/*

 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 * Some file manipulation via STDIO

 * 

 *

 */

 #include <stdlib.h>	/* definition of exit() */

 #include <stdio.h>

 #include <errno.h>

 #include <string.h>

 #include <unistd.h>	/* for getcwd */

 #include <sys/fcntl.h>	/* for O_RDONLY */

 #include "CTEST.H"

 test_Data;

 char *poem[] = {

     "I wandered lonely as a cloud\n",

     "That floats on high o'er hill and vale\n",

     0

 };

 char *extraline = "Something something daffodils";

 char *finalpoem = 

     "I wandered lonely as a cloud\n"

     "That floats on high o'er hill and vale\n"

     "Something something daffodils";

 char* filename = "c:\\tfiles.txt";

 /**

 @SYMTestCaseID          SYSLIB-STDLIB-CT-1055

 @SYMTestCaseDesc	    Tests for file manipulation operations 

 @SYMTestPriority 	    High

 @SYMTestActions  	    Create a new file and write some text into it,check for errors

                         Open a file for appending,close and open to read back the file.Check for errors

 @SYMTestExpectedResults Test must not fail

 @SYMREQ                 REQ0000

 */		

 void daffodils()

 	{

 	FILE *in, *out;

 	char *cp, buf[256];

 	int n, err;

 	test_Next("Writing simple text file");

 	out = fopen(filename, "w");

 	test(out != 0); 

 	for (n=0; poem[n]; n++)

 	    {

 	    err=fputs(poem[n], out);

 		test(err>=0);

 	    }

 	fclose(out);

 	/* 2. Open a file for appending */

 	test_Next("Open file for appending");

 	out = fopen(filename, "a");

 	test(out != 0);

 	n = fwrite(extraline, 1, strlen(extraline), out);

 	test(n == (int)strlen(extraline));

 	fclose(out);

 	/* 3. Read back the file */

 	test_Next("Read back the file using fread");

 	in = fopen(filename, "r");

 	test(in != 0);

 	cp = finalpoem;

 	do

 	    {

 	    n = fread(buf, 1, 17, in);

 	    test(n >= 0);

 		if (n>0)

 			test(strncmp(buf,cp,n)==0);

 		cp += n;

 	    }

 	while (!feof(in));

 	fclose(in);

 	/* 4. Read back the file a line at a time */

 	test_Next("Read back the file using fgets");

 	in = fopen(filename, "r");

 	test(in != 0);

 	n = 0;

 	do

 	    {

 	    cp = fgets(buf, sizeof(buf), in);

 	    test(cp != NULL);

 		if (poem[n])

 			{

 			test(strcmp(cp,poem[n])==0);

 			n++;

 			}

 		else

 			test(strcmp(cp,extraline)==0);

 	    }

 	while (!feof(in));

 	fclose(in);

 	}

 /**

 @SYMTestCaseID          SYSLIB-STDLIB-CT-1056

 @SYMTestCaseDesc	    Tests for maximum files open and close operations

 @SYMTestPriority 	    High

 @SYMTestActions  	    Open a file 100 times and close them in different orders.Tests for the error code. 

 @SYMTestExpectedResults Test must not fail

 @SYMREQ                 REQ0000

 */		

 #define NFILES 100

 void maxfiles()

 	{

 	int fids[NFILES];

 	int i,n;

 	test_Next("Open file 100 times, close in reverse order");

 	for (i=0; i<NFILES; i++)

 		{

 		fids[i] = open(filename, O_RDONLY, 0666);

 		test(fids[i]>=0);

 		}

 	for (i=NFILES-1; i>=0; i--)

 		{

 		close(fids[i]);

 		}

 	test_Next("Open file 100 times, close in same order");

 	for (i=0; i<NFILES; i++)

 		{

 		fids[i] = open(filename, O_RDONLY, 0666);

 		test(fids[i]>=0);

 		}

 	for (i=0; i<NFILES; i++)

 		{

 		close(fids[i]);

 		}

 	test_Next("Open file 100 times, close in mod 7 order");

 	for (i=0; i<NFILES; i++)

 		{

 		fids[i] = open(filename, O_RDONLY, 0666);

 		test(fids[i]>=0);

 		}

 	for (i=0,n=0; i<NFILES; i++)

 		{

 		close(fids[n]);

 		n += 7;

 		if (n >= NFILES)

 			n -= NFILES;

 		}

 	}

 int close_console=0;

 void allTests()

 	{

 	daffodils();

 	maxfiles();

 	if (close_console)

 		{

 		test_Close();

 		close(0);

 		close(1);

 		close(2);

 		}

 	}

 int main()

 	{

 	void* client;

 	int err;

 	test_Title("TFILES");

 	allTests();

 	test_Next("Do it again using the CPosixServer (for them, not me)");

 	close_console=1;

 	start_posix_server();	/* calls SpawnPosixServer from C++ code */

 	client=create_thread(allTests, "TFILES tests");

 	test(client!=0);

 	start_thread(client);

 	err=wait_for_thread(client);

 	test(err==0);

 	test_Close();

 	return 0;

 	}