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fault injection tool for stasis

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This commit is contained in:
Ashok Sudarsanam 2009-04-21 18:34:46 +00:00
parent 4bc6d083c6
commit 2533dd921b
6 changed files with 845 additions and 0 deletions
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14
test/stasis/fault_injection/CMakeLists.txt Normal file
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ADD_EXECUTABLE(check_faultInjection fitest.c fisubject.c fichecker.c)
TARGET_LINK_LIBRARIES(check_faultInjection ${COMMON_LIBRARIES})
SET_TARGET_PROPERTIES(check_faultInjection PROPERTIES
PREFIX ""
LINK_FLAGS -Wl,--wrap,malloc,--wrap,fwrite,--wrap,pwrite,--wrap,pwrite64
)
CONFIGURE_FILE(
${CMAKE_CURRENT_SOURCE_DIR}/config.txt
${CMAKE_CURRENT_BINARY_DIR}/config.txt
COPYONLY
)
ADD_TEST(check_faultInjection check_faultInjection)

39
test/stasis/fault_injection/config.txt Normal file
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num_iterations = 5
num_threads = 1
ops_per_thread = 42000
ops_per_transaction = 5
mallocs_before_failure = 5000
log_writes_before_failure = 0 (0)
page_writes_before_failure = 0 (0)
num_threads = 1
ops_per_thread = 30000
ops_per_transaction = 10
mallocs_before_failure = 0
log_writes_before_failure = 20000 (35)
page_writes_before_failure = 0 (0)
num_threads = 1
ops_per_thread = 32000
ops_per_transaction = 20
mallocs_before_failure = 0
log_writes_before_failure = 0 (0)
page_writes_before_failure = 800 (55)
num_threads = 1
ops_per_thread = 33000
ops_per_transaction = 13
mallocs_before_failure = 10000
log_writes_before_failure = 0 (0)
page_writes_before_failure = 0 (0)
num_threads = 1
ops_per_thread = 10000
ops_per_transaction = 33
mallocs_before_failure = 0
log_writes_before_failure = 0 (0)
page_writes_before_failure = 0 (0)

132
test/stasis/fault_injection/fichecker.c Normal file
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/*---
This software is copyrighted by the Regents of the University of
California and Ashok Sudarsanam. The following terms apply to all files
associated with the software unless explicitly disclaimed in
individual files.
The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose,
provided that existing copyright notices are retained in all copies
and that this notice is included verbatim in any distributions. No
written agreement, license, or royalty fee is required for any of the
authorized uses. Modifications to this software may be copyrighted by
their authors and need not follow the licensing terms described here,
provided that the new terms are clearly indicated on the first page of
each file where they apply.
IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND
THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights" in
the software and related documentation as defined in the Federal
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you are
acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
authors grant the U.S. Government and others acting in its behalf
permission to use and distribute the software in accordance with the
terms specified in this license.
---*/
#include "fitest.h"
int
runChecker() {
int hashVal, fd, i, xid, k;
int *commitTable = NULL, *insertTable = NULL, tableLength;
int *key, **bkey, *value, **bvalue;
int keySize, valueSize;
lladd_hash_iterator* hashIter;
FILE *commitFile, *insertFile;
printf("\tRunning Checker Process\n"); fflush(stdout);
readGlobalsFromSharedBuffer();
/* Read in the hash table recordid from disk. */
fd = open("recordid.txt", O_RDONLY, 0777);
read(fd, (char*) &hashTable, sizeof(recordid));
close(fd);
/* Open the insert and commit log files. */
insertFile = fopen("inserts.txt", "r");
commitFile = fopen("commits.txt", "r");
/* Allocate two tables to keep track of all hash table inserts that were
* possibly committed (insert table) and definitely committed (commit table).
*/
tableLength = baseKey + (numThreads * opsPerThread);
insertTable = (int*) calloc(tableLength, sizeof(int));
commitTable = (int*) calloc(tableLength, sizeof(int));
/* Read all the entries from the insert log (commit log) and insert into the
* insert table (commit table).
