/**
* trace_seq_printf - sequence printing of trace information
* @s: trace sequence descriptor
* @fmt: printf format string
*
* It returns 0 if the trace oversizes the buffer's free
* space, 1 otherwise.
*
* The tracer may use either sequence operations or its own
* copy to user routines. To simplify formating of a trace
* trace_seq_printf is used to store strings into a special
* buffer (@s). Then the output may be either used by
* the sequencer or pulled into another buffer.
*/
int
trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
{
va_list ap;
int len;
int ret;
TRACE_SEQ_CHECK(s);
try_again:
len = (s->buffer_size - 1) - s->len;
va_start(ap, fmt);
ret = vsnprintf(s->buffer + s->len, len, fmt, ap);
va_end(ap);
if (ret >= len) {
expand_buffer(s);
goto try_again;
}
s->len += ret;
return 1;
}
static bool_t burp_putbytes(XDR* xdrs, const SCHAR* buff, u_int bytecount)
{
/**************************************
*
* b u r p _ p u t b y t e s
*
**************************************
*
* Functional description
* Fetch a bunch of bytes into a memory stream if it fits.
*
**************************************/
if (bytecount && xdrs->x_handy >= (int) bytecount)
{
xdrs->x_handy -= bytecount;
do {
*xdrs->x_private++ = *buff++;
} while (--bytecount);
return TRUE;
}
while (bytecount)
{
if (xdrs->x_handy <= 0 && !expand_buffer(xdrs))
{
return FALSE;
}
--xdrs->x_handy;
*xdrs->x_private++ = *buff++;
--bytecount;
}
return TRUE;
}
void write(const char* buf, unsigned int len)
{
if(base::alloc - base::size < len) {
expand_buffer(len);
}
memcpy(base::data + base::size, buf, len);
base::size += len;
}
inline void write(const char* buf, size_t len)
{
if(m_allocated - m_used < len) {
expand_buffer(len);
}
memcpy(m_storage + m_used, buf, len);
m_used += len;
}
void append(const char* buf, std::size_t len)
{
if(_alloc - _size < len)
{
expand_buffer(len);
}
memcpy(_data + _size, buf, len);
_size += len;
}
int trace_seq_putc(struct trace_seq *s, unsigned char c)
{
TRACE_SEQ_CHECK(s);
while (s->len >= (s->buffer_size - 1))
expand_buffer(s);
s->buffer[s->len++] = c;
return 1;
}
/*
* Function used by YAP to write a char to a string
*/
static void
p2c_putc(const int c) {
// if( buffer.size==buffer.len+1 )
if( BUFFER_SIZE==BUFFER_LEN ) {
#ifdef DEBUG
write_msg(__FUNCTION__,__FILE__,__LINE__,"p2c_putc:buffer expanded: size=%u pos=%u len=%u\n",BUFFER_SIZE,BUFFER_POS,BUFFER_LEN);
#endif
expand_buffer( BLOCK_SIZE );
}
BUFFER_PTR[BUFFER_LEN++] = c;
}
/*
* Function used by YAP to write a char to a string
*/
static void
p2c_putt(const YAP_Term t) {
// if( buffer.size==buffer.len+1 )
while ((BUFFER_LEN=YAP_ExportTerm(t, BUFFER_PTR, BUFFER_SIZE)) <= 0) {
#ifdef DEBUG
write_msg(__FUNCTION__,__FILE__,__LINE__,"p2c_putc:buffer expanded: size=%u pos=%u len=%u\n",BUFFER_SIZE,BUFFER_POS,BUFFER_LEN);
#endif
expand_buffer( BLOCK_SIZE );
}
}
void append(const char c, std::size_t count)
{
if(count)
{
if(_alloc - _size < count)
{
expand_buffer(count);
}
std::memset(_data + _size, c, count);
_size += count;
}
}
/*
* Read a prolog term from a stream
* (the prolog term must have been writen by the write_term_to_stream)
*/
YAP_Term
read_term_from_stream(const int fd) {
size_t size;
RESET_BUFFER;
read(fd,(void*)&size,sizeof(size_t)); // read the size of the term
#ifdef DEBUG
write_msg(__FUNCTION__,__FILE__,__LINE__,"read_term_from_stream>>>>size:%d\n",size);
#endif
if ( size> BUFFER_SIZE)
expand_buffer(size-BUFFER_SIZE);
read(fd,BUFFER_PTR,size); // read term from stream
return YAP_Read( p2c_getc );
}
/* helper for print_special_fp(): appends string, pads with space if needed */
static void append_padded(struct string_builder *bld, const char *str, int width)
{
size_t len = strlen(str);
size_t tmpwidth = width < 0 ? 0 : width;
if (tmpwidth > len) {
size_t pad = tmpwidth - len;
expand_buffer(bld, pad);
while (pad--) {
bld->buf[bld->len++] = ' ';
}
}
append_string(bld, str, len);
}
/**
* trace_seq_puts - trace sequence printing of simple string
* @s: trace sequence descriptor
* @str: simple string to record
*
* The tracer may use either the sequence operations or its own
* copy to user routines. This function records a simple string
* into a special buffer (@s) for later retrieval by a sequencer
* or other mechanism.
