/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
** File: anonfm.c
** Description: Test anonymous file map
**
** Synopsis: anonfm [options] [dirName]
**
** Options:
** -d enable debug mode
** -h display a help message
** -s <n> size of the anonymous memory map, in KBytes. default: 100KBytes.
** -C 1 Operate this process as ClientOne()
** -C 2 Operate this process as ClientTwo()
**
** anonfn.c contains two tests, corresponding to the two protocols for
** passing an anonymous file map to a child process.
**
** ServerOne()/ClientOne() tests the passing of "raw" file map; it uses
** PR_CreateProcess() [for portability of the test case] to create the
** child process, but does not use the PRProcessAttr structure for
** passing the file map data.
**
** ServerTwo()/ClientTwo() tests the passing of the file map using the
** PRProcessAttr structure.
**
*/
#include <plgetopt.h>
#include <nspr.h>
#include <
private /primpl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/*
** Test harness infrastructure
*/
PRLogModuleInfo* lm;
PRLogModuleLevel msgLevel = PR_LOG_NONE;
PRUint32 failed_already = 0;
PRIntn debug = 0;
PRIntn client = 0;
/* invoke client, style */
char dirName[512] =
"." ;
/* directory name to contain anon mapped file */
PRSize fmSize = (100 * 1024);
PRUint32 fmMode = 0600;
PRFileMapProtect fmProt = PR_PROT_READWRITE;
const char * fmEnvName =
"nsprFileMapEnvVariable" ;
/*
** Emit help text for this test
*/
static void Help(
void ) {
printf(
"anonfm [options] [dirName]\n" );
printf(
"-d -- enable debug mode\n" );
printf(
"dirName is alternate directory name. Default: . (current directory)\n" );
exit (1);
}
/* end Help() */
/*
** ClientOne() --
*/
static void ClientOne(
void ) {
PRFileMap* fm;
char * fmString;
char * addr;
PRStatus rc;
PR_LOG(lm, msgLevel, (
"ClientOne() starting" ));
fmString = PR_GetEnv(fmEnvName);
if (NULL == fmString) {
failed_already = 1;
PR_LOG(lm, msgLevel, (
"ClientOne(): PR_Getenv() failed" ));
return ;
}
PR_LOG(lm, msgLevel, (
"ClientOne(): PR_Getenv(): found: %s" , fmString));
fm = PR_ImportFileMapFromString(fmString);
if (NULL == fm) {
failed_already = 1;
PR_LOG(lm, msgLevel, (
"ClientOne(): PR_ImportFileMapFromString() failed" ));
return ;
}
PR_LOG(lm, msgLevel,
(
"ClientOne(): PR_ImportFileMapFromString(): fm: %p" , fm));
addr = PR_MemMap(fm, LL_ZERO, fmSize);
if (NULL == addr) {
failed_already = 1;
PR_LOG(lm, msgLevel,
(
"ClientOne(): PR_MemMap() failed, OSError: %d" , PR_GetOSError()));
return ;
}
PR_LOG(lm, msgLevel, (
"ClientOne(): PR_MemMap(): addr: %p" , addr));
/* write to memory map to release server */
*addr = 1;
rc = PR_MemUnmap(addr, fmSize);
PR_ASSERT(rc == PR_SUCCESS);
PR_LOG(lm, msgLevel, (
"ClientOne(): PR_MemUnap(): success" ));
rc = PR_CloseFileMap(fm);
if (PR_FAILURE == rc) {
failed_already = 1;
PR_LOG(lm, msgLevel,
(
"ClientOne(): PR_MemUnap() failed, OSError: %d" , PR_GetOSError()));
return ;
}
PR_LOG(lm, msgLevel, (
"ClientOne(): PR_CloseFileMap(): success" ));
return ;
}
/* end ClientOne() */
/*
** ClientTwo() --
*/
static void ClientTwo(
void ) { failed_already = 1; }
/* end ClientTwo() */
/*
** ServerOne() --
*/
static void ServerOne(
void ) {
PRFileMap* fm;
PRStatus rc;
PRIntn i;
char * addr;
char fmString[256];
