操作系统 课程设计实验报告.doc

操作系统实验报告班级： 学号： 姓名： 【实验内容】（1）要求：熟悉和理解Linux编程环境内容v 编写一个C程序，使用Linux下的图形库，分窗口显示三个并发进程的运行。（2）要求：掌握添加设备驱动程序的方法内容：v 采用模块方法，添加一个新的设备驱动程序。v 要求添加字符设备的驱动。v 编写一个应用程序，测试添加的驱动程序。（3）要求：理解和分析/proc文件内容v 了解/proc文件的特点和使用方法。v 监控系统状态，显示系统中若干部件的使用情况。v 用图形界面显示系统监控状态。【实验过程】1. 安装和学习LINUX 下 GTK的使用：$sudo apt-get install build-essential$sudo apt-get install gnome-core-devel$sudo apt-get install pkg-config$sudo apt-get install libgtk2.0*（下载安装GTK）2. 初步架构：每个GTK项目大同小异，使用相同的库函数（当然参数根据具体情况而定，而特殊的函数是为了实现特殊的功能）。首先要创建窗体window，设置完参数后连接到信号并设置窗口名称；然后创建组装盒，设置参数（横向纵向，位置等等），然后将组装盒放进window并显示；在组装盒内部，根据不同实验的具体要求创建标签或者进度条等项目，设置好参数（比如在组装盒内的排布问题）后放入组装盒并显示；最后说明，一个窗口可以由多个组装盒组成，一个组装盒一般有多个标签， 项目的整体实现就是由组装盒和标签“罗列”而成。3. 撰写源程序：【实验一】： #include #include #include gint progress_timeout( gpointer pbar ) gdouble new_val; char s10; new_val = gtk_progress_bar_get_fraction (GTK_PROGRESS_BAR (pbar) + 0.01; if (new_val 1.0) new_val = 0.0; sprintf (s, %.0f%, new_val*100); gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR (pbar), new_val); gtk_progress_bar_set_text (GTK_PROGRESS_BAR (pbar),s); return TRUE; void destroy_progress( GtkWidget *widget) gtk_main_quit ();void show(int argc,char *argv,char *title ) GtkWidget *window; GtkWidget *vbox; GtkWidget *pbar; GtkWidget *pbar2; GtkWidget *button; GtkWidget *label; int timer; char id_char50; gtk_init (&argc, &argv); window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_window_set_resizable (GTK_WINDOW (window), TRUE); gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER); g_signal_connect (G_OBJECT (window), destroy, G_CALLBACK (destroy_progress), NULL); gtk_window_set_title (GTK_WINDOW (window), title); gtk_container_set_border_width (GTK_CONTAINER (window), 0); vbox = gtk_vbox_new (FALSE, 10); gtk_container_set_border_width (GTK_CONTAINER (vbox), 10); gtk_container_add (GTK_CONTAINER (window), vbox); gtk_widget_show (vbox); sprintf (id_char, 鏈繘绋婭D:%d, getpid (); label = gtk_label_new (id_char); gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0); gtk_widget_show (label); sprintf (id_char, 鐖惰繘绋婭D:%d, getppid (); label = gtk_label_new (id_char); gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0); gtk_widget_show (label); pbar = gtk_progress_bar_new (); gtk_box_pack_start (GTK_BOX (vbox), pbar, FALSE, FALSE, 0); gtk_widget_show (pbar); timer = gtk_timeout_add (100, progress_timeout, pbar); button = gtk_button_new_with_label (close); g_signal_connect_swapped (G_OBJECT (button), clicked, G_CALLBACK (gtk_widget_destroy), window); gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0); GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT); gtk_widget_grab_default (button); gtk_widget_show (button); gtk_widget_show (window); gtk_main ();int main(int argc, char *argv) int pid = fork (); if (pid 0)printf (error!n); else if (pid = 0) int pid = fork (); if (pid 0) printf (error!n);else if (pid = 0) show (argc,argv,process3);else show (argc,argv,process2); elseshow (argc,argv,process1); 【实验二】：Mydev.c:#include #include #include #include #include #include #define BUFFER_SIZE 2048MODULE_LICENSE(GPL);static int mydev_major = 0;unsigned char mybufferBUFFER_SIZE=cs0905 U200915015 xc;int Device_Open=0;static ssize_t my_open(struct inode *inode,struct file *file)static int counter=0;if(Device_Open)return -EBUSY;Device_Open+;printk(the device has been called %d timesn,counter+);return 0;static ssize_t my_release(struct inode *inode,struct file *file)if(Device_Open=0)return -1;elseDevice_Open=0;return 0;static ssize_t my_write (struct file *filp, const char _user *buf, size_t count,loff_t *pos) int size=count; if(sizeBUFFER_SIZE) printk(out of the max size!n);size=BUFFER_SIZE; if(copy_from_user(mybuffer,buf,sizeof(mybuffer)return -ENOMEM; return size;static ssize_t my_read(struct file *filp, char _user *buf,size_t count, loff_t *pos) int size=count; if(sizeBUFFER_SIZE) printk(out of the max size!n);size=BUFFER_SIZE; if(copy_to_user(buf, mybuffer, size) return -ENOMEM; return size;static struct file_operations mydev_fops=.read=my_read,.write=my_write,.open=my_open,.release=my_release,;static int _init mydev_init(void)int result;result=register_chrdev(0,mydev,&mydev_fops);if(result0)printk(error:can not register the devicen);return -1; if(mydev_major=0)mydev_major=result;printk(hehe,the device has been registerstatic ssize_t my_open(struct inode *inode,struct file *file)ed!n); printk(the virtual device was assigned major number %d.n,mydev_major); printk(To talk to the driver,create a dev file withn); printk(mknod/dev/my c %d 0n,mydev_major); printk(Remove the dev and the file when donen); return 0;static void _exit mydev_exit(void)unregister_chrdev(mydev_major,mydev); printk(unloading the devicen);module_init(mydev_init);module_exit(mydev_exit);test.c:#include #include #define MAXBUFF 1024#define DEVICE /dev/mydevint main(void)char buffMAXBUFF,buff2MAXBUFF;int fd;printf(Now driver test beginning.n);printf(Open device.n);if (fd=open(DEVICE,O_RDWR)0)printf(Open device is failedn);return 1;elseread(fd,buff,MAXBUFF);printf(the content of device is readed:n%sn,buff);printf(input something to device whatever you want:n);scanf(%s,buff);printf(write your input to device.n);write(fd,buff,MAXBUFF);read(fd,buff2,MAXBUFF);printf(the content of device is readed again:n%sn,buff2);printf(the driver test is ended successfuln);return 0;【实验三】：#include #include #include #include #include #include #include #include #include #include #include #define DENSITY 100 #define PMAX 100 enumNAME_COLUMN, PID_COLUMN, CPU_COLUMN,;enumMOD_COLUMN,DEPEND_COLUMN,NM_COLUMNS;GtkWidget *window;GtkWidget *main_vbox;GtkAccelGroup *accel_group;GtkItemFactory *item_factory;GtkWidget *menubar;GtkWidget *notebook;GtkWidget *label;GtkWidget *mem_label;GtkWidget *swap_label;GtkWidget *vbox;GtkWidget *cpu_draw_area;GtkWidget *mem_draw_area;GtkWidget *frame;GtkWidget *info_label;GString *info;GtkWidget *status_bar;GtkWidget *scrolled_window;GtkListStore *process_store;GtkWidget *ptree_view;GtkWidget *mtree_view;GtkCellRenderer *renderer; *column; GtkWidget *hbox;GtkWidget *prefresh_button,*pdelete_button; gdouble fuser = 0;gdouble ftotal = 0;gdouble total = 0; gdouble pfuserPMAX; gdouble rate = 0;gint cpu_graphDENSITY;mem_graphDENSITY;GdkPixmap *mgraph = NULL;void destroy_window (GtkWidget *, gpointer);void sys_shutdown(GtkWidget *, gpointer);void sys_reboot (GtkWidget *, gpointer);void sys_halt (GtkWidget *, gpointer);void about_author (GtkWidget *, gpointer);gboolean handle_timeout (gpointer data);gboolean load_graph_refresh (GtkWidget *widget);gboolean get_cpu_rate (gpointer data);void create_sys_status_page (void);void create_process_page (void);void