static ssize_t qio_channel_websock_write_wire(QIOChannelWebsock *ioc,
Error **errp)
{
ssize_t ret;
ssize_t done = 0;
qio_channel_websock_encode(ioc);
while (ioc->encoutput.offset > 0) {
ret = qio_channel_write(ioc->master,
(char *)ioc->encoutput.buffer,
ioc->encoutput.offset,
errp);
if (ret < 0) {
if (ret == QIO_CHANNEL_ERR_BLOCK &&
done > 0) {
return done;
} else {
return ret;
}
}
buffer_advance(&ioc->encoutput, ret);
done += ret;
}
return done;
}
static gboolean qio_channel_websock_handshake_send(QIOChannel *ioc,
GIOCondition condition,
gpointer user_data)
{
QIOTask *task = user_data;
QIOChannelWebsock *wioc = QIO_CHANNEL_WEBSOCK(
qio_task_get_source(task));
Error *err = NULL;
ssize_t ret;
ret = qio_channel_write(wioc->master,
(char *)wioc->encoutput.buffer,
wioc->encoutput.offset,
&err);
if (ret < 0) {
trace_qio_channel_websock_handshake_fail(ioc);
qio_task_abort(task, err);
error_free(err);
return FALSE;
}
buffer_advance(&wioc->encoutput, ret);
if (wioc->encoutput.offset == 0) {
trace_qio_channel_websock_handshake_complete(ioc);
qio_task_complete(task);
return FALSE;
}
trace_qio_channel_websock_handshake_pending(ioc, G_IO_OUT);
return TRUE;
}
static gboolean tcp_chr_telnet_init_io(QIOChannel *ioc,
GIOCondition cond G_GNUC_UNUSED,
gpointer user_data)
{
TCPChardevTelnetInit *init = user_data;
ssize_t ret;
ret = qio_channel_write(ioc, init->buf, init->buflen, NULL);
if (ret < 0) {
if (ret == QIO_CHANNEL_ERR_BLOCK) {
ret = 0;
} else {
tcp_chr_disconnect(init->chr);
return FALSE;
}
}
init->buflen -= ret;
if (init->buflen == 0) {
tcp_chr_connect(init->chr);
return FALSE;
}
memmove(init->buf, init->buf + ret, init->buflen);
return TRUE;
}
/* Called with chr_write_lock held. */
static int udp_chr_write(Chardev *chr, const uint8_t *buf, int len)
{
UdpChardev *s = UDP_CHARDEV(chr);
return qio_channel_write(
s->ioc, (const char *)buf, len, NULL);
}
static ssize_t qio_channel_tls_write_handler(const char *buf,
size_t len,
void *opaque)
{
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(opaque);
ssize_t ret;
ret = qio_channel_write(tioc->master, buf, len, NULL);
if (ret == QIO_CHANNEL_ERR_BLOCK) {
errno = EAGAIN;
return -1;
} else if (ret < 0) {
errno = EIO;
return -1;
}
return ret;
}
// unbounded_channels <= 0 means no, > 0 means yes
// -1 means advance.
void check_channel(char threadsafe, qio_chtype_t type, int64_t start, int64_t len, int64_t chunksz, qio_hint_t file_hints, qio_hint_t ch_hints, char unbounded_channels, char reopen)
{
qio_file_t* f;
qio_channel_t* writing;
qio_channel_t* reading;
int64_t offset;
int64_t usesz;
int64_t end = start + len;
int err;
unsigned char* chunk;
unsigned char* got_chunk;
int64_t k;
ssize_t amt_written;
ssize_t amt_read;
char* chhints;
char* fhints;
FILE* writefp = NULL;
FILE* readfp = NULL;
int memory;
int64_t ch_end = end;
char filename[128];
int fd = -1;
strcpy(filename,"/tmp/qio_testXXXXXX");
if( unbounded_channels > 0 ) ch_end = INT64_MAX;
ch_hints = (ch_hints & ~ QIO_CHTYPEMASK) | type;
memory = 0;
if( (file_hints & QIO_METHODMASK) == QIO_METHOD_MEMORY ||
(ch_hints & QIO_METHODMASK) == QIO_METHOD_MEMORY ) {
memory = 1;
}
if( memory ) {
file_hints = (file_hints & ~ QIO_METHODMASK ) | QIO_METHOD_MEMORY;
ch_hints = (ch_hints & ~ QIO_METHODMASK ) | QIO_METHOD_MEMORY;
}
if( memory && type == QIO_CH_ALWAYS_UNBUFFERED ) return;
if( memory && reopen ) return;
if( (ch_hints & QIO_METHODMASK) == QIO_METHOD_FREADFWRITE ) {
if( (file_hints & QIO_METHODMASK) != QIO_METHOD_FREADFWRITE ) return;
}
if( (ch_hints & QIO_METHODMASK) == QIO_METHOD_MMAP ) {
if( (file_hints & QIO_METHODMASK) != QIO_METHOD_MMAP ) return;
}
fhints = qio_hints_to_string(file_hints);
chhints = qio_hints_to_string(ch_hints);
printf("check_channel(threadsafe=%i, type=%i, start=%lli, len=%lli, chunksz=%lli, file_hints=%s, ch_hints=%s, unbounded=%i, reopen=%i)\n",
(int) threadsafe,
(int) type,
(long long int) start,
(long long int) len,
(long long int) chunksz,
fhints,
chhints,
(int) unbounded_channels,
(int) reopen );
free(fhints);
free(chhints);
chunk = malloc(chunksz);
got_chunk = malloc(chunksz);
assert(chunk);
assert(got_chunk);
if( memory ) {
err = qio_file_open_mem_ext(&f, NULL, QIO_FDFLAG_READABLE|QIO_FDFLAG_WRITEABLE|QIO_FDFLAG_SEEKABLE, file_hints, NULL);
assert(!err);
} else {
// Open a temporary file.