char envBuf[256];
char * child_argv[8];
PRProcess* proc;
PRInt32 exit_status;
PR_LOG(lm, msgLevel, (
"ServerOne() starting" ));
fm = PR_OpenAnonFileMap(dirName, fmSize, fmProt);
if (NULL == fm) {
failed_already = 1;
PR_LOG(lm, msgLevel, (
"PR_OpenAnonFileMap() failed" ));
return ;
}
PR_LOG(lm, msgLevel, (
"ServerOne(): FileMap: %p" , fm));
rc = PR_ExportFileMapAsString(fm,
sizeof (fmString), fmString);
if (PR_FAILURE == rc) {
failed_already = 1;
PR_LOG(lm, msgLevel, (
"PR_ExportFileMap() failed" ));
return ;
}
/*
** put the string into the environment
*/
PR_snprintf(envBuf,
sizeof (envBuf),
"%s=%s" , fmEnvName, fmString);
putenv(envBuf);
addr = PR_MemMap(fm, LL_ZERO, fmSize);
if (NULL == addr) {
failed_already = 1;
PR_LOG(lm, msgLevel, (
"PR_MemMap() failed" ));
return ;
}
/* set initial value for client */
for (i = 0; i < (PRIntn)fmSize; i++) {
*(addr + i) = 0x00;
}
PR_LOG(lm, msgLevel, (
"ServerOne(): PR_MemMap(): addr: %p" , addr));
/*
** set arguments for child process
*/
child_argv[0] =
"anonfm" ;
child_argv[1] =
"-C" ;
child_argv[2] =
"1" ;
child_argv[3] = NULL;
proc = PR_CreateProcess(child_argv[0], child_argv, NULL, NULL);
PR_ASSERT(proc);
PR_LOG(lm, msgLevel, (
"ServerOne(): PR_CreateProcess(): proc: %x" , proc));
/*
** ClientOne() will set the memory to 1
*/
PR_LOG(lm, msgLevel, (
"ServerOne(): waiting on Client, *addr: %x" , *addr));
while (*addr == 0x00) {
if (debug) {
fprintf(stderr,
"." );
}
PR_Sleep(PR_MillisecondsToInterval(300));
}
if (debug) {
fprintf(stderr,
"\n" );
}
PR_LOG(lm, msgLevel, (
"ServerOne(): Client responded" ));
rc = PR_WaitProcess(proc, &exit_status);
PR_ASSERT(PR_FAILURE != rc);
rc = PR_MemUnmap(addr, fmSize);
if (PR_FAILURE == rc) {
failed_already = 1;
PR_LOG(lm, msgLevel, (
"PR_MemUnmap() failed" ));
return ;
}
PR_LOG(lm, msgLevel, (
"ServerOne(): PR_MemUnmap(): success" ));
rc = PR_CloseFileMap(fm);
if (PR_FAILURE == rc) {
failed_already = 1;
PR_LOG(lm, msgLevel, (
"PR_CloseFileMap() failed" ));
return ;
}
PR_LOG(lm, msgLevel, (
"ServerOne(): PR_CloseFileMap() success" ));
return ;
}
/* end ServerOne() */
/*
** ServerTwo() --
*/
static void ServerTwo(
void ) {
PR_LOG(lm, msgLevel, (
"ServerTwo(): Not implemented yet" ));
}
/* end ServerTwo() */
int main(
int argc,
char ** argv) {
{
/*
** Get command line options
*/
PLOptStatus os;
PLOptState* opt = PL_CreateOptState(argc, argv,
"hdC:" );
while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
if (PL_OPT_BAD == os) {
continue ;
}
switch (opt->option) {
case 'C' :
/* Client style */
client = atol(opt->value);
break ;
case 's' :
/* file size */
fmSize = atol(opt->value) * 1024;
break ;
case 'd' :
/* debug */
debug = 1;
msgLevel = PR_LOG_DEBUG;
break ;
case 'h' :
/* help message */
Help();
break ;
default :
strcpy(dirName, opt->value);
break ;
}
}
PL_DestroyOptState(opt);
}
lm = PR_NewLogModule(
"Test" );
/* Initialize logging */
if (client == 1) {
ClientOne();
}
else if (client == 2) {
ClientTwo();
}
else {
ServerOne();
if (failed_already) {
goto Finished;
}
ServerTwo();
}
Finished:
if (debug) {
printf(
"%s\n" , (failed_already) ?
"FAIL" :
"PASS" );
}
return ((failed_already == PR_TRUE) ? 1 : 0);
}
/* main() */
/* end anonfm.c */
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