/**
* Intializes an ELF32-TASK
* TODO: Check Length of image
* TODO: US-Mode
* @param image The image
* @param pri Priority
*/
void* initELF(void* image, int pri, size_t size, char *args)
{
/*
* TODO Wir muessen eigentlich die Laenge vom Image pruefen, damit wir bei
* korrupten ELF-Dateien nicht ueber das Dateiende hinauslesen.
*/
DEBUG_MSG("ELF: Init ELF32-File...");
struct elf_header* header = image;
struct elf_program_header* ph;
int i;
/* Ist es ueberhaupt eine ELF-Datei? */
if (header->magic != ELF_MAGIC) {
dbg(false);
kprintf("Keine gueltige ELF-Magic!\n");
return 0;
}
/*
* Alle Program Header durchgehen und den Speicher an die passende Stelle
* kopieren.
*
* TODO Wir erlauben der ELF-Datei hier, jeden beliebigen Speicher zu
* ueberschreiben, einschliesslich dem Kernel selbst.
*/
ph = (struct elf_program_header*) (((char*) image) + header->ph_offset);
for (i = 0; i < 2/*header->ph_entry_count*/; i++, ph++) {
void* dest = (void*) ph->virt_addr;
void* src = ((char*) image) + ph->offset;
/* Nur Program Header vom Typ LOAD laden */
if (ph->type != 1)
continue;
kmemset(dest, 0, ph->mem_size);
kmemcpy(dest, src, ph->file_size);
}
//size /= PAGE_SIZE;
pageDir_t page = vmmCreateContext();
void *paddr = pmm_malloc(PAGE_SIZE);
kmemset((void*) page, 0, PAGE_SIZE);
for(i=0; i<size;i +=PAGE_SIZE)
{
vmmMapPage( page, (void*) 0xfffff000+i, paddr+i, USER_PRV ); //0xfffff000
}
vmmActivateContext( page );
initTask( (void *)header->entry, pri, page, args);
dbg(true);
return (void*) header->entry;
}
static void
resumeTask(Task * task, int code)
{
if (task->state == Task_zombie)
return;
if (!task->isInited)
initTask(task);
else
{
longjmp(task->taskEnv, code);
}
}
void HttpProtocolData::checkTasks()
{
LOG(0, "check tasks\n");
// check task status.
CURLMsg *msg = NULL;
int msgsInQueue;
while ( (msg = curl_multi_info_read(handle, &msgsInQueue)) != NULL)
{
HttpSession *ses = NULL;
CURLcode rete = curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &ses);
CHECK_CURLE(rete);
long respCode = 0;
rete = curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &respCode);
CHECK_CURLE(rete);
int topRespCode = respCode / 100;
LOG(0, "top response code = %d\n", topRespCode);
switch (msg->msg)
{
case CURLMSG_DONE:
switch (topRespCode)
{
case 2: // succeed download
if (ses->t->state == HT_PREPARE)
{
initTask(ses->t);
}
ses->length = 0; // make sure session will be removed.
checkSession(ses);
break;
default:
break;
}
break;
// TODO: handle other return code.
default:
break;
}
}
}
