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111 lines
2.6 KiB
C
Executable File
111 lines
2.6 KiB
C
Executable File
/*
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Serval Distributed Numbering Architecture (DNA)
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Copyright (C) 2010 Paul Gardner-Stephen
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "mphlr.h"
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int clearResponse(struct response **response)
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{
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while(*response)
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{
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struct response *r=*response;
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*response=(*response)->next;
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if (r->response) free(r->response);
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r->response=NULL;
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free(r);
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}
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return 0;
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}
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int eraseLastResponse(struct response_set *responses)
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{
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if (!responses) return -1;
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if (responses->last_response)
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{
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struct response *newtail;
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if (responses->last_response->prev) responses->last_response->prev->next=NULL;
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newtail=responses->last_response->prev;
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if (responses->responses==responses->last_response) responses->responses=NULL;
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clearResponse(&responses->last_response);
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responses->last_response=newtail;
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responses->response_count--;
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}
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return 0;
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}
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int responseFromPeer(struct response_set *responses,int peerId)
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{
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int byte;
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int bit;
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if (peerId<0||peerId>peer_count) return -1;
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if (!responses) return -1;
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if (!responses->reply_bitmask)
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{
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responses->reply_bitmask=calloc(1,(peer_count>>3)+(peer_count&7)?1:0);
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if (!responses->reply_bitmask) return -1;
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}
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byte=peerId>>3;
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bit=peerId&7;
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responses->reply_bitmask[byte]|=1<<bit;
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return 0;
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}
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int responseFromPeerP(struct response_set *responses,int peerId)
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{
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int byte;
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int bit;
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if (!responses) return 0;
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if (!responses->reply_bitmask) return 0;
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if (peerId<0||peerId>peer_count) return 0;
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byte=peerId>>3;
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bit=peerId&7;
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return responses->reply_bitmask[byte]&(1<<bit);
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}
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int clearResponses(struct response_set *responses)
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{
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struct response *r;
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if (!responses) return -1;
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r=responses->responses;
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while(r)
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{
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struct response *rr=r;
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r=r->next;
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free(rr);
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}
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if (responses->reply_bitmask) free(responses->reply_bitmask);
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responses->reply_bitmask=NULL;
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responses->last_response=NULL;
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responses->responses=NULL;
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responses->response_count=0;
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return 0;
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}
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