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<h1>cl_syoscb_queue.svh</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/// Class which base concet of a queue. All queues must extend this class</span>
<a name="l00002"></a>00002 <span class="comment"></span><span class="comment">/// and implement the queue API.</span>
<a name="l00003"></a><a class="code" href="classcl__syoscb__queue.html">00003</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a> <span class="keyword">extends</span> uvm_component;
<a name="l00004"></a>00004 <span class="comment">//-------------------------------------</span>
<a name="l00005"></a>00005 <span class="comment">// Non randomizable variables</span>
<a name="l00006"></a>00006 <span class="comment">//-------------------------------------</span><span class="comment"></span>
<a name="l00007"></a>00007 <span class="comment"> /// Handle to the configuration</span>
<a name="l00008"></a><a class="code" href="classcl__syoscb__queue.html#ab92efb1fb67ec7cc8dfe928a474a3e2b">00008</a> <span class="comment"></span> <span class="keyword">protected</span> <a class="code" href="classcl__syoscb__cfg.html" title="Configuration class for the SyoSil UVM scoreboard.">cl_syoscb_cfg</a> <a class="code" href="classcl__syoscb__queue.html#ab92efb1fb67ec7cc8dfe928a474a3e2b" title="Handle to the configuration.">cfg</a>;
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment"> /// List of iterators registered with queue</span>
<a name="l00011"></a><a class="code" href="classcl__syoscb__queue.html#af73fa6ac19ef7a629ad5f5eddf918780">00011</a> <span class="comment"></span> <span class="keyword">protected</span> <a class="code" href="classcl__syoscb__queue__iterator__base.html" title="Queue iterator base class defining the iterator API used for iterating queues.">cl_syoscb_queue_iterator_base</a> <a class="code" href="classcl__syoscb__queue.html#af73fa6ac19ef7a629ad5f5eddf918780" title="List of iterators registered with queue.">iterators</a>[<a class="code" href="classcl__syoscb__queue__iterator__base.html" title="Queue iterator base class defining the iterator API used for iterating queues.">cl_syoscb_queue_iterator_base</a>];
<a name="l00012"></a>00012 <span class="comment"></span>
<a name="l00013"></a>00013 <span class="comment"> /// Current number of iterators</span>
<a name="l00014"></a><a class="code" href="classcl__syoscb__queue.html#a3b9f8500d7d93d01eda717aac6ef4c28">00014</a> <span class="comment"></span> <span class="keyword">protected</span> int unsigned <a class="code" href="classcl__syoscb__queue.html#a3b9f8500d7d93d01eda717aac6ef4c28" title="Current number of iterators.">iter_idx</a>;
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> /// Semaphore guarding exclusive access to the queue when</span>
<a name="l00017"></a>00017 <span class="comment"> /// multiple iterators are in play</span>
<a name="l00018"></a><a class="code" href="classcl__syoscb__queue.html#a7ce6c5e6c1b4fcd09f90ec2699cc594c">00018</a> <span class="comment"></span> <span class="keyword">protected</span> semaphore <a class="code" href="classcl__syoscb__queue.html#a7ce6c5e6c1b4fcd09f90ec2699cc594c" title="Semaphore guarding exclusive access to the queue when multiple iterators are in play...">iter_sem</a>;
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="comment">// Counter for counting the number of inserts</span>
<a name="l00021"></a>00021 <span class="keyword">protected</span> int unsigned cnt_add_item = 0;
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="comment">//-------------------------------------</span>
<a name="l00024"></a>00024 <span class="comment">// UVM Macros</span>
<a name="l00025"></a>00025 <span class="comment">//-------------------------------------</span>
<a name="l00026"></a>00026 `uvm_component_utils_begin(cl_syoscb_queue)
<a name="l00027"></a>00027 `uvm_field_object(cfg, UVM_DEFAULT)
<a name="l00028"></a>00028 <span class="comment">// TBD::JSA: Lacks a user defined implementation of field macro</span>
<a name="l00029"></a>00029 <span class="comment">// for completeness since: `uvm_field_aa_object-object does not exist</span>
<a name="l00030"></a>00030 `uvm_field_int(iter_idx, UVM_DEFAULT)
<a name="l00031"></a>00031 `uvm_field_int(cnt_add_item, UVM_DEFAULT)
<a name="l00032"></a>00032 `uvm_component_utils_end
<a name="l00033"></a>00033
<a name="l00034"></a>00034 <span class="comment">//-------------------------------------</span>
<a name="l00035"></a>00035 <span class="comment">// Constructor</span>
<a name="l00036"></a>00036 <span class="comment">//-------------------------------------</span>
<a name="l00037"></a>00037 extern function new(string name, uvm_component parent);
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="comment">//-------------------------------------</span>
<a name="l00040"></a>00040 <span class="comment">// UVM Phase methods</span>
<a name="l00041"></a>00041 <span class="comment">//-------------------------------------</span>
<a name="l00042"></a>00042 extern function void <a class="code" href="classcl__syoscb__queue.html#a14e4b7b0e2931b2b1e7f54e7cde32152" title="Gets the global scoreboard configuration.">build_phase</a>(uvm_phase phase);
<a name="l00043"></a>00043 extern function void <a class="code" href="classcl__syoscb__queue.html#a28b1b880efb1f93eeb48890914685e43" title="Checks if the queue is empty. If not then a UVM error is issued.">check_phase</a>(uvm_phase phase);
<a name="l00044"></a>00044 extern function void <a class="code" href="classcl__syoscb__queue.html#aac9a0b845a8b1947365fcddc7f37206a" title="Prints queue stats.">report_phase</a>(uvm_phase phase);
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="comment">//-------------------------------------</span>
<a name="l00047"></a>00047 <span class="comment">// Queue API</span>
<a name="l00048"></a>00048 <span class="comment">//-------------------------------------</span>
<a name="l00049"></a>00049 <span class="comment">// Basic queue functions</span>
<a name="l00050"></a>00050 extern <span class="keyword">virtual</span> function bit <a class="code" href="classcl__syoscb__queue.html#ada66fbc0eb1ef86b417fcdeaa5e9b9e0" title="Queue API: Adds an uvm_sequence_item.">add_item</a>(string producer, uvm_sequence_item item);
<a name="l00051"></a>00051 extern <span class="keyword">virtual</span> function bit <a class="code" href="classcl__syoscb__queue.html#a0ff5e60a18767a97056e02baf47b26b8" title="Queue API: Deletes the item at index idx from the queue">delete_item</a>(int unsigned idx);
<a name="l00052"></a>00052 extern <span class="keyword">virtual</span> function <a class="code" href="classcl__syoscb__item.html" title="The UVM scoreboard item.">cl_syoscb_item</a> <a class="code" href="classcl__syoscb__queue.html#a5610529db04d89e3ad4173e9960b04fa" title="Queue API: Gets the item at index idx from the queue">get_item</a>(int unsigned idx);
<a name="l00053"></a>00053 extern <span class="keyword">virtual</span> function int unsigned <a class="code" href="classcl__syoscb__queue.html#aa5f825cc085c487e603257e10bcc3f86" title="Queue API: Returns the current size of the queue">get_size</a>();
<a name="l00054"></a>00054 extern <span class="keyword">virtual</span> function bit <a class="code" href="classcl__syoscb__queue.html#a5b02ba85e905f5119ee18239f0e471d3" title="Queue API: Returns whether or not the queue is empty.">empty</a>();
<a name="l00055"></a>00055 extern <span class="keyword">virtual</span> function bit <a class="code" href="classcl__syoscb__queue.html#adbb41d1162a0f3dbb84c657d2274c0cb" title="Queue API: Inserts a uvm_sequence_item at index idx.">insert_item</a>(string producer, uvm_sequence_item item, int unsigned idx);
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="comment">// Iterator support functions</span>
<a name="l00058"></a>00058 extern <span class="keyword">virtual</span> function <a class="code" href="classcl__syoscb__queue__iterator__base.html" title="Queue iterator base class defining the iterator API used for iterating queues.">cl_syoscb_queue_iterator_base</a> <a class="code" href="classcl__syoscb__queue.html#a443750e1bf6c4a231438e821466f1d7e" title="Queue API: Creates an iterator for this queue.">create_iterator</a>();
<a name="l00059"></a>00059 extern <span class="keyword">virtual</span> function bit <a class="code" href="classcl__syoscb__queue.html#a21e2463b97abce478edd3aa94d17372e" title="Queue API: Deletes a given iterator for this queue.">delete_iterator</a>(cl_syoscb_queue_iterator_base iterator);
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="comment">// Locator support functions</span>
<a name="l00062"></a>00062 <span class="comment">// TBD::JSA: Locator not implemented yet</span>
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="comment">// Misc support functions </span>
<a name="l00065"></a>00065 extern function <a class="code" href="classcl__syoscb__cfg.html" title="Configuration class for the SyoSil UVM scoreboard.">cl_syoscb_cfg</a> get_cfg();
<a name="l00066"></a>00066 endclass: <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>
<a name="l00067"></a>00067
<a name="l00068"></a>00068 function <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::new(string name, uvm_component parent);
<a name="l00069"></a>00069 super.new(name, parent);
<a name="l00070"></a>00070
<a name="l00071"></a>00071 this.<a class="code" href="classcl__syoscb__queue.html#a7ce6c5e6c1b4fcd09f90ec2699cc594c" title="Semaphore guarding exclusive access to the queue when multiple iterators are in play...">iter_sem</a> = new(1);
<a name="l00072"></a>00072 this.<a class="code" href="classcl__syoscb__queue.html#a3b9f8500d7d93d01eda717aac6ef4c28" title="Current number of iterators.">iter_idx</a> = 0;
<a name="l00073"></a>00073 endfunction: new
<a name="l00074"></a>00074 <span class="comment"></span>
<a name="l00075"></a>00075 <span class="comment">/// Gets the global scoreboard configuration</span>
<a name="l00076"></a><a class="code" href="classcl__syoscb__queue.html#a14e4b7b0e2931b2b1e7f54e7cde32152">00076</a> <span class="comment"></span>function void <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#a14e4b7b0e2931b2b1e7f54e7cde32152" title="Gets the global scoreboard configuration.">build_phase</a>(uvm_phase phase);
<a name="l00077"></a>00077 if (!uvm_config_db #(cl_syoscb_cfg)::get(this, "", "cfg", this.cfg)) begin
<a name="l00078"></a>00078 `uvm_fatal("CFG_ERROR", $sformatf("[%s]: Configuration object not passed.", this.cfg.get_scb_name()))
<a name="l00079"></a>00079 end
<a name="l00080"></a>00080 endfunction
<a name="l00081"></a>00081 <span class="comment"></span>
<a name="l00082"></a>00082 <span class="comment">/// Checks if the queue is empty. If not then a UVM error is issued.</span>
<a name="l00083"></a><a class="code" href="classcl__syoscb__queue.html#a28b1b880efb1f93eeb48890914685e43">00083</a> <span class="comment"></span>function void <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#a28b1b880efb1f93eeb48890914685e43" title="Checks if the queue is empty. If not then a UVM error is issued.">check_phase</a>(uvm_phase phase);
<a name="l00084"></a>00084 <span class="comment">// Check that this queue is empty. If not then issue an error</span>
<a name="l00085"></a>00085 if(!this.empty()) begin
<a name="l00086"></a>00086 <span class="comment">// *NOTE*: Using this.get_name() is sufficient since the component</span>
<a name="l00087"></a>00087 <span class="comment">// instance name is the queue name by definition</span>
<a name="l00088"></a>00088 `uvm_error("QUEUE_ERROR", $sformatf("[%s]: Queue %s not empty, entries: %0d", this.cfg.get_scb_name(), this.get_name(), this.get_size()));
<a name="l00089"></a>00089 end
<a name="l00090"></a>00090 endfunction
<a name="l00091"></a>00091 <span class="comment"></span>
<a name="l00092"></a>00092 <span class="comment">/// Prints queue stats</span>
<a name="l00093"></a><a class="code" href="classcl__syoscb__queue.html#aac9a0b845a8b1947365fcddc7f37206a">00093</a> <span class="comment"></span>function void <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#aac9a0b845a8b1947365fcddc7f37206a" title="Prints queue stats.">report_phase</a>(uvm_phase phase);
