globle void *genalloc(
void *theEnv,
size_t size)
{
char *memPtr;
#if BLOCK_MEMORY
memPtr = (char *) RequestChunk(theEnv,size);
if (memPtr == NULL)
{
EnvReleaseMem(theEnv,(long) ((size * 5 > 4096) ? size * 5 : 4096),FALSE);
memPtr = (char *) RequestChunk(theEnv,size);
if (memPtr == NULL)
{
EnvReleaseMem(theEnv,-1L,TRUE);
memPtr = (char *) RequestChunk(theEnv,size);
while (memPtr == NULL)
{
if ((*MemoryData(theEnv)->OutOfMemoryFunction)(theEnv,(unsigned long) size))
return(NULL);
memPtr = (char *) RequestChunk(theEnv,size);
}
}
}
#else
memPtr = (char *) malloc(size);
if (memPtr == NULL)
{
EnvReleaseMem(theEnv,(long) ((size * 5 > 4096) ? size * 5 : 4096),FALSE);
memPtr = (char *) malloc(size);
if (memPtr == NULL)
{
EnvReleaseMem(theEnv,-1L,TRUE);
memPtr = (char *) malloc(size);
while (memPtr == NULL)
{
if ((*MemoryData(theEnv)->OutOfMemoryFunction)(theEnv,size))
return(NULL);
memPtr = (char *) malloc(size);
}
}
}
#endif
MemoryData(theEnv)->MemoryAmount += (long) size;
MemoryData(theEnv)->MemoryCalls++;
return((void *) memPtr);
}
void Terrain::HandleRequests(Vector3 Pos) {
Vector3 CurrentChunk;
CurrentChunk.X = floor(Pos.X / ChunkSize);
CurrentChunk.Y = floor(Pos.Y / ChunkSize);
CurrentChunk.Z = floor(Pos.Z / ChunkSize);
// TODO: lol.
RequestChunk(CurrentChunk);
RequestChunk(CurrentChunk + Vector3(-1, 0, 0));
RequestChunk(CurrentChunk + Vector3(-1, -1, 0));
RequestChunk(CurrentChunk + Vector3( 0, -1, 0));
RequestChunk(CurrentChunk + Vector3( 1, -1, 0));
RequestChunk(CurrentChunk + Vector3( 1, 0, 0));
RequestChunk(CurrentChunk + Vector3( 1, 1, 0));
RequestChunk(CurrentChunk + Vector3( 0, 1, 0));
RequestChunk(CurrentChunk + Vector3(-1, 1, 0));
RequestChunk(CurrentChunk + Vector3( 0, 0, 1));
RequestChunk(CurrentChunk + Vector3(-1, 0, 1));
RequestChunk(CurrentChunk + Vector3(-1, -1, 1));
RequestChunk(CurrentChunk + Vector3( 0, -1, 1));
RequestChunk(CurrentChunk + Vector3( 1, -1, 1));
RequestChunk(CurrentChunk + Vector3( 1, 0, 1));
RequestChunk(CurrentChunk + Vector3( 1, 1, 1));
RequestChunk(CurrentChunk + Vector3( 0, 1, 1));
RequestChunk(CurrentChunk + Vector3(-1, 1, 1));
RequestChunk(CurrentChunk + Vector3( 0, 0, -1));
RequestChunk(CurrentChunk + Vector3(-1, 0, -1));
RequestChunk(CurrentChunk + Vector3(-1, -1, -1));
RequestChunk(CurrentChunk + Vector3( 0, -1, -1));
RequestChunk(CurrentChunk + Vector3( 1, -1, -1));
RequestChunk(CurrentChunk + Vector3( 1, 0, -1));
RequestChunk(CurrentChunk + Vector3( 1, 1, -1));
RequestChunk(CurrentChunk + Vector3( 0, 1, -1));
RequestChunk(CurrentChunk + Vector3(-1, 1, -1));
}
// Private Methods
void MhProtoClient::DownloadFileFromServer(
int cd_sd,
const char *metaFile,
const char *localFile) {
unsigned char *rcv_buffer = NULL;
unsigned char rcv_md5sum[16];
int64_t rcv_dataSize;
MD5Utils md5Utils;
rcv_buffer = static_cast<unsigned char*>(malloc(MAX_CHUNK_SIZE));
SndCmd(cd_sd, DOWNLOAD_CHUNK);
metadata_.LoadMetadata(metaFile);
metadata_.WriteMetadataHeader(cd_sd);
int fd_download = open(localFile , O_WRONLY | O_CREAT , 0000644);
if (fd_download == -1) {
perror("open download file ");
exit(1);
}
int64_t chunkNumber = -1;
int br = 0;
bool sock_error = false;
off_t filePos;
do {
DEBUG("Before lock : %ld - \033[1m\033[32m%d\033[0m\n",
i64toLong(chunkNumber),
getpid());
sem_->semaphore_get_lock();
metadata_.LoadMetadata(metaFile);
chunkNumber = metadata_.getNextPendingChunk();
if (chunkNumber == -1) {
sem_->semaphore_release_lock();
break;
}
metadata_.setChunkStatus(chunkNumber, CH_DOWNLOAD, NULL);
metadata_.UpdateControlData(metaFile);
DEBUG("Next Pending Chunk : %ld\n", i64toLong(chunkNumber));
sem_->semaphore_release_lock();
// Receive chunk
RequestChunk(cd_sd, chunkNumber);
DEBUG("Next Pending Chunk-v : %ld\n", i64toLong(chunkNumber));
br = so_read(cd_sd, rcv_md5sum, DIGEST_SIZE);
DEBUG("MD5 : <%s>\n", md5Utils.digestToStr(rcv_md5sum));
if (br != DIGEST_SIZE) {
sock_error = true;
goto update;
}
br = so_read(cd_sd, (unsigned char*)&rcv_dataSize, sizeof(int64_t));
DEBUG("Data Size : %ld\n", i64toLong(rcv_dataSize));
if (br != sizeof(int64_t)) {
sock_error = true;
goto update;
}
br = so_read(cd_sd, rcv_buffer, rcv_dataSize);
if (br != rcv_dataSize) {
sock_error = true;
goto update;
}
// hex_dump((char*)rcv_buffer,200);
filePos = (chunkNumber*metadata_.getChunkSize());
lseek(fd_download, filePos, SEEK_SET);
write(fd_download, rcv_buffer, rcv_dataSize);
update:
sem_->semaphore_get_lock();
metadata_.LoadMetadata(metaFile);
if (sock_error) {
metadata_.setChunkStatus(chunkNumber, CH_ERROR, rcv_md5sum);
chunkNumber = -1;
} else {
metadata_.setChunkStatus(chunkNumber, CH_OK, rcv_md5sum);
}
metadata_.UpdateControlData(metaFile);
sem_->semaphore_release_lock();
} while (chunkNumber != -1 && *kill_proc_ == 0);
close(fd_download);
if (rcv_buffer != NULL) free(rcv_buffer);
DEBUG("Process: no more chunks to download.\n");
}
