void buffer_test(void)
{
uint8 d1[] = { 1,2,3,4,5,0xf0,5,6,0xff,0xf0,0xf1,0xf0,0x02,0xff,4,5};
uint8 d2[] = { 1,2,3,4,5,0xf0,5,6,0xff,0xf0,0xf2,0x0,0x02,0xff,4,5};
uint8 d3[] = { 1,2,3,4,5,0xf0,5,6,0xff,0xf3,0x0,0x02,0xf0,4,5};
uint8 d4[] = { 1,2,3,4,5,0xf0,5,6,0xff,0xf4,0x0,0x02,0xff,4,5};
buffer_write(d1,sizeof(d1)); while(buffer_check());
buffer_write(d2,sizeof(d2)); while(buffer_check());
buffer_write(d3,sizeof(d3)); while(buffer_check());
buffer_write(d4,sizeof(d4)); while(buffer_check());
}
void TestGame::scan_line(int y, Vertex * va, Vertex * vb, Vertex * vc,
Vertex * vd, Texture * texture) {
float gradient1 = va->coordinates.y != vb->coordinates.y ?
(y - va->coordinates.y) / (vb->coordinates.y - va->coordinates.y) : 1,
gradient2 = vc->coordinates.y != vd->coordinates.y ?
(y - vc->coordinates.y) / (vd->coordinates.y - vc->coordinates.y) : 1;
int sx = (int)interpolate(va->coordinates.x, vb->coordinates.x, gradient1),
ex = (int)interpolate(vc->coordinates.x, vd->coordinates.x, gradient2);
float z1 = interpolate(va->coordinates.z, vb->coordinates.z, gradient1),
z2 = interpolate(vc->coordinates.z, vd->coordinates.z, gradient2),
su = interpolate(va->texture_coordinates.x, vb->texture_coordinates.x,
gradient1),
eu = interpolate(vc->texture_coordinates.x, vd->texture_coordinates.x,
gradient2),
sv = interpolate(va->texture_coordinates.y, vb->texture_coordinates.y,
gradient1),
ev = interpolate(vc->texture_coordinates.y, vd->texture_coordinates.y,
gradient2);
for (int x = sx; x < ex; x++) {
float gradient = (float)(x - sx) / (ex - sx);
float z = interpolate(z1, z2, gradient);
if (!buffer_check(x, y, z)) continue;
buffer_set(x, y, z, texture->map(
interpolate(su, eu, gradient),
interpolate(sv, ev, gradient)));
}
}
static void ebs_overflow_handler(struct perf_event *event, struct perf_sample_data *data, struct pt_regs *regs)
#endif
{
unsigned int value, delta, cpu = smp_processor_id(), buftype = EVENT_BUF;
if (event != per_cpu(pevent, cpu))
return;
if (buffer_check_space(cpu, buftype, 5 * MAXSIZE_PACK32 + MAXSIZE_PACK64)) {
value = local64_read(&event->count);
delta = value - per_cpu(prev_value, cpu);
per_cpu(prev_value, cpu) = value;
// Counters header
gator_buffer_write_packed_int(cpu, buftype, MESSAGE_COUNTERS); // type
gator_buffer_write_packed_int64(cpu, buftype, gator_get_time()); // time
// Output counter
gator_buffer_write_packed_int(cpu, buftype, 2); // length
gator_buffer_write_packed_int(cpu, buftype, per_cpu(key, cpu)); // key
gator_buffer_write_packed_int(cpu, buftype, delta); // delta
// End Counters, length of zero
gator_buffer_write_packed_int(cpu, buftype, 0);
}
// Output backtrace
if (buffer_check_space(cpu, buftype, gator_backtrace_depth * 2 * MAXSIZE_PACK32))
gator_add_sample(cpu, buftype, regs);
// Check and commit; commit is set to occur once buffer is 3/4 full
buffer_check(cpu, buftype);
}
/*
* Convert the names of personal mailboxes, using the namespace specified
* by the mail server, from internal to mail server format.
*/
const char *
apply_namespace(const char *mbox, char *prefix, char delim)
{
int n;
char *c;
if ((prefix == NULL && delim == '\0') ||
(prefix == NULL && delim == '/') ||
!strcasecmp(mbox, "INBOX"))
return mbox;
buffer_reset(&nbuf);
n = snprintf(nbuf.data, nbuf.size + 1, "%s%s", (prefix ? prefix : ""),
mbox);
if (n > (int)nbuf.size) {
buffer_check(&nbuf, n);
snprintf(nbuf.data, nbuf.size + 1, "%s%s",
(prefix ? prefix : ""), mbox);
}
c = nbuf.data;
while ((c = strchr(c, '/')))
*(c++) = delim;
debug("namespace: '%s' -> '%s'\n", mbox, nbuf.data);
return nbuf.data;
}
/*
* Convert the names of personal mailboxes, using the namespace specified by
* the mail server, from mail server format to internal format.
*/
const char *
reverse_namespace(const char *mbox, char *prefix, char delim)
{
int n, o;
char *c;
if ((prefix == NULL && delim == '\0') ||
(prefix == NULL && delim == '/') ||
!strcasecmp(mbox, "INBOX"))
return mbox;
buffer_reset(&nbuf);
o = strlen(prefix ? prefix : "");
if (strncasecmp(mbox, (prefix ? prefix : ""), o))
o = 0;
n = snprintf(nbuf.data, nbuf.size + 1, "%s", mbox + o);
if (n > (int)nbuf.size) {
buffer_check(&nbuf, n);
snprintf(nbuf.data, nbuf.size + 1, "%s", mbox + o);
}
c = nbuf.data;
while ((c = strchr(c, delim)))
*(c++) = '/';
debug("namespace: '%s' <- '%s'\n", mbox, nbuf.data);
return nbuf.data;
}
/*
* Get server data and make sure there is a continuation response inside them.