<a name="l00094"></a>00094 string stats;
<a name="l00095"></a>00095
<a name="l00096"></a>00096 stats = $sformatf("Inserts: %0d, Macthed: %0d, Orphans: %0d", this.cnt_add_item, this.cnt_add_item-this.get_size(), this.get_size());
<a name="l00097"></a>00097
<a name="l00098"></a>00098 <span class="comment">// *NOTE*: Using this.get_name() is sufficient since the component</span>
<a name="l00099"></a>00099 <span class="comment">// instance name is the queue name by definition</span>
<a name="l00100"></a>00100 `uvm_info("QUEUE", $sformatf("[%s]: Statistics for queue: %s:\n%s", this.cfg.get_scb_name(), this.get_name(), stats), UVM_NONE)
<a name="l00101"></a>00101 endfunction
<a name="l00102"></a>00102 <span class="comment"></span>
<a name="l00103"></a>00103 <span class="comment">/// <b>Queue API:</b> Adds an uvm_sequence_item. The implementation must wrap this in a</span>
<a name="l00104"></a>00104 <span class="comment">/// cl_syoscb_item object before the item is inserted</span>
<a name="l00105"></a><a class="code" href="classcl__syoscb__queue.html#ada66fbc0eb1ef86b417fcdeaa5e9b9e0">00105</a> <span class="comment"></span>function bit <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#ada66fbc0eb1ef86b417fcdeaa5e9b9e0" title="Queue API: Adds an uvm_sequence_item.">add_item</a>(string producer, uvm_sequence_item item);
<a name="l00106"></a>00106 `uvm_fatal("IMPL_ERROR", $sformatf("[%s]: cl_syoscb_queue::add_item() *MUST* be overwritten", this.cfg.get_scb_name()));
<a name="l00107"></a>00107 return(1'b0);
<a name="l00108"></a>00108 endfunction
<a name="l00109"></a>00109 <span class="comment"></span>
<a name="l00110"></a>00110 <span class="comment">/// <b>Queue API:</b> Deletes the item at index idx from the queue</span>
<a name="l00111"></a><a class="code" href="classcl__syoscb__queue.html#a0ff5e60a18767a97056e02baf47b26b8">00111</a> <span class="comment"></span>function bit <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#a0ff5e60a18767a97056e02baf47b26b8" title="Queue API: Deletes the item at index idx from the queue">delete_item</a>(int unsigned idx);
<a name="l00112"></a>00112 `uvm_fatal("IMPL_ERROR", $sformatf("[%s]: cl_syoscb_queue::delete_item() *MUST* be overwritten", this.cfg.get_scb_name()));
<a name="l00113"></a>00113 return(1'b0);
<a name="l00114"></a>00114 endfunction
<a name="l00115"></a>00115 <span class="comment"></span>
<a name="l00116"></a>00116 <span class="comment">/// <b>Queue API:</b> Gets the item at index idx from the queue</span>
<a name="l00117"></a><a class="code" href="classcl__syoscb__queue.html#a5610529db04d89e3ad4173e9960b04fa">00117</a> <span class="comment"></span>function <a class="code" href="classcl__syoscb__item.html" title="The UVM scoreboard item.">cl_syoscb_item</a> <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#a5610529db04d89e3ad4173e9960b04fa" title="Queue API: Gets the item at index idx from the queue">get_item</a>(int unsigned idx);
<a name="l00118"></a>00118 `uvm_fatal("IMPL_ERROR", $sformatf("[%s]: cl_syoscb_queue::get_item() *MUST* be overwritten", this.cfg.get_scb_name()));
<a name="l00119"></a>00119 return(null);
<a name="l00120"></a>00120 endfunction
<a name="l00121"></a>00121 <span class="comment"></span>
<a name="l00122"></a>00122 <span class="comment">/// <b>Queue API:</b> Returns the current size of the queue</span>
<a name="l00123"></a><a class="code" href="classcl__syoscb__queue.html#aa5f825cc085c487e603257e10bcc3f86">00123</a> <span class="comment"></span>function int unsigned <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#aa5f825cc085c487e603257e10bcc3f86" title="Queue API: Returns the current size of the queue">get_size</a>();
<a name="l00124"></a>00124 `uvm_fatal("IMPL_ERROR", $sformatf("[%s]: cl_syoscb_queue::get_size() *MUST* be overwritten", this.cfg.get_scb_name()));
<a name="l00125"></a>00125 return(0);
<a name="l00126"></a>00126 endfunction
