/* 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 : 100 KBytes .
* * - 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) =
0 x00;
}
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 ==
0 x00) {
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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