diff options
Diffstat (limited to 'tools/omfile.c')
| -rw-r--r-- | tools/omfile.c | 52 |
1 files changed, 43 insertions, 9 deletions
diff --git a/tools/omfile.c b/tools/omfile.c index 1ade3132..5e49afa9 100644 --- a/tools/omfile.c +++ b/tools/omfile.c @@ -48,10 +48,13 @@ #include <libgen.h> #include <unistd.h> #include <sys/file.h> - #ifdef OS_SOLARIS # include <fcntl.h> #endif +#ifdef HAVE_ATOMIC_BUILTINS +# include <pthread.h> +#endif + #include "conf.h" #include "syslogd-types.h" @@ -89,12 +92,33 @@ static uint64 clockFileAccess = 0; static unsigned clockFileAccess = 0; #endif /* and the "tick" function */ +#ifdef HAVE_ATOMIC_BUILTINS static inline uint64 getClockFileAccess(void) { return ATOMIC_INC_AND_FETCH(clockFileAccess); } - +#else +/* if we do not have atomics, we need to guard this via a mutex. + * the reason is that otherwise cache lookups may fail. That function + * requires the highest current value, and we can not provide that + * without using atomic instructions and mutexes. + * rgerhards, 2010-03-05 + */ +static pthread_mutex_t mutClock; +static uint64 +getClockFileAccess(void) +{ + uint64 retVal; + + BEGINfunc + d_pthread_mutex_lock(&mutClock); + retVal = ++clockFileAccess; + d_pthread_mutex_unlock(&mutClock); + ENDfunc + return retVal; +} +#endif /* #ifdef HAVE_ATOMIC_BUILTINS */ /* The following structure is a dynafile name cache entry. */ @@ -109,6 +133,7 @@ typedef struct s_dynaFileCacheEntry dynaFileCacheEntry; #define IOBUF_DFLT_SIZE 1024 /* default size for io buffers */ #define FLUSH_INTRVL_DFLT 1 /* default buffer flush interval (in seconds) */ #define USE_ASYNCWRITER_DFLT 0 /* default buffer use async writer */ +#define FLUSHONTX_DFLT 1 /* default for flush on TX end */ #define DFLT_bForceChown 0 /* globals for default values */ @@ -124,7 +149,7 @@ static uid_t dirGID; /* GID to be used for newly created directories */ static int bCreateDirs = 1;/* auto-create directories for dynaFiles: 0 - no, 1 - yes */ static int bEnableSync = 0;/* enable syncing of files (no dash in front of pathname in conf): 0 - no, 1 - yes */ static int iZipLevel = 0; /* zip compression mode (0..9 as usual) */ -static bool bFlushOnTXEnd = 0;/* flush write buffers when transaction has ended? */ +static sbool bFlushOnTXEnd = FLUSHONTX_DFLT;/* flush write buffers when transaction has ended? */ static int64 iIOBufSize = IOBUF_DFLT_SIZE; /* size of an io buffer */ static int iFlushInterval = FLUSH_INTRVL_DFLT; /* how often flush the output buffer on inactivity? */ static int bUseAsyncWriter = USE_ASYNCWRITER_DFLT; /* should we enable asynchronous writing? */ @@ -141,7 +166,7 @@ typedef struct _instanceData { int fDirCreateMode; /* creation mode for mkdir() */ int bCreateDirs; /* auto-create directories? */ int bSyncFile; /* should the file by sync()'ed? 1- yes, 0- no */ - bool bForceChown; /* force chown() on existing files? */ + sbool bForceChown; /* force chown() on existing files? */ uid_t fileUID; /* IDs for creation */ uid_t dirUID; gid_t fileGID; @@ -160,8 +185,8 @@ typedef struct _instanceData { int iZipLevel; /* zip mode to use for this selector */ int iIOBufSize; /* size of associated io buffer */ int iFlushInterval; /* how fast flush buffer on inactivity? */ - bool bFlushOnTXEnd; /* flush write buffers when transaction has ended? */ - bool bUseAsyncWriter; /* use async stream writer? */ + sbool bFlushOnTXEnd; /* flush write buffers when transaction has ended? */ + sbool bUseAsyncWriter; /* use async stream writer? */ } instanceData; @@ -187,8 +212,9 @@ CODESTARTdbgPrintInstInfo dbgprintf("\tflush interval=%d\n", pData->iFlushInterval); dbgprintf("\tfile cache size=%d\n", pData->iDynaFileCacheSize); dbgprintf("\tcreate directories: %s\n", pData->bCreateDirs ? "yes" : "no"); - dbgprintf("\tfile owner %d, group %d\n", pData->fileUID, pData->fileGID); - dbgprintf("\tdirectory owner %d, group %d\n", pData->dirUID, pData->dirGID); + dbgprintf("\tfile owner %d, group %d\n", (int) pData->fileUID, (int) pData->fileGID); + dbgprintf("\tforce chown() for all files: %s\n", pData->bForceChown ? "yes" : "no"); + dbgprintf("\tdirectory owner %d, group %d\n", (int) pData->dirUID, (int) pData->dirGID); dbgprintf("\tdir create mode 0%3.3o, file create mode 0%3.3o\n", pData->fDirCreateMode, pData->fCreateMode); dbgprintf("\tfail if owner/group can not be set: %s\n", pData->bFailOnChown ? "yes" : "no"); @@ -822,7 +848,7 @@ static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __a bCreateDirs = 1; bEnableSync = 0; iZipLevel = 0; - bFlushOnTXEnd = 0; + bFlushOnTXEnd = FLUSHONTX_DFLT; iIOBufSize = IOBUF_DFLT_SIZE; iFlushInterval = FLUSH_INTRVL_DFLT; bUseAsyncWriter = USE_ASYNCWRITER_DFLT; @@ -853,6 +879,9 @@ CODESTARTmodExit objRelease(errmsg, CORE_COMPONENT); objRelease(strm, CORE_COMPONENT); free(pszFileDfltTplName); +# ifndef HAVE_ATOMIC_BUILTINS + pthread_mutex_destroy(&mutClock); +# endif ENDmodExit @@ -870,6 +899,11 @@ CODESTARTmodInit CODEmodInit_QueryRegCFSLineHdlr CHKiRet(objUse(errmsg, CORE_COMPONENT)); CHKiRet(objUse(strm, CORE_COMPONENT)); + +# ifndef HAVE_ATOMIC_BUILTINS + pthread_mutex_init(&mutClock, NULL); +# endif + INITChkCoreFeature(bCoreSupportsBatching, CORE_FEATURE_BATCHING); DBGPRINTF("omfile: %susing transactional output interface.\n", bCoreSupportsBatching ? "" : "not "); CHKiRet(omsdRegCFSLineHdlr((uchar *)"dynafilecachesize", 0, eCmdHdlrInt, (void*) setDynaFileCacheSize, NULL, STD_LOADABLE_MODULE_ID)); |