<a name="l00127"></a>00127 <span class="comment"></span>
<a name="l00128"></a>00128 <span class="comment">/// <b>Queue API:</b> Returns whether or not the queue is empty. 1'b0 means thet te queue</span>
<a name="l00129"></a>00129 <span class="comment">/// is not empty. 1'b1 means that the queue is empty</span>
<a name="l00130"></a><a class="code" href="classcl__syoscb__queue.html#a5b02ba85e905f5119ee18239f0e471d3">00130</a> <span class="comment"></span>function bit <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#a5b02ba85e905f5119ee18239f0e471d3" title="Queue API: Returns whether or not the queue is empty.">empty</a>();
<a name="l00131"></a>00131 `uvm_fatal("IMPL_ERROR", $sformatf("[%s]: cl_syoscb_queue::empty() *MUST* be overwritten", this.cfg.get_scb_name()));
<a name="l00132"></a>00132 return(0);
<a name="l00133"></a>00133 endfunction
<a name="l00134"></a>00134 <span class="comment"></span>
<a name="l00135"></a>00135 <span class="comment">/// <b>Queue API:</b> Inserts a uvm_sequence_item at index idx. The implementation must wrap</span>
<a name="l00136"></a>00136 <span class="comment">/// the uvm_sequence_item in a cl_syoscb_item before it is inserted.</span>
<a name="l00137"></a><a class="code" href="classcl__syoscb__queue.html#adbb41d1162a0f3dbb84c657d2274c0cb">00137</a> <span class="comment"></span>function bit <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#adbb41d1162a0f3dbb84c657d2274c0cb" title="Queue API: Inserts a uvm_sequence_item at index idx.">insert_item</a>(string producer, uvm_sequence_item item, int unsigned idx);
<a name="l00138"></a>00138 `uvm_fatal("IMPL_ERROR", $sformatf("[%s]: cl_syoscb_queue::insert_item() *MUST* be overwritten", this.cfg.get_scb_name()));
<a name="l00139"></a>00139 return(1'b0);
<a name="l00140"></a>00140 endfunction
<a name="l00141"></a>00141 <span class="comment"></span>
<a name="l00142"></a>00142 <span class="comment">/// <b>Queue API:</b> Creates an iterator for this queue.</span>
<a name="l00143"></a><a class="code" href="classcl__syoscb__queue.html#a443750e1bf6c4a231438e821466f1d7e">00143</a> <span class="comment"></span>function <a class="code" href="classcl__syoscb__queue__iterator__base.html" title="Queue iterator base class defining the iterator API used for iterating queues.">cl_syoscb_queue_iterator_base</a> <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#a443750e1bf6c4a231438e821466f1d7e" title="Queue API: Creates an iterator for this queue.">create_iterator</a>();
<a name="l00144"></a>00144 `uvm_fatal("IMPL_ERROR", $sformatf("[%s]: cl_syoscb_queue::create_iterator() *MUST* be overwritten", this.cfg.get_scb_name()));
<a name="l00145"></a>00145 return(null);
<a name="l00146"></a>00146 endfunction
<a name="l00147"></a>00147 <span class="comment"></span>
<a name="l00148"></a>00148 <span class="comment">/// <b>Queue API:</b> Deletes a given iterator for this queue.</span>
<a name="l00149"></a><a class="code" href="classcl__syoscb__queue.html#a21e2463b97abce478edd3aa94d17372e">00149</a> <span class="comment"></span>function bit <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::<a class="code" href="classcl__syoscb__queue.html#a21e2463b97abce478edd3aa94d17372e" title="Queue API: Deletes a given iterator for this queue.">delete_iterator</a>(cl_syoscb_queue_iterator_base iterator);
<a name="l00150"></a>00150 `uvm_fatal("IMPL_ERROR", $sformatf("[%s]: cl_syoscb_queue::delete_item() *MUST* be overwritten", this.cfg.get_scb_name()));
<a name="l00151"></a>00151 return(1'b0);
<a name="l00152"></a>00152 endfunction
<a name="l00153"></a>00153
<a name="l00154"></a>00154 function <a class="code" href="classcl__syoscb__cfg.html" title="Configuration class for the SyoSil UVM scoreboard.">cl_syoscb_cfg</a> <a class="code" href="classcl__syoscb__queue.html" title="Class which base concet of a queue.">cl_syoscb_queue</a>::get_cfg();
<a name="l00155"></a>00155 return(this.cfg);
<a name="l00156"></a>00156 endfunction
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