*/
int trace_seq_puts(struct trace_seq *s, const char *str)
{
int len;
TRACE_SEQ_CHECK(s);
len = strlen(str);
while (len > ((s->buffer_size - 1) - s->len))
expand_buffer(s);
memcpy(s->buffer + s->len, str, len);
s->len += len;
return len;
}
/*
* Read a prolog term from a stream
* (the prolog term must have been writen by the write_term_to_stream)
*/
YAP_Term
read_term_from_stream(const int fd) {
size_t size;
RESET_BUFFER();
if (!read(fd,(void*)&size,sizeof(size_t))) { // read the size of the term
YAP_Error(0,0,"Prolog2Term: IO error in read.\n");
}
#ifdef DEBUG
write_msg(__FUNCTION__,__FILE__,__LINE__,"read_term_from_stream>>>>size:%d\n",size);
#endif
if ( size> BUFFER_SIZE)
expand_buffer(size-BUFFER_SIZE);
if (!read(fd,BUFFER_PTR,size)) {
YAP_Error(0,0,"Prolog2Term: IO error in read.\n");
}; // read term from stream
return YAP_ImportTerm( BUFFER_PTR);
}
/*
* Converts a term t into a string.
* The ascii representation of t is
* copied to ptr if it occupies less than size.
*/
char*
term2string(char *const ptr, size_t *size, const YAP_Term t) {
char *ret;
RESET_BUFFER();
do {
if (*size == 0) {
*size = BUFFER_LEN = YAP_ExportTerm( t, BUFFER_PTR, BUFFER_SIZE );// canonical
ret=BUFFER_PTR;
if (BUFFER_LEN == 0) {
expand_buffer(BLOCK_SIZE);
}
} else {
*size = YAP_ExportTerm( t, ptr, BUFFER_SIZE );// canonical
ret=ptr;
}
} while (*size <= 0);
return ret;
}
/**
* trace_seq_vprintf - sequence printing of trace information
* @s: trace sequence descriptor
* @fmt: printf format string
*
* The tracer may use either sequence operations or its own
* copy to user routines. To simplify formating of a trace
* trace_seq_printf is used to store strings into a special
* buffer (@s). Then the output may be either used by
* the sequencer or pulled into another buffer.
*/
int
trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args)
{
int len;
int ret;
TRACE_SEQ_CHECK(s);
try_again:
len = (s->buffer_size - 1) - s->len;
ret = vsnprintf(s->buffer + s->len, len, fmt, args);
if (ret >= len) {
expand_buffer(s);
goto try_again;
}
s->len += ret;
return len;
}
static void __attribute__ ((optimize("-O3"))) refresh_screen (SDL_Surface *scr)
// uses global line + vga_odd, scale two times
{
uint32_t * restrict dst = (uint32_t*)scr->pixels; // will render 2 pixels at a time horizontally
draw_buffer = mybuffer1; // currently 16bit data
for (vga_line=0;vga_line<screen_height;vga_line++) {
#ifdef VGA_SKIPLINE
vga_odd=0;
graph_line(); // using line, updating draw_buffer ...
