * 1000;
}
}
if (sleep_task.do_sleep) {
if (_sleep_task == NULL) {
if (sleep_task.block_sleep) {
fprintf(stream, "Block sleep only valid in scripts\n");
} else {
if (sleep_task.seconds > 0) {
sleep(sleep_task.seconds);
}
if (sleep_task.useconds > 0) {
usleep(sleep_task.useconds);
}
}
} else {
memcpy(_sleep_task, &sleep_task, sizeof(struct sleep_task));
}
}
} else if (strstr(cmd, "abort") == cmd) {
bfaccess->exit(BF_EXIT_OK);
} else if (strcmp(cmd, "help") == 0) {
fprintf(stream, HELP_TEXT);
} else {
fprintf(stream, "Unknown command \"%s\", type \"help\" for help.\n",
cmd);
}
return true;
}
static void
wait_data(FILE *client_stream,
int client_fd,
int callback_fd)
{
fd_set rfds;
uint32_t msg;
int n;
FD_ZERO(&rfds);
do {
FD_SET(client_fd, &rfds);
FD_SET(callback_fd, &rfds);
if (client_stream != NULL) {
fflush(client_stream);
}
while ((n = select(client_fd < callback_fd ? callback_fd + 1 :
client_fd + 1, &rfds, NULL, NULL, NULL)) == -1
&& errno == EINTR);
if (n == -1) {
fprintf(stderr, "CLI: Select failed: %s.\n", strerror(errno));
bfaccess->exit(BF_EXIT_OTHER);
}
if (FD_ISSET(callback_fd, &rfds)) {
if (!readfd(callback_fd, &msg, 4)) {
bfaccess->exit(BF_EXIT_OK);
}
switch (msg) {
case BF_FDEVENT_PEAK:
if (print_peak_updates) {
print_overflows(client_stream);
}
break;
default:
fprintf(stderr, "CLI: Invalid callback code: %d.\n", msg);
bfaccess->exit(BF_EXIT_OTHER);
break;
}
}
} while (!FD_ISSET(client_fd, &rfds));
}
static bool_t
parse(FILE *stream,
const char cmd[],
struct sleep_task *sleep_task)
{
char *p, *s, *s1, *buf;
bool_t do_quit;
int len;
if (sleep_task != NULL) {
memset(sleep_task, 0, sizeof(struct sleep_task));
}
do_quit = false;
len = strlen(cmd);
if (len == 0) {
return true;
}
buf = alloca(len + 1);
memcpy(buf, cmd, len + 1);
if (buf[len - 1] == '\n') {
buf[len - 1] = '\0';
}
if (len > 1 && buf[len - 2] == '\r') {
buf[len - 2] = '\0';
}
s = buf;
clear_changes();
do {
if ((p = strchr(s, ';')) != NULL) {
*p = '\0';
}
while (*s == ' ' || *s == '\t') s++;
if (*s != '\0') {
s1 = strtrim(s);
if (print_commands) {
fprintf(stream, "%s\n", s1);
}
if (!parse_command(stream, s1, sleep_task)) {
do_quit = true;
}
} else if (are_changes()) {
bfaccess->control_mutex(1);
commit_changes(stream);
bfaccess->control_mutex(0);
clear_changes();
}
} while ((s = p + 1) != (char *)1);
if (are_changes()) {
bfaccess->control_mutex(1);
commit_changes(stream);
bfaccess->control_mutex(0);
}
return !do_quit;
}
static void
block_start(struct bfaccess *_bfaccess,
unsigned int block_index,
struct timeval *current_time)
{
static char *p = NULL, *p1, *p2;
static bool_t do_quit = false, do_sleep = false, sleep_block;
static unsigned int sleep_block_index;
static struct timeval sleep_time;
static bool_t retchr, cmdchr;
static char restore_char;
struct sleep_task sleep_task;
struct timeval tv;
bfaccess = _bfaccess;
fctrl = _bfaccess->fctrl;
if (do_quit) {
return;
}
if (do_sleep) {
if (sleep_block) {
if (block_index <= sleep_block_index) {
return;
}
} else {
if (timercmp(current_time, &sleep_time, <)) {
return;
}
}
do_sleep = false;
}
if (p == NULL) {
p = script;
}
cmdchr = false;
retchr = false;
p1 = p;
/* this loop extracts the next non-empty line, and handles wrap */
while ((*p1 != '\0' && *p1 != '\n') || !cmdchr) {
switch ((int)*p1) {
case ' ': case '\t': case '\r':
break;
case '\n':
p = &p1[1];
break;
case '\0':
if (p == script) {
fprintf(stderr, "CLI: the script is empty.\n");
bfaccess->exit(BF_EXIT_INVALID_CONFIG);
}
p = script;
p1 = &p[-1];
break;
default:
cmdchr = true;
break;
}
p1++;
}
/* search for empty statements on the line */
cmdchr = false;
p2 = p;
while (p2 < p1) {
switch ((int)*p2) {
case ';':
if (!cmdchr) {
/* empty statement, treat as linebreak */
p1 = p2;
}
cmdchr = false;
break;
case ' ': case '\t': case '\r':
break;
default:
cmdchr = true;
break;
}
p2++;
}
/* handle \r\n line ends */
restore_char = *p1;
*p1 = '\0';
if (p1 != script && p1[-1] == '\r') {
retchr = true;
p1[-1] = '\0';
}
if (!parse(stderr, p, &sleep_task)) {
do_quit = true;
}
if (retchr) {
p1[-1] = '\r';
}
*p1 = restore_char;
if (*p1 == '\0') {
/* wrap */
p = script;
} else {
p = &p1[1];
}
if (sleep_task.do_sleep) {
do_sleep = true;
if (sleep_task.block_sleep) {
sleep_block = true;
sleep_block_index = block_index + sleep_task.blocks;
} else {
sleep_block = false;
tv.tv_sec = sleep_task.seconds;
tv.tv_usec = sleep_task.useconds;
timeradd(current_time, &tv, &sleep_time);
}
}
}
static void
parse_string(FILE *stream,
const char inbuf[MAXCMDLINE],
char cmd[MAXCMDLINE])
{
int slen, n, i;
slen = strlen(inbuf);
cmd[0] = '\0';
for (n = 0, i = 0; n < slen; n++) {
switch ((int)inbuf[n]) {
case 27:
fprintf(stream, "ESC sequences not supported, "