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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /nsprpub/pr/src/cplus/tests/ranfile.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'nsprpub/pr/src/cplus/tests/ranfile.cpp')
-rw-r--r--nsprpub/pr/src/cplus/tests/ranfile.cpp400
1 files changed, 400 insertions, 0 deletions
diff --git a/nsprpub/pr/src/cplus/tests/ranfile.cpp b/nsprpub/pr/src/cplus/tests/ranfile.cpp
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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, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/***********************************************************************
+**
+** Contact: AOF<mailto:freier@netscape.com>
+**
+** Name: ranfile.c
+**
+** Description: Test to hammer on various components of NSPR
+** Modification History:
+** 20-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
+** The debug mode will print all of the printfs associated with this test.
+** The regress mode will be the default mode. Since the regress tool limits
+** the output to a one line status:PASS or FAIL,all of the printf statements
+** have been handled with an if (debug_mode) statement.
+** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
+** recognize the return code from tha main program.
+***********************************************************************/
+
+
+/***********************************************************************
+** Includes
+***********************************************************************/
+/* Used to get the command line option */
+#include <plgetopt.h>
+#include <prprf.h>
+#include <prio.h>
+
+#include "rccv.h"
+#include "rcthread.h"
+#include "rcfileio.h"
+#include "rclock.h"
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static PRFileDesc *output;
+static PRIntn debug_mode = 0;
+static PRIntn failed_already = 0;
+
+class HammerData
+{
+public:
+ typedef enum {
+ sg_go, sg_stop, sg_done} Action;
+ typedef enum {
+ sg_okay, sg_open, sg_close, sg_delete, sg_write, sg_seek} Problem;
+
+ virtual ~HammerData();
+ HammerData(RCLock* lock, RCCondition *cond, PRUint32 clip);
+ virtual PRUint32 Random();
+
+ Action action;
+ Problem problem;
+ PRUint32 writes;
+ RCInterval timein;
+friend class Hammer;
+private:
+ RCLock *ml;
+ RCCondition *cv;
+ PRUint32 limit;
+
+ PRFloat64 seed;
+}; /* HammerData */
+
+class Hammer: public HammerData, public RCThread
+{
+public:
+ virtual ~Hammer();
+ Hammer(RCThread::Scope scope, RCLock* lock, RCCondition *cond, PRUint32 clip);
+
+private:
+ void RootFunction();
+
+};
+
+static PRInt32 pageSize = 1024;
+static const char* baseName = "./";
+static const char *programName = "Random File";
+
+/***********************************************************************
+** PRIVATE FUNCTION: Random
+** DESCRIPTION:
+** Generate a pseudo-random number
+** INPUTS: None
+** OUTPUTS: None
+** RETURN: A pseudo-random unsigned number, 32-bits wide
+** SIDE EFFECTS:
+** Updates random seed (a static)
+** RESTRICTIONS:
+** None
+** MEMORY: NA
+** ALGORITHM:
+** Uses the current interval timer value, promoted to a 64 bit
+** float as a multiplier for a static residue (which begins
+** as an uninitialized variable). The result is bits [16..48)
+** of the product. Seed is then updated with the return value
+** promoted to a float-64.
+***********************************************************************/
+PRUint32 HammerData::Random()
+{
+ PRUint32 rv;
+ PRUint64 shift;
+ RCInterval now = RCInterval(RCInterval::now);
+ PRFloat64 random = seed * (PRFloat64)((PRIntervalTime)now);
+ LL_USHR(shift, *((PRUint64*)&random), 16);
+ LL_L2UI(rv, shift);
+ seed = (PRFloat64)rv;
+ return rv;
+} /* HammerData::Random */
+
+Hammer::~Hammer() { }
+
+Hammer::Hammer(
+ RCThread::Scope scope, RCLock* lock, RCCondition *cond, PRUint32 clip):
+ HammerData(lock, cond, clip), RCThread(scope, RCThread::joinable, 0) { }
+
+HammerData::~HammerData() { }
+
+HammerData::HammerData(RCLock* lock, RCCondition *cond, PRUint32 clip)
+{
+ ml = lock;
+ cv = cond;
+ writes = 0;
+ limit = clip;
+ seed = 0x58a9382;
+ action = HammerData::sg_go;
+ problem = HammerData::sg_okay;
+ timein = RCInterval(RCInterval::now);
+} /* HammerData::HammerData */
+
+
+/***********************************************************************
+** PRIVATE FUNCTION: Hammer::RootFunction
+** DESCRIPTION:
+** Hammer on the file I/O system
+** INPUTS: A pointer to the thread's private data
+** OUTPUTS: None
+** RETURN: None
+** SIDE EFFECTS:
+** Creates, accesses and deletes a file
+** RESTRICTIONS:
+** (Currently) must have file create permission in "/usr/tmp".
