72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
/*
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* Copyright (c) 2014 by Matthias Noack, Zuse Institute Berlin
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*
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* Licensed under the BSD License, see LICENSE file for details.
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*
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*/
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#include <iostream>
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#include <cstdio>
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#include <cstring>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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using namespace std;
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int main(int argc, char* argv[]) {
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const char default_path[] = "/xtreemfs/temp_b.file";
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const char* path = default_path;
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// take path from command line if specified
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if (argc > 1) {
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path = argv[1];
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}
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// open() file
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std::cout << "TEST: open()" << std::endl;
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//FILE* file_a = std::fopen("/xtreemfs/demo/temp_a.file", "w");
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int file_b = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0777);
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//int file_b = open("/xtreemfs/demo/temp.file", O_WRONLY | O_CREAT); // this is wrong by open specification, mode is not set, but O_CREAT is
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const char data_to_write[] = "Hello World!";
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char data_to_read[256] = "";
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ssize_t write_ret = write(file_b, (void*)data_to_write, sizeof(data_to_write));
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lseek(file_b, 0, SEEK_SET);
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// close() file
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close(file_b);
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// open() same file for reading
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file_b = open(path, O_RDONLY, 0);
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ssize_t read_ret = read(file_b, (void*)data_to_read, sizeof(data_to_write));
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// close() file
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std::cout << "TEST: close()" << std::endl;
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//std::fclose(file_a);
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close(file_b);
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// compare written and read
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if (0 == std::strcmp(data_to_write, data_to_read))
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std::cout << "PASS" << std::endl;
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else
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std::cout << "FAIL" << std::endl;
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// stat(), fstat()
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// access()
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// ftruncate()
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// getcwd()
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std::cout << "TEST: done()" << std::endl;
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return 0;
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}
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