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/* -*- 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: 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 */