*/
while (fscanf(insertFile, "%d\n", &hashVal) != EOF) {
assert(hashVal < tableLength && insertTable[hashVal] == 0);
insertTable[hashVal] = 1;
}
while (fscanf(commitFile, "%d\n", &hashVal) != EOF) {
assert(hashVal < tableLength && commitTable[hashVal] == 0);
commitTable[hashVal] = 1;
}
/* Iterate over all hash table entries. Report an error if any entry exists in the hash
* table that was not committed, i.e.:
* (1) entry >= tableLength, or
* (2) insertTable[entry] == 0 && commitTable[entry] == 0
*/
bkey = &key;
bvalue = &value;
Tinit();
xid = Tbegin();
hashIter = ThashIterator(xid, hashTable, sizeof(int), sizeof(int));
while (ThashNext(xid, hashIter, (byte**) bkey, &keySize, (byte**) bvalue, &valueSize)) {
k = *key;
if (k >= tableLength || (insertTable[k] == 0 && commitTable[k] == 0)) {
printf("\t\tERROR: <%d> inserted but not committed\n", k); fflush(stdout);
return 1;
}
else {
commitTable[k] = 0;
}
}
Tabort(xid);
Tdeinit();
/* Now iterate over all commit table entries. If any entry was committed but not
* inserted into the hash table (i.e., commitTable[entry] == 1), then report an error.
*/
for (i = 0; i < tableLength; i++) {
if (commitTable[i] == 1) {
printf("\t\tERROR: <%d> committed but not inserted\n", i); fflush(stdout);
return 1;
}
}
/* Close the insert and commit log files. */
fclose(insertFile);
fclose(commitFile);
printf("\t\tChecker Process Exiting Normally\n"); fflush(stdout);
return 0;
}

344
test/stasis/fault_injection/fisubject.c Normal file
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/*---
This software is copyrighted by the Regents of the University of
California and Ashok Sudarsanam. The following terms apply to all files
associated with the software unless explicitly disclaimed in
individual files.
The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose,
provided that existing copyright notices are retained in all copies
and that this notice is included verbatim in any distributions. No
written agreement, license, or royalty fee is required for any of the
authorized uses. Modifications to this software may be copyrighted by
their authors and need not follow the licensing terms described here,
provided that the new terms are clearly indicated on the first page of
each file where they apply.
IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND
THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights" in
the software and related documentation as defined in the Federal
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you are
acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
authors grant the U.S. Government and others acting in its behalf
permission to use and distribute the software in accordance with the
terms specified in this license.
---*/
#include "fitest.h"
#include <limits.h>
#define BUFFER_INITIAL_LENGTH 256
recordid hashTable;
int insertLog, commitLog;
pthread_mutex_t hashTableMutex;
int numMallocs = 0;
int numLogWrites = 0;
int numPageWrites = 0;
int initHashTable;
static void* threadFunc(void* arg_ptr);
static void writeKeyToBuffer(char** insertBuffer, int* bufferCurrentLength,
int* bufferTotalSize, int key);
static void writeBufferToLog(int log, char* insertBuffer, int bufferCurrentLength);
int
runSubject() {
pthread_t* threads;
pthread_attr_t attr;
intptr_t k;
int xid, fd;
/* Need the following sleep call for debugging. */
//sleep(45);
printf("\tRunning Subject Process\n"); fflush(stdout);
readGlobalsFromSharedBuffer();
initHashTable = 1;
Tinit();
if (iteration == 0) {
/* Create the transactional hash table data structure. */
xid = Tbegin();
hashTable = ThashCreate(xid, sizeof(int), sizeof(int));
Tcommit(xid);
/* Write the hash table recordid to a file, so it can be
* reloaded during subsequent iterations.
*/
fd = open("recordid.txt", O_CREAT | O_WRONLY | O_SYNC, 0777);
write(fd, (char*) &hashTable, sizeof(recordid));
close(fd);
}
else {
/* Otherwise, read in the hash table from disk. */
fd = open("recordid.txt", O_RDONLY, 0777);
read(fd, (char*) &hashTable, sizeof(recordid));
close(fd);
}
initHashTable = 0;
/* Open the insert and commit log files. The insert-log keeps track of all insertions
* that were made to the hash-table, not all of which may have been committed. The
* commit-log keeps track of all insertions that were definitely committed.