*/
int
response_continuation(session *ssn, int tag)
{
int r;
ssize_t n;
buffer_reset(&ibuf);
do {
buffer_check(&ibuf, ibuf.len + INPUT_BUF);
if ((n = receive_response(ssn, ibuf.data + ibuf.len, 0, 1)) ==
-1)
return -1;
ibuf.len += n;
if (check_bye(ibuf.data))
return STATUS_BYE;
} while ((r = check_tag(ibuf.data, ssn, tag)) == STATUS_NONE &&
!check_continuation(ibuf.data));
if (r == STATUS_NO &&
(check_trycreate(ibuf.data) || get_option_boolean("create")))
return STATUS_TRYCREATE;
if (r == STATUS_NONE)
return STATUS_CONTINUE;
return r;
}
static int annotate_release(struct inode *inode, struct file *file)
{
int cpu = 0;
/* synchronize between cores */
spin_lock(&annotate_lock);
if (per_cpu(gator_buffer, cpu)[ANNOTATE_BUF] && buffer_check_space(cpu, ANNOTATE_BUF, MAXSIZE_PACK64 + 3 * MAXSIZE_PACK32)) {
uint32_t pid = current->pid;
gator_buffer_write_packed_int(cpu, ANNOTATE_BUF, get_physical_cpu());
gator_buffer_write_packed_int(cpu, ANNOTATE_BUF, pid);
/* time */
gator_buffer_write_packed_int64(cpu, ANNOTATE_BUF, 0);
/* size */
gator_buffer_write_packed_int(cpu, ANNOTATE_BUF, 0);
}
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, ANNOTATE_BUF, gator_get_time());
spin_unlock(&annotate_lock);
return 0;
}
static void marshal_backtrace_footer(u64 time)
{
int cpu = get_physical_cpu();
gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, MESSAGE_END_BACKTRACE);
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, BACKTRACE_BUF, time);
}
void bufreverse_process_internal(t_bufreverse *x, t_symbol *sym, short argc, t_atom *argv)
{
t_symbol *target = atom_getsym(argv++);
t_symbol *source = atom_getsym(argv++);
float *temp1;
double *temp2;
t_buffer_write_error error;
AH_SIntPtr full_length = buffer_length(source);
AH_SIntPtr i;
double sample_rate = 0;
t_atom_long read_chan = x->read_chan - 1;
// Check source buffer
if (buffer_check((t_object *) x, source, read_chan))
return;
sample_rate = buffer_sample_rate(source);
// Allocate Memory
temp1 = (float *) ALIGNED_MALLOC(full_length * (sizeof(double) + sizeof(float)));
temp2 = (double *) (temp1 + full_length);
// Check momory allocation
if (!temp1)
{
object_error((t_object *)x, "could not allocate temporary memory for processing");
free(temp1);
return;
}
// Read from buffer
buffer_read(source, read_chan, (float *) temp1, full_length);
// Copy to double precision version
for (i = 0; i < full_length; i++)
temp2[i] = temp1[full_length - i - 1];
// Copy out to buffer
error = buffer_write(target, temp2, full_length, x->write_chan - 1, x->resize, sample_rate, 1.);
buffer_write_error((t_object *)x, target, error);
// Free Resources
ALIGNED_FREE(temp1);
if (!error)
outlet_bang(x->process_done);
}
static void marshal_cookie(int cookie, const char *text)
{
int cpu = get_physical_cpu();
/* buffer_check_space already called by marshal_cookie_header */
gator_buffer_write_packed_int(cpu, NAME_BUF, MESSAGE_COOKIE);
gator_buffer_write_packed_int(cpu, NAME_BUF, cookie);
gator_buffer_write_string(cpu, NAME_BUF, text);
buffer_check(cpu, NAME_BUF, gator_get_time());
}
/*
* Process the data that server sent due to IMAP FETCH BODY[] client request,
* ie. FETCH BODY[HEADER], FETCH BODY[TEXT], FETCH BODY[HEADER.FIELDS
* (<fields>)], FETCH BODY[<part>].
*/
int
response_fetchbody(session *ssn, int tag, char **body, size_t *len)
{
int r, match;
unsigned int offset;
ssize_t n;
regexp *re;
if (tag == -1)
return -1;
buffer_reset(&ibuf);
match = -1;
offset = 0;
re = &responses[RESPONSE_FETCH_BODY];
do {
buffer_check(&ibuf, ibuf.len + INPUT_BUF);
if ((n = receive_response(ssn, ibuf.data + ibuf.len, 0, 1)) ==
-1)
return -1;
ibuf.len += n;
if (match != 0) {
match = regexec(re->preg, ibuf.data, re->nmatch,
re->pmatch, 0);
if (match == 0 && re->pmatch[2].rm_so != -1 &&
re->pmatch[2].rm_eo != -1) {
*len = strtoul(ibuf.data + re->pmatch[2].rm_so,
NULL, 10);
offset = re->pmatch[0].rm_eo + *len;
}
}
if (offset != 0 && ibuf.len >= offset) {
if (check_bye(ibuf.data + offset))
return STATUS_BYE;
}
} while (ibuf.len < offset || (r = check_tag(ibuf.data + offset, ssn,
tag)) == STATUS_NONE);
if (match == 0) {
if (re->pmatch[2].rm_so != -1 &&
re->pmatch[2].rm_eo != -1) {
*body = ibuf.data + re->pmatch[0].rm_eo;
} else {
*body = ibuf.data + re->pmatch[3].rm_so;
*len = re->pmatch[3].rm_eo - re->pmatch[3].rm_so;
}
}
return r;
}
int canna_proto_recv_request(int id)
{
int datalen, extflag, type;
cannaheader_t *header;
buffer_check(&packetbuf, 24);
if (m_socket_read(client[id].sockfd, packetbuf.buf, 4) < 0) {
/* read エラーはクライアントが勝手に落ちたと判断する */
return -1;
}
header = (cannaheader_t *)(packetbuf.buf);
if (header->type == 0x00) { /* Initialize */
if (m_socket_read(client[id].sockfd, (char *)(&datalen), 4) < 0)
return -1;
datalen = LSBMSB32(datalen);
buffer_check(&packetbuf, datalen);
if (m_socket_read(client[id].sockfd, packetbuf.buf, datalen) < 0)
return -1;
return 0x01;
} else {
datalen = LSBMSB16(header->datalen);
extflag = header->extra ? 0x1000 : 0x0000;
type = header->type;
if (datalen > 0) {
buffer_check(&packetbuf, datalen + 4);
if (m_socket_read(client[id].sockfd, &(packetbuf.buf[4]), datalen) < 0)
return -1;
}
return (type | extflag);
}
}
void
main()
{
int i, j;
int nsubpixels = 1 << (HIBITS+LOBITS);
fixpoint zero, maxpix;
zero = 0;
maxpix = ((NPIXELS-1) << LOBITS) | LOMASK;
InitScreen();
if (verbose) {
printf("zero "); fp_print(zero); printf(", max "); fp_print(maxpix);
printf("\n");
}
for (i=0; i != maxpix + 1; i++) {
for (j=0; j != maxpix + 1; j++) {
if (verbose) {
printf("\n\n************** New Iteration ************\n\n");
printf("%3d, %3d --> ", i, j);
fp_print(i); printf(", "); fp_print(j); printf("\n");
}
clear_buffer();
clear_view_surface(fildes);
fill_color(fildes, 0.5, 0.5, 0.5);
subpixel_triangle(zero, zero, zero, maxpix, i, j);
fill_color(fildes, 0.0, 1.0, 0.0);
subpixel_triangle(zero, zero, maxpix, zero, i, j);
fill_color(fildes, 0.0, 0.0, 1.0);
subpixel_triangle(zero, maxpix, maxpix, maxpix, i, j);
fill_color(fildes, 1.0, 0.0, 0.0);
subpixel_triangle( maxpix, zero, maxpix, maxpix, i, j);
buffer_check();
make_picture_current(fildes);
if (verbose) {
printf(" hit <return> for next iteration\n");
getchar();
}
}
}
}
/*
* Sends to server data; a command.
