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build: avoid gcc preprocessor extensions

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Use of ',##__VA_ARGS__' is a gcc extension not guaranteed by
C99; thankfully, we can avoid it by lumping the format argument
into the var-args set.

* src/util/logging.h (VIR_DEBUG_INT, VIR_INFO_INT, VIR_WARN_INT)
(VIR_ERROR_INT, VIR_DEBUG, VIR_INFO, VIR_WARN, VIR_ERROR): Stick
to C99 var-arg macro syntax.
* examples/domain-events/events-c/event-test.c (VIR_DEBUG):
Simplify.
This commit is contained in:
Eric Blake 2011-05-11 13:24:50 -06:00
parent b65f37a4a1
commit bc6bfeaa17
2 changed files with 18 additions and 19 deletions
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3
examples/domain-events/events-c/event-test.c
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@ -8,8 +8,7 @@
#include <libvirt/libvirt.h>
#include <libvirt/virterror.h>
#define VIR_DEBUG(fmt, ...) printf("%s:%d: " fmt "\n", \
__func__, __LINE__, ##__VA_ARGS__)
#define VIR_DEBUG(fmt) printf("%s:%d: " fmt "\n", __func__, __LINE__)
#define STREQ(a,b) (strcmp(a,b) == 0)
#ifndef ATTRIBUTE_UNUSED

34
src/util/logging.h
View File

@ -31,28 +31,28 @@
* defined at runtime from the libvirt daemon configuration file
*/
# ifdef ENABLE_DEBUG
# define VIR_DEBUG_INT(category, f, l, fmt,...) \
virLogMessage(category, VIR_LOG_DEBUG, f, l, 0, fmt, ##__VA_ARGS__)
# define VIR_DEBUG_INT(category, f, l, ...) \
virLogMessage(category, VIR_LOG_DEBUG, f, l, 0, __VA_ARGS__)
# else
# define VIR_DEBUG_INT(category, f, l, fmt,...) \
# define VIR_DEBUG_INT(category, f, l, ...) \
do { } while (0)
# endif /* !ENABLE_DEBUG */
# define VIR_INFO_INT(category, f, l, fmt,...) \
virLogMessage(category, VIR_LOG_INFO, f, l, 0, fmt, ##__VA_ARGS__)
# define VIR_WARN_INT(category, f, l, fmt,...) \
virLogMessage(category, VIR_LOG_WARN, f, l, 0, fmt, ##__VA_ARGS__)
# define VIR_ERROR_INT(category, f, l, fmt,...) \
virLogMessage(category, VIR_LOG_ERROR, f, l, 0, fmt, ##__VA_ARGS__)
# define VIR_INFO_INT(category, f, l, ...) \
virLogMessage(category, VIR_LOG_INFO, f, l, 0, __VA_ARGS__)
# define VIR_WARN_INT(category, f, l, ...) \
virLogMessage(category, VIR_LOG_WARN, f, l, 0, __VA_ARGS__)
# define VIR_ERROR_INT(category, f, l, ...) \
virLogMessage(category, VIR_LOG_ERROR, f, l, 0, __VA_ARGS__)
# define VIR_DEBUG(fmt,...) \
VIR_DEBUG_INT("file." __FILE__, __func__, __LINE__, fmt, ##__VA_ARGS__)
# define VIR_INFO(fmt,...) \
VIR_INFO_INT("file." __FILE__, __func__, __LINE__, fmt, ##__VA_ARGS__)
# define VIR_WARN(fmt,...) \
VIR_WARN_INT("file." __FILE__, __func__, __LINE__, fmt, ##__VA_ARGS__)
# define VIR_ERROR(fmt,...) \
VIR_ERROR_INT("file." __FILE__, __func__, __LINE__, fmt, ##__VA_ARGS__)
# define VIR_DEBUG(...) \
VIR_DEBUG_INT("file." __FILE__, __func__, __LINE__, __VA_ARGS__)
# define VIR_INFO(...) \
VIR_INFO_INT("file." __FILE__, __func__, __LINE__, __VA_ARGS__)
# define VIR_WARN(...) \
VIR_WARN_INT("file." __FILE__, __func__, __LINE__, __VA_ARGS__)
# define VIR_ERROR(...) \
VIR_ERROR_INT("file." __FILE__, __func__, __LINE__, __VA_ARGS__)
/*
* To be made public