*/
insertLog = open("inserts.txt", O_CREAT | O_RDWR | O_APPEND, 0777);
commitLog = open("commits.txt", O_CREAT | O_RDWR | O_APPEND, 0777);
/* Allocate the worker threads. */
threads = (pthread_t*) malloc(numThreads * sizeof(pthread_t));
pthread_attr_init(&attr);
pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
pthread_mutex_init(&hashTableMutex, NULL);
for (k = 0; k < numThreads; k++) {
pthread_create(&threads[k], &attr, threadFunc, (void*) k);
}
for (k = 0; k < numThreads; k++) {
pthread_join(threads[k], NULL);
}
/* Close the insert and commit log files. */
close(insertLog);
close(commitLog);
Tdeinit();
printf("\t\tSubject Process Exiting Normally\n"); fflush(stdout);
return 0;
}
static void*
threadFunc(void* arg_ptr) {
int j, k, startKey, endKey;
int xid, count = 0;
int bufferCurrentLength, bufferTotalSize;
char* insertBuffer;
/* Allocate the buffer that stores all outstanding hash table insertions. */
bufferTotalSize = BUFFER_INITIAL_LENGTH;
bufferCurrentLength = 0;
insertBuffer = (char*) malloc(bufferTotalSize * sizeof(char));
xid = Tbegin();
k = (intptr_t) arg_ptr;
startKey = baseKey + (k * opsPerThread);
endKey = startKey + opsPerThread;
for (j = startKey; j < endKey; j++) {
ThashInsert(xid, hashTable, (byte*)&j, sizeof(int), (byte*)&j, sizeof(int));
writeKeyToBuffer(&insertBuffer, &bufferCurrentLength, &bufferTotalSize, j);
count++;
if ((count % opsPerTransaction) == 0) {
/* Prior to committing the transaction, write the hash table insertion buffer to
* the insert-log so that we can keep track of which insertions were possibly
* committed. After the Tcommit() call, write the insertion buffer to the commit-
* log so that we can keep track of which insertions were definitely committed.
*/
writeBufferToLog(insertLog, insertBuffer, bufferCurrentLength);
Tcommit(xid);
writeBufferToLog(commitLog, insertBuffer, bufferCurrentLength);
bufferCurrentLength = 0;
xid = Tbegin();
count = 0;
}
}
/* Prior to committing the transaction, write the hash table insertion buffer to
* the insert-log so that we can keep track of which insertions were possibly
* committed. After the Tcommit() call, write the insertion buffer to the commit-
* log so that we can keep track of which insertions were definitely committed.
*/
writeBufferToLog(insertLog, insertBuffer, bufferCurrentLength);
Tcommit(xid);
writeBufferToLog(commitLog, insertBuffer, bufferCurrentLength);
return NULL;
}
static void
writeKeyToBuffer(char** insertBuffer, int* bufferCurrentLength,
int* bufferTotalSize, int key) {
int curLength, totalSize, bytesWritten;
curLength = *bufferCurrentLength;
totalSize = *bufferTotalSize;
/* Assume we need a maximum of 15 characters for the key, including the terminating
* newline and null character. Realloc if there's not enough space in the buffer.