*/
int
send_request(session *ssn, const char *fmt,...)
{
int n;
va_list args;
int t = tag;
if (ssn->socket == -1)
return -1;
buffer_reset(&obuf);
obuf.len = snprintf(obuf.data, obuf.size + 1, "%04X ", tag);
va_start(args, fmt);
n = vsnprintf(obuf.data + obuf.len, obuf.size - obuf.len -
strlen("\r\n") + 1, fmt, args);
if (n > (int)obuf.size) {
buffer_check(&obuf, n);
vsnprintf(obuf.data + obuf.len, obuf.size - obuf.len -
strlen("\r\n") + 1, fmt, args);
}
obuf.len = strlen(obuf.data);
va_end(args);
snprintf(obuf.data + obuf.len, obuf.size - obuf.len + 1, "\r\n");
obuf.len = strlen(obuf.data);
if (!strncasecmp(fmt, "LOGIN", strlen("LOGIN"))) {
debug("sending command (%d):\n\n%.*s*\r\n\n", ssn->socket,
obuf.len - strlen(ssn->password) - strlen("\"\"\r\n"),
obuf.data);
verbose("C (%d): %.*s*\r\n", ssn->socket, obuf.len -
strlen(ssn->password) - strlen("\"\"\r\n"), obuf.data);
} else {
debug("sending command (%d):\n\n%s\n", ssn->socket, obuf.data);
verbose("C (%d): %s", ssn->socket, obuf.data);
}
if (socket_write(ssn, obuf.data, obuf.len) == -1)
return -1;
if (tag == 0xFFFF) /* Tag always between 0x1000 and 0xFFFF. */
tag = 0x0FFF;
tag++;
return t;
}
static void marshal_idle(int core, int state)
{
unsigned long flags, cpu;
u64 time;
local_irq_save(flags);
cpu = get_physical_cpu();
time = gator_get_time();
if (buffer_check_space(cpu, IDLE_BUF, MAXSIZE_PACK64 + 2 * MAXSIZE_PACK32)) {
gator_buffer_write_packed_int(cpu, IDLE_BUF, state);
gator_buffer_write_packed_int64(cpu, IDLE_BUF, time);
gator_buffer_write_packed_int(cpu, IDLE_BUF, core);
}
local_irq_restore(flags);
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, IDLE_BUF, time);
}
static void marshal_thread_name(int pid, char *name)
{
unsigned long flags, cpu;
u64 time;
local_irq_save(flags);
cpu = get_physical_cpu();
time = gator_get_time();
if (buffer_check_space(cpu, NAME_BUF, TASK_COMM_LEN + 3 * MAXSIZE_PACK32 + MAXSIZE_PACK64)) {
gator_buffer_write_packed_int(cpu, NAME_BUF, MESSAGE_THREAD_NAME);
gator_buffer_write_packed_int64(cpu, NAME_BUF, time);
gator_buffer_write_packed_int(cpu, NAME_BUF, pid);
gator_buffer_write_string(cpu, NAME_BUF, name);
}
local_irq_restore(flags);
buffer_check(cpu, NAME_BUF, time);
}
static void marshal_link(int cookie, int tgid, int pid)
{
unsigned long cpu = get_physical_cpu(), flags;
u64 time;
local_irq_save(flags);
time = gator_get_time();
if (buffer_check_space(cpu, ACTIVITY_BUF, MAXSIZE_PACK64 + 5 * MAXSIZE_PACK32)) {
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, MESSAGE_LINK);
gator_buffer_write_packed_int64(cpu, ACTIVITY_BUF, time);
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, cookie);
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, tgid);
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, pid);
}
local_irq_restore(flags);
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, ACTIVITY_BUF, time);
}
static bool marshal_backtrace_header(int exec_cookie, int tgid, int pid, u64 time)
{
int cpu = get_physical_cpu();
if (!buffer_check_space(cpu, BACKTRACE_BUF, MAXSIZE_PACK64 + 5 * MAXSIZE_PACK32 + gator_backtrace_depth * 2 * MAXSIZE_PACK32)) {
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, BACKTRACE_BUF, time);
return false;
}
gator_buffer_write_packed_int64(cpu, BACKTRACE_BUF, time);
gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, exec_cookie);
gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, tgid);
gator_buffer_write_packed_int(cpu, BACKTRACE_BUF, pid);
return true;
}
static void __maybe_unused marshal_event_single64(int core, int key, long long value)
{
unsigned long flags, cpu;
u64 time;
local_irq_save(flags);
cpu = get_physical_cpu();
time = gator_get_time();
if (buffer_check_space(cpu, COUNTER_BUF, 2 * MAXSIZE_PACK64 + 2 * MAXSIZE_PACK32)) {
gator_buffer_write_packed_int64(cpu, COUNTER_BUF, time);
gator_buffer_write_packed_int(cpu, COUNTER_BUF, core);
gator_buffer_write_packed_int(cpu, COUNTER_BUF, key);
gator_buffer_write_packed_int64(cpu, COUNTER_BUF, value);
}
local_irq_restore(flags);
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, COUNTER_BUF, time);
}
static void marshal_sched_trace_exit(int tgid, int pid)
{
unsigned long cpu = get_physical_cpu(), flags;
u64 time;
if (!per_cpu(gator_buffer, cpu)[SCHED_TRACE_BUF])
return;
local_irq_save(flags);
time = gator_get_time();
if (buffer_check_space(cpu, SCHED_TRACE_BUF, MAXSIZE_PACK64 + 2 * MAXSIZE_PACK32)) {
gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, MESSAGE_SCHED_EXIT);
gator_buffer_write_packed_int64(cpu, SCHED_TRACE_BUF, time);
gator_buffer_write_packed_int(cpu, SCHED_TRACE_BUF, pid);
}
local_irq_restore(flags);
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, SCHED_TRACE_BUF, time);
}
static void marshal_activity_switch(int core, int key, int activity, int pid, int state)
{
unsigned long cpu = get_physical_cpu(), flags;
u64 time;
if (!per_cpu(gator_buffer, cpu)[ACTIVITY_BUF])
return;
local_irq_save(flags);
time = gator_get_time();
if (buffer_check_space(cpu, ACTIVITY_BUF, MAXSIZE_PACK64 + 5 * MAXSIZE_PACK32)) {
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, MESSAGE_SWITCH);
gator_buffer_write_packed_int64(cpu, ACTIVITY_BUF, time);
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, core);
