/* <string> <index> <int> put - */
static int
zput(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
os_ptr op1 = op - 1;
os_ptr op2 = op1 - 1;
byte *sdata;
uint ssize;
switch (r_type(op2)) {
case t_dictionary:
if (i_ctx_p->in_superexec == 0)
check_dict_write(*op2);
{
int code = idict_put(op2, op1, op);
if (code < 0)
return code; /* error */
}
break;
case t_array:
check_write(*op2);
check_int_ltu(*op1, r_size(op2));
store_check_dest(op2, op);
{
ref *eltp = op2->value.refs + (uint) op1->value.intval;
ref_assign_old(op2, eltp, op, "put");
}
break;
case t_mixedarray: /* packed arrays are read-only */
case t_shortarray:
return_error(e_invalidaccess);
case t_string:
sdata = op2->value.bytes;
ssize = r_size(op2);
str: check_write(*op2);
check_int_ltu(*op1, ssize);
check_int_leu(*op, 0xff);
sdata[(uint)op1->value.intval] = (byte)op->value.intval;
break;
case t_astruct:
if (gs_object_type(imemory, op2->value.pstruct) != &st_bytes)
return_error(e_typecheck);
sdata = r_ptr(op2, byte);
ssize = gs_object_size(imemory, op2->value.pstruct);
goto str;
default:
return_op_typecheck(op2);
}
pop(3);
return 0;
}
void LLVOCache::writeCacheHeader()
{
if (!mEnabled)
{
llwarns << "Not writing cache header: Cache is currently disabled." << llendl;
return;
}
if(mReadOnly)
{
llwarns << "Not writing cache header: Cache is currently in read-only mode." << llendl;
return;
}
bool success = true ;
{
LLAPRFile apr_file(mHeaderFileName, APR_CREATE|APR_WRITE|APR_BINARY, mLocalAPRFilePoolp);
//write the meta element
success = check_write(&apr_file, &mMetaInfo, sizeof(HeaderMetaInfo)) ;
mNumEntries = 0 ;
for(header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin() ; success && iter != mHeaderEntryQueue.end(); ++iter)
{
(*iter)->mIndex = mNumEntries++ ;
success = check_write(&apr_file, (void*)*iter, sizeof(HeaderEntryInfo));
}
mNumEntries = mHeaderEntryQueue.size() ;
if(success && mNumEntries < MAX_NUM_OBJECT_ENTRIES)
{
HeaderEntryInfo* entry = new HeaderEntryInfo() ;
entry->mTime = INVALID_TIME ;
for(S32 i = mNumEntries ; success && i < MAX_NUM_OBJECT_ENTRIES ; i++)
{
//fill the cache with the default entry.
success = check_write(&apr_file, entry, sizeof(HeaderEntryInfo)) ;
}
delete entry ;
}
}
if(!success)
{
clearCacheInMemory() ;
mReadOnly = TRUE ; //disable the cache.