*/
if ((curLength + 15) > totalSize) {
totalSize *= 2;
*insertBuffer = (char*) realloc(*insertBuffer, totalSize);
*bufferTotalSize = totalSize;
}
bytesWritten = sprintf(*insertBuffer + curLength, "%d\n", key);
curLength += bytesWritten;
assert(curLength < totalSize);
*bufferCurrentLength = curLength;
}
static void
writeBufferToLog(int log, char* insertBuffer, int bufferCurrentLength) {
pthread_mutex_lock(&hashTableMutex);
write(log, insertBuffer, bufferCurrentLength);
//fsync(log);
pthread_mutex_unlock(&hashTableMutex);
}
/* The following prototypes are needed to suppress GCC warnings. */
void* __real_malloc(int c);
size_t __real_fwrite(const void *ptr, size_t size, size_t nitems, FILE *stream);
ssize_t __real_pwrite(int fildes, const void *buf, size_t nbyte, __off64_t offset);
ssize_t __real_pwrite64(int fildes, const void *buf, size_t nbyte, __off64_t offset);
void*
__wrap_malloc(size_t size) {
/* fprintf(stderr, "inside wrapper function for malloc\n"); */
if (!mallocsBeforeFailure || currentMode != SUBJECT_MODE || initHashTable) {
return __real_malloc(size);
}
pthread_mutex_lock(&hashTableMutex);
numMallocs++;
if (numMallocs >= mallocsBeforeFailure) {
printf("\t\tMALLOC FAILURE: Subject Process Exiting Prematurely\n"); fflush(stdout);
/* Exit the process. */
exit(1);
}
pthread_mutex_unlock(&hashTableMutex);
return __real_malloc(size);
}
size_t
__wrap_fwrite(const void *ptr, size_t size, size_t nitems, FILE *stream) {
int updatedSize;
/* fprintf(stderr, "inside wrapper function for fwrite\n"); */
if (!logWritesBeforeFailure || currentMode != SUBJECT_MODE || initHashTable) {
return __real_fwrite(ptr, size, nitems, stream);
}
pthread_mutex_lock(&hashTableMutex);
numLogWrites++;
if (numLogWrites >= logWritesBeforeFailure) {
printf("\t\tFWRITE FAILURE: Subject Process Exiting Prematurely\n"); fflush(stdout);
/* Possibly write a percentage of the buffer, to simulate the writing of a torn log. */
if (logWriteAmountDuringFailure > 0) {
updatedSize = (int) ((nitems * logWriteAmountDuringFailure) / 100.0);
__real_fwrite(ptr, size, updatedSize, stream);
}
/* Exit the process. */
exit(1);
}
pthread_mutex_unlock(&hashTableMutex);
return __real_fwrite(ptr, size, nitems, stream);
}
ssize_t
__wrap_pwrite(int fildes, const void *buf, size_t nbyte, __off64_t offset) {
int updatedSize;
/* fprintf(stderr, "inside wrapper function for pwrite64\n"); */
if (!pageWritesBeforeFailure || currentMode != SUBJECT_MODE || initHashTable) {
return __real_pwrite(fildes, buf, nbyte, offset);
}
pthread_mutex_lock(&hashTableMutex);
numPageWrites++;
if (numPageWrites >= pageWritesBeforeFailure) {
printf("\t\tPWRITE FAILURE: Subject Process Exiting Prematurely\n"); fflush(stdout);
/* Possibly write a percentage of the buffer, to simulate the writing of a torn page. */
if (pageWriteAmountDuringFailure > 0) {
updatedSize = (int) ((nbyte * pageWriteAmountDuringFailure) / 100.0);
__real_pwrite64(fildes, buf, updatedSize, offset);
}
/* Exit the process. */
exit(1);
}
pthread_mutex_unlock(&hashTableMutex);
return __real_pwrite(fildes, buf, nbyte, offset);
}
ssize_t
__wrap_pwrite64(int fildes, const void *buf, size_t nbyte, __off64_t offset) {
int updatedSize;
/* fprintf(stderr, "inside wrapper function for pwrite64\n"); */
if (!pageWritesBeforeFailure || currentMode != SUBJECT_MODE || initHashTable) {
return __real_pwrite64(fildes, buf, nbyte, offset);
}
pthread_mutex_lock(&hashTableMutex);
numPageWrites++;
if (numPageWrites >= pageWritesBeforeFailure) {
printf("\t\tPWRITE64 FAILURE: Subject Process Exiting Prematurely\n"); fflush(stdout);
/* Possibly write a percentage of the buffer, to simulate the writing of a torn page. */
if (pageWriteAmountDuringFailure > 0) {
updatedSize = (int) ((nbyte * pageWriteAmountDuringFailure) / 100.0);
__real_pwrite64(fildes, buf, updatedSize, offset);
}
/* Exit the process. */
exit(1);
}
pthread_mutex_unlock(&hashTableMutex);
return __real_pwrite64(fildes, buf, nbyte, offset);
}

228
test/stasis/fault_injection/fitest.c Normal file
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/*---
This software is copyrighted by the Regents of the University of
California and Ashok Sudarsanam. The following terms apply to all files
associated with the software unless explicitly disclaimed in
individual files.
