зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
2.9 KiB
C
107 строки
2.9 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nspr.h"
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef _WIN32
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#include <windows.h>
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#endif
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#define TEST_FILE_NAME "m:\\bigfile3.txt"
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#define MESSAGE "Hello world!"
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#define MESSAGE_SIZE 13
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int main(int argc, char **argv)
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{
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PRFileDesc *fd;
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PRInt64 offset, position;
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PRInt32 nbytes;
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char buf[MESSAGE_SIZE];
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#ifdef _WIN32
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HANDLE hFile;
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LARGE_INTEGER li;
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#endif /* _WIN32 */
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LL_I2L(offset, 1);
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LL_SHL(offset, offset, 32);
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#ifdef _WIN32
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hFile = CreateFile(TEST_FILE_NAME, GENERIC_WRITE, 0, NULL,
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CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hFile == INVALID_HANDLE_VALUE) {
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fprintf(stderr, "CreateFile failed\n");
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exit(1);
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}
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li.QuadPart = offset;
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li.LowPart = SetFilePointer(hFile, li.LowPart, &li.HighPart, FILE_BEGIN);
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if (li.LowPart == 0xFFFFFFFF && GetLastError() != NO_ERROR) {
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fprintf(stderr, "SetFilePointer failed\n");
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exit(1);
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}
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PR_ASSERT(li.QuadPart == offset);
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strcpy(buf, MESSAGE);
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if (WriteFile(hFile, buf, sizeof(buf), &nbytes, NULL) == 0) {
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fprintf(stderr, "WriteFile failed\n");
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exit(1);
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}
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PR_ASSERT(nbytes == sizeof(buf));
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if (CloseHandle(hFile) == 0) {
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fprintf(stderr, "CloseHandle failed\n");
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exit(1);
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}
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#endif /* _WIN32 */
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memset(buf, 0, sizeof(buf));
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fd = PR_Open(TEST_FILE_NAME, PR_RDONLY, 0666);
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if (fd == NULL) {
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fprintf(stderr, "PR_Open failed\n");
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exit(1);
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}
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position = PR_Seek64(fd, offset, PR_SEEK_SET);
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if (!LL_GE_ZERO(position)) {
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fprintf(stderr, "PR_Seek64 failed\n");
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exit(1);
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}
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PR_ASSERT(LL_EQ(position, offset));
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nbytes = PR_Read(fd, buf, sizeof(buf));
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if (nbytes != sizeof(buf)) {
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fprintf(stderr, "PR_Read failed\n");
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exit(1);
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}
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if (strcmp(buf, MESSAGE)) {
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fprintf(stderr, "corrupt data:$%s$\n", buf);
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exit(1);
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}
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if (PR_Close(fd) == PR_FAILURE) {
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fprintf(stderr, "PR_Close failed\n");
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exit(1);
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}
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if (PR_Delete(TEST_FILE_NAME) == PR_FAILURE) {
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fprintf(stderr, "PR_Delete failed\n");
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exit(1);
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}
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printf("PASS\n");
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return 0;
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}
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