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, key);
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, activity);
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, pid);
gator_buffer_write_packed_int(cpu, ACTIVITY_BUF, state);
}
local_irq_restore(flags);
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, ACTIVITY_BUF, time);
}
void irextract_process (t_irextract *x, t_symbol *rec_buffer, t_atom_long num_channels, double sample_rate)
{
FFT_SETUP_D fft_setup;
FFT_SPLIT_COMPLEX_D spectrum_1;
FFT_SPLIT_COMPLEX_D spectrum_2;
FFT_SPLIT_COMPLEX_D spectrum_3;
void *excitation_sig;
double *out_mem;
float *rec_mem;
float *filter_in;
t_symbol *filter = filter_retriever(x->deconvolve_filter_specifier);
double filter_specifier[HIRT_MAX_SPECIFIER_ITEMS];
double range_specifier[HIRT_MAX_SPECIFIER_ITEMS];
double test_pow;
double max_pow;
double deconvolve_phase = phase_retriever(x->deconvolve_phase);
long deconvolve_mode = x->deconvolve_mode;
long bandlimit = x->measure_mode == SWEEP ? x->bandlimit : 0;
AH_SIntPtr rec_length = buffer_length(rec_buffer);
AH_SIntPtr gen_length = 0;
AH_SIntPtr filter_length = buffer_length(filter);
AH_SIntPtr out_length_samps;
AH_UIntPtr fft_size;
AH_UIntPtr fft_size_log2;
AH_UIntPtr i;
if (buffer_check((t_object *)x, rec_buffer) || !rec_length)
return;
switch (x->measure_mode)
{
case SWEEP:
gen_length = ess_get_length(&x->sweep_params);
break;
case MLS:
gen_length = mls_get_length(&x->max_length_params);
break;
case NOISE:
gen_length = coloured_noise_get_length(&x->noise_params);
break;
}
// Check and calculate lengths
fft_size = calculate_fft_size(rec_length + gen_length, &fft_size_log2);
if (rec_length % num_channels)
object_warn ((t_object *) x, "buffer length is not a multiple of the number of channels - number may be wrong");
if (((rec_length / num_channels) - gen_length) < 1)
{
object_error ((t_object *) x, "buffer is not long enough for generated signal");
return;
}
out_length_samps = ((rec_length / num_channels) - gen_length);
if (x->out_length)
{
if (out_length_samps < (x->out_length * sample_rate))
object_warn ((t_object *) x, "buffer is not long enough for requested output length");
else
out_length_samps = (AH_SIntPtr) (x->out_length * sample_rate);
}
// Allocate Temporary Memory
fft_setup = hisstools_create_setup_d(fft_size_log2);
excitation_sig = malloc(((gen_length > filter_length) ? gen_length : filter_length) * sizeof(double));
spectrum_1.realp = ALIGNED_MALLOC((sizeof(double) * fft_size * 4));
spectrum_1.imagp = spectrum_1.realp + (fft_size >> 1);
spectrum_2.realp = spectrum_1.imagp + (fft_size >> 1);
spectrum_2.imagp = spectrum_2.realp + (fft_size >> 1);
spectrum_3.realp = spectrum_2.imagp + (fft_size >> 1);
spectrum_3.imagp = spectrum_3.realp + fft_size;
rec_mem = (float *) malloc(rec_length * sizeof(float));
filter_in = filter_length ? ALIGNED_MALLOC(sizeof(float *) * filter_length) : 0;
if (!fft_setup || !excitation_sig || !spectrum_1.realp || (filter_length && !filter_in))
{
object_error ((t_object *) x, "could not allocate temporary memory for processing");
hisstools_destroy_setup_d(fft_setup);
free(excitation_sig);
ALIGNED_FREE(spectrum_1.realp);
ALIGNED_FREE(filter_in);
return;
}
x->fft_size = fft_size;
x->sample_rate = sample_rate;
x->out_length_samps = out_length_samps;
x->gen_length = gen_length;
// Allocate output memory and get record memory
out_mem = grow_mem_swap(&x->out_mem, fft_size * sizeof(double), fft_size);
if (!out_mem)
{
object_error ((t_object *) x, "could not allocate memory for output storage");
free(excitation_sig);
hisstools_destroy_setup_d(fft_setup);
return;
}
// Generate Signal
switch (x->measure_mode)
{
case SWEEP:
ess_gen(&x->sweep_params, excitation_sig, true);
break;
case MLS:
mls_gen(&x->max_length_params, excitation_sig, true);
break;
case NOISE:
coloured_noise_gen(&x->noise_params, excitation_sig, true);
break;
}
// Transform excitation signal into complex spectrum 2
time_to_halfspectrum_double(fft_setup, excitation_sig, gen_length, spectrum_2, fft_size);
if (bandlimit)
{
// Calculate standard filter for bandlimited deconvolution (sweep * inv sweep)
ess_igen(&x->sweep_params, excitation_sig, true, true);
time_to_halfspectrum_double(fft_setup, excitation_sig, gen_length, spectrum_3, fft_size);
convolve(spectrum_3, spectrum_2, fft_size, SPECTRUM_REAL);
// Calculate full power spectrum from half spectrum - convert filter to have the required phase
power_full_spectrum_from_half_spectrum(spectrum_3, fft_size);
variable_phase_from_power_spectrum(fft_setup, spectrum_3, fft_size, deconvolve_phase, true);
// Convert back to real format
spectrum_3.imagp[0] = spectrum_3.realp[fft_size >> 1];
}
else
{
// Find maximum power to scale
for (i = 1, max_pow = 0; i < (fft_size >> 1); i++)
static ssize_t annotate_write(struct file *file, char const __user *buf, size_t count_orig, loff_t *offset)
{
int pid, cpu, header_size, available, contiguous, length1, length2, size, count = count_orig & 0x7fffffff;
bool interrupt_context;
if (*offset)
return -EINVAL;
interrupt_context = in_interrupt();
/* Annotations are not supported in interrupt context, but may work
* if you comment out the the next four lines of code. By doing so,
* annotations in interrupt context can result in deadlocks and lost
* data.