The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose,
provided that existing copyright notices are retained in all copies
and that this notice is included verbatim in any distributions. No
written agreement, license, or royalty fee is required for any of the
authorized uses. Modifications to this software may be copyrighted by
their authors and need not follow the licensing terms described here,
provided that the new terms are clearly indicated on the first page of
each file where they apply.
IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND
THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights" in
the software and related documentation as defined in the Federal
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you are
acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
authors grant the U.S. Government and others acting in its behalf
permission to use and distribute the software in accordance with the
terms specified in this license.
---*/
#include "fitest.h"
testMode currentMode;
int iteration;
int baseKey;
int numThreads;
int opsPerThread;
int opsPerTransaction;
int mallocsBeforeFailure;
int logWritesBeforeFailure;
int pageWritesBeforeFailure;
int logWriteAmountDuringFailure;
int pageWriteAmountDuringFailure;
int main(int argc, char** argv) {
currentMode = INVALID_MODE;
if (argc == 1) {
currentMode = MASTER_MODE;
}
else {
if(!strcmp("-d",argv[1])) {
currentMode = INTERACTIVE_MODE;
} else {
currentMode = (testMode) atoi(argv[1]);
}
}
int err = 0;
switch (currentMode) {
case MASTER_MODE:
err = runMaster(argv[0],0);
break;
case INTERACTIVE_MODE:
err = runMaster(argv[0],1);
break;
case SUBJECT_MODE:
err = runSubject();
break;
case CHECKER_MODE:
err = runChecker();
break;
default:
printf("Usage: %s [-d]\n -d: Run interactively (facilitates debugging)\n", argv[0]);
err = 1;
}
return err;
}
int
runMaster(const char* execname, int interactive) {
pid_t pid;
int numIters, retval, errorFound = 0;
char modeBuf[20];
FILE* configFile;
int fail = 0;
/* Remove previously generated text files. */
unlink("logfile.txt");
unlink("storefile.txt");
unlink("inserts.txt");
unlink("commits.txt");
unlink("recordid.txt");
unlink("iterinfo.txt");
configFile = fopen("config.txt", "r");
fscanf(configFile, "num_iterations = %d\n\n", &numIters);
baseKey = 0;
for (iteration = 0; iteration < numIters; iteration++) {
printf("*** Testing <Iteration %d> ***\n", iteration); fflush(stdout);
printf("\tRunning Master Process\n"); fflush(stdout);
/* Read in the configuration for the current iteration and write to the
* file "iter.txt". We will use a shared buffer, instead of a file, to
* allow the various processes to communicate with each other.
