P04 Modularisieren von C Code: update code to new Praktika description

P04_Modularisieren_von_C_Code/README.md

@@ -336,12 +336,16 @@ Ergänzungen durch
 
 Die Umsetzung der obigen Änderungen sind erfolgreich, wenn Sie
 folgende Shell Command Line erfolgreich ausführen können und in
-Firefox die Abhängigkeiten der C-Files von den Inclu-de Files
+Firefox die Abhängigkeiten der C-Files von den Include Files
 dargestellt wird.
 
 `make dep-clean dep && firefox src/*.png.`
 
 
+### 4.2 Resultate analysieren und erklären
+
+* Analysieren Sie die in der vorherigen Aufgabe erstellten grafischen Darstellungen.
+* Erklären Sie was dargestellt wird und stellen Sie den Bezug zum zugehörigen C-Code her.
 
 
 (04_grading)=
@@ -490,7 +494,7 @@ Es gibt als Teil dieses Tool-Sets verschiedene Übersetzer. Der hier
 verwendete ist der Basis-übersetzer: `dot`.
 
 Das `dot`-File Format kennt viele Möglichkeiten die Knoten und Kanten
-eines Graphen und de-ren Anordnung anzugeben.
+eines Graphen und deren Anordnung anzugeben.
 
 Der Vorteil eines solchen Tool-Sets ist, dass man den Inhalt (den
 Graphen) einfach definieren kann und sich nicht um das komplexe
@@ -511,7 +515,7 @@ digraph G {
    }
 
    subgraph cluster_c1 {
-      label="others"; style=filled; col-or=lightgrey;
+      label="others"; style=filled; color=lightgrey;
       { B; C; rank=same; }
    }
 