#if VGA_BPP==8
expand_buffer();
#endif
vga_odd=1;
graph_line(); // a second time for SKIPLINE modes
#if VGA_BPP==8
expand_buffer();
#endif
#else
graph_line();
#if VGA_BPP==8
expand_buffer();
#endif
#endif
// copy to screen at this position
uint16_t *restrict src = (uint16_t*) draw_buffer;
switch (scale) {
case 1 :
// copy to screen at this position (cheating)
for (int i=0;i<screen_width;i++)
*dst++= pixelconv32(*src++);
break;
case 2 :
for (int i=0;i<screen_width;i++, dst+=2) {
uint32_t pix = pixelconv32(*src++);
*dst = pix; // blit line
*(dst+1) = pix; // blit line
*(dst+scr->pitch/sizeof(uint32_t))=pix; // also next line
*(dst+scr->pitch/sizeof(uint32_t)+1)=pix; // also next line
}
dst += scr->pitch/sizeof(uint32_t); // we already drew the line after, skip it
break;
}
// swap lines buffers to simulate double line buffering
draw_buffer = ( draw_buffer == &mybuffer1[0] ) ? &mybuffer2[0] : &mybuffer1[0];
}
for (;vga_line<screen_height+VSYNC_LINES;vga_line++) {
#ifdef VGA_SKIPLINE
vga_odd=0;
graph_vsync(); // using line, updating draw_buffer ...
vga_odd=1;
graph_vsync(); // a second time for SKIPLINE modes
#else
graph_vsync(); // once
#endif
}
}
void event_handler(int fd, short e, void* args)
{
char* line = NULL;
int len = 0;
int size = 0;
int st = wet->st;
IOstream* stream = &(wet->stream);
WEVENT_T* ev = (WEVENT_T*)args;
if (!isempty_buffer(&ev->buffer)) {
size = cwrite(fd, ev->buffer.cur, ev->buffer.size);
if (size < 0) {
log("write error, %s\n", strerror(errno));
update_stat(STAT_CLOSE_PIPE);
} else {
seek_buffer(&ev->buffer, size);
return;
}
}
switch (st) {
case STAT_READ_MORE:
if (try_read_more(stream) == E_ERROR) {
update_stat(STAT_LAST_BUF);
} else {
update_stat(STAT_WRITE_LINE);
}
break;
case STAT_WRITE_LINE:
if (get_line(stream, &line, &len) == E_NEED_MORE || len == 0) {
update_stat(STAT_READ_MORE);
break;
}
size = cwrite(fd, line, len);
if (size < 0) {
log("write error, %s\n", strerror(errno));
update_stat(STAT_CLOSE_PIPE);
break;
}
if (size < len) {
expand_buffer(&ev->buffer, line + size, len - size);
break;
}
break;
case STAT_LAST_BUF:
if (stream->bytes <= 0) {
update_stat(STAT_CLOSE_PIPE);
break;
}
size = cwrite(fd, stream->cur, stream->bytes);
if (size < 0) {
log("write error, %s\n", strerror(errno));
update_stat(STAT_CLOSE_PIPE);
break;
}
if (size == stream->bytes) {
stream->bytes = 0;
update_stat(STAT_CLOSE_PIPE);
break;
}
if (size < stream->bytes) {
expand_buffer(&ev->buffer, stream->cur+size, stream->bytes-size);
stream->bytes = 0;
break;
}
break;
case STAT_CLOSE_PIPE:
close(fd);
event_del(&ev->e);
break;
}
}
int paralign_score(buffer_t* buffer,
const submat_t<score_t> submat,
const score_t gap_open,
const score_t gap_extend,
const seq_t seq,
const seq_t* refs,
const int n_refs,
alignment_t** alignments)
{
if (n_refs == 0)
return 0;
else if (n_refs < 0)
return 1;
// allocate working space
if (expand_buffer(buffer, sizeof(vec_t) * (seq.len + 1) * 2 +
sizeof(vec_t) * submat.size +
sizeof(uint8_t) * seq.len)) {
return 1;
}
// NOTE: colE[0] is not used
vec_t* colE = (vec_t*)buffer->data;
vec_t* colH = colE + seq.len + 1;
vec_t* prof = colH + seq.len + 1;
uint8_t* useq = reinterpret_cast<uint8_t*>(prof + submat.size);
// unpack sequence
for (size_t i = 0; i < seq.len; i++)
useq[i] = seq[i];
// initialize slots which hold the reference sequences
const int n_max_par = sizeof(vec_t) / sizeof(score_t);