*/
fscanf(configFile, "num_threads = %d\n", &numThreads);
fscanf(configFile, "ops_per_thread = %d\n", &opsPerThread);
fscanf(configFile, "ops_per_transaction = %d\n", &opsPerTransaction);
fscanf(configFile, "mallocs_before_failure = %d\n", &mallocsBeforeFailure);
fscanf(configFile, "log_writes_before_failure = %d (%d)\n",
&logWritesBeforeFailure, &logWriteAmountDuringFailure);
fscanf(configFile, "page_writes_before_failure = %d (%d)\n\n",
&pageWritesBeforeFailure, &pageWriteAmountDuringFailure);
writeGlobalsToSharedBuffer();
/* Fork a new process for the 'Subject'. */
pid = fork();
if (pid == 0) {
/* We are in the subject process. */
sprintf(modeBuf, "%d", (int) SUBJECT_MODE);
if(!interactive) {
retval = execl(execname, execname, modeBuf, (char*) 0);
perror("Couldn't exec subject process");
abort();
} else {
printf("manually run this, then press enter:\n\t%s %s\n", execname, modeBuf);
getc(stdin);
exit(0);
}
}
else {
/* We are in the master process, so wait for the subject process to exit. */
retval = waitpid(pid, NULL, 0);
assert(retval != -1);
/* Fork a new process for the 'Checker'. */
pid = fork();
if (pid == 0) {
/* We are in the checker process. */
sprintf(modeBuf, "%d", (int) CHECKER_MODE);
if(!interactive) {
execl(execname, execname, modeBuf, (char*) 0);
perror("Couldn't exec checker process");
abort();
} else {
printf("manually run this, then press enter:\n\t%s %s\n", execname, modeBuf);
getc(stdin);
exit(0);
}
}
else {
assert(pid != -1);
/* We are in the master process, so wait for the checker process to exit. */
retval = waitpid(pid, &errorFound, 0);
assert(retval != -1);
/* Exit the loop if an error was found during the checking process. */
if (errorFound) {
fail = 1;
break;
}
}
}
baseKey += (numThreads * opsPerThread);
}
printf("*** Testing Complete: %s ***\n", fail?"FAIL":"PASS"); fflush(stdout);
fclose(configFile);
return fail;
}
void
writeGlobalsToSharedBuffer() {
FILE* iterFile;
iterFile = fopen("iterinfo.txt", "w");
fprintf(iterFile, "%d %d %d %d %d %d %d %d %d %d\n",
iteration, baseKey, numThreads, opsPerThread, opsPerTransaction,
mallocsBeforeFailure, logWritesBeforeFailure, logWriteAmountDuringFailure,
pageWritesBeforeFailure, pageWriteAmountDuringFailure);
fclose(iterFile);
}
void
readGlobalsFromSharedBuffer() {
FILE* iterFile;
iterFile = fopen("iterinfo.txt", "r");
fscanf(iterFile, "%d %d %d %d %d %d %d %d %d %d\n",
&iteration, &baseKey, &numThreads, &opsPerThread, &opsPerTransaction,
&mallocsBeforeFailure, &logWritesBeforeFailure, &logWriteAmountDuringFailure,
&pageWritesBeforeFailure, &pageWriteAmountDuringFailure);
fclose(iterFile);
}

88
test/stasis/fault_injection/fitest.h Normal file
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/*---
This software is copyrighted by the Regents of the University of
California and Ashok Sudarsanam. The following terms apply to all files
associated with the software unless explicitly disclaimed in
individual files.
The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose,
provided that existing copyright notices are retained in all copies
and that this notice is included verbatim in any distributions. No
written agreement, license, or royalty fee is required for any of the
authorized uses. Modifications to this software may be copyrighted by
their authors and need not follow the licensing terms described here,
provided that the new terms are clearly indicated on the first page of
each file where they apply.
IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, AND
THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights" in
the software and related documentation as defined in the Federal
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you are
acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
authors grant the U.S. Government and others acting in its behalf
permission to use and distribute the software in accordance with the
terms specified in this license.
---*/
#ifndef FI_TEST_H
#define FI_TEST_H
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <unistd.h>
#include <fcntl.h>
#include <stasis/transactional.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <time.h>
#include <pthread.h>
typedef enum {
INVALID_MODE = 0,
MASTER_MODE,
SUBJECT_MODE,
CHECKER_MODE,
INTERACTIVE_MODE,
} testMode;
int runMaster(const char*, int interactive);
int runSubject();
int runChecker();
void writeGlobalsToSharedBuffer();
void readGlobalsFromSharedBuffer();
extern recordid hashTable;
extern testMode currentMode;
extern int iteration;
extern int baseKey;
extern int numThreads;
extern int opsPerThread;
extern int opsPerTransaction;
extern int mallocsBeforeFailure;
extern int logWritesBeforeFailure;
extern int pageWritesBeforeFailure;
extern int logWriteAmountDuringFailure;
extern int pageWriteAmountDuringFailure;
#endif