}
return ;
}
/* <bytestring1> <index> <string2> putinterval - */
static int
zputinterval(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
os_ptr opindex = op - 1;
os_ptr opto = opindex - 1;
int code;
switch (r_type(opto)) {
default:
return_error(e_typecheck);
case t__invalid:
if (r_type(op) != t_array && r_type(op) != t_string && r_type(op) != t__invalid)
return_error(e_typecheck); /* to match Distiller */
else
return_error(e_stackunderflow);
case t_mixedarray:
case t_shortarray:
return_error(e_invalidaccess);
case t_array:
case t_string:
check_write(*opto);
check_int_leu(*opindex, r_size(opto));
code = copy_interval(i_ctx_p, opto, (uint)(opindex->value.intval),
op, "putinterval");
break;
case t_astruct: {
uint dsize, ssize, index;
check_write(*opto);
if (gs_object_type(imemory, opto->value.pstruct) != &st_bytes)
return_error(e_typecheck);
dsize = gs_object_size(imemory, opto->value.pstruct);
check_int_leu(*opindex, dsize);
index = (uint)opindex->value.intval;
check_read_type(*op, t_string);
ssize = r_size(op);
if (ssize > dsize - index)
return_error(e_rangecheck);
memcpy(r_ptr(opto, byte) + index, op->value.const_bytes, ssize);
code = 0;
break;
}
}
if (code >= 0)
pop(3);
return code;
}
static void read_cb(struct ev_loop *loop, struct ev_io *w, int revents)
{
struct client *cli = (struct client *)w;
int n = 0;
char rbuff[5];
assert(revents == EV_READ);
for (;;) {
n = check_read(cli->fd, rbuff, sizeof(rbuff));
if (n <= 0) {
break;
} else {
// echo
int s_n = check_write(cli->fd, rbuff, n);
if (s_n < n) {
printf("send buffer full\n");
break;
}
if (s_n < 0) {
// something err
break;
}
}
//sleep(1);
}
printf("ECHO OVER\n");
ev_io_stop(EV_A_ w);
close(cli->fd);
free(cli);
}
/* <gstate> currentgstate <gstate> */
int
zcurrentgstate(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
gs_state *pgs;
int_gstate *pistate;
int code;
gs_memory_t *mem;
check_stype(*op, st_igstate_obj);
check_write(*op);
code = gstate_unshare(i_ctx_p);
if (code < 0)
return code;
pgs = igstate_ptr(op);
pistate = gs_int_gstate(pgs);
code = gstate_check_space(i_ctx_p, istate, r_space(op));
if (code < 0)
return code;
#define gsref_save(p) ref_save(op, p, "currentgstate")
int_gstate_map_refs(pistate, gsref_save);
#undef gsref_save
mem = gs_state_swap_memory(pgs, imemory);
code = gs_currentgstate(pgs, igs);
gs_state_swap_memory(pgs, mem);
if (code < 0)
return code;
int_gstate_map_refs(pistate, ref_mark_new);
return 0;
}
TYPED_TEST_P(ChannelTest, write_Buffers) {
auto_Object<Buffer> test_buffer = Buffer::copy(this->get_test_string());
test_buffer->set_next_buffer(new Buffer(1));
check_write(this->get_write_channel().write(*test_buffer));
this->read();
}
BOOL LLVOCache::updateEntry(const HeaderEntryInfo* entry)
{
LLAPRFile apr_file(mHeaderFileName, APR_WRITE|APR_BINARY, mLocalAPRFilePoolp);
apr_file.seek(APR_SET, entry->mIndex * sizeof(HeaderEntryInfo) + sizeof(HeaderMetaInfo)) ;
return check_write(&apr_file, (void*)entry, sizeof(HeaderEntryInfo)) ;
}
static int
push_execstack(i_ctx_t *i_ctx_p, os_ptr op1, bool include_marks,
op_proc_t cont)
{
uint size;
/*
* We can't do this directly, because the interpreter
* might have cached some state. To force the interpreter
* to update the stored state, we push a continuation on
* the exec stack; the continuation is executed immediately,
* and does the actual transfer.
