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Add support for redirecting or disabling messages from stdout to elsewhere.

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The newly introduced procedure wiiuse_set_output can be used to set the FILE*
used for each of the loglevels LOGLEVEL_ERROR, LOGLEVEL_WARNING, LOGLEVEL_INFO,
and LOGLEVEL_DEBUG. Setting the logfile to 0 disables log output for a
loglevel. This adds the macro definition WIIUSE_HAS_OUTPUT_REDIRECTION, so
programs can test for the feature.

The internal log macros in definitions.h all honor this output redirection mechanism.
This commit is contained in:
Johannes Zarl
2011-04-18 17:01:58 +02:00
committed by Ryan Pavlik
parent ca4a38c31c
commit 4829592601
3 changed files with 53 additions and 9 deletions
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27
src/definitions.h
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@@ -41,25 +41,34 @@
//#define WITH_WIIUSE_DEBUG
extern FILE* logtarget[];
#define OUTF_ERROR logtarget[0]
#define OUTF_WARNING logtarget[1]
#define OUTF_INFO logtarget[2]
#define OUTF_DEBUG logtarget[3]
/* Error output macros */
#define WIIUSE_ERROR(fmt, ...) fprintf(stderr, "[ERROR] " fmt "\n", ##__VA_ARGS__)
#define WIIUSE_ERROR(fmt, ...) do { if (OUTF_ERROR) fprintf(OUTF_ERROR, "[ERROR] " fmt "\n", ##__VA_ARGS__); } while(0)
/* Warning output macros */
#define WIIUSE_WARNING(fmt, ...) fprintf(stderr, "[WARNING] " fmt "\n", ##__VA_ARGS__)
#define WIIUSE_WARNING(fmt, ...) do { if (OUTF_WARNING) fprintf(OUTF_WARNING, "[WARNING] " fmt "\n", ##__VA_ARGS__); } while(0)
/* Information output macros */
#define WIIUSE_INFO(fmt, ...) fprintf(stderr, "[INFO] " fmt "\n", ##__VA_ARGS__)
#define WIIUSE_INFO(fmt, ...) do { if (OUTF_INFO) fprintf(OUTF_INFO, "[INFO] " fmt "\n", ##__VA_ARGS__); } while(0)
#ifdef WITH_WIIUSE_DEBUG
#ifdef WIN32
#define WIIUSE_DEBUG(fmt, ...) do { \
char* file = __FILE__; \
int i = strlen(file) - 1; \
for (; i && (file[i] != '\\'); --i); \
fprintf(stderr, "[DEBUG] %s:%i: " fmt "\n", file+i+1, __LINE__, ##__VA_ARGS__); \
#define WIIUSE_DEBUG(fmt, ...) do { \
if (OUTF_DEBUG) { \
char* file = __FILE__; \
int i = strlen(file) - 1; \
for (; i && (file[i] != '\\'); --i); \
fprintf(OUTF_DEBUG, "[DEBUG] %s:%i: " fmt "\n", file+i+1, __LINE__, ##__VA_ARGS__); \
} \
} while (0)
#else
#define WIIUSE_DEBUG(fmt, ...) fprintf(stderr, "[DEBUG] " __FILE__ ":%i: " fmt "\n", __LINE__, ##__VA_ARGS__)
#define WIIUSE_DEBUG(fmt, ...) do { if (OUTF_DEBUG) fprintf(OUTF_DEBUG, "[DEBUG] " __FILE__ ":%i: " fmt "\n", __LINE__, ##__VA_ARGS__); } while (0)
#endif
#else
#define WIIUSE_DEBUG(fmt, ...)