*/
if (interrupt_context) {
pr_warning("gator: Annotations are not supported in interrupt context. Edit gator_annotate.c in the gator driver to enable annotations in interrupt context.\n");
return -EINVAL;
}
retry:
/* synchronize between cores and with collect_annotations */
spin_lock(&annotate_lock);
if (!collect_annotations) {
/* Not collecting annotations, tell the caller everything was written */
size = count_orig;
goto annotate_write_out;
}
/* Annotation only uses a single per-cpu buffer as the data must be in order to the engine */
cpu = 0;
if (current == NULL)
pid = 0;
else
pid = current->pid;
/* determine total size of the payload */
header_size = MAXSIZE_PACK32 * 3 + MAXSIZE_PACK64;
available = buffer_bytes_available(cpu, ANNOTATE_BUF) - header_size;
size = count < available ? count : available;
if (size <= 0) {
/* Buffer is full, wait until space is available */
spin_unlock(&annotate_lock);
/* Drop the annotation as blocking is not allowed in interrupt context */
if (interrupt_context)
return -EINVAL;
wait_event_interruptible(gator_annotate_wait, buffer_bytes_available(cpu, ANNOTATE_BUF) > header_size || !collect_annotations);
/* Check to see if a signal is pending */
if (signal_pending(current))
return -EINTR;
goto retry;
}
/* synchronize shared variables annotateBuf and annotatePos */
if (per_cpu(gator_buffer, cpu)[ANNOTATE_BUF]) {
u64 time = gator_get_time();
gator_buffer_write_packed_int(cpu, ANNOTATE_BUF, get_physical_cpu());
gator_buffer_write_packed_int(cpu, ANNOTATE_BUF, pid);
gator_buffer_write_packed_int64(cpu, ANNOTATE_BUF, time);
gator_buffer_write_packed_int(cpu, ANNOTATE_BUF, size);
/* determine the sizes to capture, length1 + length2 will equal size */
contiguous = contiguous_space_available(cpu, ANNOTATE_BUF);
if (size < contiguous) {
length1 = size;
length2 = 0;
} else {
length1 = contiguous;
length2 = size - contiguous;
}
if (annotate_copy(file, buf, length1) != 0) {
size = -EINVAL;
goto annotate_write_out;
}
if (length2 > 0 && annotate_copy(file, &buf[length1], length2) != 0) {
size = -EINVAL;
goto annotate_write_out;
}
/* Check and commit; commit is set to occur once buffer is 3/4 full */
buffer_check(cpu, ANNOTATE_BUF, time);
}
annotate_write_out:
spin_unlock(&annotate_lock);
/* return the number of bytes written */
return size;
}
void bufconvolve_process_internal (t_bufconvolve *x, t_symbol *sym, short argc, t_atom *argv)
{
FFT_SETUP_D fft_setup;
FFT_SPLIT_COMPLEX_D spectrum_1;
FFT_SPLIT_COMPLEX_D spectrum_2;
FFT_SPLIT_COMPLEX_D spectrum_3;
double *out_buf;
float *in_temp;
float *filter_in;
AH_Boolean convolve_mode = sym == gensym("convolve") ? true : false;
t_symbol *target = atom_getsym(argv++);
t_symbol *source_1 = atom_getsym(argv++);
t_symbol *source_2 = atom_getsym(argv++);
t_symbol *filter = filter_retriever(x->deconvolve_filter_specifier);
double filter_specifier[HIRT_MAX_SPECIFIER_ITEMS];
double range_specifier[HIRT_MAX_SPECIFIER_ITEMS];
double time_mul = atom_getfloat(argv++);
double sample_rate = buffer_sample_rate(source_1);
double deconvolve_phase = phase_retriever(x->deconvolve_phase);
double deconvolve_delay;
AH_SIntPtr source_length_1 = buffer_length(source_1);
AH_SIntPtr source_length_2 = buffer_length(source_2);
AH_SIntPtr filter_length = buffer_length(filter);
AH_UIntPtr fft_size;
AH_UIntPtr fft_size_log2;
long deconvolve_mode = x->deconvolve_mode;
t_buffer_write_error error;
// Check input buffers
if (buffer_check((t_object *) x, source_1) || buffer_check((t_object *) x, source_2))
return;
// Check sample rates
if (sample_rate != buffer_sample_rate(source_2))
object_warn((t_object *) x, "sample rates do not match");
// Check and calculate lengths
if (convolve_mode == true)
fft_size = (AH_UIntPtr) ((source_length_1 + source_length_2) * time_mul);
else
fft_size = (AH_UIntPtr) (source_length_1 < source_length_2 ? source_length_2 * time_mul : source_length_1 * time_mul);
fft_size = calculate_fft_size(fft_size, &fft_size_log2);
deconvolve_delay = delay_retriever(x->deconvolve_delay, fft_size, sample_rate);
if (fft_size < 8)
{
object_error((t_object *) x, "input buffers are too short, or have no length");
return;
}
// Allocate Memory (use pointer aliasing where possible for efficiency)
fft_setup = hisstools_create_setup_d(fft_size_log2);
spectrum_1.realp = ALIGNED_MALLOC(sizeof(double) * fft_size * (convolve_mode == true ? 3 : 4));
spectrum_1.imagp = spectrum_1.realp + (fft_size >> 1);
