/*============= main ================*/
int main(int argc, char *argv[])
{
// Allocate buffer to bs bytes then increase by bs bytes.
// Allocate a to 1 int then increase to 2 int.
struct BUFFER buffer = {0,NULL,256};
bufferAllocate( &buffer);
bufferAllocate( &buffer);
int *a = NULL; // Set ptr to NULL so realloc initially acts like malloc on empty block.
fAllocate(&a, 1);
a[0]=1;
fAllocate(&a, 2);
a[1]=2;
printf("a[0] = %i\n", a[0]);
printf("a[1] = %i\n", a[1]);
free(a);
free(buffer.data);
return 0;
}
// Function stores Board's in memory,
void* boardStore(board_p board, int* size)
{
void* buffer = NULL;
state_p header = NULL;
ASSERT(NULL != board, "boardStore");
ASSERT(NULL != size, "boardStore");
*size = board->prev ? sizeof(state_11_t)
: sizeof(state_10_t);
buffer = bufferAllocate(*size, NULL);
if (board->prev) {
state_11_p state = (state_11_p)buffer;
state->header.version = TAG_VERSION_11;
boardCopy(&state->current, board);
boardCopy(&state->previous, board->prev);
} else {
state_10_p state = (state_10_p)buffer;
state->header.version = TAG_VERSION_10;
boardCopy(&state->current, board);
}
header = (state_p)buffer;
header->size = *size;
header->crc = Crc16CalcBlock(
header + 1, *size - sizeof(*header), 0);
return buffer;
};
bool protocolInit(int pSocket, fd_set *pSocketSet, int pMaxSocket, int pBufferSize)
{
UNUSED(pSocket);
UNUSED(pSocketSet);
UNUSED(pMaxSocket);
return bufferAllocate(&gMessageBuffer, pBufferSize);
}
bool rtspRequestSetContent(RTSPRequest *rtspRequest, uint8_t *content, size_t contentSize, char *contentType) {
char contentSizeString[MAX_NUMBER_STRING_SIZE];
/* Add header field for content type */
if(!rtspRequestAddHeaderField(rtspRequest, "Content-Type", contentType)) {
return false;
}
/* Add header field for content size */
sprintf(contentSizeString, "%lu", (unsigned long)contentSize);
if(!rtspRequestAddHeaderField(rtspRequest, "Content-Length", contentSizeString)) {
return false;
}
/* Free any existing buffer */
if(rtspRequest->contentBuffer != NULL) {
if(!bufferFree(&rtspRequest->contentBuffer)) {
return false;
}
}
/* Allocate buffer */
if(!bufferAllocate(&rtspRequest->contentBuffer, contentSize, "RTSP request content buffer")) {
return false;
}
/* Copy buffer */
memcpy(rtspRequest->contentBuffer, content, contentSize);
rtspRequest->contentBufferSize = contentSize;
return true;
}
char* bufferAdd(Buffer* buffer, const char* string, unsigned long size) {
if (size == 0) {
return buffer->buffer;
}
bufferAllocate(buffer, size);
char* returnAddress = buffer->buffer+buffer->currentsize;
memcpy(buffer->buffer+buffer->currentsize, string, size);
buffer->currentsize += size;
return returnAddress;
}
RTSPRequest *rtspRequestCreate(RTSPRequestMethod requestMethod) {
RTSPRequest *rtspRequest;
/* Create rtsp request structure */
if(!bufferAllocate(&rtspRequest, sizeof(RTSPRequest), "RTSP request")) {
return NULL;
}
/* Initialize structure */
rtspRequest->requestMethod = requestMethod;
rtspRequest->headerBuffer = NULL;
rtspRequest->headerBufferSize = 0;
rtspRequest->maxHeaderBufferSize = 0;
rtspRequest->contentBuffer = NULL;
rtspRequest->contentBufferSize = 0;
return rtspRequest;
}
// Function tries to load a Game
game_p gameLoad(engine_p engine)
{
game_p game = NULL;
UInt16 size = 0;
int version = 0;
version = PrefGetAppPreferences(
CREATOR, SAVED_GAME, NULL, &size, 1);
if (VERSION == version && 0 < size) {
board_p board = NULL;
void* data = bufferAllocate(size, NULL);
PrefGetAppPreferences(CREATOR, SAVED_GAME,
data, &size, 1);
// ignore if game can't be loaded
TRY
{
board = boardRetain(
boardLoad(data, size));
}
CATCH {}
END;
if (NULL == board)
return NULL;
else
board = boardAutorelease(board);
switch (boardState(board)) {
case State_Victory:
case State_Defeat:
break;
default:
game = gameNew(engine, board);
break;
}
}
bool rtspRequestAddHeaderField(RTSPRequest *rtspRequest, const char *fieldName, const char *fieldValue) {
size_t fieldNameLength;
size_t fieldValueLength;
int charsWritten;
/* Allocate initial buffer if required */