create_sys_info_page (void);void get_status_info (void);void get_process_info (GtkListStore *);void get_cpu_info (GString *);void get_os_info (GString *);void draw_cpu_load_graph (void);void draw_mem_load_graph (void);void prefresh_button_clicked (gpointer data);void pdelete_button_clicked (gpointer data);void mrefresh_button_clicked (gpointer data);void mdelete_button_clicked (gpointer data);gboolean cpu_configure_event (GtkWidget *, GdkEventConfigure *, gpointer);gboolean cpu_expose_event (GtkWidget *, GdkEventExpose *, gpointer);gboolean mem_configure_event (GtkWidget *, GdkEventConfigure *, gpointer);gboolean mem_expose_event (GtkWidget *, GdkEventExpose *, gpointer);void show_dialog (gchar *, gchar *);static GtkItemFactoryEntry menu_items = /_File, NULL, NULL, 0, ,/File/Quit, Q, destroy_window, 0, ,/_Option, NULL, NULL, 0, ,/Option/Shutdown, U, sys_shutdown, 0 ,/Option/Reboot, R, sys_reboot, 0 ,/Option/Halt, H, sys_halt, 0 ,;static gint nmenu_items = sizeof (menu_items) / sizeof (menu_items0); int main (int argc, char *argv) gtk_set_locale (); gtk_init (&argc, &argv); memset (cpu_graph, 50, sizeof (cpu_graph); sizeof(cpu_graph)鐨勭闂? memset (mem_graph, 50, sizeof (mem_graph); memset (pfuser, 0 ,sizeof (pfuser); window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_window_set_title (GTK_WINDOW (window), Linux System Moniter); gtk_window_set_default_size (GTK_WINDOW (window), 400, 300); gtk_window_set_resizable (GTK_WINDOW (window), FALSE); g_signal_connect(G_OBJECT(window), destroy, G_CALLBACK(destroy_window), NULL); main_vbox =gtk_vbox_new (FALSE, 0); gtk_widget_show (main_vbox); gtk_container_add (GTK_CONTAINER (window), main_vbox); accel_group = gtk_accel_group_new (); item_factory = gtk_item_factory_new (GTK_TYPE_MENU_BAR, , accel_group); gtk_item_factory_create_items (item_factory, nmenu_items, menu_items, NULL); gtk_window_add_accel_group (GTK_WINDOW (window), accel_group); menubar = gtk_item_factory_get_widget (item_factory, ); gtk_widget_show (menubar); gtk_box_pack_start (GTK_BOX (main_vbox), menubar, FALSE, FALSE, 0); notebook = gtk_notebook_new (); gtk_widget_show (notebook); gtk_box_pack_start (GTK_BOX (main_vbox), notebook, FALSE, FALSE, 0); status_bar = gtk_statusbar_new (); gtk_widget_show (status_bar); gtk_statusbar_set_has_resize_grip (GTK_STATUSBAR (status_bar),TRUE); gtk_box_pack_start (GTK_BOX (main_vbox), status_bar, TRUE, FALSE, 0); gtk_timeout_add (2000, (GtkFunction)handle_timeout, NULL); gtk_timeout_add (1000, (GtkFunction)load_graph_refresh, NULL); gtk_timeout_add (1000, (GtkFunction)get_cpu_rate, NULL); create_process_page ();create_sys_status_page (); create_sys_info_page (); gtk_widget_show_all (window); gtk_main (); return 0;void destroy_window (GtkWidget *widget, gpointer data) gtk_main_quit ();void sys_shutdown (GtkWidget *widget, gpointer datasystem (shutdown -r now);void sys_reboot (GtkWidget *widget, gpointer data)system (reboot);void sys_halt (GtkWidget *widget, gpointer data)system (halt);gboolean handle_timeout (gpointer data) gint page_num; page_num = gtk_notebook_get_current_page (GTK_NOTEBOOK (notebook); switch (page_num) case 0:gtk_list_store_clear (process_store); get_process_info (process_store);break;default:break;return TRUE;gboolean load_graph_refresh (GtkWidget *widget) draw_cpu_load_graph (); draw_mem_load_graph (); return TRUE;gboolean get_cpu_rate ( gpointer data) int fd,i; gchar buffer256; gchar *cpu_time9; gchar *tmp; gchar *delim = ; gdouble cuser; gdouble ctotal; fd = open (/proc/stat, O_RDONLY); read (fd, buffer, sizeof (buffer); close (fd); tmp = strstr (buffer, cpu0); tmp-; *tmp = 0; cpu_time0 = strtok (buffer, delim); for (i = 1; i 9 ; i+) cpu_timei = strtok (NULL, delim); cuser = atoi (cpu_time1); ctotal = (cuser + atoi (cpu_time2) + atoi (cpu_time3) + atoi (cpu_time4); total = ctotal - ftotal; rate = (cuser - fuser) / total; fuser = cuser; ftotal = ctotal; return TRUE;void create_sys_status_page (void) vbox = gtk_vbox_new (FALSE, 0); gtk_widget_show (vbox); gtk_container_add (GTK_CONTAINER (notebook), vbox); frame = gtk_frame_new (CPU); gtk_widget_show (frame); gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0); cpu_draw_area = gtk_drawing_area_new (); gtk_widget_show (cpu_draw_area); gtk_drawing_area_size (GTK_DRAWING_AREA (cpu_draw_area), 400, 100); gtk_container_add (GTK_CONTAINER (frame), cpu_draw_area); g_signal_connect (cpu_draw_area, expose_event, G_CALLBACK (cpu_expose_event), NULL); g_signal_connect (cpu_draw_area, configure_event, G_CALLBACK (cpu_configure_event), NULL); frame = gtk_frame_new (Memory); gtk_widget_show (frame); gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 10); mem_draw_area = gtk_drawing_area_new (); gtk_widget_show (mem_draw_area); gtk_drawing_area_size (GTK_DRAWING_AREA (mem_draw_area), 400, 100); gtk_container_add (GTK_CONTAINER (frame), mem_draw_area); g_signal_connect (mem_draw_area, expose_event, G_CALLBACK (mem_expose_event), NULL); g_signal_connect (mem_draw_area, configure_event, G_CALLBACK (mem_configure_event), NULL); mem_label = gtk_label_new (); gtk_widget_show (mem_label); gtk_box_pack_start (GTK_BOX (vbox), mem_label, FALSE, FALSE, 0); swap_label = gtk_label_new ();/娣诲姞涓涓爣绛撅紝鏄剧椤甸潰浜崲浣跨敤鎯呭喌 gtk_widget_show (swap_label); gtk_box_pack_start (GTK_BOX (vbox), swap_label, FALSE, FALSE, 10); label = gtk_label_new (Status);/娣诲姞鏍囩浣滀负鏈鐨勬爣棰? gtk_widget_show (label); gtk_notebook_set_tab_label (GTK_NOTEBOOK (notebook), gtk_notebook_get_nth_page (GTK_NOTEBOOK (notebook), 1), label);/澧炲姞鍒扮瑪璁版湰涓鸿椤垫爣绛?void create_process_page (void)/鍦瑪璁版湰涓坊鍔犺繘绋嬩俊鎭殑椤甸潰 int i; gchar *col_name5 = NAME, PID , STATUS, CPU , MEMORY; vbox = gtk_vbox_new (FALSE, 0);/娣诲姞绾靛悜鐩掑瓙 gtk_widget_show (vbox); gtk_container_add (GTK_CONTAINER (notebook), vbox);/鍔犲埌绗旇鏈鍣噷 scrolled_window = gtk_scrolled_window_new (NULL, NULL);/娣诲姞婊氬姩绐楀彛鎺欢 gtk_widget_set_size_request (scrolled_window, 300, 300); gtk_widget_show (scrolled_window); gtk_box_pack_start (GTK_BOX (vbox), scrolled_window, TRUE, TRUE, 0);/杩涚淇伅 process_store = gtk_list_store_new (NP_COLUMNS,G_TYPE_STRING,G_TYPE_STRING,G_TYPE_STRING,G_TYPE_STRING,G_TYPE_STRING); ptree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (process_store); /娣诲姞tree view鎺欢锛屾樉绀鸿繘绋嬩俊鎭爲 g_object_unref (G_OBJECT (process_store);/鍑忓皯寮曠敤娆暟 gtk_widget_show (ptree_view); gtk_container_add (GTK_CONTAINER (scrolled_window), ptree_view);/灏嗚繘绋嬩俊鎭爲鍔犲埌婊氬姩绐楀彛涓? for (i = 0; i str);/鐢爣绛緄nfo_label鏄剧info鍙橀噺鐨勫瓧绗覆鍐呭 gtk_widget_show (info_label); gtk_container_add (GTK_CONTAINER(frame), info_label);/灏嗚鏍囩鍔犲埌杈规涓? frame = gtk_frame_new (OS Information:);/鏄剧鎿嶄綔绯荤粺淇伅杈规 gtk_widget_show (frame); gtk_box_pack_start (GTK_BOX (vbox), fra