spectrum_2.realp = spectrum_1.imagp + (fft_size >> 1);
spectrum_2.imagp = spectrum_2.realp + (fft_size >> 1);
spectrum_3.realp = spectrum_2.imagp + (fft_size >> 1);
spectrum_3.imagp = convolve_mode == true ? 0 : spectrum_3.realp + fft_size;
filter_in = filter_length ? ALIGNED_MALLOC(sizeof(float *) * filter_length) : 0;
out_buf = spectrum_2.realp;
in_temp = (float *) spectrum_3.realp;
// Check memory allocations
if (!fft_setup || !spectrum_1.realp || (filter_length && !filter_in))
{
object_error((t_object *) x, "could not allocate temporary memory for processing");
hisstools_destroy_setup_d(fft_setup);
ALIGNED_FREE(spectrum_1.realp);
ALIGNED_FREE(filter_in);
return;
}
// Get inputs - convert to frequency domain
buffer_read(source_1, x->read_chan - 1, in_temp, source_length_1);
time_to_halfspectrum_float(fft_setup, in_temp, source_length_1, spectrum_1, fft_size);
buffer_read(source_2, x->read_chan - 1, in_temp, source_length_2);
time_to_halfspectrum_float(fft_setup, in_temp, source_length_2, spectrum_2, fft_size);
// Do deconvolution or convolution
if (convolve_mode == true)
convolve(spectrum_1, spectrum_2, fft_size, SPECTRUM_REAL);
else
{
// Fill deconvolution filter specifiers - load filter from buffer (if specified) - deconvolve
fill_power_array_specifier(filter_specifier, x->deconvolve_filter_specifier, x->deconvolve_num_filter_specifiers);
fill_power_array_specifier(range_specifier, x->deconvolve_range_specifier, x->deconvolve_num_range_specifiers);
buffer_read(filter, 0, filter_in, fft_size);
deconvolve(fft_setup, spectrum_1, spectrum_2, spectrum_3, filter_specifier, range_specifier, 0.0, filter_in, filter_length, fft_size, SPECTRUM_REAL, deconvolve_mode, deconvolve_phase, deconvolve_delay, sample_rate);
}
// Convert to time domain - copy out to buffer
spectrum_to_time(fft_setup, out_buf, spectrum_1, fft_size, SPECTRUM_REAL);
error = buffer_write(target, out_buf, (convolve_mode == true ? source_length_1 + source_length_2 - 1 : fft_size), x->write_chan - 1, x->resize, sample_rate, 1.);
buffer_write_error((t_object *) x, target, error);
// Free resources
hisstools_destroy_setup_d(fft_setup);
ALIGNED_FREE(spectrum_1.realp);
ALIGNED_FREE(filter_in);
if (!error)
outlet_bang(x->process_done);
}
void ircropfade_process_internal(t_ircropfade *x, t_symbol *sym, short argc, t_atom *argv)
{
// Load arguments
t_symbol *target = atom_getsym(argv++);
t_symbol *source = atom_getsym(argv++);
t_atom_long crop1 = atom_getlong(argv++);
t_atom_long crop2 = atom_getlong(argv++);
double fade_start = atom_getfloat(argv++);
double in_length = atom_getfloat(argv++);
double fade_end = atom_getfloat(argv++);
double out_length = atom_getfloat(argv++);
// Set fade variables
double fade_in_lo = fade_start - 1;
double fade_in_hi = in_length > 0 ? fade_start + in_length : fade_start;
double fade_out_lo = fade_end;
double fade_out_hi = out_length > 0 ? fade_end - out_length : fade_end - 1;
double fade_in_recip = 1. / (fade_in_hi - fade_in_lo);
double fade_out_recip = 1. / (fade_out_hi - fade_out_lo);
float *temp1;
double *temp2;
t_buffer_write_error error;
AH_SIntPtr full_length = buffer_length(source);
AH_SIntPtr final_length;
AH_SIntPtr i;
t_atom_long read_chan = x->read_chan - 1;
double sample_rate = 0;
// Check source buffer
if (buffer_check((t_object *) x, source, read_chan))
return;
sample_rate = buffer_sample_rate(source);
crop1 = crop1 < 0 ? 0 : crop1;
crop2 = crop2 < 0 ? 0 : crop2;
crop1 = crop1 > full_length - 1 ? full_length - 1: crop1;
crop2 = crop2 > full_length ? full_length : crop2;
if (crop1 >= crop2)
return;
final_length = crop2 - crop1;
// Allocate Memory
temp1 = (float *) ALIGNED_MALLOC(full_length * sizeof(float) + final_length * sizeof(double));
temp2 = (double *) (temp1 + full_length);
// Check momory allocation
if (!temp1)
{
object_error((t_object *)x, "could not allocate temporary memory for processing");
free(temp1);
return;
}
// Read from buffer
buffer_read(source, read_chan, (float *) temp1, full_length);
// Copy with crops / fades to double precision version
for (i = 0; i < final_length; i++)
{
double in_val = temp1[i + crop1];
double fade_in = calculate_fade((double) (i + crop1), fade_in_lo, fade_in_recip);
double fade_out = calculate_fade((double) (i + crop1), fade_out_lo, fade_out_recip);
temp2[i] = in_val * fade_in * fade_out;
}
// Copy out to buffer
error = buffer_write(target, temp2, final_length, x->write_chan - 1, x->resize, sample_rate, 1.);
buffer_write_error((t_object *)x, target, error);
