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Diffstat (limited to 'pr/src/io/prlog.c')
| -rw-r--r-- | pr/src/io/prlog.c | 504 |
1 files changed, 504 insertions, 0 deletions
diff --git a/pr/src/io/prlog.c b/pr/src/io/prlog.c new file mode 100644 index 00000000..f541a036 --- /dev/null +++ b/pr/src/io/prlog.c @@ -0,0 +1,504 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ + +/* + * The contents of this file are subject to the Mozilla Public + * License Version 1.1 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS + * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or + * implied. See the License for the specific language governing + * rights and limitations under the License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1998-2000 Netscape Communications Corporation. All + * Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the + * terms of the GNU General Public License Version 2 or later (the + * "GPL"), in which case the provisions of the GPL are applicable + * instead of those above. If you wish to allow use of your + * version of this file only under the terms of the GPL and not to + * allow others to use your version of this file under the MPL, + * indicate your decision by deleting the provisions above and + * replace them with the notice and other provisions required by + * the GPL. If you do not delete the provisions above, a recipient + * may use your version of this file under either the MPL or the + * GPL. + */ + +/* + * Contributors: + * + * This Original Code has been modified by IBM Corporation. + * Modifications made by IBM described herein are + * Copyright (c) International Business Machines Corporation, 2000. + * Modifications to Mozilla code or documentation identified per + * MPL Section 3.3 + * + * Date Modified by Description of modification + * 04/10/2000 IBM Corp. Added DebugBreak() definitions for OS/2 + */ + +#include "primpl.h" +#include "prenv.h" +#include "prprf.h" +#include <string.h> + +/* + * Lock used to lock the log. + * + * We can't define _PR_LOCK_LOG simply as PR_Lock because PR_Lock may + * contain assertions. We have to avoid assertions in _PR_LOCK_LOG + * because PR_ASSERT calls PR_LogPrint, which in turn calls _PR_LOCK_LOG. + * This can lead to infinite recursion. + */ +static PRLock *_pr_logLock; +#if defined(_PR_PTHREADS) || defined(_PR_BTHREADS) +#define _PR_LOCK_LOG() PR_Lock(_pr_logLock); +#define _PR_UNLOCK_LOG() PR_Unlock(_pr_logLock); +#elif defined(_PR_GLOBAL_THREADS_ONLY) +#define _PR_LOCK_LOG() { _PR_LOCK_LOCK(_pr_logLock) +#define _PR_UNLOCK_LOG() _PR_LOCK_UNLOCK(_pr_logLock); } +#else + +#define _PR_LOCK_LOG() \ +{ \ + PRIntn _is; \ + PRThread *_me = _PR_MD_CURRENT_THREAD(); \ + if (!_PR_IS_NATIVE_THREAD(_me)) \ + _PR_INTSOFF(_is); \ + _PR_LOCK_LOCK(_pr_logLock) + +#define _PR_UNLOCK_LOG() \ + _PR_LOCK_UNLOCK(_pr_logLock); \ + PR_ASSERT(_me == _PR_MD_CURRENT_THREAD()); \ + if (!_PR_IS_NATIVE_THREAD(_me)) \ + _PR_INTSON(_is); \ +} + +#endif + +#if defined(XP_PC) +#define strcasecmp stricmp +#define strncasecmp strnicmp +#endif + +/* + * On NT, we can't define _PUT_LOG as PR_Write or _PR_MD_WRITE, + * because every asynchronous file io operation leads to a fiber context + * switch. So we define _PUT_LOG as fputs (from stdio.h). A side + * benefit is that fputs handles the LF->CRLF translation. This + * code can also be used on other platforms with file stream io. + */ +#if defined(WIN32) || defined(XP_OS2) +#define _PR_USE_STDIO_FOR_LOGGING +#endif + +/* +** Coerce Win32 log output to use OutputDebugString() when +** NSPR_LOG_FILE is set to "WinDebug". +*/ +#if defined(XP_PC) +#define WIN32_DEBUG_FILE (FILE*)-2 +#endif + +/* Macros used to reduce #ifdef pollution */ + +#if defined(_PR_USE_STDIO_FOR_LOGGING) +#define _PUT_LOG(fd, buf, nb) {fputs(buf, fd); fflush(fd);} +#elif defined(_PR_PTHREADS) +#define _PUT_LOG(fd, buf, nb) PR_Write(fd, buf, nb) +#elif defined(XP_MAC) +#define _PUT_LOG(fd, buf, nb) _PR_MD_WRITE_SYNC(fd, buf, nb) +#else +#define _PUT_LOG(fd, buf, nb) _PR_MD_WRITE(fd, buf, nb) +#endif + +/************************************************************************/ + +static PRLogModuleInfo *logModules; + +static char *logBuf = NULL; +static char *logp; +static char *logEndp; +#ifdef _PR_USE_STDIO_FOR_LOGGING +static FILE *logFile = NULL; +#else +static PRFileDesc *logFile = 0; +#endif + +#define LINE_BUF_SIZE 512 +#define DEFAULT_BUF_SIZE 16384 + +#ifdef _PR_NEED_STRCASECMP + +/* + * strcasecmp is defined in /usr/ucblib/libucb.a on some platforms + * such as NCR and Unixware. Linking with both libc and libucb + * may cause some problem, so I just provide our own implementation + * of strcasecmp here. + */ + +static const unsigned char uc[] = +{ + '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007', + '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017', + '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027', + '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037', + ' ', '!', '"', '#', '$', '%', '&', '\'', + '(', ')', '*', '+', ',', '-', '.', '/', + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', ':', ';', '<', '=', '>', '?', + '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', + 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', + 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', + 'X', 'Y', 'Z', '[', '\\', ']', '^', '_', + '`', 'A', 'B', 'C', 'D', 'E', 'F', 'G', + 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', + 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', + 'X', 'Y', 'Z', '{', '|', '}', '~', '\177' +}; + +PRIntn strcasecmp(const char *a, const char *b) +{ + const unsigned char *ua = (const unsigned char *)a; + const unsigned char *ub = (const unsigned char *)b; + + if( ((const char *)0 == a) || (const char *)0 == b ) + return (PRIntn)(a-b); + + while( (uc[*ua] == uc[*ub]) && ('\0' != *a) ) + { + a++; + ua++; + ub++; + } + + return (PRIntn)(uc[*ua] - uc[*ub]); +} + +#endif /* _PR_NEED_STRCASECMP */ + +void _PR_InitLog(void) +{ + char *ev; + + _pr_logLock = PR_NewLock(); + + ev = PR_GetEnv("NSPR_LOG_MODULES"); + if (ev && ev[0]) { + char module[64]; + PRBool isSync = PR_FALSE; + PRIntn evlen = strlen(ev), pos = 0; + PRInt32 bufSize = DEFAULT_BUF_SIZE; + while (pos < evlen) { + PRIntn level = 1, count = 0, delta = 0; + count = sscanf(&ev[pos], "%64[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789]%n:%d%n", + module, &delta, &level, &delta); + pos += delta; + if (count == 0) break; + + /* + ** If count == 2, then we got module and level. If count + ** == 1, then level defaults to 1 (module enabled). + */ + if (strcasecmp(module, "sync") == 0) { + isSync = PR_TRUE; + } else if (strcasecmp(module, "bufsize") == 0) { + if (level >= LINE_BUF_SIZE) { + bufSize = level; + } + } else { + PRLogModuleInfo *lm = logModules; + PRBool skip_modcheck = + (0 == strcasecmp (module, "all")) ? PR_TRUE : PR_FALSE; + + while (lm != NULL) { + if (skip_modcheck) lm -> level = (PRLogModuleLevel)level; + else if (strcasecmp(module, lm->name) == 0) { + lm->level = (PRLogModuleLevel)level; + break; + } + lm = lm->next; + } + } + /*found:*/ + count = sscanf(&ev[pos], " , %n", &delta); + pos += delta; + if (count == -1) break; + } + PR_SetLogBuffering(isSync ? bufSize : 0); + + ev = PR_GetEnv("NSPR_LOG_FILE"); + if (ev && ev[0]) { + if (!PR_SetLogFile(ev)) { +#ifdef XP_PC + char* str = PR_smprintf("Unable to create nspr log file '%s'\n", ev); + if (str) { + OutputDebugString(str); + PR_smprintf_free(str); + } +#else + fprintf(stderr, "Unable to create nspr log file '%s'\n", ev); +#endif + } + } else { +#ifdef _PR_USE_STDIO_FOR_LOGGING + logFile = stderr; +#else + logFile = _pr_stderr; +#endif + } + } +} + +void _PR_LogCleanup(void) +{ + PR_LogFlush(); + +#ifdef _PR_USE_STDIO_FOR_LOGGING + if (logFile && logFile != stdout && logFile != stderr) { + fclose(logFile); + } +#else + if (logFile && logFile != _pr_stdout && logFile != _pr_stderr) { + PR_Close(logFile); + } +#endif +} + +static void _PR_SetLogModuleLevel( PRLogModuleInfo *lm ) +{ + char *ev; + + ev = PR_GetEnv("NSPR_LOG_MODULES"); + if (ev && ev[0]) { + char module[64]; + PRIntn evlen = strlen(ev), pos = 0; + while (pos < evlen) { + PRIntn level = 1, count = 0, delta = 0; + + count = sscanf(&ev[pos], "%64[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789]%n:%d%n", + module, &delta, &level, &delta); + pos += delta; + if (count == 0) break; + + /* + ** If count == 2, then we got module and level. If count + ** == 1, then level defaults to 1 (module enabled). + */ + if (lm != NULL) + { + if ((strcasecmp(module, "all") == 0) + || (strcasecmp(module, lm->name) == 0)) + { + lm->level = (PRLogModuleLevel)level; + } + } + count = sscanf(&ev[pos], " , %n", &delta); + pos += delta; + if (count == -1) break; + } + } +} /* end _PR_SetLogModuleLevel() */ + +PR_IMPLEMENT(PRLogModuleInfo*) PR_NewLogModule(const char *name) +{ + PRLogModuleInfo *lm; + + if (!_pr_initialized) _PR_ImplicitInitialization(); + + lm = PR_NEWZAP(PRLogModuleInfo); + if (lm) { + lm->name = strdup(name); + lm->level = PR_LOG_NONE; + lm->next = logModules; + logModules = lm; + } + _PR_SetLogModuleLevel(lm); + return lm; +} + +PR_IMPLEMENT(PRBool) PR_SetLogFile(const char *file) +{ +#ifdef _PR_USE_STDIO_FOR_LOGGING + FILE *newLogFile; + +#ifdef XP_PC + if ( strcmp( file, "WinDebug") == 0) + { + logFile = WIN32_DEBUG_FILE; + return(PR_TRUE); + } +#endif + newLogFile = fopen(file, "w"); + if (newLogFile) { + /* We do buffering ourselves. */ + setvbuf(newLogFile, NULL, _IONBF, 0); + if (logFile && logFile != stdout && logFile != stderr) { + fclose(logFile); + } + logFile = newLogFile; + } + return (PRBool) (newLogFile != 0); +#else + PRFileDesc *newLogFile; + + newLogFile = PR_Open(file, PR_WRONLY|PR_CREATE_FILE, 0666); + if (newLogFile) { + if (logFile && logFile != _pr_stdout && logFile != _pr_stderr) { + PR_Close(logFile); + } + logFile = newLogFile; +#if defined(XP_MAC) + SetLogFileTypeCreator(file); +#endif + } + return (PRBool) (newLogFile != 0); +#endif /* _PR_USE_STDIO_FOR_LOGGING */ +} + +PR_IMPLEMENT(void) PR_SetLogBuffering(PRIntn buffer_size) +{ + PR_LogFlush(); + + if (logBuf) + PR_DELETE(logBuf); + logBuf = 0; + + if (buffer_size >= LINE_BUF_SIZE) { + logp = logBuf = (char*) PR_MALLOC(buffer_size); + logEndp = logp + buffer_size; + } +} + +PR_IMPLEMENT(void) PR_LogPrint(const char *fmt, ...) +{ + va_list ap; + char line[LINE_BUF_SIZE]; + PRUint32 nb; + PRThread *me; + + if (!_pr_initialized) _PR_ImplicitInitialization(); + + if (!logFile) { + return; + } + + va_start(ap, fmt); + me = PR_GetCurrentThread(); + nb = PR_snprintf(line, sizeof(line)-1, "%ld[%p]: ", +#if defined(_PR_DCETHREADS) + /* The problem is that for _PR_DCETHREADS, pthread_t is not a + * pointer, but a structure; so you can't easily print it... + */ + me ? &(me->id): 0L, me); +#elif defined(_PR_BTHREADS) + me, me); +#else + me ? me->id : 0L, me); +#endif + + nb += PR_vsnprintf(line+nb, sizeof(line)-nb-1, fmt, ap); + if (nb && (line[nb-1] != '\n')) { +#ifndef XP_MAC + line[nb++] = '\n'; +#else + line[nb++] = '\015'; +#endif + line[nb] = '\0'; + } else { +#ifdef XP_MAC + line[nb-1] = '\015'; +#endif + } + va_end(ap); + + _PR_LOCK_LOG(); + if (logBuf == 0) { +#ifdef XP_PC + if ( logFile == WIN32_DEBUG_FILE) + OutputDebugString( line ); + else + _PUT_LOG(logFile, line, nb); +#else + _PUT_LOG(logFile, line, nb); +#endif + } else { + if (logp + nb > logEndp) { + _PUT_LOG(logFile, logBuf, logp - logBuf); + logp = logBuf; + } + memcpy(logp, line, nb); + logp += nb; + } + _PR_UNLOCK_LOG(); + PR_LogFlush(); +} + +PR_IMPLEMENT(void) PR_LogFlush(void) +{ + if (logBuf && logFile) { + _PR_LOCK_LOG(); + if (logp > logBuf) { + _PUT_LOG(logFile, logBuf, logp - logBuf); + logp = logBuf; + } + _PR_UNLOCK_LOG(); + } +} + +PR_IMPLEMENT(void) PR_Abort(void) +{ + PR_LogPrint("Aborting"); + abort(); +} + +#if defined(XP_OS2) +/* + * Added definitions for DebugBreak() for 2 different OS/2 compilers. + * Doing the int3 on purpose for Visual Age so that a developer can + * step over the instruction if so desired. Not always possible if + * trapping due to exception handling IBM-AKR + */ +#if defined(XP_OS2_VACPP) +#include <builtin.h> +static void DebugBreak(void) { _interrupt(3); } +#elif defined(XP_OS2_EMX) +/* Force a trap */ +static void DebugBreak(void) { int *pTrap=NULL; *pTrap = 1; } +#else +static void DebugBreak(void) { } +#endif +#endif /* XP_OS2 */ + +PR_IMPLEMENT(void) PR_Assert(const char *s, const char *file, PRIntn ln) +{ + PR_LogPrint("Assertion failure: %s, at %s:%d\n", s, file, ln); +#if defined(XP_UNIX) || defined(XP_OS2) || defined(XP_BEOS) + fprintf(stderr, "Assertion failure: %s, at %s:%d\n", s, file, ln); +#endif +#ifdef XP_MAC + dprintf("Assertion failure: %s, at %s:%d\n", s, file, ln); +#endif +#if defined(WIN32) || defined(XP_OS2) + DebugBreak(); +#endif +#ifndef XP_MAC + abort(); +#endif +} + +#ifdef XP_MAC +PR_IMPLEMENT(void) PR_Init_Log(void) +{ + _PR_InitLog(); +} +#endif |