boolean file_ext_write(void* user_data)
{
file_info_struct* data_file = (file_info_struct*)user_data;
VMUINT writelen = 0;
VMINT ret = 0;
ret = vm_fs_write(data_file->handle, (void*)data_file->data, strlen(data_file->data), &writelen);
if(ret < 0)
{
vm_log_info("Failed to write file");
return true;
}
return true;
}
extern int _write(int file, char* ptr, int len)
{
if(file < 3) {
int i;
for(i = 0; i < len; i++) {
retarget_putc(*ptr);
ptr++;
}
return len;
} else {
VMUINT written_bytes;
vm_fs_write(file, ptr, len, &written_bytes);
LOG("_write(%d, %s, %d, %d)\n", file, ptr, len, written_bytes);
return written_bytes;
}
}
/* The callback to be invoked by the system engine. */
void handle_sysevt(VMINT message, VMINT param) {
switch (message) {
case VM_EVENT_CREATE:
break;
case VM_EVENT_PAINT: {
VMWCHAR path[100];
VMINT fs = 0;
VMCHAR flag = 0;
VMCHAR write = 'a';
VMINT write_size = 0;
VMINT ret = 0;
/* This file is a flag to not update the firmware after the firmware was updated and the board reboots.
It's to prevent calling the update API in an endless loop. */
vm_chset_ascii_to_ucs2(path, 100, "c:\\firmware.txt");
fs = vm_fs_open(path,VM_FS_MODE_READ,FALSE);
if(fs<0) {
fs = vm_fs_open(path,VM_FS_MODE_CREATE_ALWAYS_WRITE,FALSE);
}
if(fs>=0) {
vm_fs_read(fs,(void *)&flag,sizeof(VMCHAR),&write_size);
if(flag==0) {
vm_fs_seek(fs,0,VM_FS_BASE_BEGINNING);
vm_fs_write(fs,(void *)&write,sizeof(VMCHAR),&write_size);
}
vm_fs_close(fs);
if(flag=='a') {
vm_log_info("firmware:have firmware update");
ret = firmware_read_update_status();
vm_log_info("firmware:update result = %d ",ret);
vm_fs_delete(path);
}
if(flag==0) {
vm_log_info("firmware update begin");
vm_firmware_trigger_update();
vm_log_info("firmware update end");
vm_pwr_reboot();
}
}
}
break;
default:
break;
}
}