// Free Resources
ALIGNED_FREE(temp1);
if (!error)
outlet_bang(x->process_done);
}
void irphase_process_internal (t_irphase *x, t_symbol *sym, short argc, t_atom *argv)
{
FFT_SETUP_D fft_setup;
FFT_SPLIT_COMPLEX_D spectrum_1;
FFT_SPLIT_COMPLEX_D spectrum_2;
FFT_SPLIT_COMPLEX_D spectrum_3;
float *in;
float *filter_in;
double *out_buf;
t_symbol *filter = filter_retriever(x->deconvolve_filter_specifier);
t_symbol *target = atom_getsym(argv++);
t_symbol *source = atom_getsym(argv++);
double filter_specifier[HIRT_MAX_SPECIFIER_ITEMS];
double range_specifier[HIRT_MAX_SPECIFIER_ITEMS];
double phase = atom_getfloat(argv++);
double time_mul = atom_getfloat(argv++);
double sample_rate = buffer_sample_rate(source);
double deconvolve_delay;
double deconvolve_phase;
t_phase_type mode = (t_phase_type) atom_getlong(argv++);
AH_UIntPtr fft_size;
AH_UIntPtr fft_size_log2;
AH_UIntPtr i;
t_buffer_write_error error;
long deconvolve_mode;
// Get input buffer lengths
AH_SIntPtr source_length_1 = buffer_length(source);
AH_SIntPtr filter_length = buffer_length(filter);
AH_SIntPtr max_length = source_length_1;
// Check input buffers
if (buffer_check((t_object *) x, source))
return;
// Calculate fft size
time_mul = time_mul == 0. ? 1 : time_mul;
if (time_mul < 1)
{
object_warn((t_object *) x, " time multiplier cannot be less than 1 (using 1)");
time_mul = 1;
}
fft_size = calculate_fft_size((long) (max_length * time_mul), &fft_size_log2);
if (fft_size < 8)
{
object_error((t_object *) x, "buffers are too short, or have no length");
return;
}
deconvolve_mode = x->deconvolve_mode;
deconvolve_phase = phase_retriever(x->deconvolve_phase);
deconvolve_delay = delay_retriever(x->deconvolve_delay, fft_size, sample_rate);
// Allocate momory
fft_setup = hisstools_create_setup_d(fft_size_log2);
spectrum_1.realp = ALIGNED_MALLOC(sizeof(double) * fft_size * (mode == MODE_ALLPASS ? 6 : 3));
spectrum_1.imagp = spectrum_1.realp + fft_size;
spectrum_2.realp = spectrum_1.imagp + fft_size;
spectrum_2.imagp = mode == MODE_ALLPASS ? spectrum_2.realp + fft_size : 0;
spectrum_3.realp = mode == MODE_ALLPASS ? spectrum_2.imagp + fft_size : 0;
spectrum_3.imagp = mode == MODE_ALLPASS ? spectrum_3.realp + fft_size : 0;
filter_in = filter_length ? ALIGNED_MALLOC(sizeof(float *) * filter_length) : 0;
out_buf = mode == MODE_ALLPASS ? spectrum_3.realp : spectrum_2.realp;
in = (float *) out_buf;
if (!spectrum_1.realp || !fft_setup || (filter_length && !filter_in))
{
object_error((t_object *) x, "could not allocate temporary memory for processing");
hisstools_destroy_setup_d(fft_setup);
ALIGNED_FREE(spectrum_1.realp);
ALIGNED_FREE(filter_in);
return;
}
// Get input - convert to frequency domain - get power spectrum - convert phase
buffer_read(source, x->read_chan - 1, in, fft_size);
time_to_spectrum_float(fft_setup, in, source_length_1, spectrum_1, fft_size);
power_spectrum(spectrum_1, fft_size, SPECTRUM_FULL);
variable_phase_from_power_spectrum(fft_setup, spectrum_1, fft_size, phase, false);
if (mode == MODE_ALLPASS)
{
// Copy minimum phase spectrum to spectrum_2
for (i = 0; i < fft_size; i++)
{
spectrum_2.realp[i] = spectrum_1.realp[i];
spectrum_2.imagp[i] = spectrum_1.imagp[i];
}
// Get input again
time_to_spectrum_float(fft_setup, in, source_length_1, spectrum_1, fft_size);
// Fill deconvolution filter specifiers - read filter from buffer (if specified) - deconvolve input by minimum phase spectrum
fill_power_array_specifier(filter_specifier, x->deconvolve_filter_specifier, x->deconvolve_num_filter_specifiers);
fill_power_array_specifier(range_specifier, x->deconvolve_range_specifier, x->deconvolve_num_range_specifiers);
buffer_read(filter, 0, filter_in, fft_size);
deconvolve(fft_setup, spectrum_1, spectrum_2, spectrum_3, filter_specifier, range_specifier, 0, filter_in, filter_length, fft_size, SPECTRUM_FULL, deconvolve_mode, deconvolve_phase, deconvolve_delay, sample_rate);
}
// Convert to time domain - copy out to buffer
spectrum_to_time(fft_setup, out_buf, spectrum_1, fft_size, SPECTRUM_FULL);
error = buffer_write(target, out_buf, fft_size, x->write_chan - 1, x->resize, sample_rate, 1);
buffer_write_error((t_object *) x, target, error);
// Free memory
hisstools_destroy_setup_d(fft_setup);
ALIGNED_FREE(spectrum_1.realp);
ALIGNED_FREE(filter_in);
if (!error)
outlet_bang(x->process_done);
}
/*
* Convert a mailbox name to the modified UTF-7 encoding, according to RFC 3501
* Section 5.1.3.
