[libvirt] [PATCH 4/7 v2] Turn virLogSource into a struct instead of an enum
Daniel P. Berrange
berrange at redhat.com
Mon Mar 10 15:01:24 UTC 2014
As part of the goal to get away from doing string matching on
filenames when deciding whether to emit a log message, turn
the virLogSource enum into a struct which contains a log
"name". There will eventually be one virLogSource instance
statically declared per source file. To minimise churn in this
commit though, a single global instance is used.
Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
---
src/libvirt_private.syms | 1 +
src/node_device/node_device_udev.c | 2 +-
src/qemu/qemu_capabilities.c | 2 +-
src/util/viraudit.c | 7 ++++---
src/util/viraudit.h | 10 ++++++----
src/util/virerror.c | 2 +-
src/util/virlog.c | 30 ++++++++++++------------------
src/util/virlog.h | 33 ++++++++++++++++-----------------
src/util/virprobe.h | 4 ++--
tests/testutils.c | 2 +-
10 files changed, 45 insertions(+), 48 deletions(-)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 80070c5..993f76a 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1442,6 +1442,7 @@ virLogParseOutputs;
virLogPriorityFromSyslog;
virLogProbablyLogMessage;
virLogReset;
+virLogSelf;
virLogSetBufferSize;
virLogSetDefaultPriority;
virLogSetFromEnv;
diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c
index 5d49968..5c48fe8 100644
--- a/src/node_device/node_device_udev.c
+++ b/src/node_device/node_device_udev.c
@@ -374,7 +374,7 @@ udevLogFunction(struct udev *udev ATTRIBUTE_UNUSED,
format = virBufferContentAndReset(&buf);
- virLogVMessage(VIR_LOG_FROM_LIBRARY,
+ virLogVMessage(&virLogSelf,
virLogPriorityFromSyslog(priority),
file, line, fn, NULL, format ? format : fmt, args);
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index cae25e0..6811d2e 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -2767,7 +2767,7 @@ virQEMUCapsLogProbeFailure(const char *binary)
};
virErrorPtr err = virGetLastError();
- virLogMessage(VIR_LOG_FROM_FILE,
+ virLogMessage(&virLogSelf,
VIR_LOG_WARN,
__FILE__, __LINE__, __func__,
meta,
diff --git a/src/util/viraudit.c b/src/util/viraudit.c
index 5dd4e1f..ac787f8 100644
--- a/src/util/viraudit.c
+++ b/src/util/viraudit.c
@@ -74,7 +74,8 @@ void virAuditLog(int logging)
}
-void virAuditSend(const char *filename,
+void virAuditSend(virLogSourcePtr source,
+ const char *filename,
size_t linenr,
const char *funcname,
const char *clienttty ATTRIBUTE_UNUSED,
@@ -104,11 +105,11 @@ void virAuditSend(const char *filename,
if (auditlog && str) {
if (success)
- virLogMessage(VIR_LOG_FROM_AUDIT, VIR_LOG_INFO,
+ virLogMessage(source, VIR_LOG_INFO,
filename, linenr, funcname,
NULL, "success=yes %s", str);
else
- virLogMessage(VIR_LOG_FROM_AUDIT, VIR_LOG_WARN,
+ virLogMessage(source, VIR_LOG_WARN,
filename, linenr, funcname,
NULL, "success=no %s", str);
}
diff --git a/src/util/viraudit.h b/src/util/viraudit.h
index b0356da..cf3da6c 100644
--- a/src/util/viraudit.h
+++ b/src/util/viraudit.h
@@ -24,6 +24,7 @@
# define __LIBVIRT_AUDIT_H__
# include "internal.h"
+# include "virlog.h"
enum virAuditRecordType {
VIR_AUDIT_RECORD_MACHINE_CONTROL,
@@ -35,22 +36,23 @@ int virAuditOpen(void);
void virAuditLog(int enabled);
-void virAuditSend(const char *filename, size_t linenr, const char *funcname,
+void virAuditSend(virLogSourcePtr source,
+ const char *filename, size_t linenr, const char *funcname,
const char *clienttty, const char *clientaddr,
enum virAuditRecordType type, bool success,
const char *fmt, ...)