std::array<slot_t,n_max_par> slots;
slots.fill(empty_slot);
int next_ref = 0;
// outer loop along refs
while (true) {
// initialize the slots and the column vectors
for (int k = 0; k < n_max_par; k++) {
slot_t &slot = slots[k];
if (slot != empty_slot) {
slot.pos++;
if (slot.pos < refs[slot.id].len)
continue;
else
(*alignments[slot.id]).score = simd_extract<score_t>(colH[seq.len], k);
}
// find the next non-empty sequences if any
bool found = false;
while (next_ref < n_refs && !found) {
// reset E and H
colH[0] = simd_insert<score_t>(colH[0], 0, k);
for (int i = 1; i <= seq.len; i++) {
score_t h = affine_gap_score(i, gap_open, gap_extend);
colH[i] = simd_insert(colH[i], h, k);
colE[i] = simd_insert(colE[i], static_cast<score_t>(h - (gap_open + gap_extend)), k);
}
seq_t ref = refs[next_ref];
if (ref.len == 0) {
(*alignments[next_ref++]).score = simd_extract<score_t>(colH[seq.len], k);
}
else {
slot.id = next_ref++;
slot.pos = 0;
found = true;
}
}
if (!found)
slots[k] = empty_slot;
}
// check if there are remaining slots
if (is_vacant(slots))
break;
// fill the temporary profile
fill_profile(refs, slots, submat, prof);
// inner loop along seq
// TODO: detect saturation
loop(useq, seq.len, prof, slots, gap_open, gap_extend, colE, colH);
}
return 0;
}
/* appends a literal string */
static void append_string(struct string_builder *bld, const char *str, size_t len)
{
expand_buffer(bld, len);
memcpy(bld->buf + bld->len, str, len);
bld->len += len;
}
/* the actual string format parser
* Although it's not in the documentation of `printf()`, but in addition to the
* `%d` conversion specifier, this supports `%i`, which takes an `int` argument
* instead of a `long`. It is used only for formatting error messages (since
* Sparkling integers are all `long`s), but feel free to use it yourself.
*
* if `errmsg' is not a NULL pointer, and an error occurred while creating the
* format string, then on return, `*errmsg' will point to a string containing
* a message that describes the error.
*/
static char *make_format_string(
const char *fmt,
size_t *len,
int argc,
void *argv,
int isval,
char **errmsg
)
{
struct string_builder bld;
int argidx = 0;
const char *s = fmt;
const char *p = s; /* points to the beginning of the next
* non-format part of the format string
*/
init_builder(&bld);
while (*s) {
if (*s == '%') {
struct format_args args;
init_format_args(&args);
/* append preceding non-format string chunk */
if (s > p) {
append_string(&bld, p, s - p);
}
s++;
/* Actually parse the format string.
* '#' flag: prepend base prefix (0b, 0, 0x)
*/
if (*s == '#') {
args.flags |= FLAG_BASEPREFIX;
s++;
}
/* ' ' (space) flag: prepend space if non-negative
* '+' flag: always prepend explicit + or - sign
*/
if (*s == ' ') {
args.flags |= FLAG_PADSIGN;
s++;
} else if (*s == '+') {
args.flags |= FLAG_EXPLICITSIGN;
s++;
}
/* leading 0 flag: pad field with zeroes */
if (*s == '0') {
args.flags |= FLAG_ZEROPAD;
s++;
}
/* field width specifier */
if (isdigit(*s)) {
args.width = 0;
while (isdigit(*s)) {
args.width *= 10;
args.width += *s++ - '0';
}
} else if (*s == '*') {
s++;
if (isval) {
SpnValue *widthptr;
/* check argc if the caller wants us to do so */
if (argc >= 0 && argidx >= argc) {
format_errmsg(errmsg, OUT_OF_ARGUMENTS, argidx);
free(bld.buf);
return NULL;
}
/* width specifier must be an integer */
widthptr = getarg_val(argv, &argidx);