*/
uint depth;
if (!r_is_array(op1))
return_op_typecheck(op1);
/* Check the length before the write access per CET 28-03 */
size = r_size(op1);
depth = count_exec_stack(i_ctx_p, include_marks);
if (depth > size)
return_error(e_rangecheck);
check_write(*op1);
{
int code = ref_stack_store_check(&e_stack, op1, size, 0);
if (code < 0)
return code;
}
check_estack(1);
r_set_size(op1, depth);
push_op_estack(cont);
return o_push_estack;
}
TYPED_TEST_P(ChannelTest, writev_one) {
iovec iov;
iov.iov_base = const_cast<char*>(this->get_test_string().data());
iov.iov_len = this->get_test_string().size();
check_write(this->get_write_channel().writev(&iov, 1));
this->read();
}
void write() {
check_write(
get_write_channel().write(
get_test_string().data(),
get_test_string().size()
)
);
}
Status LocalDBWriter::file_write(const uint64_t& key, const Slice& value) {
char* a = "xxxxxxxxxxxxxxxx";
// 为了内存对齐,一个内存页应该放多少个内存索引key,仅仅想计算一次
static uint64_t ssd_align_key = PAGESIZE / (sizeof(key_t) + sizeof(ssd_value_t));
static uint64_t mem_align_key = PAGESIZE / (sizeof(key_t) +
sizeof(mem_value_t)) * ssd_align_key;
if (_key_num != 0 && _key_num % mem_align_key == 0) {
// //printf("1_key%lu mem_align_key:%lu\n", key, mem_align_key);
check_write(_mem_index_fd, a,
PAGESIZE % (sizeof(key_t) + sizeof(mem_value_t)), _mem_file_off);
}
if (_key_num % ssd_align_key == 0) {
// 知道为0,省去
check_write(_mem_index_fd, &key, sizeof(key), _mem_file_off);
uint32_t ssd_page_num = _key_num / ssd_align_key;
check_write(_mem_index_fd, &ssd_page_num, sizeof(ssd_page_num), _mem_file_off);
}
check_write(_ssd_index_fd, &key, sizeof(key), _ssd_file_off);
check_write(_ssd_index_fd, &_data_file_off, sizeof(_data_file_off), _ssd_file_off);
// //printf("data off:%lu ssd off:%lu \n", _data_file_off, _ssd_file_off);
uint32_t value_len = value.size();
check_write(_data_file_fd, &value_len, sizeof(value_len), _data_file_off);
check_write(_data_file_fd, value.data(), value_len, _data_file_off);
// //printf("data off:%lu \n", _data_file_off);
return OK;
}
BOOL LLVOCacheEntry::writeToFile(LLAPRFile* apr_file) const
{
BOOL success;
success = check_write(apr_file, (void*)&mLocalID, sizeof(U32));
if(success)
{
success = check_write(apr_file, (void*)&mCRC, sizeof(U32));
}
if(success)
{
success = check_write(apr_file, (void*)&mHitCount, sizeof(S32));
}
if(success)
{
success = check_write(apr_file, (void*)&mDupeCount, sizeof(S32));
}
if(success)
{
success = check_write(apr_file, (void*)&mCRCChangeCount, sizeof(S32));
}
if(success)
{
S32 size = mDP.getBufferSize();
success = check_write(apr_file, (void*)&size, sizeof(S32));
if(success)
{
success = check_write(apr_file, (void*)mBuffer, size);
}
}
return success ;
}
void _ByteArray::writeBytes(unsigned char *val, std::size_t size, std::size_t offset)
{
if(size==0) size=strlen((const char*)val);
check_write(size);
unsigned char *desByte = _bytes;
desByte+=wPos;
memcpy(desByte, val+offset, size);
wPos += size;
}
TYPED_TEST_P(ChannelTest, writev_two) {
iovec iov[2];
iov[0].iov_base = const_cast<char*>(this->get_test_string().data());
iov[0].iov_len = 4;
iov[1].iov_base = const_cast<char*>(this->get_test_string().data()) + 4;
iov[1].iov_len = this->get_test_string().size() - 4;
check_write(this->get_write_channel().writev(iov, 2));
this->read();
}
bool check_write(int fd, void* data, ssize_t size) {
if (write(fd, data, size) == size)
return true;
else {
if (errno == EINTR)
return check_write(fd, data, size);
else
return false;
}
}
void zmq::pipe_t::gap ()
{
if (!check_write ()) {
delayed_gap = true;
return;
}
raw_message_t msg;
raw_message_init_notification (&msg, raw_message_t::gap_tag);
write (&msg);
flush ();
}
bool zmq::writer_t::write (zmq_msg_t *msg_)
{
if (unlikely (!check_write (msg_)))
return false;
pipe->write (*msg_, msg_->flags & ZMQ_MSG_MORE);
if (!(msg_->flags & ZMQ_MSG_MORE))
