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97 lines
3.4 KiB
97 lines
3.4 KiB
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/******************************************************************************
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* Copyright © 2014-2018 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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//
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// LP_messages.c
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// marketmaker
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//
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struct LP_messageinfo { struct LP_messageinfo *next,*prev; cJSON *msgjson; int32_t ind; } *LP_MSGS;
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int32_t Num_messages;
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void LP_gotmessage(cJSON *argjson)
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{
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struct LP_messageinfo *msg = calloc(1,sizeof(*msg));
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msg->msgjson = jduplicate(argjson);
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msg->ind = Num_messages++;
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portable_mutex_lock(&LP_messagemutex);
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DL_APPEND(LP_MSGS,msg);
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portable_mutex_unlock(&LP_messagemutex);
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}
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void LP_deletemessages(int32_t firsti,int32_t num)
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{
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struct LP_messageinfo *msg,*tmp; int32_t lasti;
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if ( num == 0 )
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num = 100;
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if ( firsti < 0 )
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firsti = 0;
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else if ( firsti >= Num_messages )
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return;
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lasti = firsti + num - 1;
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if ( lasti < Num_messages-1 )
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lasti = Num_messages - 1;
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DL_FOREACH_SAFE(LP_MSGS,msg,tmp)
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{
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if ( msg->ind >= firsti && msg->ind <= lasti )
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{
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portable_mutex_lock(&LP_messagemutex);
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DL_DELETE(LP_MSGS,msg);
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portable_mutex_unlock(&LP_messagemutex);
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free_json(msg->msgjson);
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free(msg);
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}
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}
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}
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cJSON *LP_getmessages(int32_t firsti,int32_t num)
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{
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struct LP_messageinfo *msg,*tmp; int32_t lasti,n=0,maxi=-1,mini=-1; cJSON *retjson,*item,*array = cJSON_CreateArray();
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retjson = cJSON_CreateObject();
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if ( num == 0 )
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num = 100;
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if ( firsti < 0 )
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firsti = 0;
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else if ( firsti >= Num_messages )
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{
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jadd(retjson,"messages",array);
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return(retjson);
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}
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lasti = firsti + num - 1;
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if ( lasti < Num_messages-1 )
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lasti = Num_messages - 1;
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DL_FOREACH_SAFE(LP_MSGS,msg,tmp)
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{
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if ( msg->ind >= firsti && msg->ind <= lasti )
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{
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item = cJSON_CreateObject();
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jaddnum(item,"ind",msg->ind);
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jadd(item,"msg",jduplicate(msg->msgjson));
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jaddi(array,item);
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if ( mini == -1 || msg->ind < mini )
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mini = msg->ind;
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if ( maxi == -1 || msg->ind > maxi )
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maxi = msg->ind;
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n++;
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}
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}
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jadd(retjson,"messages",array);
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jaddnum(retjson,"firsti",firsti);
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jaddnum(retjson,"lasti",lasti);
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jaddnum(retjson,"minind",mini);
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jaddnum(retjson,"maxind",maxi);
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jaddnum(retjson,"num",n);
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return(retjson);
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}
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