- ATTRIBUTE_FMT_PRINTF(8, 9);
+ ATTRIBUTE_FMT_PRINTF(9, 10);
char *virAuditEncode(const char *key, const char *value);
void virAuditClose(void);
# define VIR_AUDIT(type, success, ...) \
- virAuditSend(__FILE__, __LINE__, __func__, \
+ virAuditSend(&virLogSelf, __FILE__, __LINE__, __func__, \
NULL, NULL, type, success, __VA_ARGS__);
# define VIR_AUDIT_USER(type, success, clienttty, clientaddr, ...) \
- virAuditSend(__FILE__, __LINE__, __func__, \
+ virAuditSend(&virLogSelf, __FILE__, __LINE__, __func__, \
clienttty, clientaddr, type, success, __VA_ARGS__);
# define VIR_AUDIT_STR(str) \
diff --git a/src/util/virerror.c b/src/util/virerror.c
index f85f6b3..4da8bcf 100644
--- a/src/util/virerror.c
+++ b/src/util/virerror.c
@@ -718,7 +718,7 @@ virRaiseErrorFull(const char *filename ATTRIBUTE_UNUSED,
*/
if (virLogGetNbOutputs() > 0 ||
virErrorLogPriorityFilter)
- virLogMessage(VIR_LOG_FROM_ERROR,
+ virLogMessage(&virLogSelf,
priority,
filename, linenr, funcname,
meta, "%s", str);
diff --git a/src/util/virlog.c b/src/util/virlog.c
index 801f259..b535623 100644
--- a/src/util/virlog.c
+++ b/src/util/virlog.c
@@ -60,14 +60,6 @@
#define VIR_FROM_THIS VIR_FROM_NONE
-VIR_ENUM_DECL(virLogSource)
-VIR_ENUM_IMPL(virLogSource, VIR_LOG_FROM_LAST,
- "file",
- "error",
- "audit",
- "trace",
- "library");
-
/*
* A logging buffer to keep some history over logs
*/
@@ -104,6 +96,8 @@ typedef virLogFilter *virLogFilterPtr;
static virLogFilterPtr virLogFilters = NULL;
static int virLogNbFilters = 0;
+virLogSource virLogSelf = { .name = "util.log" };
+
/*
* Outputs are used to emit the messages retained
* after filtering, multiple output can be used simultaneously
@@ -130,7 +124,7 @@ static virLogPriority virLogDefaultPriority = VIR_LOG_DEFAULT;
static int virLogResetFilters(void);
static int virLogResetOutputs(void);
-static void virLogOutputToFd(virLogSource src,
+static void virLogOutputToFd(virLogSourcePtr src,
virLogPriority priority,
const char *filename,
int linenr,
@@ -142,6 +136,7 @@ static void virLogOutputToFd(virLogSource src,
const char *str,
void *data);
+
/*
* Logs accesses must be serialized though a mutex
*/
@@ -765,7 +760,7 @@ virLogVersionString(const char **rawmsg,
* the message may be stored, sent to output or just discarded
*/
void
-virLogMessage(virLogSource source,
+virLogMessage(virLogSourcePtr source,
virLogPriority priority,
const char *filename,
int linenr,
@@ -797,7 +792,7 @@ virLogMessage(virLogSource source,
* the message may be stored, sent to output or just discarded
*/
void
-virLogVMessage(virLogSource source,
+virLogVMessage(virLogSourcePtr source,
virLogPriority priority,
const char *filename,
int linenr,
@@ -869,7 +864,7 @@ virLogVMessage(virLogSource source,
const char *rawver;
char *ver = NULL;