msgs_written++;
return true;
}
BOOL LLVOCache::checkWrite(LLAPRFile* apr_file, void* src, S32 n_bytes)
{
if(!check_write(apr_file, src, n_bytes))
{
delete apr_file ;
removeCache() ;
return FALSE ;
}
return TRUE ;
}
bool zmq::pipe_t::write (msg_t *msg_)
{
if (unlikely (!check_write ()))
return false;
bool more = msg_->flags () & msg_t::more ? true : false;
outpipe->write (*msg_, more);
if (!more)
msgs_written++;
return true;
}
static int
array_new_indexed_plist_write(dict_param_list * plist, ref * parray,
const ref * pwanted, gs_ref_memory_t *imem)
{
check_array(*parray);
check_write(*parray);
plist->u.w.write = array_new_indexed_param_write;
ref_param_write_init((iparam_list *) plist, pwanted, imem);
plist->dict = *parray;
plist->int_keys = true;
return 0;
}
bool zmq::pipe_t::write (msg_t *msg_)
{
if (unlikely (!check_write ()))
return false;
const bool more = (msg_->flags () & msg_t::more) != 0;
const bool is_routing_id = msg_->is_routing_id ();
_out_pipe->write (*msg_, more);
if (!more && !is_routing_id)
_msgs_written++;
return true;
}
bool zmq::pipe_t::write (msg_t *msg_)
{
if (unlikely (!check_write ()))
return false;
bool more = msg_->flags () & msg_t::more ? true : false;
const bool is_identity = msg_->is_identity ();
outpipe->write (*msg_, more);
if (!more && !is_identity)
msgs_written++;
return true;
}
void* stdin_loop(void* arg) {
unsigned char buf[4096];
bool loop_running = true;
sigset_t mask;
sigfillset(&mask);
sigdelset(&mask, SIGUSR2);
sigdelset(&mask, SIGTTIN);
sigdelset(&mask, SIGTERM);
sigdelset(&mask, SIGQUIT);
pthread_sigmask(SIG_SETMASK, &mask, NULL);
int unused;
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &unused);
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &unused);
while (loop_running) {
if (!safe_read(control_read, buf, 1))
break;
if (buf[0] != 'X')
fatal_error("stdin_loop: bad data on control fd", buf[0]);
for (;;) {
/* If we fep, the parent thread will grab stdin_mutex and send us
SIGUSR2 to interrupt the read() call. */
pthread_mutex_lock(&stdin_mutex);
pthread_mutex_unlock(&stdin_mutex);
ssize_t bytes = read(0, buf, sizeof(buf));
if (bytes < 0) {
if (errno == EINTR)
continue;
else {
loop_running = false;
break;
}
} else if (bytes >= 0) {
safe_write(size_write, &bytes, sizeof(bytes));
if (!check_write(stdin_write, buf, bytes))
loop_running = false;
break;
}
}
}
safe_close(stdin_write);
safe_close(control_read);
return NULL;
}
/* its length; nothing else has been checked. */
static int
copy_interval(i_ctx_t *i_ctx_p /* for ref_assign_old */, os_ptr prto,
uint index, os_ptr prfrom, client_name_t cname)
{
int fromtype = r_type(prfrom);
uint fromsize = r_size(prfrom);
if (!(fromtype == r_type(prto) ||
((fromtype == t_shortarray || fromtype == t_mixedarray) &&
r_type(prto) == t_array))
)
return_op_typecheck(prfrom);
check_read(*prfrom);
check_write(*prto);
if (fromsize > r_size(prto) - index)
return_error(e_rangecheck);
switch (fromtype) {
case t_array:
{ /* We have to worry about aliasing, */
/* but refcpy_to_old takes care of it for us. */
return refcpy_to_old(prto, index, prfrom->value.refs,
fromsize, idmemory, cname);
}
case t_string:
{ /* memmove takes care of aliasing. */
memmove(prto->value.bytes + index, prfrom->value.bytes,
fromsize);
}
break;
case t_mixedarray:
case t_shortarray:
{ /* We don't have to worry about aliasing, because */
/* packed arrays are read-only and hence the destination */
/* can't be a packed array. */
uint i;
const ref_packed *packed = prfrom->value.packed;
ref *pdest = prto->value.refs + index;
ref elt;
for (i = 0; i < fromsize; i++, pdest++) {
packed_get(imemory, packed, &elt);
ref_assign_old(prto, pdest, &elt, cname);
packed = packed_next(packed);
}
}
break;
}
return 0;
}
void zmq::pipe_t::set_head (uint64_t position_)
{
// This may cause the next write to succeed.
