/**
* Configures verbosegc according to the parameters passed.
* @param filename The name of the file or output stream to log to.
* @param fileCount The number of files to log to.
* @param iterations The number of gc cycles to log to each file.
* @return true on success, false on failure
*/
bool
MM_VerboseManager::configureVerboseGC(OMR_VM *omrVM, char *filename, uintptr_t fileCount, uintptr_t iterations)
{
MM_EnvironmentBase env(omrVM);
MM_VerboseWriter *writer = NULL;
disableWriters();
WriterType type = parseWriterType(&env, filename, fileCount, iterations);
writer = findWriterInChain(type);
if (NULL != writer) {
writer->reconfigure(&env, filename, fileCount, iterations);
} else {
writer = createWriter(&env, type, filename, fileCount, iterations);
if(NULL == writer) {
return false;
}
_writerChain->addWriter(writer);
}
writer->isActive(true);
return true;
}
bool
MM_VerboseManagerImpl::reconfigureVerboseGC(OMR_VM *omrVM)
{
OMRPORT_ACCESS_FROM_OMRVM(omrVM);
/* If the pid is specified in the filename, then the pid of the
* new process will be used during verbose reinitialization,
* otherwise we append the pid of the child before the extension.
*/
WriterType type = parseWriterType(NULL, filename, 0, 0); /* All parameters other than filename aren't used */
if (
((type == VERBOSE_WRITER_FILE_LOGGING_SYNCHRONOUS) || (type == VERBOSE_WRITER_FILE_LOGGING_BUFFERED))
&& (NULL == strstr(filename, "%p")) && (NULL == strstr(filename, "%pid"))
) {
#define MAX_PID_LENGTH 16
char pidStr[MAX_PID_LENGTH];
uintptr_t pid = omrsysinfo_get_pid();
int pidLen = snprintf(pidStr,MAX_PID_LENGTH, "_%lu",(long unsigned int)pid);
/* Allocate new buffer */
char *newLog = (char *)omrmem_allocate_memory(pidLen+strlen(filename)+1, OMRMEM_CATEGORY_MM);
/* Locate extension, if any */
char *extension = strchr(filename, '.');
if (NULL != extension) {
size_t nameLen = extension - filename;
size_t extLen = strlen(filename) - nameLen;
strncpy(newLog, filename, nameLen);
strncpy(newLog + nameLen, pidStr, pidLen);
strncpy(newLog + nameLen + pidLen, extension, extLen);
newLog[nameLen + pidLen + extLen] = '\0'; /* strncpy does NOT NULL terminate */
} else {
size_t len = strlen(filename);
strncpy(newLog,filename,len);
newLog[len] = '\0'; /* strncpy does NOT NULL terminate */
strncat(newLog,pidStr,pidLen); /* strncat does NULL terminate */
}
omrmem_free_memory(this->filename);
filename = newLog;
}
return MM_VerboseManager::configureVerboseGC(omrVM, filename, 1, 0);
}