if (virLogVersionString(&rawver, &ver) >= 0)
- virLogOutputs[i].f(VIR_LOG_FROM_FILE, VIR_LOG_INFO,
+ virLogOutputs[i].f(&virLogSelf, VIR_LOG_INFO,
__FILE__, __LINE__, __func__,
timestamp, NULL, 0, rawver, ver,
virLogOutputs[i].data);
@@ -887,7 +882,7 @@ virLogVMessage(virLogSource source,
const char *rawver;
char *ver = NULL;
if (virLogVersionString(&rawver, &ver) >= 0)
- virLogOutputToFd(VIR_LOG_FROM_FILE, VIR_LOG_INFO,
+ virLogOutputToFd(&virLogSelf, VIR_LOG_INFO,
__FILE__, __LINE__, __func__,
timestamp, NULL, 0, rawver, ver,
(void *) STDERR_FILENO);
@@ -929,7 +924,7 @@ virLogStackTraceToFd(int fd)
}
static void
-virLogOutputToFd(virLogSource source ATTRIBUTE_UNUSED,
+virLogOutputToFd(virLogSourcePtr source ATTRIBUTE_UNUSED,
virLogPriority priority ATTRIBUTE_UNUSED,
const char *filename ATTRIBUTE_UNUSED,
int linenr ATTRIBUTE_UNUSED,
@@ -1033,7 +1028,7 @@ virLogPrioritySyslog(virLogPriority priority)
#if HAVE_SYSLOG_H
static void
-virLogOutputToSyslog(virLogSource source ATTRIBUTE_UNUSED,
+virLogOutputToSyslog(virLogSourcePtr source ATTRIBUTE_UNUSED,
virLogPriority priority,
const char *filename ATTRIBUTE_UNUSED,
int linenr ATTRIBUTE_UNUSED,
@@ -1160,7 +1155,7 @@ journalAddInt(struct journalState *state, const char *field, int value)
static int journalfd = -1;
static void
-virLogOutputToJournald(virLogSource source,
+virLogOutputToJournald(virLogSourcePtr source,
virLogPriority priority,
const char *filename,
int linenr,
@@ -1202,8 +1197,7 @@ virLogOutputToJournald(virLogSource source,
journalAddString(&state, "MESSAGE", rawstr);
journalAddInt(&state, "PRIORITY",
virLogPrioritySyslog(priority));
- journalAddString(&state, "LIBVIRT_SOURCE",
- virLogSourceTypeToString(source));
+ journalAddString(&state, "LIBVIRT_SOURCE", source->name);
if (filename)
journalAddString(&state, "CODE_FILE", filename);
journalAddInt(&state, "CODE_LINE", linenr);
diff --git a/src/util/virlog.h b/src/util/virlog.h
index 6ba2daa..4ac4c47 100644
--- a/src/util/virlog.h
+++ b/src/util/virlog.h
@@ -44,15 +44,14 @@ typedef enum {
VIR_LOG_TO_JOURNALD,
} virLogDestination;
-typedef enum {
- VIR_LOG_FROM_FILE, /* General debugging */
- VIR_LOG_FROM_ERROR, /* Errors reported */
- VIR_LOG_FROM_AUDIT, /* Audit operations */
- VIR_LOG_FROM_TRACE, /* DTrace probe pointers */
- VIR_LOG_FROM_LIBRARY, /* 3rd party libraries */
+typedef struct _virLogSource virLogSource;
+typedef virLogSource *virLogSourcePtr;
+
+struct _virLogSource {
+ const char *name;
+};
- VIR_LOG_FROM_LAST,
-} virLogSource;
+extern virLogSource virLogSelf;
/*
* If configured with --enable-debug=yes then library calls
@@ -68,7 +67,7 @@ typedef enum {
*
* Do nothing but eat parameters.
*/
-static inline void virLogEatParams(virLogSource unused, ...)
+static inline void virLogEatParams(virLogSourcePtr unused, ...)
