NachOS: main.cc File Reference

00093 { 00094 int argCount; // the number of arguments 00095 // for a particular command 00096 00097 DEBUG('t', "Entering main"); 00098 00099 if (sigsetjmp(schd_jmp, 1) != 0) // entry point for the scheduler 00100 { 00101 schedule(); 00102 00103 if (!scheduler->IsEmpty()) 00104 { 00105 while(1) 00106 ; 00107 } 00108 // never gets here 00109 printf("Yikes...\n"); 00110 } 00111 else 00112 { 00113 (void) Initialize(argc, argv); 00114 00115 for (argc--, argv++; argc > 0; argc -= argCount, argv += argCount) 00116 { 00117 argCount = 1; 00118 if (!strcmp(*argv, "-z")) // print copyright 00119 printf (copyright); 00120 #ifdef USER_PROGRAM 00121 if (!strcmp(*argv, "-x")) 00122 { // run a user program 00123 ASSERT(argc > 1); 00124 StartProcess(*(argv + 1)); 00125 argCount = 2; 00126 } 00127 else if (!strcmp(*argv, "-c")) 00128 { // test the console 00129 if (argc == 1) 00130 ConsoleTest(NULL, NULL); 00131 else 00132 { 00133 ASSERT(argc > 2); 00134 ConsoleTest(*(argv + 1), *(argv + 2)); 00135 argCount = 3; 00136 } 00137 interrupt->Halt(); // once we start the console, then 00138 // Nachos will loop forever waiting 00139 // for console input 00140 } 00141 #endif // USER_PROGRAM 00142 #ifdef FILESYS 00143 if (!strcmp(*argv, "-cp")) 00144 { // copy from UNIX to Nachos 00145 ASSERT(argc > 2); 00146 Copy(*(argv + 1), *(argv + 2)); 00147 argCount = 3; 00148 } 00149 else if (!strcmp(*argv, "-p")) 00150 { // print a Nachos file 00151 ASSERT(argc > 1); 00152 Print(*(argv + 1)); 00153 argCount = 2; 00154 } else if (!strcmp(*argv, "-r")) 00155 { // remove Nachos file 00156 ASSERT(argc > 1); 00157 fileSystem->Remove(*(argv + 1)); 00158 argCount = 2; 00159 } 00160 else if (!strcmp(*argv, "-l")) 00161 { // list Nachos directory 00162 fileSystem->List(); 00163 } 00164 else if (!strcmp(*argv, "-D")) 00165 { // print entire filesystem 00166 fileSystem->Print(); 00167 } 00168 else if (!strcmp(*argv, "-t")) 00169 { // performance test 00170 PerformanceTest(); 00171 } 00172 #endif // FILESYS 00173 #ifdef NETWORK 00174 if (!strcmp(*argv, "-o")) 00175 { 00176 ASSERT(argc > 1); 00177 Delay(2); // delay for 2 seconds 00178 // to give the user time to 00179 // start up another nachos 00180 MailTest(atoi(*(argv + 1))); 00181 argCount = 2; 00182 } 00183 #endif // NETWORK 00184 } 00185 00186 currentThread = 0; 00187 timerInit(); 00188 00189 ThreadTest1(0); 00190 if (!scheduler->IsEmpty()) 00191 schedule(); // to start the threads going 00192 } 00193 00194 // returns, then the program "nachos" 00195 // will exit (as any other normal program 00196 // would). But there may be other 00197 // threads on the ready list. We switch 00198 // to those threads by saying that the 00199 // will exit (as any other normal program 00200 // would). But there may be other 00201 // threads on the ready list. We switch 00202 // to those threads by saying that the 00203 // "main" thread is finished, preventing 00204 // it from returning. 00205 return(0); // Not reached... 00206 }


Defines
#define	MAIN
Functions
void	ThreadTest1 (int)
void	Copy (char unixFile, char nachosFile)
void	Print (char *file)
void	PerformanceTest (void)
void	StartProcess (char *file)
void	ConsoleTest (char in, char out)
void	MailTest (int networkID)
int	main (int argc, char **argv)
Variables
sigjmp_buf	schd_jmp

main.cc File Reference

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation