tmsg.cpp

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#include "all.h"
 
DEVILUTION_BEGIN_NAMESPACE
 
static TMsg *sgpTimedMsgHead;
 
int tmsg_get(BYTE *pbMsg, DWORD dwMaxLen)
{
    int len;
    TMsg *head;
 
    if (!sgpTimedMsgHead)
        return 0;
 
    if ((int)(sgpTimedMsgHead->hdr.dwTime - SDL_GetTicks()) >= 0)
        return 0;
    head = sgpTimedMsgHead;
    sgpTimedMsgHead = head->hdr.pNext;
    len = head->hdr.bLen;
    // BUGFIX: ignores dwMaxLen
    memcpy(pbMsg, head->body, len);
    mem_free_dbg(head);
    return len;
}
 
void tmsg_add(BYTE *pbMsg, BYTE bLen)
{
    TMsg **tail;
 
    TMsg *msg = (TMsg *)DiabloAllocPtr(bLen + sizeof(*msg));
    msg->hdr.pNext = NULL;
    msg->hdr.dwTime = SDL_GetTicks() + 500;
    msg->hdr.bLen = bLen;
    memcpy(msg->body, pbMsg, bLen);
    for (tail = &sgpTimedMsgHead; *tail; tail = &(*tail)->hdr.pNext) {
        ;
    }
    *tail = msg;
}
 
void tmsg_start()
{
    assert(! sgpTimedMsgHead);
}
 
void tmsg_cleanup()
{
    TMsg *next;
 
    while (sgpTimedMsgHead) {
        next = sgpTimedMsgHead->hdr.pNext;
        MemFreeDbg(sgpTimedMsgHead);
        sgpTimedMsgHead = next;
    }
}
 
DEVILUTION_END_NAMESPACE