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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* File: fdcach.c
* Description:
* This test verifies that the fd cache and stack are working
* correctly.
*/
#include "nspr.h"
#include <stdio.h>
#include <stdlib.h>
/*
* Define ORDER_PRESERVED if the implementation of PR_SetFDCacheSize
* preserves the ordering of the fd's when moving them between the
* cache and the stack.
*/
#define ORDER_PRESERVED 1
/*
* NUM_FDS must be <= FD_CACHE_SIZE.
*/
#define FD_CACHE_SIZE 1024
#define NUM_FDS 20
int main(int argc, char **argv)
{
int i;
PRFileDesc *fds[NUM_FDS];
PRFileDesc *savefds[NUM_FDS];
int numfds = sizeof(fds)/sizeof(fds[0]);
/*
* Switch between cache and stack when they are empty.
* Then start with the fd cache.
*/
PR_SetFDCacheSize(0, FD_CACHE_SIZE);
PR_SetFDCacheSize(0, 0);
PR_SetFDCacheSize(0, FD_CACHE_SIZE);
/* Add some fd's to the fd cache. */
for (i = 0; i < numfds; i++) {
savefds[i] = PR_NewTCPSocket();
if (NULL == savefds[i]) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
}
for (i = 0; i < numfds; i++) {
if (PR_Close(savefds[i]) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
/*
* Create some fd's. These fd's should come from
* the fd cache. Verify the FIFO ordering of the fd
* cache.
*/
for (i = 0; i < numfds; i++) {
fds[i] = PR_NewTCPSocket();
if (NULL == fds[i]) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
if (fds[i] != savefds[i]) {
fprintf(stderr, "fd cache malfunctioned\n");
exit(1);
}
}
/* Put the fd's back to the fd cache. */
for (i = 0; i < numfds; i++) {
if (PR_Close(savefds[i]) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
/* Switch to the fd stack. */
PR_SetFDCacheSize(0, 0);
/*
* Create some fd's. These fd's should come from
* the fd stack.
*/
for (i = 0; i < numfds; i++) {
fds[i] = PR_NewTCPSocket();
if (NULL == fds[i]) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
#ifdef ORDER_PRESERVED
if (fds[i] != savefds[numfds-1-i]) {
fprintf(stderr, "fd stack malfunctioned\n");
exit(1);
}
#else
savefds[numfds-1-i] = fds[i];
#endif
}
/* Put the fd's back to the fd stack. */
for (i = 0; i < numfds; i++) {
if (PR_Close(savefds[i]) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
/*
* Now create some fd's and verify the LIFO ordering of
* the fd stack.
*/
for (i = 0; i < numfds; i++) {
fds[i] = PR_NewTCPSocket();
if (NULL == fds[i]) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
if (fds[i] != savefds[numfds-1-i]) {
fprintf(stderr, "fd stack malfunctioned\n");
exit(1);
}
}
/* Put the fd's back to the fd stack. */
for (i = 0; i < numfds; i++) {
if (PR_Close(savefds[i]) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
/* Switch to the fd cache. */
PR_SetFDCacheSize(0, FD_CACHE_SIZE);
for (i = 0; i < numfds; i++) {
fds[i] = PR_NewTCPSocket();
if (NULL == fds[i]) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
#ifdef ORDER_PRESERVED
if (fds[i] != savefds[i]) {
fprintf(stderr, "fd cache malfunctioned\n");
exit(1);
}
#else
savefds[i] = fds[i];
#endif
}
for (i = 0; i < numfds; i++) {
if (PR_Close(savefds[i]) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
for (i = 0; i < numfds; i++) {
fds[i] = PR_NewTCPSocket();
if (NULL == fds[i]) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
if (fds[i] != savefds[i]) {
fprintf(stderr, "fd cache malfunctioned\n");
exit(1);
}
}
for (i = 0; i < numfds; i++) {
if (PR_Close(savefds[i]) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
/* Switch to the fd stack. */
PR_SetFDCacheSize(0, 0);
for (i = 0; i < numfds; i++) {
fds[i] = PR_NewTCPSocket();
if (NULL == fds[i]) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
#ifdef ORDER_PRESERVED
if (fds[i] != savefds[numfds-1-i]) {
fprintf(stderr, "fd stack malfunctioned\n");
exit(1);
}
#else
savefds[numfds-1-i];
#endif
}
for (i = 0; i < numfds; i++) {
if (PR_Close(savefds[i]) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
for (i = 0; i < numfds; i++) {
fds[i] = PR_NewTCPSocket();
if (NULL == fds[i]) {
fprintf(stderr, "PR_NewTCPSocket failed\n");
exit(1);
}
if (fds[i] != savefds[numfds-1-i]) {
fprintf(stderr, "fd stack malfunctioned\n");
exit(1);
}
}
for (i = 0; i < numfds; i++) {
if (PR_Close(savefds[i]) == PR_FAILURE) {
fprintf(stderr, "PR_Close failed\n");
exit(1);
}
}
PR_Cleanup();
printf("PASS\n");
return 0;
}
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