if (!isnum(widthptr)) {
format_errmsg(
errmsg,
TYPE_MISMATCH,
argidx,
SPN_TTAG_NUMBER,
widthptr->type
);
free(bld.buf);
return NULL;
}
if (isfloat(widthptr)) {
format_errmsg(
errmsg,
EXPECT_INTEGER,
argidx
);
free(bld.buf);
return NULL;
}
args.width = intvalue(widthptr);
} else {
const int *widthptr = getarg_raw(argv, &argidx);
args.width = *widthptr;
}
}
/* precision/maximal length specifier */
if (*s == '.') {
s++;
if (*s == '+') {
args.flags |= FLAG_EXPONENTSIGN;
s++;
}
args.precision = 0;
if (isdigit(*s)) {
while (isdigit(*s)) {
args.precision *= 10;
args.precision += *s++ - '0';
}
} else if (*s == '*') {
s++;
if (isval) {
SpnValue *precptr;
/* check argc if the caller wants us to do so */
if (argc >= 0 && argidx >= argc) {
format_errmsg(errmsg, OUT_OF_ARGUMENTS, argidx);
free(bld.buf);
return NULL;
}
/* precision must be an integer too */
precptr = getarg_val(argv, &argidx);
if (!isnum(precptr)) {
format_errmsg(
errmsg,
TYPE_MISMATCH,
argidx,
SPN_TTAG_NUMBER,
precptr->type
);
free(bld.buf);
return NULL;
}
if (isfloat(precptr)) {
format_errmsg(
errmsg,
EXPECT_INTEGER,
argidx
);
free(bld.buf);
return NULL;
}
args.precision = intvalue(precptr);
} else {
const int *precptr = getarg_raw(argv, &argidx);
args.precision = *precptr;
}
}
}
args.spec = *s++;
/* check argc if the caller wants us to do so */
if (argc >= 0 && argidx >= argc) {
format_errmsg(errmsg, OUT_OF_ARGUMENTS, argidx);
free(bld.buf);
return NULL;
}
/* append parsed format string */
if (append_format(&bld, &args, argv, &argidx, isval, errmsg) != 0) {
free(bld.buf);
return NULL;
}
/* update non-format chunk base pointer */
p = s;
} else {
s++;
}
}
/* if the format string doesn't end with a conversion specifier,
* then just append the last non-format (literal) string chunk
*/
if (s > p) {
append_string(&bld, p, s - p);
}
/* append terminating NUL byte */
expand_buffer(&bld, 1);
bld.buf[bld.len] = 0;
if (len != NULL) {
*len = bld.len;
}
return bld.buf;
}
/* returns zero on success, nonzero on error */
static int append_format(
struct string_builder *bld,
const struct format_args *args,
void *argv,
int *argidx,
int isval,
char **errmsg
)
{
switch (args->spec) {
case '%':
append_string(bld, "%", 1);
break;
case 's': {
const char *str;
size_t len;
if (isval) {
SpnString *strobj;
/* must be a string */
SpnValue *val = getarg_val(argv, argidx);
if (!isstring(val)) {
format_errmsg(
errmsg,
TYPE_MISMATCH,
*argidx,
SPN_TYPE_STRING,
val->type
);
return -1;
}
strobj = stringvalue(val);
str = strobj->cstr;
len = strobj->len;
} else {
str = getarg_raw(argv, argidx);
len = strlen(str);
}
if (args->precision >= 0 && args->precision < len) {
len = args->precision;
}
if (args->width >= 0 && args->width > len) {
size_t pad = args->width - len;
expand_buffer(bld, pad);
while (pad-- > 0) {
bld->buf[bld->len++] = ' ';
}
}
append_string(bld, str, len);
break;
}
case 'i':
case 'd':
case 'b':
case 'o':
case 'u':
case 'x':
case 'X': {
char *buf, *end, *begin;
size_t len = PR_LONG_DIGITS;
enum format_flags flags = args->flags;
unsigned base = base_for_specifier(args->spec);
long n;
unsigned long u;
if (isval) {
/* must be a number */
SpnValue *val = getarg_val(argv, argidx);
if (!isnum(val)) {
format_errmsg(
errmsg,
TYPE_MISMATCH,
*argidx,
SPN_TTAG_NUMBER,
val->type
);
return -1;
}
if (isint(val)) {
n = intvalue(val);
} else {
n = floatvalue(val); /* truncate */