+** MEMORY: NA
+** ALGORITHM:
+** This function is a root of a thread
+** 1) Creates a (hopefully) unique file in /usr/tmp/
+** 2) Writes a zero to a random number of sequential pages
+** 3) Closes the file
+** 4) Reopens the file
+** 5) Seeks to a random page within the file
+** 6) Writes a one byte on that page
+** 7) Repeat steps [5..6] for each page in the file
+** 8) Close and delete the file
+** 9) Repeat steps [1..8] until told to stop
+** 10) Notify complete and return
+***********************************************************************/
+void Hammer::RootFunction()
+{
+ PRUint32 index;
+ RCFileIO file;
+ char filename[30];
+ const char zero = 0;
+ PRStatus rv = PR_SUCCESS;
+
+ limit = (Random() % limit) + 1;
+
+ (void)sprintf(filename, "%ssg%04p.dat", baseName, this);
+
+ if (debug_mode) PR_fprintf(output, "Starting work on %s\n", filename);
+
+ while (PR_TRUE)
+ {
+ PRUint64 bytes;
+ PRUint32 minor = (Random() % limit) + 1;
+ PRUint32 random = (Random() % limit) + 1;
+ PRUint32 pages = (Random() % limit) + 10;
+ while (minor-- > 0)
+ {
+ problem = sg_okay;
+ if (action != sg_go) goto finished;
+ problem = sg_open;
+ rv = file.Open(filename, PR_RDWR|PR_CREATE_FILE, 0666);
+ if (PR_FAILURE == rv) goto finished;
+ for (index = 0; index < pages; index++)
+ {
+ problem = sg_okay;
+ if (action != sg_go) goto close;
+ problem = sg_seek;
+ bytes = file.Seek(pageSize * index, RCFileIO::set);
+ if (bytes != pageSize * index) goto close;
+ problem = sg_write;
+ bytes = file.Write(&zero, sizeof(zero));
+ if (bytes <= 0) goto close;
+ writes += 1;
+ }
+ problem = sg_close;
+ rv = file.Close();
+ if (rv != PR_SUCCESS) goto purge;
+
+ problem = sg_okay;
+ if (action != sg_go) goto purge;
+
+ problem = sg_open;
+ rv = file.Open(filename, PR_RDWR, 0666);
+ if (PR_FAILURE == rv) goto finished;
+ for (index = 0; index < pages; index++)
+ {
+ problem = sg_okay;
+ if (action != sg_go) goto close;
+ problem = sg_seek;
+ bytes = file.Seek(pageSize * index, RCFileIO::set);
+ if (bytes != pageSize * index) goto close;
+ problem = sg_write;
+ bytes = file.Write(&zero, sizeof(zero));
+ if (bytes <= 0) goto close;
+ writes += 1;
+ random = (random + 511) % pages;
+ }
+ problem = sg_close;
+ rv = file.Close();
+ if (rv != PR_SUCCESS) goto purge;
+ problem = sg_delete;
+ rv = file.Delete(filename);
+ if (rv != PR_SUCCESS) goto finished;
+ }
+ }
+
+close:
+ (void)file.Close();
+purge:
+ (void)file.Delete(filename);
+finished:
+ RCEnter scope(ml);
+ action = HammerData::sg_done;
+ cv->Notify();
+
+ if (debug_mode) PR_fprintf(output, "Ending work on %s\n", filename);
+
+ return;
+} /* Hammer::RootFunction */
+
+static Hammer* hammer[100];
+/***********************************************************************
+** PRIVATE FUNCTION: main
+** DESCRIPTION:
+** Hammer on the file I/O system
+** INPUTS: The usual argc and argv
+** argv[0] - program name (not used)
+** argv[1] - the number of virtual_procs to execute the major loop
+** argv[2] - the number of threads to toss into the batch
+** argv[3] - the clipping number applied to randoms
+** default values: max_virtual_procs = 2, threads = 10, limit = 57
+** OUTPUTS: None
+** RETURN: None
+** SIDE EFFECTS:
+** Creates, accesses and deletes lots of files
+** RESTRICTIONS:
+** (Currently) must have file create permission in "/usr/tmp".