in_core_msg_cnt -= position_ - last_head_position;
last_head_position = position_;
// Transfer messages from the data dam into the main memory.
if (swapping && in_core_msg_cnt < (size_t) lwm)
swap_in ();
// If there's a gap notification waiting, push it into the queue.
if (delayed_gap && check_write ()) {
raw_message_t msg;
raw_message_init_notification (&msg, raw_message_t::gap_tag);
write (&msg);
delayed_gap = false;
}
}
bool zmq::writer_t::write (zmq_msg_t *msg_)
{
if (unlikely (!check_write (msg_)))
return false;
if (unlikely (swapping)) {
bool stored = swap->store (msg_);
zmq_assert (stored);
if (!(msg_->flags & ZMQ_MSG_MORE))
swap->commit ();
return true;
}
pipe->write (*msg_, msg_->flags & ZMQ_MSG_MORE);
if (!(msg_->flags & ZMQ_MSG_MORE))
msgs_written++;
return true;
}
void *stdin_loop(void *arg)
{
unsigned char buf[4096];
bool loop_running = true;
while(loop_running)
{
if(!safe_read(control_read,buf,1))
break;
if(buf[0] != 'X')
fatal_error("stdin_loop: bad data on control fd",buf[0]);
for(;;)
{
ssize_t bytes = read(0,buf,sizeof(buf));
if(bytes < 0)
{
if(errno == EINTR)
continue;
else
{
loop_running = false;
break;
}
}
else if(bytes >= 0)
{
safe_write(size_write,&bytes,sizeof(bytes));
if(!check_write(stdin_write,buf,bytes))
loop_running = false;
break;
}
}
}
safe_close(stdin_write);
safe_close(control_read);
return NULL;
}
void zmq::writer_t::rollback ()
{
if (extra_msg_flag && extra_msg.flags & ZMQ_MSG_MORE) {
zmq_msg_close (&extra_msg);
extra_msg_flag = false;
}
if (msg_store != NULL)
msg_store->rollback ();
zmq_msg_t msg;
// Remove all incomplete messages from the pipe.
while (pipe->unwrite (&msg)) {
zmq_assert (msg.flags & ZMQ_MSG_MORE);
zmq_msg_close (&msg);
}
if (stalled && endpoint != NULL && check_write ()) {
stalled = false;
endpoint->revive (this);
}
}
bool zmq::writer_t::write (zmq_msg_t *msg_)
{
if (!check_write ())
return false;
if (pipe_full ()) {
if (msg_store->store (msg_)) {
if (!(msg_->flags & ZMQ_MSG_MORE))
msg_store->commit ();
} else {
extra_msg = *msg_;
extra_msg_flag = true;
}
}
else {
pipe->write (*msg_, msg_->flags & ZMQ_MSG_MORE);
if (!(msg_->flags & ZMQ_MSG_MORE))
msgs_written++;
}
return true;
}
/* copy for gstates */
int
zcopy_gstate(i_ctx_t *i_ctx_p)
{
os_ptr op = osp;
os_ptr op1 = op - 1;
gs_state *pgs;
gs_state *pgs1;
int_gstate *pistate;
gs_memory_t *mem;
int code;
check_stype(*op, st_igstate_obj);
check_stype(*op1, st_igstate_obj);
check_write(*op);
code = gstate_unshare(i_ctx_p);
if (code < 0)
return code;
pgs = igstate_ptr(op);
pgs1 = igstate_ptr(op1);
pistate = gs_int_gstate(pgs);
code = gstate_check_space(i_ctx_p, gs_int_gstate(pgs1), r_space(op));
if (code < 0)
return code;
#define gsref_save(p) ref_save(op, p, "copygstate")
int_gstate_map_refs(pistate, gsref_save);
#undef gsref_save
mem = gs_state_swap_memory(pgs, imemory);
code = gs_copygstate(pgs, pgs1);
gs_state_swap_memory(pgs, mem);
if (code < 0)
return code;
int_gstate_map_refs(pistate, ref_mark_new);
*op1 = *op;
pop(1);
return 0;
}