if(rtspRequest->headerBuffer == NULL) {
rtspRequest->maxHeaderBufferSize = HEADER_BUFFER_INITIAL_SIZE;
if(!bufferAllocate(&rtspRequest->headerBuffer, rtspRequest->maxHeaderBufferSize, "RTSP request header buffer")) {
return false;
}
rtspRequest->headerBuffer[0] = '\0';
rtspRequest->headerBufferSize = 1; /* The '\0' byte */
}
/* Decide if enough space is available in buffer and add space if necessary. Add 4 bytes for ": " and "\r\n". */
fieldNameLength = strlen(fieldName);
fieldValueLength = strlen(fieldValue);
if(!bufferMakeRoom(&rtspRequest->headerBuffer, &rtspRequest->maxHeaderBufferSize, rtspRequest->headerBufferSize, fieldNameLength + fieldValueLength + 4, HEADER_BUFFER_INCREMENT_SIZE)) {
logWrite(LOG_LEVEL_ERROR, LOG_COMPONENT_NAME, "Cannot allocate memory to add field \"%s\" to RTSP Request header.", fieldName);
bufferFree(&rtspRequest->headerBuffer);
rtspRequest->headerBuffer = NULL;
rtspRequest->headerBufferSize = 0;
return false;
}
/* Add field name and value to buffer */
/* Offet (headerBufferSize - 1) to overwrite existing '\0' byte. A new '\0' byte will be added at the end. */
charsWritten = snprintf((char *)rtspRequest->headerBuffer + rtspRequest->headerBufferSize - 1, rtspRequest->maxHeaderBufferSize - (rtspRequest->headerBufferSize - 1), "%s: %s\r\n", fieldName, fieldValue);
if(charsWritten != fieldNameLength + fieldValueLength + 4) {
logWrite(LOG_LEVEL_ERROR, LOG_COMPONENT_NAME, "Cannot add field \"%s\" to RTSP Request header.", fieldName);
return false;
}
/* Update buffer data */
rtspRequest->headerBufferSize += charsWritten;
return true;
}
bool rtspRequestSend(RTSPRequest *rtspRequest, char *url, NetworkConnection *networkConnection) {
uint8_t *requestBuffer;
size_t maxRequestBufferSize;
int charsWritten;
/* Create buffer for full request (optimizer will get rid of all the individual constants) */
maxRequestBufferSize = 12 /* "%s %s RTSP/1.0\r\n" printable characters */
+ MAX_COMMAND_STRING_SIZE /* command (first "%s" above) */
+ MAX_URL_STRING_SIZE /* url (second "%s" above) */
+ rtspRequest->headerBufferSize - 1 /* header (excluding the terminating '\0') */
+ 2 /* CR/LF */
+ rtspRequest->contentBufferSize; /* content */
if(!bufferAllocate(&requestBuffer, maxRequestBufferSize, "RTSP request buffer")) {
return false;
}
/* Write command */
charsWritten = snprintf((char *)requestBuffer, maxRequestBufferSize, "%s %s RTSP/1.0\r\n", METHOD_NAMES[rtspRequest->requestMethod], rtspRequest->requestMethod == RTSP_METHOD_OPTIONS ? "*" : url);
if(charsWritten < 0) {
logWrite(LOG_LEVEL_ERROR, LOG_COMPONENT_NAME, "Cannot write command to request buffer.");
bufferFree(&requestBuffer);
return false;
}
/* Validate if amount of buffer is still enough (see explanation above for the following calculation) */
if(charsWritten + rtspRequest->headerBufferSize - 1 + 2 + rtspRequest->contentBufferSize > maxRequestBufferSize) {
logWrite(LOG_LEVEL_ERROR, LOG_COMPONENT_NAME, "Request buffer is not big enough to hold header and content.");
bufferFree(&requestBuffer);
return false;
}
/* Write header fields */
if(rtspRequest->headerBuffer != NULL) {
memcpy(requestBuffer + charsWritten, rtspRequest->headerBuffer, rtspRequest->headerBufferSize - 1); /* No need for '\0' so -1 */
charsWritten += rtspRequest->headerBufferSize - 1;
}
/* Write header/content separator (length validation done above) */
requestBuffer[charsWritten] = '\r';
charsWritten++;
requestBuffer[charsWritten] = '\n';
charsWritten++;
/* Write content */
if(rtspRequest->contentBuffer != NULL) {
memcpy(requestBuffer + charsWritten, rtspRequest->contentBuffer, rtspRequest->contentBufferSize);
charsWritten += rtspRequest->contentBufferSize;
}
/* Send out request */
if(!networkSendMessage(networkConnection, requestBuffer, charsWritten)) {
bufferFree(&requestBuffer);
return false;
}
/* Write info from this message */
logWrite(LOG_LEVEL_DEBUG, LOG_COMPONENT_NAME, "Sent out RTSP request:\n%.*s", charsWritten, requestBuffer);
/* Free up resources */
if(!bufferFree(&requestBuffer)) {
return false;
}
return true;
}