*/
const char *
apply_conversion(const char *mbox)
{
iconv_t cd;
char *inbuf, *outbuf;
size_t inlen, outlen;
char *c, *shift;
unsigned char *r, *w;
buffer_check(&nbuf, strlen(mbox));
buffer_reset(&nbuf);
xstrncpy(nbuf.data, mbox, nbuf.size);
nbuf.len = strlen(nbuf.data);
buffer_check(&cbuf, nbuf.len * 5);
buffer_reset(&cbuf);
r = (unsigned char *)nbuf.data;
w = (unsigned char *)cbuf.data;
inbuf = outbuf = NULL;
inlen = outlen = 0;
while (*r != '\0') {
/* Skip non-printable ASCII characters. */
if (*r < 0x20 || *r == 0x7F) {
r++;
continue;
}
/* Escape shift character for modified UTF-7. */
if (*r == '&') {
*w++ = '&';
*w++ = '-';
r++;
continue;
}
/* Copy ASCII printable characters. */
if (*r >= 0x20 && *r <= 0x7E) {
*w++ = *r++;
continue;
}
/* UTF-8 sequence will follow. */
if (inbuf == NULL) {
inbuf = (char *)r;
inlen = 0;
}
if ((*r & 0xE0) == 0xC0) { /* Two byte UTF-8. */
inlen += 2;
r += 2;
} else if ((*r & 0xF0) == 0xE0) { /* Three byte UTF-8. */
inlen += 3;
r += 3;
} else if ((*r & 0xF8) == 0xF0) { /* Four byte UTF-8. */
inlen += 4;
r += 4;
}
/* UTF-8 sequence has ended, convert it to UTF-7. */
if (inbuf != NULL && (*r <= 0x7F || *r == '\0')) {
outbuf = (char *)w;
outlen = cbuf.size - (outbuf - cbuf.data);
cd = iconv_open("UTF-7", "");
if (cd == (iconv_t)-1) {
error("converting mailbox name; %s\n",
strerror(errno));
return mbox;
}
while (inlen > 0) {
if (iconv(cd, &inbuf, &inlen, &outbuf, &outlen)
== -1) {
if (errno == E2BIG) {
buffer_check(&cbuf, cbuf.size *
2);
break;
} else {
error("converting mailbox name;"
"%s\n", strerror(errno));
return mbox;
}
} else {
iconv(cd, NULL, NULL, &outbuf, &outlen);
}
}
iconv_close(cd);
w = (unsigned char *)outbuf;
inbuf = outbuf = NULL;
inlen = outlen = 0;
}
}
if (*w != '\0')
*w = '\0';
/* Convert UTF-7 sequences to IMAP modified UTF-7. */
for (c = cbuf.data, shift = NULL; *c != '\0'; c++)
switch (*c) {
case '+':
*c = '&';
shift = c;
break;
case '-':
shift = NULL;
break;
case '/':
if (shift != NULL)
*c = ',';
break;
}
if (shift != NULL) {
*w++ = '-';
*w = '\0';
}
debug("conversion: '%s' -> '%s'\n", nbuf.data, cbuf.data);
return cbuf.data;
}
short buffer_multiple_names(t_object *x, t_symbol **in_bufs, t_symbol **out_bufs, AH_SIntPtr *lengths, short argc, t_atom *argv, t_atom_long read_chan, t_atom_long write_chan, long in_place, short max_bufs, AH_SIntPtr *overall_len_ret, AH_SIntPtr *max_len_ret, double *sample_rate_ret)
{
AH_SIntPtr overall_length = 0;
AH_SIntPtr max_length = 0;
AH_SIntPtr new_length;
short i;
double sample_rate = 0.0;
double new_sample_rate;
if (!in_place)
{
if (argc % 2)
{
object_error((t_object *) x, "target buffer with no matching input buffer");
return 0;
}
argc /= 2;
}
if (argc > max_bufs)
argc = max_bufs;
if (!argc)
{
object_error(x, "no buffers specified");
return 0;
}
for (i = 0; i < argc; i++)
{
if (atom_gettype(argv + i) != A_SYM)
{
object_error(x, "name of buffer expected, but number given");
return 0;
}
if (buffer_check(x, atom_getsym(argv + i), write_chan))
return 0;
if (in_place)
{
new_length = buffer_length (atom_getsym(argv + i));
new_sample_rate = buffer_sample_rate(atom_getsym(argv + i));
if (buffer_check(x, atom_getsym(argv + i), read_chan))
return 0;
}
else
{
new_length = buffer_length (atom_getsym(argv + i + argc));
new_sample_rate = buffer_sample_rate(atom_getsym(argv + i + argc));
if (buffer_check(x, atom_getsym(argv + i + argc), read_chan))
return 0;
}
if (new_length == 0)
{
object_error(x, "buffer %s has zero length ", atom_getsym(argv + i)->s_name);
return 0;
}
// Store name and length
out_bufs[i] = atom_getsym(argv + i);
lengths[i] = new_length;
if (in_place)
in_bufs[i] = atom_getsym(argv + i);
else
in_bufs[i] = atom_getsym(argv + i + argc);
if (new_length > max_length)
max_length = new_length;
overall_length += new_length;
// Check sample rates
if ((sample_rate != 0.0 && sample_rate != new_sample_rate) || new_sample_rate == 0.0)
object_warn(x, "sample rates do not match for all source buffers");
else
sample_rate = new_sample_rate;
}
*overall_len_ret = overall_length;
*max_len_ret = max_length;
*sample_rate_ret = sample_rate;
return argc;
}
/*
* Convert a mailbox name from the modified UTF-7 encoding, according to RFC
* 3501 Section 5.1.3.
*/
const char *
reverse_conversion(const char *mbox)
{
iconv_t cd;
char *inbuf, *outbuf;
size_t inlen, outlen;
char *c, *shift;
buffer_check(&cbuf, strlen(mbox));
buffer_reset(&cbuf);
xstrncpy(cbuf.data, mbox, cbuf.size);
/* Convert IMAP modified UTF-7 sequences to UTF-7. */
for (c = cbuf.data, shift = NULL; *c != '\0'; c++)
switch (*c) {
case '&':
*c = '+';
shift = c;
break;
case '-':
shift = NULL;
break;
case ',':
if (shift != NULL)
*c = '/';
break;
}
do {
inbuf = cbuf.data;
inlen = strlen(cbuf.data);
buffer_check(&nbuf, inlen);
buffer_reset(&nbuf);
outbuf = nbuf.data;
outlen = nbuf.size;
cd = iconv_open("", "UTF-7");
if (cd == (iconv_t)-1) {
error("converting mailbox name; %s\n", strerror(errno));
return mbox;
}
while (inlen > 0) {
if (iconv(cd, &inbuf, &inlen, &outbuf, &outlen) == -1) {
if (errno == E2BIG) {
buffer_check(&nbuf, nbuf.size * 2);
break;
} else {
error("converting mailbox name; %s\n",
strerror(errno));
return mbox;
}
} else {
iconv(cd, NULL, NULL, &outbuf, &outlen);
}
}
iconv_close(cd);
} while (inlen > 0);
*outbuf = '\0';
for (c = nbuf.data; (c = strchr(c,'+')) != NULL; *c = '&');
/* Convert UTF-7 sequences to IMAP modified UTF-7. */
for (c = cbuf.data, shift = NULL; *c != '\0'; c++)
switch (*c) {
case '+':
*c = '&';
shift = c;
break;
case '-':
shift = NULL;
break;
case '/':
if (shift != NULL)
*c = ',';
break;
}
debug("conversion: '%s' <- '%s'\n", nbuf.data, cbuf.data);
return nbuf.data;
}