63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
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/*
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Copyright (C) 2016-2019 The University of Notre Dame
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This software is distributed under the GNU General Public License.
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See the file LICENSE for details.
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*/
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#include "library/syscalls.h"
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#include "kernel/syscall.h"
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#include "kernel/stats.h"
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#include "library/string.h"
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#include "library/errno.h"
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int main(int argc, const char *argv[])
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{
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if (argc <= 1) {
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printf("No program to run\n");
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return 1;
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}
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unsigned int startTime;
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syscall_system_time(&startTime);
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int pid;
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int fd = syscall_open_file(KNO_STDDIR,argv[1],0,0);
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if(fd>=0) {
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pid = syscall_process_fork();
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if (pid == 0) { // child
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syscall_process_exec(fd, argc-1, &argv[1]);
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printf("exec failed\n");
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return 1;
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} else if (pid < 0) {
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printf("fork failed\n");
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return -1;
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}
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} else {
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printf("couldn't find %s: %s\n",argv[1],strerror(fd));
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return 1;
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}
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/* parent */
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struct process_info info;
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syscall_process_wait(&info, -1);
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unsigned int timeElapsed;
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syscall_system_time(&timeElapsed);
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timeElapsed -= startTime;
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struct process_stats stat;
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syscall_process_stats(&stat, pid);
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printf("Process %u exited with status %d\n", info.pid, info.exitcode);
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printf("Time elapsed: %d:%d:%d\n", timeElapsed/3600, (timeElapsed%3600)/60, timeElapsed % 60);
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printf("%d blocks read, %d blocks written\n", stat.blocks_read, stat.blocks_written);
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printf("%d bytes read, %d bytes written\n", stat.bytes_read, stat.bytes_written);
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printf("System calls used:\n");
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for (int i = 0; i < MAX_SYSCALL; i++) {
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if (stat.syscall_count[i]) {
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printf("Syscall %d: %u\n", i, stat.syscall_count[i]);
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}
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}
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return 0;
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}
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