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https://repo.dactyloidae.xyz/Dactyloidae/UXP.git
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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
This commit is contained in:
Roy Tam
commit
dcd9973243
150858 changed files with 23884658 additions and 0 deletions
479
security/nss/lib/util/nssilock.c
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479
security/nss/lib/util/nssilock.c
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@ -0,0 +1,479 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* nssilock.c - NSS lock instrumentation wrapper functions
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*
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* NOTE - These are not public interfaces
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*
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* Implementation Notes:
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* I've tried to make the instrumentation relatively non-intrusive.
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* To do this, I have used a single PR_LOG() call in each
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* instrumented function. There's room for improvement.
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*
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*
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*/
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#include "prinit.h"
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#include "prerror.h"
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#include "prlock.h"
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#include "prmem.h"
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#include "prenv.h"
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#include "prcvar.h"
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#include "prio.h"
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#if defined(NEED_NSS_ILOCK)
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#include "prlog.h"
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#include "nssilock.h"
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/*
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** Declare the instrumented PZLock
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*/
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struct pzlock_s {
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PRLock *lock; /* the PZLock to be instrumented */
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PRIntervalTime time; /* timestamp when the lock was aquired */
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nssILockType ltype;
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};
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/*
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** Declare the instrumented PZMonitor
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*/
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struct pzmonitor_s {
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PRMonitor *mon; /* the PZMonitor to be instrumented */
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PRIntervalTime time; /* timestamp when the monitor was aquired */
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nssILockType ltype;
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};
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/*
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** Declare the instrumented PZCondVar
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*/
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struct pzcondvar_s {
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PRCondVar *cvar; /* the PZCondVar to be instrumented */
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nssILockType ltype;
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};
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/*
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** Define a CallOnce type to ensure serialized self-initialization
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*/
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static PRCallOnceType coNssILock; /* CallOnce type */
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static PRIntn nssILockInitialized; /* initialization done when 1 */
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static PRLogModuleInfo *nssILog; /* Log instrumentation to this handle */
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#define NUM_TT_ENTRIES 6000000
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static PRInt32 traceIndex = -1; /* index into trace table */
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static struct pzTrace_s *tt; /* pointer to trace table */
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static PRInt32 ttBufSize = (NUM_TT_ENTRIES * sizeof(struct pzTrace_s));
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static PRCondVar *ttCVar;
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static PRLock *ttLock;
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static PRFileDesc *ttfd; /* trace table file */
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/*
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** Vtrace() -- Trace events, write events to external media
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**
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** Vtrace() records traced events in an in-memory trace table
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** when the trace table fills, Vtrace writes the entire table
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** to a file.
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**
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** data can be lost!
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**
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*/
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static void
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Vtrace(
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nssILockOp op,
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nssILockType ltype,
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PRIntervalTime callTime,
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PRIntervalTime heldTime,
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void *lock,
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PRIntn line,
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char *file)
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{
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PRInt32 idx;
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struct pzTrace_s *tp;
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RetryTrace:
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idx = PR_ATOMIC_INCREMENT(&traceIndex);
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while (NUM_TT_ENTRIES <= idx || op == FlushTT) {
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if (NUM_TT_ENTRIES == idx || op == FlushTT) {
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int writeSize = idx * sizeof(struct pzTrace_s);
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PR_Lock(ttLock);
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PR_Write(ttfd, tt, writeSize);
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traceIndex = -1;
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PR_NotifyAllCondVar(ttCVar);
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PR_Unlock(ttLock);
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goto RetryTrace;
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} else {
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PR_Lock(ttLock);
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while (NUM_TT_ENTRIES < idx)
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PR_WaitCondVar(ttCVar, PR_INTERVAL_NO_WAIT);
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PR_Unlock(ttLock);
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goto RetryTrace;
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}
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} /* end while() */
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/* create the trace entry */
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tp = tt + idx;
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tp->threadID = PR_GetThreadID(PR_GetCurrentThread());
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tp->op = op;
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tp->ltype = ltype;
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tp->callTime = callTime;
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tp->heldTime = heldTime;
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tp->lock = lock;
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tp->line = line;
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strcpy(tp->file, file);
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return;
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} /* --- end Vtrace() --- */
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/*
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** pz_TraceFlush() -- Force trace table write to file
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**
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*/
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extern void
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pz_TraceFlush(void)
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{
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Vtrace(FlushTT, nssILockSelfServ, 0, 0, NULL, 0, "");
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return;
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} /* --- end pz_TraceFlush() --- */
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/*
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** nssILockInit() -- Initialization for nssilock
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**
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** This function is called from the CallOnce mechanism.