@@ -521,6 +525,13 @@ digraph G {
 }
 ```
 
+```{eval-rst}
+.. figure:: bsp_dot.png
+  :width: 210px
+  :name: bsp_dot
+  :align: center
+```
+
 
 #### 6.2.3	png File
 
@@ -529,4 +540,4 @@ Format. Es wird oft in Web Pages verwendet.
 
 
 ___
-Version: 15.02.2022
+Version: 22.02.2022

P04_Modularisieren_von_C_Code/work/modularize/src/trace.h

@@ -1,16 +0,0 @@
-/* ----------------------------------------------------------------------------
- * --  _____       ______  _____                                              -
- * -- |_   _|     |  ____|/ ____|                                             -
- * --   | |  _ __ | |__  | (___    Institute of Embedded Systems              -
- * --   | | | '_ \|  __|  \___ \   Zuercher Hochschule Winterthur             -
- * --  _| |_| | | | |____ ____) |  (University of Applied Sciences)           -
- * -- |_____|_| |_|______|_____/   8401 Winterthur, Switzerland               -
- * ----------------------------------------------------------------------------
- */
-/**
- * @file
- * @brief Lab implementation
- */
-// begin students to add code for task 4.2
-
-// end students to add code

P04_Modularisieren_von_C_Code/work/modularize/src/triangle.c

@@ -15,7 +15,6 @@
 #include <stdlib.h>
 #include "read.h"
 #include "rectang.h"
-#include "trace.h"
 
 /// max side length
 #define MAX_NUMBER 1000

P04_Modularisieren_von_C_Code/work/modularize/tests/tests.c

@@ -135,36 +135,6 @@ static void test_not_right_angled(void)
 	assert_lines(OUTFILE, out_txt, sizeof(out_txt)/sizeof(*out_txt));
 }
 
-static void test_trace(void)
-{
-	// arrange
-	const char *err_txt[] = {
-		"TRACE: main()\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: rectangular(3, 4, 6)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: rectangular(5, 4, 4)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: rectangular(3, 5, 5)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: getInt(1000)\n",
-		"TRACE: rectangular(33, 43, 55)\n",
-		"TRACE: getInt(1000)\n",
-	};
-	// act
-	int exit_code = system(XSTR(TARGET) " 1>" OUTFILE " 2>" ERRFILE " <" INFILE_NOT_RIGHT_ANGLED);
-	// assert
-	CU_ASSERT_EQUAL(exit_code, 0);
-	assert_lines(ERRFILE, err_txt, sizeof(err_txt)/sizeof(*err_txt));
-}
-
 static void test_error(void)
 {
 	// arrange
@@ -199,7 +169,6 @@ int main(void)
 	TestMainBasic("Triangle", setup, teardown
 				  , test_right_angled
 				  , test_not_right_angled
-				  , test_trace
 				  , test_error
 				  );
 }

P04_Modularisieren_von_C_Code/work/show-dependencies/src/data.h

@@ -1,19 +1,18 @@
 /**
  * @file
- * @brief  Access to the GCC produced dependency data (via gcc -H command line option).
+ * @brief  Access to the GCC produced dependency data (via -H command line option).
  */
 
 // begin of include guard
 // BEGIN-STUDENTS-TO-ADD-CODE
-
+#ifndef _DATA_H_
-
+#define _DATA_H_
 // END-STUDENTS-TO-ADD-CODE
 
 
 // includes which are needed in this header file
 // BEGIN-STUDENTS-TO-ADD-CODE
-
+#include <stddef.h>
-
 // END-STUDENTS-TO-ADD-CODE
 
 
@@ -22,17 +21,22 @@
  * @brief  Directory container for file entries of the dependency file.
  */
 // BEGIN-STUDENTS-TO-ADD-CODE
-
+typedef struct {
-
+	const char *name; ///< @brief the path name of the directory as given by the GCC produced dependency file.
+} dir_t;
 // END-STUDENTS-TO-ADD-CODE
 
 
+
 /**
  * @brief  File container for the file entries of the dependency file.
  */
 // BEGIN-STUDENTS-TO-ADD-CODE
-
+typedef struct {
-
+	const char *name; ///< @brief  The base name of the file from the GGC produced dependency file (i.e. the plain name, without any directory path).
+	size_t dir;       ///< @brief  The index of the directory entry which represents the path as given by the dependency file.
+	size_t level;     ///< @brief  The level as read out from the dependecy file.
+} file_t;
 // END-STUDENTS-TO-ADD-CODE
 
 
@@ -41,8 +45,12 @@
  * @brief  Overall container for all directories and all files from the dependency file.
  */
 // BEGIN-STUDENTS-TO-ADD-CODE
-
+typedef struct {
-
+    size_t n_dirs;  ///< @brief  The number of valid entries in the dirs list.
+	dir_t *dirs;    ///< @brief  The list of directories.
+	size_t n_files; ///< @brief  The number of valid entries in the files list.
+	file_t *files;  ///< @brief  The list of files from the dependency file (the sequence is relevant to determine the dependencies).
+} data_t;
 // END-STUDENTS-TO-ADD-CODE
 
 
@@ -53,14 +61,12 @@
  * @return           The container of the read data from stdin. See the documentation on gcc -H for details on the dependencies, etc.
  */
 // BEGIN-STUDENTS-TO-ADD-CODE
-
+const data_t data_read_all(const char *root);
-
 // END-STUDENTS-TO-ADD-CODE
 
 
 
 // end of include guard
 // BEGIN-STUDENTS-TO-ADD-CODE
-
+#endif // _DATA_H_
-
 // END-STUDENTS-TO-ADD-CODE

P04_Modularisieren_von_C_Code/work/show-dependencies/src/output.c

@@ -36,12 +36,11 @@ static size_t dependencies(file_t files[], size_t len, size_t curr)
 		if (files[file].level == level + 1) {
 			// Write to stdout "  file -> include;\n" where file and include are the DOT node names of the respective files
 			// BEGIN-STUDENTS-TO-ADD-CODE
-
+			printf("  ");
-
+			print_node(files[curr]);
-
+			printf(" -> ");
-
+			print_node(files[file]);
-
+			printf(";\n");
-
 			// END-STUDENTS-TO-ADD-CODE
 			file = dependencies(files, len, file);
 		} else {
@@ -62,11 +61,9 @@ void output_dot(const data_t data)
 	for (size_t file = 0; file < data.n_files; file++) {
 		// Write to stdout "  file [label=\"name\"];\n" where file is the DOT node name and name is the file name
 		// BEGIN-STUDENTS-TO-ADD-CODE
-
+		printf("  ");
-
+		print_node(data.files[file]);
-
+		printf(" [label=\"%s\"];\n", data.files[file].name);
-
-		
 		// END-STUDENTS-TO-ADD-CODE
 	}
 	// directory clusters
@@ -77,11 +74,9 @@ void output_dot(const data_t data)
 			if (data.files[file].dir == dir) {
 				// Write to stdout "    file;\n" where file is the DOT node name
 				// BEGIN-STUDENTS-TO-ADD-CODE
-
+				printf("    ");
-
+				print_node(data.files[file]);
-
+				printf(";\n");
-
-
 				// END-STUDENTS-TO-ADD-CODE
 			}
 		}

P04_Modularisieren_von_C_Code/work/show-dependencies/src/output.h

@@ -4,9 +4,17 @@
  */
 // define proper header file here, with include gaurd, etc.
 // BEGIN-STUDENTS-TO-ADD-CODE
+#ifndef _OUTPUT_H_
+#define _OUTPUT_H_
+
+#include "data.h"
+
+/**
+ * @brief           Produces DOT output of the dependencies given in data.
+ * @param data [IN] Container of the dependenciy data.
+ */
+void output_dot(const data_t data);
 
 
-
+#endif // _OUTPUT_H_
-
-
 // END-STUDENTS-TO-ADD-CODE