{
/* Silence gcc */
unused = unused;
@@ -85,13 +84,13 @@ static inline void virLogEatParams(virLogSource unused, ...)
virLogMessage(src, VIR_LOG_ERROR, filename, linenr, funcname, NULL, __VA_ARGS__)
# define VIR_DEBUG(...) \
- VIR_DEBUG_INT(VIR_LOG_FROM_FILE, __FILE__, __LINE__, __func__, __VA_ARGS__)
+ VIR_DEBUG_INT(&virLogSelf, __FILE__, __LINE__, __func__, __VA_ARGS__)
# define VIR_INFO(...) \
- VIR_INFO_INT(VIR_LOG_FROM_FILE, __FILE__, __LINE__, __func__, __VA_ARGS__)
+ VIR_INFO_INT(&virLogSelf, __FILE__, __LINE__, __func__, __VA_ARGS__)
# define VIR_WARN(...) \
- VIR_WARN_INT(VIR_LOG_FROM_FILE, __FILE__, __LINE__, __func__, __VA_ARGS__)
+ VIR_WARN_INT(&virLogSelf, __FILE__, __LINE__, __func__, __VA_ARGS__)
# define VIR_ERROR(...) \
- VIR_ERROR_INT(VIR_LOG_FROM_FILE, __FILE__, __LINE__, __func__, __VA_ARGS__)
+ VIR_ERROR_INT(&virLogSelf, __FILE__, __LINE__, __func__, __VA_ARGS__)
struct _virLogMetadata {
@@ -105,7 +104,7 @@ typedef struct _virLogMetadata *virLogMetadataPtr;
/**
* virLogOutputFunc:
- * @src: the src for the message
+ * @src: the source of the log message
* @priority: the priority for the message
* @filename: file where the message was emitted
* @linenr: line where the message was emitted
@@ -119,7 +118,7 @@ typedef struct _virLogMetadata *virLogMetadataPtr;
*
* Callback function used to output messages
*/
-typedef void (*virLogOutputFunc) (virLogSource src,
+typedef void (*virLogOutputFunc) (virLogSourcePtr src,
virLogPriority priority,
const char *filename,
int linenr,
@@ -172,14 +171,14 @@ extern int virLogParseDefaultPriority(const char *priority);
extern int virLogParseFilters(const char *filters);
extern int virLogParseOutputs(const char *output);
extern int virLogPriorityFromSyslog(int priority);
-extern void virLogMessage(virLogSource src,
+extern void virLogMessage(virLogSourcePtr source,
virLogPriority priority,
const char *filename,
int linenr,
const char *funcname,
virLogMetadataPtr metadata,
const char *fmt, ...) ATTRIBUTE_FMT_PRINTF(7, 8);
-extern void virLogVMessage(virLogSource src,
+extern void virLogVMessage(virLogSourcePtr source,
virLogPriority priority,
const char *filename,
int linenr,
diff --git a/src/util/virprobe.h b/src/util/virprobe.h
index 3950e49..fe3c422 100644
--- a/src/util/virprobe.h
+++ b/src/util/virprobe.h
@@ -83,7 +83,7 @@
# define PROBE_EXPAND(NAME, ARGS) NAME(ARGS)
# define PROBE(NAME, FMT, ...) \
- VIR_DEBUG_INT(VIR_LOG_FROM_TRACE, \
+ VIR_DEBUG_INT(&virLogSelf, \
NULL, __LINE__, __func__, \
#NAME ": " FMT, __VA_ARGS__); \
if (LIBVIRT_ ## NAME ## _ENABLED()) { \
@@ -92,7 +92,7 @@
}
# else
# define PROBE(NAME, FMT, ...) \
- VIR_DEBUG_INT(VIR_LOG_FROM_TRACE, \
+ VIR_DEBUG_INT(&virLogSelf, \
NULL, __LINE__, __func__, \
#NAME ": " FMT, __VA_ARGS__);
# endif
diff --git a/tests/testutils.c b/tests/testutils.c
index ede6239..f5c815f 100644
--- a/tests/testutils.c
+++ b/tests/testutils.c
@@ -584,7 +584,7 @@ struct virtTestLogData {
static struct virtTestLogData testLog = { VIR_BUFFER_INITIALIZER };
static void
-virtTestLogOutput(virLogSource source ATTRIBUTE_UNUSED,
+virtTestLogOutput(virLogSourcePtr source ATTRIBUTE_UNUSED,
virLogPriority priority ATTRIBUTE_UNUSED,
const char *filename ATTRIBUTE_UNUSED,
int lineno ATTRIBUTE_UNUSED,
--
1.8.5.3
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