}
} else {
/* "%i" expects an int, others expect a long */
if (args->spec == 'i') {
n = *(const int *)getarg_raw(argv, argidx);
} else {
n = *(const long *)getarg_raw(argv, argidx);
}
}
if (args->spec == 'i' || args->spec == 'd') {
/* signed conversion specifiers */
if (n < 0) {
flags |= FLAG_NEGATIVE;
u = -n;
} else {
u = n;
}
} else {
/* unsigned conversion specifiers */
u = n;
}
if (args->spec == 'X') {
flags |= FLAG_CAPS;
}
if (args->width >= 0 && args->width > len) {
len = args->width;
}
buf = spn_malloc(len);
end = buf + len;
begin = ulong2str(end, u, base, args->width, flags);
assert(buf <= begin);
append_string(bld, begin, end - begin);
free(buf);
break;
}
case 'c': {
unsigned char ch;
int len = 1; /* one character is one character long... */
if (isval) {
/* must be an integer */
SpnValue *val = getarg_val(argv, argidx);
if (!isnum(val)) {
format_errmsg(
errmsg,
TYPE_MISMATCH,
*argidx,
SPN_TTAG_NUMBER,
val->type
);
return -1;
}
if (isfloat(val)) {
format_errmsg(errmsg, EXPECT_INTEGER, *argidx);
return -1;
}
ch = intvalue(val);
} else {
ch = *(const long *)getarg_raw(argv, argidx);
}
if (args->width > len) {
len = args->width;
}
expand_buffer(bld, len);
while (len-- > 1) {
bld->buf[bld->len++] = ' ';
}
bld->buf[bld->len++] = ch;
break;
}
case 'f':
case 'F': {
char *buf, *end, *begin;
size_t len;
int prec;
double x;
enum format_flags flags = args->flags;
if (isval) {
SpnValue *val = getarg_val(argv, argidx);
if (!isnum(val)) {
format_errmsg(
errmsg,
TYPE_MISMATCH,
*argidx,
SPN_TTAG_NUMBER,
val->type
);
return -1;
}
if (isfloat(val)) {
x = floatvalue(val);
} else {
x = intvalue(val);
}
} else {
x = *(const double *)getarg_raw(argv, argidx);
}
if (args->spec == 'F') {
flags |= FLAG_CAPS;
}
/* handle special cases */
if (+1.0 / x == +1.0 / -0.0) {
/* negative zero: set sign flag and carry on */
flags |= FLAG_NEGATIVE;
} else if (
x != x /* NaN */
|| x == +1.0 / 0.0 /* +inf */
|| x == -1.0 / 0.0 /* -inf */
) {
print_special_fp(bld, flags, args->width, x);
break;
}
if (x < 0.0) {
flags |= FLAG_NEGATIVE;
x = -x;
}
/* at this point, `x' is non-negative or -0 */
if (x >= 1.0) {
len = ceil(log10(x)) + 1; /* 10 ^ n is n + 1 digits long */
} else {
len = 1; /* leading zero needs exactly one character */
}
prec = args->precision < 0 ? DBL_DIG : args->precision;
len += prec + 3; /* decimal point, sign, leading zero */
if (args->width >= 0 && args->width > len) {
len = args->width;
}
buf = spn_malloc(len);
end = buf + len;
begin = double2str(end, x, args->width, prec, flags);
assert(buf <= begin);
append_string(bld, begin, end - begin);
free(buf);
break;
}
case 'B': {
int boolval;
const char *str;
size_t len;
if (isval) {
/* must be a boolean */
SpnValue *val = getarg_val(argv, argidx);
if (!isbool(val)) {
format_errmsg(
errmsg,
TYPE_MISMATCH,
*argidx,
SPN_TTAG_BOOL,
val->type
);
return -1;
}
boolval = boolvalue(val);
} else {
boolval = *(const int *)getarg_raw(argv, argidx);
}
str = boolval ? "true" : "false";
len = strlen(str);
if (args->precision >= 0 && args->precision < len) {
len = args->precision;
}
if (args->width >= 0 && args->width > len) {
size_t pad = args->width - len;
expand_buffer(bld, pad);
while (pad-- > 0) {
bld->buf[bld->len++] = ' ';
}
}
append_string(bld, str, len);
break;
}
default:
format_errmsg(errmsg, INVALID_SPECIFIER, ++*argidx, args->spec);
return -1;
}
return 0;
}