rc_t
lg_tag_chunks_h::update(uint4_t start_byte, const vec_t& data) const
{
FUNC(lg_tag_chunks_h::update);
uint4_t amount; // amount to update on page
uint4_t pid_count = start_byte/lgdata_p::data_sz; // first page
uint4_t data_size = data.size();
lpid_t curr_pid(_page.pid().vol(), _cref.store, 0);
uint4_t offset = start_byte%lgdata_p::data_sz;
uint4_t num_bytes = 0;
while (num_bytes < data_size) {
amount = MIN(lgdata_p::data_sz-offset, data_size-num_bytes);
curr_pid.page = _pid(pid_count);
lgdata_p lgdata;
W_DO( lgdata.fix(curr_pid, LATCH_EX) );
W_DO(lgdata.update(offset, data, num_bytes, amount));
offset = 0;
num_bytes += amount;
pid_count++;
}
// verify last page touched is same as calculated last page
w_assert9(pid_count-1 == (start_byte+data.size()-1)/lgdata_p::data_sz);
return RCOK;
}
rc_t
lg_tag_indirect_h::update(uint4_t start_byte, const vec_t& data) const
{
FUNC(lg_tag_indirect_h::update);
uint4_t amount; // amount to update on page
uint page_to_update = start_byte/lgdata_p::data_sz; // first page
uint4_t data_size = data.size();
lpid_t curr_pid(stid(), 0);
uint4_t offset = start_byte%lgdata_p::data_sz;
uint4_t num_bytes = 0;
while (num_bytes < data_size) {
amount = MIN(lgdata_p::data_sz-offset, data_size-num_bytes);
curr_pid.page = _pid(page_to_update);
lgdata_p lgdata;
W_DO( lgdata.fix(curr_pid, LATCH_EX) );
W_DO(lgdata.update(offset, data, num_bytes, amount));
offset = 0;
num_bytes += amount;
page_to_update++;
}
w_assert9(page_to_update-1 == (start_byte+data.size()-1)/lgdata_p::data_sz);
return RCOK;
}
/*-------------------------------------------
| Name:start_kernel
| Description:
| Parameters:
| Return Type:
| Comments:
| See:
---------------------------------------------*/
void _start_kernel(char* arg){
pthread_mutexattr_t mutex_attr=0;
pthread_attr_t thread_attr;
rttmr_attr_t rttmr_attr={0};
//
__kernel_static_mode_in();
//init kernel system
_pid();
//
_vfs();
//
_flocks();
//
kernel_pthread_mutex_init(&kernel_mutex,&mutex_attr);
// rttmr_attr.tm_msec=__KERNEL_ALARM_TIMER;
// rttmr_attr.func = _kernel_timer;
// rttmr_create(&kernel_tmr,&rttmr_attr);
// rttmr_start(&kernel_tmr);
//stdio init(mutex for stdin, stdout, stderr)
__stdio_init();
//
thread_attr.stacksize = KERNEL_STACK_SIZE;
thread_attr.stackaddr = (void*)&kernel_stack;
thread_attr.priority = KERNEL_PRIORITY;
thread_attr.timeslice = 0;
thread_attr.name ="kernel_thread";
kernel_pthread_create(&kernel_thread,&thread_attr,kernel_routine,arg);
//
_kernel_warmup_profiler();
//create directory /dev, /bin, /usr, /etc.
//detect and create devices in /dev
_kernel_warmup_rootfs();
//
_kernel_warmup_cpu();
//
_kernel_warmup_load_mount_cpufs();
//
_kernel_warmup_i2c();
//
_kernel_warmup_spi();
//
_kernel_warmup_dev();
//
_kernel_warmup_tty();
//
_kernel_warmup_stream();
//
_kernel_warmup_object_manager();
//
_kernel_warmup_rtc();
//
_kernel_warmup_mount();
//
_kernel_warmup_boot();
//only in bootstrap configuration
//_kernel_warmup_elfloader();
//
#if defined (__KERNEL_NET_IPSTACK)
#if defined(USE_UIP)
uip_core_run();
#endif
#endif
//
kernel_printk_init();
//
__kernel_static_mode_out();
}