+** MEMORY: NA
+** ALGORITHM:
+** 1) Fork a "Thread()"
+** 2) Wait for 'interleave' seconds
+** 3) For [0..'threads') repeat [1..2]
+** 4) Mark all objects to stop
+** 5) Collect the threads, accumulating the results
+** 6) For [0..'max_virtual_procs') repeat [1..5]
+** 7) Print accumulated results and exit
+**
+** Characteristic output (from IRIX)
+** Random File: Using max_virtual_procs = 2, threads = 10, limit = 57
+** Random File: [min [avg] max] writes/sec average
+***********************************************************************/
+PRIntn main (PRIntn argc, char *argv[])
+{
+ RCLock ml;
+ PLOptStatus os;
+ RCCondition cv(&ml);
+ PRUint32 writesMax = 0, durationTot = 0;
+ RCThread::Scope thread_scope = RCThread::local;
+ PRUint32 writes, writesMin = 0x7fffffff, writesTot = 0;
+ PRIntn active, poll, limit = 0, max_virtual_procs = 0, threads = 0, virtual_procs;
+ RCInterval interleave(RCInterval::FromMilliseconds(10000)), duration(0);
+
+ const char *where[] = {"okay", "open", "close", "delete", "write", "seek"};
+
+ PLOptState *opt = PL_CreateOptState(argc, argv, "Gdl:t:i:");
+ while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+ {
+ if (PL_OPT_BAD == os) continue;
+ switch (opt->option)
+ {
+ case 0:
+ baseName = opt->value;
+ break;
+ case 'G': /* global threads */
+ thread_scope = RCThread::global;
+ break;
+ case 'd': /* debug mode */
+ debug_mode = 1;
+ break;
+ case 'l': /* limiting number */
+ limit = atoi(opt->value);
+ break;
+ case 't': /* number of threads */
+ threads = atoi(opt->value);
+ break;
+ case 'i': /* iteration counter */
+ max_virtual_procs = atoi(opt->value);
+ break;
+ default:
+ break;
+ }
+ }
+ PL_DestroyOptState(opt);
+ output = PR_GetSpecialFD(PR_StandardOutput);
+
+ /* main test */
+
+ cv.SetTimeout(interleave);
+
+ if (max_virtual_procs == 0) max_virtual_procs = 2;
+ if (limit == 0) limit = 57;
+ if (threads == 0) threads = 10;
+
+ if (debug_mode) PR_fprintf(output,
+ "%s: Using %d virtual processors, %d threads, limit = %d and %s threads\n",
+ programName, max_virtual_procs, threads, limit,
+ (thread_scope == RCThread::local) ? "LOCAL" : "GLOBAL");
+
+ for (virtual_procs = 0; virtual_procs < max_virtual_procs; ++virtual_procs)
+ {
+ if (debug_mode)
+ PR_fprintf(output,
+ "%s: Setting number of virtual processors to %d\n",
+ programName, virtual_procs + 1);
+ RCPrimordialThread::SetVirtualProcessors(virtual_procs + 1);
+ for (active = 0; active < threads; active++)
+ {
+ hammer[active] = new Hammer(thread_scope, &ml, &cv, limit);
+ hammer[active]->Start(); /* then make it roll */
+ RCThread::Sleep(interleave); /* start them slowly */
+ }
+
+ /*
+ * The last thread started has had the opportunity to run for
+ * 'interleave' seconds. Now gather them all back in.
+ */
+ {
+ RCEnter scope(&ml);
+ for (poll = 0; poll < threads; poll++)
+ {
+ if (hammer[poll]->action == HammerData::sg_go) /* don't overwrite done */
+ hammer[poll]->action = HammerData::sg_stop; /* ask him to stop */
+ }
+ }
+
+ while (active > 0)
+ {
+ for (poll = 0; poll < threads; poll++)
+ {
+ ml.Acquire();
+ while (hammer[poll]->action < HammerData::sg_done) cv.Wait();
+ ml.Release();
+
+ if (hammer[poll]->problem == HammerData::sg_okay)
+ {
+ duration = RCInterval(RCInterval::now) - hammer[poll]->timein;
+ writes = hammer[poll]->writes * 1000 / duration;
+ if (writes < writesMin) writesMin = writes;
+ if (writes > writesMax) writesMax = writes;
+ writesTot += hammer[poll]->writes;
+ durationTot += duration;
+ }
+ else
+ {
+ if (debug_mode) PR_fprintf(output,
+ "%s: test failed %s after %ld seconds\n",
+ programName, where[hammer[poll]->problem], duration);
+ else failed_already=1;
+ }
+ active -= 1; /* this is another one down */
+ (void)hammer[poll]->Join();
+ hammer[poll] = NULL;
+ }
+ }
+ if (debug_mode) PR_fprintf(output,
+ "%s: [%ld [%ld] %ld] writes/sec average\n",
+ programName, writesMin,
+ writesTot * 1000 / durationTot, writesMax);
+ }
+
+ failed_already |= (PR_FAILURE == RCPrimordialThread::Cleanup());
+ PR_fprintf(output, "%s\n", (failed_already) ? "FAIL\n" : "PASS\n");
+ return failed_already;
+} /* main */