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*/
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static PRStatus
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nssILockInit(void)
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{
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int i;
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nssILockInitialized = 1;
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/* new log module */
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nssILog = PR_NewLogModule("nssilock");
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if (NULL == nssILog) {
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return (PR_FAILURE);
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}
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tt = PR_Calloc(NUM_TT_ENTRIES, sizeof(struct pzTrace_s));
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if (NULL == tt) {
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fprintf(stderr, "nssilock: can't allocate trace table\n");
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exit(1);
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}
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ttfd = PR_Open("xxxTTLog", PR_CREATE_FILE | PR_WRONLY, 0666);
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if (NULL == ttfd) {
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fprintf(stderr, "Oh Drat! Can't open 'xxxTTLog'\n");
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exit(1);
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}
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ttLock = PR_NewLock();
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ttCVar = PR_NewCondVar(ttLock);
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return (PR_SUCCESS);
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} /* --- end nssILockInit() --- */
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extern PZLock *
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pz_NewLock(
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nssILockType ltype,
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char *file,
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PRIntn line)
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{
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PRStatus rc;
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PZLock *lock;
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/* Self Initialize the nssILock feature */
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if (!nssILockInitialized) {
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rc = PR_CallOnce(&coNssILock, nssILockInit);
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if (PR_FAILURE == rc) {
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PR_SetError(PR_UNKNOWN_ERROR, 0);
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return (NULL);
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}
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}
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lock = PR_NEWZAP(PZLock);
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if (NULL != lock) {
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lock->ltype = ltype;
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lock->lock = PR_NewLock();
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if (NULL == lock->lock) {
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PR_DELETE(lock);
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PORT_SetError(SEC_ERROR_NO_MEMORY);
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}
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} else {
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PORT_SetError(SEC_ERROR_NO_MEMORY);
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}
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Vtrace(NewLock, ltype, 0, 0, lock, line, file);
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return (lock);
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} /* --- end pz_NewLock() --- */
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extern void
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pz_Lock(
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PZLock *lock,
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char *file,
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PRIntn line)
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{
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PRIntervalTime callTime;
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callTime = PR_IntervalNow();
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PR_Lock(lock->lock);
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lock->time = PR_IntervalNow();
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callTime = lock->time - callTime;
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Vtrace(Lock, lock->ltype, callTime, 0, lock, line, file);
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return;
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} /* --- end pz_Lock() --- */
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extern PRStatus
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pz_Unlock(
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PZLock *lock,
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char *file,
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PRIntn line)
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{
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PRStatus rc;
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PRIntervalTime callTime, now, heldTime;
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callTime = PR_IntervalNow();
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rc = PR_Unlock(lock->lock);
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now = PR_IntervalNow();
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callTime = now - callTime;
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heldTime = now - lock->time;
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Vtrace(Unlock, lock->ltype, callTime, heldTime, lock, line, file);
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return (rc);
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} /* --- end pz_Unlock() --- */
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extern void
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pz_DestroyLock(
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PZLock *lock,
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char *file,
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PRIntn line)
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{
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Vtrace(DestroyLock, lock->ltype, 0, 0, lock, line, file);
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PR_DestroyLock(lock->lock);
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PR_DELETE(lock);
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return;
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} /* --- end pz_DestroyLock() --- */
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extern PZCondVar *
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pz_NewCondVar(
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PZLock *lock,
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char *file,
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PRIntn line)
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{
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PZCondVar *cvar;
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cvar = PR_NEWZAP(PZCondVar);
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if (NULL == cvar) {
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PORT_SetError(SEC_ERROR_NO_MEMORY);
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} else {
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cvar->ltype = lock->ltype;
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cvar->cvar = PR_NewCondVar(lock->lock);
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if (NULL == cvar->cvar) {
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PR_DELETE(cvar);
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PORT_SetError(SEC_ERROR_NO_MEMORY);
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}
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}
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Vtrace(NewCondVar, lock->ltype, 0, 0, cvar, line, file);
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return (cvar);
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} /* --- end pz_NewCondVar() --- */
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extern void
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pz_DestroyCondVar(
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PZCondVar *cvar,
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char *file,
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PRIntn line)
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{
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Vtrace(DestroyCondVar, cvar->ltype, 0, 0, cvar, line, file);
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PR_DestroyCondVar(cvar->cvar);
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PR_DELETE(cvar);
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} /* --- end pz_DestroyCondVar() --- */
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extern PRStatus
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pz_WaitCondVar(
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PZCondVar *cvar,
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PRIntervalTime timeout,
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char *file,
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PRIntn line)
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{
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PRStatus rc;
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PRIntervalTime callTime;
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callTime = PR_IntervalNow();
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rc = PR_WaitCondVar(cvar->cvar, timeout);
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callTime = PR_IntervalNow() - callTime;
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Vtrace(WaitCondVar, cvar->ltype, callTime, 0, cvar, line, file);
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return (rc);
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} /* --- end pz_WaitCondVar() --- */
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extern PRStatus
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pz_NotifyCondVar(
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PZCondVar *cvar,
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char *file,
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PRIntn line)
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{
