/* -*- 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 */