if( reopen ) {
fd = mkstemp(filename);
close(fd);
err = qio_file_open_access(&f, filename, "w", file_hints, NULL);
assert(!err);
} else {
err = qio_file_open_tmp(&f, file_hints, NULL);
assert(!err);
}
// Rewind the file
if (f->fp ) {
int got;
got = fseek(f->fp, start, SEEK_SET);
assert( got == 0 );
} else {
off_t off;
err = sys_lseek(f->fd, start, SEEK_SET, &off);
assert(!err);
}
}
// Create a "write to file" channel.
err = qio_channel_create(&writing, f, ch_hints, 0, 1, start, ch_end, NULL);
assert(!err);
// Write stuff to the file.
for( offset = start; offset < end; offset += usesz ) {
usesz = chunksz;
if( offset + usesz > end ) usesz = end - offset;
// Fill chunk.
fill_testdata(offset, usesz, chunk);
// Write chunk.
if( writefp ) {
amt_written = fwrite(chunk, 1, usesz, writefp);
} else {
err = qio_channel_write(threadsafe, writing, chunk, usesz, &amt_written);
assert(!err);
}
assert(amt_written == usesz);
}
// Attempt to write 1 more byte; we should get EEOF
// if we've restricted the range of the channel.
// Write chunk.
if( unbounded_channels > 0) {
// do nothing
} else {
if( writefp ) {
int got;
got = fflush(writefp);
assert(got == 0);
amt_written = fwrite(chunk, 1, 1, writefp);
// fwrite might buffer on its own.
if( amt_written != 0 ) {
got = fflush(writefp);
assert(got == EOF);
}
assert(errno == EEOF);
} else {
if( unbounded_channels < 0 ) {
int times = -unbounded_channels;
for( int z = 0; z < times; z++ ) {
err = qio_channel_advance(threadsafe, writing, 1);
assert( !err );
}
}
err = qio_channel_write(threadsafe, writing, chunk, 1, &amt_written);
assert(amt_written == 0);
assert( err == EEOF );
}
}
qio_channel_release(writing);
// Reopen the file if we're doing reopen
if( reopen ) {
// Close the file.
qio_file_release(f);
err = qio_file_open_access(&f, filename, "r", file_hints, NULL);
assert(!err);
}
// Check that the file is the right length.
if( !memory ) {
struct stat stats;
err = sys_fstat(f->fd, &stats);
assert(!err);
assert(stats.st_size == end);
}
// That was fun. Now start at the beginning of the file
// and read the data.
// Rewind the file
if( !memory ) {
off_t off;
sys_lseek(f->fd, start, SEEK_SET, &off);
assert(!err);
}
// Read the data.
//err = qio_channel_init_file(&reading, type, f, ch_hints, 1, 0, start, end);
err = qio_channel_create(&reading, f, ch_hints, 1, 0, start, ch_end, NULL);
assert(!err);
// Read stuff from the file.
for( offset = start; offset < end; offset += usesz ) {
usesz = chunksz;
if( offset + usesz > end ) usesz = end - offset;
// Fill chunk.
fill_testdata(offset, usesz, chunk);
memset(got_chunk, 0xff, usesz);
// Read chunk.
if( readfp ) {
amt_read = fread(got_chunk, 1, usesz, readfp);
} else {
err = qio_channel_read(threadsafe, reading, got_chunk, usesz, &amt_read);
assert( err == EEOF || err == 0);
}
assert(amt_read == usesz);
// Compare chunk.
for( k = 0; k < usesz; k++ ) {
assert(got_chunk[k] == chunk[k]);
}
}
if( readfp ) {
amt_read = fread(got_chunk, 1, 1, readfp);
assert( amt_read == 0 );
assert( feof(readfp) );
} else {
if( unbounded_channels < 0 ) {
int times = -unbounded_channels;
for( int z = 0; z < times; z++ ) {
err = qio_channel_advance(threadsafe, reading, 1);
assert( !err );
}
err = qio_channel_advance(threadsafe, reading, -unbounded_channels);
assert( !err );
}
err = qio_channel_read(threadsafe, reading, got_chunk, 1, &amt_read);
assert( err == EEOF );
}
qio_channel_release(reading);
//err = qio_channel_destroy(&reading);
// Close the file.
qio_file_release(f);
if( reopen ) {
unlink(filename);
}
free(chunk);
free(got_chunk);
}