Allow setting initial fetch size.

Author: wolfpld

config.ini

@@ -12,8 +12,10 @@ threads = 4
 
 
 [global]
-; How many articles to fetch and present in each feed
-articles = 10
+; How many articles to fetch initially in each feed
+initial = 10
+; How many articles to keep in each feed
+articles = 30
 ; Time between feed refreshes, in seconds
 refresh = 3600
 ; Time to wait after feed refresh failure happens
@@ -27,6 +29,7 @@ apod = 1
 
 ; Values set in the global section may be overriden per feed
 [apod]
-;articles = 10
+;initial = 10
+;articles = 30
 ;refresh = 3600
 ;failure = 60

src/Apod.cpp

@@ -14,12 +14,13 @@ Apod::Apod()
 
 bool Apod::InitializeImpl( ini_t* config )
 {
+    ini_sget( config, "apod", "initial", "%d", &m_initialArticles );
     ini_sget( config, "apod", "articles", "%d", &m_numArticles );
     ini_sget( config, "apod", "refresh", "%d", &m_refresh );
     ini_sget( config, "apod", "failure", "%d", &m_failureRefresh );
 
-    const bool status = m_numArticles > 0;
-    PrintStatus( status, "Initialization: configured for %i articles, refresh: %s", m_numArticles, FormatTime( m_refresh ) );
+    const bool status = m_numArticles > 0 && m_initialArticles > 0;
+    PrintStatus( status, "Initialization: configured for %i articles (%i initial), refresh: %s", m_numArticles, m_initialArticles, FormatTime( m_refresh ) );
     return status;
 }
 
@@ -71,7 +72,7 @@ bool Apod::FetchImpl( bool first )
 
         auto next = article->select_node( "//a[text()='<']" );
         if( !next ) return !m_articles.empty();
-        if( first && ++num == m_numArticles ) return true;
+        if( first && ++num == m_initialArticles ) return true;
 
         url = m_baseUrl + next.node().attribute( "href" ).as_string();
         article = FetchDom( FetchPage( url.c_str() ) );

src/Handler.cpp

@@ -42,6 +42,7 @@ bool Handler::Initialize( ini_t* config )
     m_feedUrlShort = "/apod";
     m_feedUrl = std::string( ini_get( config, "server", "url" ) ) + m_feedUrlShort;
 
+    ini_sget( config, "global", "initial", "%d", &m_initialArticles );
     ini_sget( config, "global", "articles", "%d", &m_numArticles );
     ini_sget( config, "global", "refresh", "%d", &m_refresh );
     ini_sget( config, "global", "failure", "%d", &m_failureRefresh );

src/Handler.hpp

@@ -63,6 +63,7 @@ class Handler
 
     std::string m_icon;
 
+    int m_initialArticles;
     int m_numArticles;
     int m_refresh;
     int m_failureRefresh;