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PRStatus rc;
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rc = PR_NotifyCondVar(cvar->cvar);
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Vtrace(NotifyCondVar, cvar->ltype, 0, 0, cvar, line, file);
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return (rc);
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} /* --- end pz_NotifyCondVar() --- */
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extern PRStatus
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pz_NotifyAllCondVar(
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PZCondVar *cvar,
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char *file,
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PRIntn line)
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{
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PRStatus rc;
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rc = PR_NotifyAllCondVar(cvar->cvar);
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Vtrace(NotifyAllCondVar, cvar->ltype, 0, 0, cvar, line, file);
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return (rc);
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} /* --- end pz_NotifyAllCondVar() --- */
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extern PZMonitor *
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pz_NewMonitor(
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nssILockType ltype,
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char *file,
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PRIntn line)
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{
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PRStatus rc;
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PZMonitor *mon;
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/* Self Initialize the nssILock feature */
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if (!nssILockInitialized) {
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rc = PR_CallOnce(&coNssILock, nssILockInit);
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if (PR_FAILURE == rc) {
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PR_SetError(PR_UNKNOWN_ERROR, 0);
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return (NULL);
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}
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}
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mon = PR_NEWZAP(PZMonitor);
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if (NULL != mon) {
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mon->ltype = ltype;
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mon->mon = PR_NewMonitor();
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if (NULL == mon->mon) {
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PR_DELETE(mon);
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PORT_SetError(SEC_ERROR_NO_MEMORY);
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}
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} else {
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PORT_SetError(SEC_ERROR_NO_MEMORY);
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}
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Vtrace(NewMonitor, ltype, 0, 0, mon, line, file);
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return (mon);
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} /* --- end pz_NewMonitor() --- */
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extern void
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pz_DestroyMonitor(
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PZMonitor *mon,
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char *file,
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PRIntn line)
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{
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Vtrace(DestroyMonitor, mon->ltype, 0, 0, mon, line, file);
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PR_DestroyMonitor(mon->mon);
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PR_DELETE(mon);
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return;
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} /* --- end pz_DestroyMonitor() --- */
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extern void
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pz_EnterMonitor(
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PZMonitor *mon,
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char *file,
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PRIntn line)
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{
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PRIntervalTime callTime, now;
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callTime = PR_IntervalNow();
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PR_EnterMonitor(mon->mon);
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now = PR_IntervalNow();
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callTime = now - callTime;
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if (PR_GetMonitorEntryCount(mon->mon) == 1) {
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mon->time = now;
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}
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Vtrace(EnterMonitor, mon->ltype, callTime, 0, mon, line, file);
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return;
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} /* --- end pz_EnterMonitor() --- */
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extern PRStatus
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pz_ExitMonitor(
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PZMonitor *mon,
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char *file,
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PRIntn line)
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{
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PRStatus rc;
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PRIntervalTime callTime, now, heldTime;
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PRIntn mec = PR_GetMonitorEntryCount(mon->mon);
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heldTime = (PRIntervalTime)-1;
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callTime = PR_IntervalNow();
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rc = PR_ExitMonitor(mon->mon);
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now = PR_IntervalNow();
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callTime = now - callTime;
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if (mec == 1)
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heldTime = now - mon->time;
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Vtrace(ExitMonitor, mon->ltype, callTime, heldTime, mon, line, file);
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return (rc);
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} /* --- end pz_ExitMonitor() --- */
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extern PRIntn
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pz_GetMonitorEntryCount(
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PZMonitor *mon,
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char *file,
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PRIntn line)
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{
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return (PR_GetMonitorEntryCount(mon->mon));
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} /* --- end pz_GetMonitorEntryCount() --- */
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extern PRStatus
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pz_Wait(
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PZMonitor *mon,
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PRIntervalTime ticks,
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char *file,
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PRIntn line)
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{
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PRStatus rc;
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PRIntervalTime callTime;
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callTime = PR_IntervalNow();
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rc = PR_Wait(mon->mon, ticks);
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callTime = PR_IntervalNow() - callTime;
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Vtrace(Wait, mon->ltype, callTime, 0, mon, line, file);
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return (rc);
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} /* --- end pz_Wait() --- */
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extern PRStatus
|
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pz_Notify(
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PZMonitor *mon,
|
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char *file,
|
||||
PRIntn line)
|
||||
{
|
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PRStatus rc;
|
||||
PRIntervalTime callTime;
|
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|
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callTime = PR_IntervalNow();
|
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rc = PR_Notify(mon->mon);
|
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callTime = PR_IntervalNow() - callTime;
|
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Vtrace(Notify, mon->ltype, callTime, 0, mon, line, file);
|
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return (rc);
|
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} /* --- end pz_Notify() --- */
|
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|
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extern PRStatus
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pz_NotifyAll(
|
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PZMonitor *mon,
|
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char *file,
|
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PRIntn line)
|
||||
{
|
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PRStatus rc;
|
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PRIntervalTime callTime;
|
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|
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callTime = PR_IntervalNow();
|
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rc = PR_NotifyAll(mon->mon);
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callTime = PR_IntervalNow() - callTime;
|
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Vtrace(NotifyAll, mon->ltype, callTime, 0, mon, line, file);
|
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return (rc);
|
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} /* --- end pz_NotifyAll() --- */
|
||||
|
||||
#endif /* NEED_NSS_ILOCK */
|
||||
/* --- end nssilock.c --------------------------------- */
|
||||
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